Browse by Fellow

Up a level
Export as [feed] Atom [feed] RSS 1.0 [feed] RSS 2.0
Number of items: 188.

Verma, Rajiv K. ; Ila, Hiriyakkanavar ; Singh, Maya Shankar (2010) Heteroaromatic annulation studies on 2-[bis(methylthio)methylene]-1,3-indanedione: efficient routes to indenofused heterocycles Tetrahedron, 66 (37). pp. 7389-7398. ISSN 0040-4020

Yadav, Ashok K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2010) Synthesis of novel substituted phenanthrenes and polycyclic heteroarenes by Pd-catalyzed, direct, intramolecular arylation/heteroarylation European Journal of Organic Chemistry, 2010 (2). pp. 338-344. ISSN 1434-193X

Singh, Balendu ; Sundaram, G. S. M. ; Misra, Nimesh C. ; Ila, Hiriyakkanavar (2009) Methyl 1-imidazolecarbodithioate as a thiocarbonyl transfer reagent: a facile one-pot, three-component synthesis of novel 2-substituted-5-aryl-1-oxo-3-thioxo-1,2,3,5,11,11a-hexahydro-6H-imidazo-[1,5-b]-β-carbolines Tetrahedron Letters, 50 (3). pp. 366-369. ISSN 0040-4039

Kumar, Sarvesh ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2009) Efficient routes to pyrazolo[3,4-b]indoles and pyrazolo[1,5-a]benzimidazoles via palladium- and copper-catalyzed intramolecular C-C and C-N bond formation Journal of Organic Chemistry, 74 (18). pp. 7046-7051. ISSN 0022-3263

Singh, Prabal P. ; Yadav, A. K. ; Ila, H. ; Junjappa, H. (2009) Novel route to 2,3-substituted benzo[b]thiophenes via intramolecular radical cyclization Journal of Organic Chemistry, 74 (15). pp. 5496-5501. ISSN 0022-3263

Yadav, A. K. ; Yadav, S. K. S. ; Siddiqui, I. ; Peruncheralathan, S. ; Ila, H. ; Junjappa, H. (2008) A new one-pot, three-component synthesis of 2,3,5-substituted or annulated-6-(methylthio)pyridines Synlett, 2008 (17). pp. 2674-2680. ISSN 0936-5214

Kumar, Sarvesh ; Peruncheralathan, Saravanan ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2008) A novel anionic domino process for the synthesis of o-cyanoaryl-methylthio/alkyl/aryl/heteroaryl acetylenes Organic Letters, 10 (5). pp. 965-968. ISSN 1523-7060

Kumar, Sarvesh ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2007) Heteroaromatic annulation studies on 10,11-dihydro-11-[bis(methylthio)methylene]dibenzoxepin-10-one: a facile access to novel dibenzoxepino[4,5]-fused heterocycles Tetrahedron, 63 (40). pp. 10067-10076. ISSN 0040-4020

Sundaram, G. S. M. ; Venkatesh, C. ; Ila, H. ; Junjappa, H. (2007) 1-(methyldithiocarbonyl)imidazole as thiocarbonyl transfer reagent: a facile one-pot three-component synthesis of 3,5- and 1,3,5-substituted-2-thiohydantoins Synlett, 2007 (2). 0251-0254. ISSN 0936-5214

Sundaram, G. S. M. ; Singh, B. ; Venkatesh, C. ; Ila, H. ; Junjappa, H. (2007) Dipolar cycloaddition of ethyl isocyanoacetate to 3-chloro-2-(methylthio)/2-(methylsulfonyl)quinoxalines: highly regio- and chemoselective synthesis of substituted imidazo[1,5-a]quinoxaline-3-carboxylates Journal of Organic Chemistry, 72 (13). pp. 5020-5023. ISSN 0022-3263

Yadav, A. K. ; Peruncheralathan, S. ; Ila, H. ; Junjappa, H. (2007) Domino carbocationic rearrangement of α-[bis(methylthio)methylene]alkyl-2-(3/2-indolyl) cyclopropyl ketones Journal of Organic Chemistry, 72 (4). pp. 1388-1394. ISSN 0022-3263

Yadav, S. K. S. ; Yadav, A. K. ; Sundaram, G. S. M. ; Ila, H. ; Junjappa, H. (2007) Synthesis of novel 3-arylcyclopenta[c]quinolines via acid-induced domino cyclization of 2-arylamino-2-methylthioethenyl 2-arylcyclopropyl ketones ARKIVOC: Online Journal of Organic Chemistry, 5 . pp. 231-242. ISSN 1424-6376

Misra, N. C. ; Panda, K. ; Ila, H. ; Junjappa, H. (2007) An efficient highly regioselective synthesis of 2,3,4-trisubstituted pyrroles by cycloaddition of polarized ketene S,S- and N,S-acetals with activated methylene isocyanides Journal of Organic Chemistry, 72 (4). pp. 1246-1251. ISSN 0022-3263

Venkatesh, Chelvam ; Singh, Prabal P. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2006) Highly diastereoselective [3+2] cyclopenta[b]annulation of indoles with 2-arylcyclopropyl ketones and diesters European Journal of Organic Chemistry, 2006 (23). pp. 5378-5386. ISSN 1434-193X

Ila, Hiriyakkanavar ; Baron, Oliver ; Wagner, Andreas J. ; Knochel, Paul (2006) Functionalized magnesium organometallics as versatile intermediates for the synthesis of polyfunctional heterocycles Chemical Communications (6). pp. 583-593. ISSN 1359-7345

Venkatesh, C. ; Sundaram, G. S. M. ; Ila, H. ; Junjappa, H. (2006) Palladium-catalyzed intramolecular N-arylation of heteroarenes: a novel and efficient route to benzimidazo[1,2-a]quinolines Journal of Organic Chemistry, 71 (3). pp. 1280-1283. ISSN 0022-3263

Ila, Hiriyakkanavar ; Baron, Oliver ; Wagner, Andreas J. ; Knochel, Paul (2006) Preparation and reactions of heteroaryl organomagnesium compounds Chemistry Letters, 35 (1). pp. 2-7. ISSN 0366-7022

Panda, Kausik ; Venkatesh, Chelvam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2005) Efficient routes to acenaphthylene-fused polycyclic arenes/heteroarenes and heterocyclic fluoranthene analogues European Journal of Organic Chemistry, 2005 (10). pp. 2045-2055. ISSN 1434-193X

Chakrabarti, Sriparna ; Panda, Kausik ; Misra, Nimesh C. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2005) Aza-annulation of polarized N,S- and N,N-ketene acetals with itaconic anhydride: synthesis of novel functionalized 1,2,3,4-tetrahydro-2-pyridones and related azabicycles Synlett, 2005 (9). pp. 1437-1441. ISSN 0936-5214

Venkatesh, C. ; Singh, B. ; Mahata, P. K. ; Ila, H. ; Junjappa, H. (2005) Heteroannulation of nitroketene N,S-arylaminoacetals with POCl3: a novel highly regioselective synthesis of unsymmetrical 2,3-substituted quinoxalines Organic Letters, 7 (11). pp. 2169-2172. ISSN 1523-7060

Peruncheralathan, S. ; Yadav, A. K. ; Ila, H. ; Junjappa, H. (2005) Highly regioselective synthesis of 1-aryl-3 (or 5)-alkyl/aryl-5 (or 3)-(N-cycloamino)pyrazoles Journal of Organic Chemistry, 70 (23). pp. 9644-9647. ISSN 0022-3263

Peruncheralathan, S. ; Khan, T. A. ; Ila, H. ; Junjappa, H. (2005) Regioselective synthesis of 1-aryl-3,4-substituted/annulated-5-(methylthio)pyrazoles and 1-aryl-3-(methylthio)-4,5-substituted/annulated pyrazoles Journal of Organic Chemistry, 70 (24). pp. 10030-10035. ISSN 0022-3263

Chakrabarti, Sriparna ; Panda, Kausik ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2005) Synthesis of functionalized 1,2,3,4-tetrahydro-β-carboline derived enamines through bischler-napieralski type cyclization of polarized ketene N,S-acetals Synlett, 2005 (2). pp. 309-313. ISSN 0936-5214

Peruncheralathan, S. ; Sriram, V. ; Ila, H. ; Junjappa, H. (2004) Domino carbocationic rearrangements of α-[bis(methylthio)methylene]alkyl-2-(heteroaryl)cyclopropyl ketones Tetrahedron, 60 (26). pp. 5603-5612. ISSN 0040-4020

Nandi, Sukumar ; Panda, Kausik ; Suresh, J. R. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2004) α-Oxoketene dithioacetal mediated aromatic annulation: highly efficient and concise synthetic routes to potentially carcinogenic polycyclic aromatic hydrocarbons Tetrahedron, 60 (16). pp. 3663-3673. ISSN 0040-4020

Peruncheralathana, S. ; Khan, T. A. ; Ila, H. ; Junjappa, H. (2004) α-Oxoketene dithioacetals mediated heteroaromatic annulation protocol for benzoheterocycles: an efficient regiocontrolled synthesis of highly substituted and annulated indazoles Tetrahedron, 60 (15). pp. 3457-3464. ISSN 0040-4020

Tietze, Lutz F. ; Ila, Hiriyakkanavar ; Bell, Hubertus P. (2004) Enantioselective palladium-catalyzed transformations Chemical Reviews, 104 (7). pp. 3453-3516. ISSN 0009-2665

Panda, Kausik ; Siddiqui, Iffat ; Mahata, Pranab K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2004) Heteroannulation of 3-bis(methylthio)acrolein with aromatic amines - a convenient highly regioselective synthesis of 2-(methylthio)quinolines and their benzo/hetero fused analogs - a modified skraup quinoline synthesis Synlett, 2004 (3). pp. 449-452. ISSN 0936-5214

Khan, Taukeer Ahmad ; Peruncheralathan, Saravanan ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2004) S,S-dimethyl dithiocarbonate: a useful reagent for efficient conversion of aldoximes to nitriles Synlett, 2004 (11). pp. 2019-2021. ISSN 0936-5214

Sundaram, G. S. M. ; Venkatesh, C. ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (2004) A concise formal synthesis of alkaloid cryptotackiene and substituted 6H-indolo[2,3-b]quinolines Journal of Organic Chemistry, 69 (17). pp. 5760-5762. ISSN 0022-3263

Mahata, Pranab K. ; Kumar, U. K. Syam ; Sriram, V. ; Ila, H. ; Junjappa, H. (2003) 1-Bis(methoxy)-4-bis(methylthio)-3-buten-2-one: useful three carbon synthon for synthesis of five and six membered heterocycles with masked (or unmasked) aldehyde functionality Tetrahedron, 59 (15). pp. 2631-2639. ISSN 0040-4020

Chakrabarti, Sriparna ; Srivastav, Manish C. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2003) Aza-annulation of tetrahydroisoquinoline derived enamines: efficient and convergent routes to novel functionalized benzo[a]quinolizin-4-ones and pyrimido[6,1-a]isoquinoline derivatives Synlett, 2003 (15). pp. 2369-2373. ISSN 0936-5214

Panda, Kausik ; Suresh, J. R. ; Ila, H. ; Junjappa, H. (2003) Heteroaromatic annulation of 2-methyl/2-cyanomethylbenzimidazole dianions with α-oxoketene dithioacetals: a highly regioselective synthetic protocol for 1,2- and 2,3-substituted/annulated pyrido[1,2-a]benzimidazoles Journal of Organic Chemistry, 68 (9). pp. 3498-3506. ISSN 0022-3263

Mahata, P. K. ; Venkatesh, C. ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (2003) Reaction of α-oxoketene-N,S-arylaminoacetals with vilsmeier reagents: an efficient route to highly functionalized quinolines and their benzo/hetero-fused analogue Journal of Organic Chemistry, 68 (10). pp. 3966-3975. ISSN 0022-3263

Barun, Okram ; Nandi, Sukumar ; Panda, Kausik ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2002) [4 + 2] cycloaromatization of 4-bis(methylthio)-3-buten-2-one with active methylene ketones: a simple and facile phenol annulation Journal of Organic Chemistry, 67 (15). pp. 5398-5401. ISSN 0022-3263

Nandi, Sukumar ; Kumar, U. K. Syam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2002) Domino carbocationic cyclization of functionalized cyclopropyl ketones: facile one-pot access to peri- and angularly fused polycyclic aromatic and heteroaromatic frameworks Journal of Organic Chemistry, 67 (14). pp. 4916-4923. ISSN 0022-3263

Venkatesh, C. ; Ila, H. ; Junjappa, H. ; Mathur, Sanjay ; Huch, Volka (2002) Domino carbocationic rearrangement of aryl-2-(1-N-methyl/benzyl-3-indolyl)cyclopropyl ketones: a serendipitous route to 1H-cyclopenta[c]carbazole framework Journal of Organic Chemistry, 67 (26). pp. 9477-9480. ISSN 0022-3263

Ila, H. ; Junjappa, H. ; Barun, O. (2001) Studies on regioselective addition of benzylic organometallics to α-oxoketene dithioacetals in our aromatic annelation protocol Journal of Organometallic Chemistry, 624 (1-2). pp. 34-40. ISSN 0022-328X

Suresh, J. R. ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (2001) Aromatic and heteroaromatic annelation studies on 3-[bis(methylthio)methylene]-1-methyloxindole: synthesis of carbazoles and an efficient route to pyrido[2,3-b]indoles Tetrahedron, 57 (4). pp. 781-790. ISSN 0040-4020

Mohanta, P. K. ; Peruncheralathan, S. ; Ila, H. ; Junjappa, H. (2001) Domino carbocationic rearrangement of α-[bis(methylthio)methylene]alkyl-2-aryl- cyclopropyl carbinols: facile access to 1-arylindanes Journal of Organic Chemistry, 66 (4). pp. 1503-1508. ISSN 0022-3263

Barun, Okram ; Chakrabarti, Sriparna ; Ila, H. ; Junjappa, H. (2001) Ring annulation with tetrahydroisoquinoline-derived enaminones: highly convergent routes to functionalized pyrrolo[2,1-a]- and indolo[2,1-a]isoquinolines Journal of Organic Chemistry, 66 (12). pp. 4457-4461. ISSN 0022-3263

Roy, Amrita ; Nandi, Sukumar ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2001) An expedient route to 2,3-substituted and fused benzo[a]quinolizine-4-thione framework via ring annulation with β-oxodithioesters Organic Letters, 3 (2). pp. 229-232. ISSN 1523-7060

Kumar, U. K. Syam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (2001) A new route to spiropyrrolidinyl-oxindole alkaloids via iodide ion induced rearrangement of [(N-aziridinomethylthio)methylene]-2-oxindoles Organic Letters, 3 (26). pp. 4193-4196. ISSN 1523-7060

Suresh, J. R. ; Barun, Okram ; Ila, H. ; Junjappa, H. (2000) α-Oxoketene dithioacetals mediated benzoannelation of aromatic heterocycles: an efficient regiocontrolled synthesis of highly substituted and polycyclic benzo[b]thiophenes Tetrahedron, 56 (41). pp. 8153-8160. ISSN 0040-4020

Mohanta, Pramod K. ; Dhar, Sanchita ; Samal, S. K. ; Ila, H. ; Junjappa, H. (2000) 1-(Methyldithiocarbonyl)imidazole: a useful thiocarbonyl transfer reagent for synthesis of substituted thioureas Tetrahedron, 56 (4). pp. 629-637. ISSN 0040-4020

Mahata, P. K. ; Barun, O. ; Ila, H. ; Junjappa, H. (2000) Formation of acetaldehyde enolate from vinyl acetate and its reaction with aromatic and heteroaromatic aldehydes: an efficient synthesis of enals and polyenals Synlett (9). pp. 1345-1347. ISSN 0936-5214

Syam Kumar, U. K. ; Patra, Pranab K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar ; Bharadwaj, Parimal K. (2000) Lewis acid-induced rearrangment of α-[bis(methylthio)methylene]ethyl-2-styrylcyclopropylcarbinols: unexpected formation of a novel bicyclo[3.2.1]octadiene framework Journal of the Chemical Society, Perkin transactions 1 (10). pp. 1547-1550. ISSN 1472-7781

Barun, Okram ; Mohanta, Pramod Kumar ; Ila, H. ; Junjappa, H. (2000) An efficient general synthesis of novel functionalized tetrahydroisoquinoline derived enamines via polarized ketene N,S-acetals Synlett, 2000 (5). 0653-0657. ISSN 0936-5214

Barun, Okram ; Ila, H. ; Junjappa, H. ; Singh, Okram Mukherjee (2000) A facile access to 2-methylthio/alkoxy/amino-3-acylimidazo[1,2-a]pyridines based on cupric chloride promoted oxidative ring closure of α-oxoketene N,N-, N,O-, and N,N-acetals Journal of Organic Chemistry, 65 (5). pp. 1583-1587. ISSN 0022-3263

Mehta, Barun K. ; Nandi, Sukumar ; Ila, H. ; Junjappa, H. (1999) Highly regioselective 1,2-addition of alkoxybenzyl Grignard reagents to α-oxoketene dithioacetals: a facile regiocontrolled synthesis of alkoxynaphthalenes and their condensed analogs via aromatic annelation Tetrahedron, 55 (44). pp. 12843-12852. ISSN 0040-4020

Rao, M. V. Basaveswara ; Kumar, U. K. Syam ; Ila, H. ; Junjappa, H. (1999) Synthesis and reactions of 2-bis(methylthio)methylene-1-methyl-3-oxoindole: a facile access to benzo- and heterocyclo-fused carbazoles and indoles Tetrahedron, 55 (38). pp. 11563-11578. ISSN 0040-4020

Kishore, Kaushal ; Reddy, K. R. ; Suresh, J. R. ; Ila, H. ; Junjappa, H. (1999) Preparation of lithium 5-lithiomethy-3-methylpyrazole-1-carboxylate and its reaction with α-oxoketene dithioacetals: a new general method for substituted and annelated pyrazolo[1,5-a]pyridines Tetrahedron, 55 (24). pp. 7645-7652. ISSN 0040-4020

Baruna, Okram ; Patra, Pranab K. ; Ila, H. ; Junjappa, H. (1999) An expeditious synthesis of substituted and annelated pyrido[2,3-b]indoles Tetrahedron Letters, 40 (19). pp. 3797-3800. ISSN 0040-4039

Roy, Amrita ; Reddy, Kethiri R. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1999) Anionic [4 + 2] cycloaddition reactions of dihydropyrazolin-5-one dienolate with dienophiles: a novel approach for substituted and fused indazolones Journal of the Chemical Society, Perkin Transactions 1 (20). pp. 3001-3004. ISSN 0300-922X

Roy, Amrita ; Reddy, K. R. ; Mohanta, Pramod K. ; Ila, H. ; Junjappat, H. (1999) Hydrogen peroxide/boric acid: an efficient system for oxidation of aromatic aldehydes and ketones to phenols Synthetic Communications, 29 (21). pp. 3781-3791. ISSN 0039-7911

Singh, Okram Mukherjee ; Junjappa, H. ; Ila, H. (1999) A facile synthesis of 3-cyclopropyl- and 5-cyclopropyl-isoxazoles Journal of Chemical Research, Synopses (6). pp. 398-399. ISSN 0308-2342

Terang, Nobin ; Mehta, Barun K. ; Ila, H. ; Junjappa, H. (1998) Trimethylsilyl chloride assisted conjugate addition-elimination of organocopper reagents to 2-bis(methylthio)nitroethylene: an efficient and highly stereoselective synthesis of 2-methylthio-2-alkyl/aryl-1-nitroethylenes and their application for synthesis of nitroheterocycles Tetrahedron, 54 (42). pp. 12973-12984. ISSN 0040-4020

Patra, Pranab K. ; Suresh, J. R. ; Ila, H. ; Junjappa, Hiriyakkanavar (1998) A new regiospecific method for the synthesis of substituted phenanthridines and benzo[j]phenanthridines via aromatic annelation of 1-N-benzenesulfonyl-3-[bis(methylthio)methylene]-1,2,3,4-tetrahydroquinoline-4-one Tetrahedron, 54 (34). pp. 10167-10178. ISSN 0040-4020

Kumar, U. K. Syam ; Patra, Pranab K. ; Ila, H. ; Junjappa, H. (1998) Benzoannelation of 2-methylindole via 1-N-carboxy-2-methylindole dianion: a direct regiospecific route to substituted and annelated carbazoles Tetrahedron Letters, 39 (14). pp. 2029-2032. ISSN 0040-4039

Patra, Pranab K. ; Sriram, V. ; Ila, H. ; Junjappa, H. (1998) Lewis acid induced tandem carbocationic ring opening and cyclizations of α-[bis(methylthio)methylene]ethyl-2-styrylcyclopropyl ketones and carbinols: novel approach to bicyclo[3.3.0]octene and cyclopent[a]indene frameworks Tetrahedron, 54 (3-4). pp. 531-540. ISSN 0040-4020

Mehta, Barun K. ; Barun, Okram ; Ila, H. ; Junjappa, H. (1998) An annulation route to 1,4-dimethoxynaphthalenes Synthesis, 1998 (10). pp. 1483-1486. ISSN 0039-7881

Suresh, J. R. ; Patra, Pranab K. ; Ila, H. ; Junjappa, H. (1997) A new general regiocontrolled synthesis of highly substituted and condensed indoles via heteroaromatic annelation Tetrahedron, 53 (43). pp. 14737-14748. ISSN 0040-4020

Patra, Pranab K. ; Suresh, J. R. ; Ila, H. ; Junjappa, H. (1997) An expedient new synthesis of substituted carbazoles via α-oxoketene acetals through heteroaromatic annelation methodology Tetrahedron Letters, 38 (17). pp. 3119-3122. ISSN 0040-4039

Singh, Okram Mukherjee ; Junjappa, Hiriyakkanavar ; Ila, Hiriyakkanavar (1997) Reaction of lithioamino anions with α-oxoketene dithioketals: an improved and a new general method for the synthesis of α-oxoketene S, N- and N, N-ketals Journal of the Chemical Society, Perkin Transactions 1 (23). pp. 3561-3566. ISSN 0300-922X

Singh, O. M. ; Ila, H. ; Junjappa, H. (1997) Reaction of α-bis(methylthio)methylene cyclopropyl ketones with guanidine: synthesis of 2-amino-4-alkoxy-6-(arylcyclopropyl)pyrimidines Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 36 (12). pp. 1123-1125. ISSN 0376-4699

Singh, O. M. ; Junjappa, H. ; Ila, H. (1997) Synthesis of Novel 3-Cyano-4-methylthio-6-(arylcyclopropyl)-3-(1H)-pyridones and 5(3)-Methylthio-3(5)-(arylcyclopropyl)pyrazoles Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 36 (11). pp. 1056-1058. ISSN 0376-4699

Reddy, Kethiri R. ; Rao, Mandava V. Basaveswara ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1996) Direct synthesis of 2-(cycloalkylamino)-3,4-substituted thiophenes via selective deprotonation-cyclization of aroyl ketene N,S-acetals Synthetic Communications, 26 (22). 4157- 4164. ISSN 0039-7911

Yadav, K. Mallik ; Mohanta, Pramod K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1996) Regioselective synthesis of substituted 1-methyl- and 2-methylnaphthalenes Tetrahedron, 52 (44). pp. 14049-14056. ISSN 0040-4020

Satyanarayana, Janagani ; Rao, Mandava V. Basaveswara ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1996) Synthesis and Lewis acid assisted rearrangement of novel donor-acceptor substituted cyclopropanes: highly stereoselective [4+1] annulation approach to substituted and spiro cyclopentene derivatives Tetrahedron Letters, 37 (20). pp. 3565-3568. ISSN 0040-4039

Gupta, Arun K. ; Samal, Samir K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1996) Trimethyl borate induced thermal cycloaromatization of 1-aryl-1-(prop-2-ynyl)-3,3-bis(alkylthio)-2-propen-1-ols through acetylenic oxy-cope rearrangement Tetrahedron Letters, 37 (16). pp. 2817-2820. ISSN 0040-4039

Yadav, K. Mallik ; Suresh, Joghee R. ; Patro, Balaram ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1996) Stepwise controlled reduction of α-oxoketene dithioacetals with Zn/ZnCl2-TMEDA in ethanol Tetrahedron, 52 (13). pp. 4679-4686. ISSN 0040-4020

Mehta, Barun K. ; Dhar, Sanchita ; Ila, H. ; Junjappa, H. (1995) Highly efficient and selective displacement of alkylthio group on acylketene O,S-acetals by organocopper reagents: a novel route to 2-alkoxy/aryloxy-1-alkenylketones Tetrahedron Letters, 36 (51). pp. 9377-9380. ISSN 0040-4039

Reddy, Kethiri R. ; Roy, Amrita ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1995) Regiospecific generation and application of 3-lithiomethyl-2-methyl-1-phenylpyrazolin-5-one as 1,3-binucleophile in aromatic annelation: a novel approach for synthesis of 1,2-disubstituted indazolones and their condensed analogs Tetrahedron, 51 (40). pp. 10941-10952. ISSN 0040-4020

Rao, Mandava V. Basaveswara ; Satyanarayana, Janagani ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1995) Anionic [4+2] cycloaddition reactions of indole-2,3-dienolate with dienophiles: a facile regiospecific route to substituted carbazoles Tetrahedron Letters, 36 (19). pp. 3385-3388. ISSN 0040-4039

Mehta, Barun K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1995) Highly chemoselective and stereoselective conjugate addition of benzyl copper reagents to α-oxoketene dithioacetals Tetrahedron Letters, 36 (11). pp. 1925-1928. ISSN 0040-4039

Purkayastha, Makhan L. ; Bhat, Laxminarayan ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1995) 4-alkoxy-3-cyano-2(1H)-pyridones and 5-alkoxyisoxazoles and their aryl substituted and annulated derivatives from acylketene O,S-acetals Synthesis, 1995 (6). pp. 641-643. ISSN 0039-7881

Gupta, Akhilesh K. ; Reddy, Kethiri R. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1995) Cuprous bromide-promoted cyclization of ketene N,S-acetals with prop-2-ynyl bromide: synthesis of regiospecifically substituted and annelated 3-acyl(or nitro)-5-methyl pyrroles Journal of the Chemical Society, Perkin Transactions 1 (13). pp. 1725-1727. ISSN 0300-922X

Reddy, Kethiri R. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1995) Cycloaromatization of methyl (e)-4-(methyllithio)-3-(1-pyrrolidinyl)-2-butenoate with α-oxoketene N,S-acetals: direct synthesis of 3,5-bis(cycloalkylamino)biphenyls Synthesis, 1995 (8). pp. 929-930. ISSN 0039-7881

Gupta, Akhilesh Kumar ; Yadav, K. Mallik ; Patro, Balaram ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1995) Synthesis of D-ring functionalized and D-benzo/hetero-annulated estrone derivatives via α-oxoketene dithioacetal Synthesis, 1995 (7). pp. 841-844. ISSN 0039-7881

Junjappa, H. ; Ila, H. (1994) α-Oxoketene dithioacetals as intermediates for aromatic annelation Phosphorus, Sulfur, and Silicon and the Related Elements, 95 (1-4). pp. 35-54. ISSN 1042-6507

Patro, Balaram ; Deb, Bishwajit ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1994) Rearrangement studies on 3,3-bis(methylthio)-1-(arylcyclopropyl) -2-propen-1-ols: synthesis of functionalized cyclopentenes and polyene esters Tetrahedron, 50 (1). pp. 255-264. ISSN 0040-4020

Srinivasa Rao, Ch. ; Chandrasekharam, M. ; Patro, Balaram ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1994) Facile one pot thermal dehydration and dethioacetalization of β-hydroxydithioacetals with dimethyl sulphoxide: synthesis of α,β-unsaturated aldehydes Tetrahedron, 50 (19). pp. 5783-5794. ISSN 0040-4020

Reddy, Kethiri R. ; Singh, L. W. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1994) Highly diastereoselective anionic [3 + 2] annulation strategy for functionalized cyclopentenes via α -oxoketene dithioacetals Journal of the Chemical Society, Perkin Transactions 1 (17). pp. 2439-2442. ISSN 0300-922X

Bhat, Laxminarayan ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1994) Rearrangement studies on acylketene O-prop-2-ynyl S-methylmonothioketals Journal of the Chemical Society, Perkin Transactions 1, 1 (13). pp. 1749-1752. ISSN 0300-922X

Chandrasekharam, M. ; Bhat, Laxminaraya ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1993) Reformatsky reaction on thiocarbonyl compounds: new C-C bond forming reaction Tetrahedron Letters, 34 (40). pp. 6439-6442. ISSN 0040-4039

Patra, Pranab Kumar ; Patro, Balaram ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1993) Tandem carbocationic cyclization of bis(methylthio)methylene arylcyclopropyl ketones : a promising sequence for assembling functionalized cyclopent[a]indene framework Tetrahedron Letters, 34 (24). pp. 3951-3954. ISSN 0040-4039

Mallaiah, K. ; Satyanarayana, J. ; Ila, H. ; Junjappa, H. (1993) Chloroallyl anion : highly regio- and diastereoselective α-addition of chloroallyl zinc reagent to carbonyl compounds Tetrahedron Letters, 34 (19). pp. 3145-3148. ISSN 0040-4039

Chakrasali, R. T. ; Rao, Ch. Srinivasa ; Ila, H. ; Junjappa, H. (1993) Cyclocondensation of α-hydroxyimino-β-alkyl/arylimino-β-methylthioketones with hydrazine hydrate: synthesis of 3(5)-aryl-5(3)-alkyl/arylamino-4-nitroso (or amino) pyrazoles Journal of Heterocyclic Chemistry, 30 (1). pp. 129-134. ISSN 0022-152X

Pooranchand, Dinah ; Satyanarayana, J. ; Ila, H. ; Junjappa, H. (1993) Cycloaromatization of α-oxoketene dithioacetals with 5-lithiomethyl-3-methylisoxazole: a new general method for the synthesis of substituted and annulated 1,2-benzisoxazoles Synthesis, 1993 (2). pp. 241-244. ISSN 0039-7881

Sharma, S. K. ; Chakrasali, R. T. ; Ila, H. ; Junjappa, H. (1993) Cyclocondensation of 2,4-diamino-6(1H)pyrimidone with -oxoketene dithioacetals: synthesis of novel 5-alkylthio-7-substituted and 6,7-annulated-5-deazapteridines derivatives Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 32 (11). pp. 1173-1175. ISSN 0376-4699

Purkayastha, Makhan L. ; Chandrasekharam, Malapaka ; Vishwakarma, Jai N. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1993) Synthesis of α-oxoketene O-alkyl/aryl, S-alkyl acetals Synthesis, 1993 (2). pp. 245-249. ISSN 0039-7881

Bhat, Laxminarayan ; Ila, H. ; Junjappa, H. (1993) A novel route to 2-alkoxy / aryloxythiophenes via Simmons-Smith reaction on acylketene O,S-acetals Synthesis, 1993 (10). pp. 959-960. ISSN 0039-7881

Rao Ch., Srinivasa ; Chandrasekharam, M. ; Ila, H. ; Junjappa, H. (1992) Deprotection of thioacetals and 1,3-dithianes with dimethylsulphoxide Tetrahedron Letters, 33 (52). pp. 8163-8164. ISSN 0040-4039

Bhat, Laxminarayan ; Thomas, Abraham ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1992) Attempted Simmons-Smith reaction on α-oxoketene dithioacetals: a new general route to 3,4-substituted and annelated thiophenes Tetrahedron, 48 (47). pp. 10377-10388. ISSN 0040-4020

Satyanarayana, Janagani ; Reddy, Kethiri R. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1992) Cycloaromatization of α-oxoketene dithioacetals with enaminone derived carbanions Tetrahedron Letters, 33 (41). pp. 6173-6176. ISSN 0040-4039

Patro, Balaram ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1992) A highly stereoselective synthesis of substituted butadienes and conjugated polyenes Tetrahedron Letters, 33 (6). pp. 809-812. ISSN 0040-4039

Patro, Balaram ; Deb, Biswajit ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1992) Acid-induced ring opening of α-bis(methylthio)methylenealkyl cyclopropyl ketones: a novel route to substituted cyclopentanones through carbocationic cyclizations Journal of Organic Chemistry, 57 (8). pp. 2257-2263. ISSN 0022-3263

Srinivasa Rao, Ch. ; Singh, Okram M. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1992) A new general route to 1,2-diarylethylenes, 1,4-diarylbutadienes and 1,6-diarylhexatrienes through cycloaromatization of β-oxodithioacetals Synthesis, 1992 (11). pp. 1075-1077. ISSN 0039-7881

Purkayastha, M. L. ; Patro, B. ; Ila, H. ; Junjappa, H. (1991) Regioselective synthesis of 3(or 5)-styryl-/(4-aryl-1,3-butadienyl)-/(6-aryl-1,3,5-hexatrienyl)-5(or 3)-(methylthio)isoxazoles and pyrazoles via α-oxoketene dithioacetals Journal of Heterocyclic Chemistry, 28 (5). pp. 1341-1349. ISSN 0022-152X

Bhat, Laxminarayan ; Thomas, Abraham ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1991) Studies on lead tetraacetate oxidation of α-oxoketene dithioacetals Tetrahedron Letters, 47 (2). pp. 305-312. ISSN 0040-4039

Srinivasa Rao, Ch. ; Balu, Maliakel P. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1991) Cycloaromatization of α-oxoketene dithioacetals and β-oxodithioacetals with benzyl-,1-(naphthylmethyl) and 2-(naphthylmethyl)magnesium halides: synthesis of condensed polynuclear aromatic hydrocarbons Tetrahedron, 47 (20-21). pp. 3499-3510. ISSN 0040-4020

Satyanarayana, Janagani ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1991) Cyclocondensation of α-oxoketene n,s-acetals with β-lithioamino-β-substituted acrylonitriles: a facile route to 2,6-substituted 4-amino-3-cyanopyridines Synthesis, 1991 (10). pp. 889-890. ISSN 0039-7881

Balu, M. P. ; Bhat, L. N. ; Ila, H. ; Junjappa, H. (1991) Studies on addition of grignard reagents and metal hydrides to -oxoketene N,S-acetals Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 30 (2). pp. 250-255. ISSN 0376-4699

Datta, Apurba ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Reformatskii reaction on α-oxo ketene dithioacetals: synthesis of substituted and fused ethyl 2-hydroxy-6-(methylthio)benzoates, 6-(methylthio)pyran-2-ones, and 6-(methylthio)-2(1H)pyridone derivatives Journal of Organic Chemistry, 55 (21). pp. 5589-5594. ISSN 0022-3263

Gupta, Arun K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Cycloaromatization of α-oxoketene dithioacetals with lithioacetonitrile and lithiopropionitrile: a facile route to substituted and annelated pyridines Tetrahedron, 46 (7). pp. 2561-2572. ISSN 0040-4020

Thomas, Abraham ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Cyclocondensation of 2-lithiomethylthiazoles and 2-lithiomethylthiazoline with α-oxoketene dithioacetals: synthesis of substituted and annelated thiazolo- and dihydrothiazolo[3,2-a]pyridinium compounds Tetrahedron, 46 (12). pp. 4295-4302. ISSN 0040-4020

Thomas, Abraham ; Chakraborty, Manjaree ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Cyclocondensation of oxoketene dithioacetals with 3-aminopyrazoles: a facile highly regioselective general route to substituted and fused pyrazolo [a̲]pyrimidines Tetrahedron, 46 (2). pp. 577-586. ISSN 0040-4020

Gupta, Arun K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Cyclocondensation of α-oxoketene dithioacetals with β-lithioamino-β- substituted acrylonitriles:synthesis of 2,6-substituted and 5,6-annelated 3-cyano-4- (methylthio) pyridines Tetrahedron, 46 (10). pp. 3703-3714. ISSN 0040-4020

Chandrasekharam, Malapaka ; Asokan, Chitoorthekkathil V. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Oxoketene dithioacetals as versatile synthons for alternative 1,3 to 1,11 carbonyl transpositions: a new polyene synthesis Tetrahedron Letters, 31 (12). pp. 1763-1766. ISSN 0040-4039

Junjappa, H. ; Ila, H. ; Asokan, C. V. (1990) α-Oxoketene-S,S-, N,S- and N,N-acetals: versatile intermediates in organic synthesis Tetrahedron, 46 (16). pp. 5423-5506. ISSN 0040-4020

Srinivasa Rao, Ch. ; Chakrasali, R. T. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Regio- and chemoselective conjugate 1,4-reduction of α-oxoketene dithioacetals with sodium borohydride and sodium cyanoborohydride Tetrahedron, 46 (6). pp. 2195-2204. ISSN 0040-4020

Balu, Maliakel P. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1990) Studies on cycloaddition reactions of 1,3-diphenyl-2-azaallyl lithium and ethyl (benzylideneamino) acetate anion with α-oxoketene dithioacetals Tetrahedron, 46 (19). pp. 6771-6782. ISSN 0040-4020

Bhat, Laxminarayan ; Thomas, Abraham ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1989) Attempted Simmons-Smith reaction on α-oxoketene dithioacetals: a new general route to 3,4-substituted and annelated thiophenes Tetrahedron Letters, 30 (23). pp. 3093-3096. ISSN 0040-4039

Datta, Apurba ; Pooranchand, Dinah ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1989) Darzen's reaction on oxoketene dithioacetals: a new versatile synthesis of substituted and annelated furan-2-carboxylates Tetrahedron, 45 (23). pp. 7631-7640. ISSN 0040-4020

Gupta, Akhilesh K. ; Chakrasali, R. T. ; Ila, H. ; Junjappa, H. (1989) Reaction of polarized ketene S,N-acetals with bromoacetaldehyde diethyl acetal: synthesis of 1-substituted 3-acyl- and 3-nitro-2-methylthiopyrroles and 1,2-annulated 3-acylpyrroles Synthesis, 2 . pp. 141-142. ISSN 0039-7881

Purkayastha, M. L. ; Ila, H. ; Junjappa, H. (1989) Regioselective synthesis of 5-alkylthio- and 3-alkylthioisoxazoles from acylketene dithioacetals Synthesis, 1989 (1). pp. 20-24. ISSN 0039-7881

Gupta, Arun K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1989) Studies on Diels-Alder cycloadditions of vinylketene dithioacetals Tetrahedron, 45 (5). pp. 1509-1516. ISSN 0040-4020

Vishwakarma, J. N. ; Mofizuddin, M. ; Ila, H. ; Junjappa, H. (1988) A facile synthesis of substituted 4,5,6,7-tetrahydropyrazolo[3,4-d]-pyrimidine and 1,2,3,4-tetrahydropyrazolo[1,5-a]triazine derivatives Journal of Heterocyclic Chemistry, 25 (5). pp. 1387-1390. ISSN 0022-152X

Chandrasekharam, M. ; Singh, O. Mukherjee ; Ila, H. ; Junjappa, H. (1988) Reaction of β-oxodithioesters with propargylamine: a facile entry to novel 2-(acylalkylidene)-5-(methylene)thiazolidines Synthetic Communications, 28 (16). pp. 3073-3079. ISSN 0039-7911

Deb, B. ; Asokan, C. V. ; Ila, H. ; Junjappa, H. (1988) Acid catalyzed ring opening of α-bis(methylthio)methylenealkyl cyclopropyl ketones: an intramolecular alkylation approach to substituted cyclopentanones Tetrahedron Letters, 29 (17). pp. 2111-2114. ISSN 0040-4039

Chakrasali, R. T. ; Ila, H. ; Junjappa, H. (1988) Cycloaddition of aroyl/acylketene S,N-acetals with tosyl azide: synthesis of novel 4-aroyl/acyl-5-amino-1h-1,2,3-triazoles and 3,4-annulated 1,2,3-triazoles Synthesis, 1988 (11). pp. 851-854. ISSN 0039-7881

Chakrasali, R. T. ; Ila, H. ; Junjappa, H. (1988) Cycloaddition of sodium azide to polarized ketene S,S- and S,N-acetals: synthesis of novel substituted triazole and tetrazole derivatives Synthesis, 1988 (6). pp. 453-455. ISSN 0039-7881

Balu, Maliakel P. ; Pooranchand, Dinah ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1988) Cycloaromatization of α-oxoketene dithioacetals with 3-methyl-5-lithiomethylisoxazole: a new general approach for synthesis of substituted and annelated 1,2-benzisoxazoles Tetrahedron Letters, 29 (4). pp. 501-504. ISSN 0040-4039

Gupta, Arun K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1988) Cycloaromatization of α-oxoketene dithioacetals with lithioacetonitrile: a facile route for 4-substituted and 4,5-annelated pyridines Tetrahedron Letters, 29 (50). pp. 6633-6636. ISSN 0040-4039

Gupta, Akhilesh K. ; Ila, H. ; Junjappa, H. (1988) Cyclocondensation of acylketene S,N- and N,N-acetals with maleic anhydride and maleimide: a facile one-step synthesis of pyrano [3,4-c]pyrrole, pyrrolo [3,4-c]pyridine and condensed pyrrole derivatives Synthesis, 1988 (4). pp. 284-286. ISSN 0039-7881

Datta, Apurba ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1988) Novel cycloaromatization in reformatsky reaction on ∝-oxoketene dithioacetals: a regioselective synthesis of substituted ethyl 2-hydroxy-6-methylthiobenzoates Tetrahedron Letters, 29 (4). pp. 497-500. ISSN 0040-4039

Vishwakarma, Jai Narain ; Thomas, Abraham ; Apparao, Satyam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1988) Polarized ketene S,S- and S,N-acetals. Part 52. Lead tetra-acetate oxidation of 3-anilino-3-methylthio-2-arylacrylonitriles. A novel approach to substituted indoles Journal of the Chemical Society, Perkin Transactions 1 (2). pp. 169-173. ISSN 0300-922X

Singh, Laitonjam W. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1988) Polarized ketene dithioacetals. Part 65. Studies on additions of 2-aroyl-3-cyano-1,1-bis(methylthio)propenide anions to hetero-multiple bonds Journal of the Chemical Society, Perkin Transactions 1, 1 (8). pp. 2365-2368. ISSN 0300-922X

Singh, L. W. ; Ila, H. ; Junjappa, H. (1988) Polarized ketene dithioacetals; 60. Synthesis of novel 6-aryl-5-bis(methylthio)methyl-3(2h)-pyridazinones Synthesis, 1988 (1). pp. 89-90. ISSN 0039-7881

Datta, A. ; Bhattacharjee, S. ; Ila, H. ; Junjappa, H. (1988) Polarized ketene dithioacetals; 71.1 Synthesis of 2,5-substituted 3-bis(methylthio)methylenetetrahydrofurans Synthesis, 1988 (9). pp. 725-727. ISSN 0039-7881

Chakrasali, R. T. ; Ila, H. ; Junjappa, H. (1988) Reaction of acylketene S,N-acetals with malonyl chloride: synthesis of novel 1,5-substituted 4-hydroxy-6-methylthio-2 (1h)-pyridones and 6,8-substituted 4-hydroxy-7-methylthio-2,5-dioxo-5,6-dihydro-2h-pyrano [3,2-c] pyridines Synthesis, 1988 (1). pp. 87-89. ISSN 0039-7881

Datta, A. ; Ila, H. ; Junjappa, H. (1988) Reformatsky reaction on aroylketene S,N-acetals: a facile route to 4-amino-6-aryl-2h-pyran-2-ones Synthesis, 1988 (3). pp. 248-250. ISSN 0039-7881

Thomas, Abraham ; Vishwakarma, Jai N. ; Apparao, Satyam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1988) Studies on lead tetraacetate oxidation of α-oxoketene S,N- and N,N-acetals Tetrahedron, 44 (6). pp. 1667-1672. ISSN 0040-4020

Asokan, C. V. ; Bhattacharji, S. ; Ila, H. ; Junjappa, H. (1988) Synthesis of methyl 5-aryl-3-oxo-4-pentenoates and novel substituted cyclopentenones Synthesis, 1988 (4). pp. 281-283. ISSN 0039-7881

Asokan, C. V. ; Balu, M. P. ; Ila, H. ; Junjappa, H. (1988) A facile route to 5-alkyl-1,1-bis(methylthio)penta-1,4-dien-3-ones Synthesis, 1988 (9). pp. 727-729. ISSN 0039-7881

Datta, A. ; Ila, H. ; Junjappa, H. (1988) A novel route to methyl 3-(3,4-disubstituted 5-alkylthio/amino-2-thienyl) propenoates Synthesis, 1988 (7). pp. 556-557. ISSN 0039-7881

Gupta, Arun K. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1987) Aromatic annelation via α-oxoketene dithioacetals: synthesis of thioresorcinol dimethyl ethers Tetrahedron Letters, 28 (13). pp. 1459-1462. ISSN 0040-4039

Balu, Maiiakel P. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1987) Cycloaromatization of α-oxoketene dithioacetals with 2-picolyllithium: a facile quinolizinium cation annelation Tetrahedron Letters, 28 (26). pp. 3023-3026. ISSN 0040-4039

Singh, Gurdeep ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1987) Polarised ketene dithioacetals. Part 50. Reactions of α-aroyl-α-bromoketene dithioacetals with hydrazine hydrate: formation of rearranged pyrazoles Journal of the Chemical Society, Perkin Transactions 1 . pp. 1945-1949. ISSN 0300-922X

Datta, Apurba ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1987) Polarized ketene dithioacetals 63 : stereoselective synthesis of α-ylidene-γ-butyrolactones Tetrahedron, 43 (22). pp. 5367-5374. ISSN 0040-4020

Deb, B. ; Asokan, C. V. ; Ila, H. ; Junjappa, H. (1987) Polarized ketene dithioacetals: 55: synthesis of novel 5-aryl-2-methylthio 4H-pyran-4-ones-from cinnomyl ketene dithioacetals Synthesis (10). pp. 893-895. ISSN 0039-7881

Singh, L. W. ; Ila, H. ; Junjappa, H. (1987) Polarized ketene dithioacetals; 53:A facile synthesis of 2-aryl-6-methylthio-4H-pyran-4-ones and a novel cycloaromatization reaction Synthesis, 1987 (10). pp. 873-875. ISSN 0039-7881

Deb, B. ; Asokan, C. V. ; Ila, H. ; Junjappa, H. (1987) Polarized ketene dithioacetals; 55: Synthesis of novel 5-aryl-2-methylthio-4H-pyran-4-ones from cinnamoylketene dithioacetals Synthesis, 1987 (10). pp. 893-895. ISSN 0039-7881

Pooranchand, Dinah ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1987) Reaction of dimethyl N-aryl- and N-alkylcarbonimidodithioates with aminoacetaldehyde diethyl acetal: a direct synthesis of 1-aryl- and 1-alkyl-2-methylthioimidazoles Synthesis, 1987 (12). pp. 1136-1138. ISSN 0039-7881

Singh, Gurdeep ; Deb, Biswajit ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1987) Synthesis of novel 2-amino-4-aryl-5-arylthio-6-methoxypyrimidines and 3(5)-aryl-4-arylthio-5(3)-methylthiopyrazoles via α-oxo-α-arylthioketene dithioacetals Synthesis, 1987 (3). pp. 286-287. ISSN 0039-7881

Pooranchand, D. ; Ila, H. ; Junjappa, H. (1987) A facile general route to 2,2-disubstituted 5-alkylthio-4-aroyl-2h-imidazoles Synthesis, 1987 (6). pp. 547-550. ISSN 0039-7881

Asokan, C. V. ; Ila, H. ; Junjappa, H. (1987) A novel route to stilbenes via cationic cycloaromatization Synthesis, 1987 (3). pp. 284-285. ISSN 0039-7881

Balu, Maliakel P. ; Singh, Gurdeep ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1986) Cycloaromatization of δ-oxoketendithioacetals with benzylmagnesium chloride: a novel naphthalene annelation reaction Tetrahedron Letters, 27 (1). pp. 117-120. ISSN 0040-4039

Singh, Gurdeep ; Ila, Hiriyakkanawar ; Junjappa, Hiriyakkanavar (1986) Reactions of α-oxoketenedithioacetals with phenylmagnesium bromide: synthesis of novel 1-phenyl-1-methylthio-3-phenyl (or 2,3-fused)-indenes and 2,3-fused heterocyclic-1,3-diphenyl-2-alken-1-ones Synthesis, 1986 (9). pp. 744-747. ISSN 0039-7881

Singh, Gurdeep ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1985) Bromination of α-aroylketene S,S-acetals: synthesis of novel α-aroyl-α-bromoketene S,S-acetals and their further synthetic transformations Synthesis, 1985 (2). pp. 165-169. ISSN 0039-7881

Asokan, Chitoorthekkathil V. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1985) Ketendithioacetals 39. Novel solvolytic rearrangements of 1,1-bis-(methylthio)-2,4-dimethyl-5-aryl (or styryl)-1,4-pentadien-3-ols to cyclopentenone derivative Tetrahedron Letters, 26 (8). pp. 1087-1090. ISSN 0040-4039

Apparao, Satyam ; Bhattacharjee, Shakti S. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1985) Polarized ketene dithioacetals. Part 41. Studies on base-catalysed rearrangements of 1,l-bis(alkylthio)-2-aroylpenta-1,4-dienes to novel 1,5-bis(alkylthio)-2-aroylpenta-1,3-dienes via a 1,5-alkylthio shift Journal of the Chemical Society, Perkin Transactions 1 . pp. 641-645. ISSN 0300-922X

Singh, Gurdeep ; Purkayastha, Makhan L. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1985) Polarized ketene dithioacetals. Part 42. Studies on the reactions of alkyl and aryl Grignard reagents with α-oxoketene dithioacetals Journal of the Chemical Society, Perkin Transactions 1 . pp. 1289-1294. ISSN 0300-922X

Apparao, S. ; Datta, A. ; Ila, H. ; Junjappa, H. (1985) Reformatsky reaction on α-oxoketene S,S-acetals: synthesis of novel polarized vinylketene S,S-acetals and dimethyl 2-aryl(methyl)-propene-1,3-dicarboxylates Synthesis, 1985 (2). pp. 169-171. ISSN 0039-7881

Asokan, C. V. ; Ila, H. ; Junjappa, H. (1985) A facile and convenient synthesis of methyl 7-aryl-2,4,6-heptatrienoates Synthesis, 1985 (2). pp. 163-165. ISSN 0039-7881

Singh, L. W. ; Ila, H. ; Junjappa, H. (1985) A facile synthesis of substituted 6-amino-2-methylthio-4H-thiopyran-4-ones Synthesis, 1985 (5). pp. 531-533. ISSN 0039-7881

Singh, Gurdeep ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1984) Cationic benzoannelation of active methylene ketones via oxoketendithioacetals Tetrahedron Letters, 25 (44). pp. 5095-5098. ISSN 0040-4039

Apparao, Satyam ; Datta, Apurba ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1984) Polarised ketene dithioacetals. Part 32. Studies on base-catalysed rearrangements of 2-bis(methylthio)methyleneindan-1-one, 2-bis(methylthio)methylene-1-tetralone, and 3-bis(methylthio)methylene-2,3-dihydro-1-benzothiopyran-4-one Journal of the Chemical Society, Perkin Transactions 1 . pp. 921-924. ISSN 0300-922X

Bhattacharjee, S. S. ; Ila, H. ; Junjappa, H. (1984) Reaction of cyanotrimethylammonium methylid with dialkyl trithiocarbonates: a facile synthesis of 3,3-bis[alkylthio]acrylonitriles Synthesis, 1984 (3). p. 249. ISSN 0039-7881

Rahman, A. ; Vishwakarma, J. N. ; Yadav, R. D. ; Ila, H. ; Junjappa, H. (1984) Reaction of α-ketoketene S,N-acetals with hydroxylamine: a facile general route to 5-aryl-3-(N-arylamino, N-alkylamino, or N-azacycloalkyl)-isoxazoles Synthesis, 1984 (3). pp. 247-429. ISSN 0039-7881

Rahman, A. ; Ila, H. ; Junjappa, H. (1984) Reactions of polarized ketoketene S,N-acetals with thionyl chloride: a novel general route to 1-aroyl-(or -acyl)-2-aryl-(or -ethoxycarbonyl)-4-alkylthiothiazoles by direct heterocyclization Synthesis, 1984 (3). pp. 250-252. ISSN 0039-7881

Singh, L. W. ; Gupta, A. K. ; Ila, H. ; Junjappa, H. (1984) A facile synthesis of 2-amino-4-alkoxy-6-styryl- and 2-amino-4-alkoxy-6-(4-aryl-1,3-butadienyl)-pyrimidines by direct cyclocondensation Synthesis, 1984 (6). pp. 516-518. ISSN 0039-7881

Myrboh, B. ; Asokan, C. V. ; Ila, H. ; Junjappa, H. (1984) A novel, general method for the synthesis of 2-methyl-substituted and 2-unsubstituted methyl 5-aryl-2,4-pentadienoates Synthesis, 1984 (1). pp. 50-51. ISSN 0039-7881

Vishwakarma, Jai N. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1983) Keten dithioacetals. Part 22. Reaction of polarised ketoketen dithioacetals with dimethyl acetylenedicarboxylate Journal of the Chemical Society, Perkin Transactions 1 . pp. 1099-1102. ISSN 0300-922X

Myrboh, Bekington ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1983) Polarized ketene dithioacetals. 28. A new general highly stereoselective and regiospecific method for homologation of ketones to α,β-unsaturated esters via α-oxoketene dithioacetals Journal of Organic Chemistry, 48 (26). pp. 5327-5332. ISSN 0022-3263

Apparao, Satyam ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1983) Polarized ketene dithioacetals. Part 26. Studies on base-catalysed rearrangements of 3,3-bis(alkylthio)-2-methyl-1-arylprop-2-en-1-ones and 3,3-bis(methylthio)-2-benzyl-1-phenylprop-2-en-1-one Journal of the Chemical Society, Perkin Transactions 1 . pp. 2837-2844. ISSN 0300-922X

Aggarwal, Veena ; Ila, H. ; Junjappa, H. (1983) Reaction of polarised α-ketoketene N,N-acetals with dimethyl acetylenedicarboxylate: synthesis of novel 5-aroyl-1-aryl-6-arylamino-4-methoxycarbonyl-2-oxo-1,2-dihydropyridines Synthesis, 1983 (2). pp. 147-149. ISSN 0039-7881

Bhattacharjee, S. S. ; Ila, H. ; Junjappa, H. (1983) Rearrangement studies on S-propargyl-N-azacycloalkyl acetals: synthesis of novel 3-aroyl-2-(N-azacycloalkyl)-4-methylthiophenes Synthesis, 1983 (5). pp. 410-411. ISSN 0039-7881

Apparao, S. ; Rahman, A. ; Ila, H. ; Junjappa, H. (1982) Base catalysed rearrangement of 2-methyl-3,3-bisalkylthioacrylophenones to 2-alkylthiomethyl-3-alkylthioacrylophenones via mobile keto allyl intermediates Tetrahedron Letters, 23 (9). pp. 971-974. ISSN 0040-4039

Bhattacharjee, S. S. ; Ila, H. ; Junjappa, H. (1982) Cyanotrimethylammonium methylid, formation and reaction with α,β-unsaturated carbonyl compounds: novel cyclopropanation with an ammonium ylid Synthesis, 1982 (4). pp. 301-303. ISSN 0039-7881

Myrboh, B. ; Ila, H. ; Junjappa, H. (1982) Lead(IV) acetate oxidations of 3-substituted and 3,4-disubstituted 2-pyrazoline-5-ones: a facile synthesis of 2-alkynoic and 2,3-alkadienoic (allenic) esters Synthesis, 1982 (12). pp. 1100-1102. ISSN 0039-7881

Myrboh, B. ; Singh, L. W. ; Ila, H. ; Junjappa, H. (1982) Partial reductive demethylthiolation of a-ketoketene S,S-acetals with sodium borohydride/nickel chloride: a new, general method for 2-methylthio-1-alkenyl ketones Synthesis, 1982 (4). pp. 307-309. ISSN 0039-7881

Apparao, S. ; Rahman, A. ; Ila, H. ; Junjappa, H. (1982) Reaction of 2-alkylthiomethyl-3-alkylthioacrylophenones with hydrazine, guanidine, and amines: synthesis of novel pyrazoles, pyrimidines, and enaminoketones Synthesis, 1982 (9). pp. 792-795. ISSN 0039-7881

Aggarwal, V. ; Singh, G. ; Ila, H. ; Junjappa, H. (1982) Reaction of α-ketoketene S,N-acetals with cyanoacetamide: a new general method for substituted and fused 4-(N-alkylamino-, N-arylamino-, or N-morpholino)-3-cyano-2(1H)-pyridones Synthesis, 1982 (3). pp. 214-216. ISSN 0039-7881

Aggarwal, V. ; Ila, H. ; Junjappa, H. (1982) Reactions of polarized ketene S,N- and N,N-acetals with benzoyl isothiocyanate: synthesis of novel 1-n-aryl(alkyl)-2-phenyl-5- aroyl-6-methylthio(n-alkylamino)-4-thioxopyrimidines Synthesis, 1982 (1). pp. 65-68. ISSN 0039-7881

Singh, G. ; Bhattacharjee, S. S. ; Ila, H. ; Junjappa, H. (1982) A facile one-step synthesis of methyl β-oxodithiocarboxylates Synthesis, 1982 (8). pp. 693-694. ISSN 0039-7881

Bhattacharjee, S. S. ; Asokan, C. V. ; Ila, H. ; Junjappa, H. (1982) A facile, one-step synthesis of 3-alkyl- or 3-aryl-4-methyl-2-(substituted-methylene)-2,3-dihydro-1,3-thiazoles Synthesis, 1982 (12). pp. 1062-1064. ISSN 0039-7881

Myrboh, B. ; Ila, H. ; Junjappa, H. (1981) One-step synthesis of methyl arylacetates from acetophenones using lead(IV) acetate Synthesis, 1981 (2). pp. 126-127. ISSN 0039-7881

Aggarwal, V. ; Kumar, A. ; Ila, H. ; Junjappa, H. (1981) Polarized ketene N,N- and S,N-acetals as novel enamine components for the Nenitzescu indole synthesis Synthesis, 1981 (2). pp. 157-158. ISSN 0039-7881

Rao, S. Appa ; Kumar, A. ; Ila, H. ; Junjappa, H. (1981) Reaction of aromatic amines with α-chloroacrylonitrile: a convenient, two-step synthesis of N aryl-2-cyanoaziridines using a phase-transfer catalyst Synthesis, 1981 (8). pp. 623-625. ISSN 0039-7881

Apparao, S. ; Ila, H. ; Junjappa, H. (1981) A new, general synthesis of 1-substituted 2-amino-4-aroyl-5-methylthiopyrroles using α-ketoketene S,S-acetals Synthesis, 1981 (1). pp. 65-66. ISSN 0039-7881

Kumar, A. ; Aggarwal, V. ; Ila, H. ; Junjappa, H. (1980) A novel and convenient synthesis of 2-amino-4-(N-alkyl-N-arylamino)-pyrimidines using polarized ketene S,S- and S,N-acetals Synthesis, 1980 (9). pp. 748-751. ISSN 0039-7881

Rastogi, R. R. ; Kumar, A. ; Ila, H. ; Junjappa, H. (1978) Keten SS-acetals. Part 10. Reaction of α-oxoketen SS-acetals with N-alkylcyanoacetamides: a new general method for substituted and fused 2,7-dialkyl-8-amino-5-cyano-2,7-naphthyridine-1,6(2H,7H)-diones Journal of the Chemical Society, Perkin Transactions 1 . pp. 554-558. ISSN 0300-922X

Rastogi, R. R. ; Kumar, A. ; Ila, H. ; Junjappa, H. (1978) Keten SS-acetals. Part 9. Reaction of α-oxo- and α-cyano-keten SS-acetals with cyanoacetamide: a new general method for substituted and fused 4-alkylthio-3-cyano-2(1H)-pyridones and formation of novel pyridones through base-induced rearrangements Journal of the Chemical Society, Perkin Transactions 1 (6). pp. 549-553. ISSN 0300-922X

Kumar, Arvind ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1978) Keten dithioacetals. Part 11. Reaction of 3-cyano-4-methylthio-2(1H)-pyridones with hydrazine and guanidine: synthesis of novel substituted and fused pyrazolo[4,3-c]pyridone and pyrido[4,3-d]pyrimidine derivatives Journal of the Chemical Society, Perkin Transactions 1 . pp. 857-862. ISSN 0300-922X

Kumar, Arvind ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1976) General method for the synthesis of 2-methylthio-3-substituted pyrroles using keten dithioacetals Journal of the Chemical Society - Series Chemical Communications (15). pp. 593-594. ISSN 0022-4936

Kumar, Arvind ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar ; Mhatre, Sushila (1976) Reaction of keten dithio-acetals with aziridine. Iodide ion-catalysed rearrangement of thio-aziridino-methylene compounds to novel Δ1-2-methylthio-3,3-disubstituted pyrrolines Journal of the Chemical Society - Series Chemical Communications (15). pp. 592-593. ISSN 0022-4936

Rastogi, Roopa R. ; Ila, Hiriyakkanavar ; Junjappa, Hiriyakkanavar (1975) A novel method for the synthesis of substituted and fused 3-cyano-4-methylmercapto-2(1H)-pyridones using a-oxoketen S,S-diacetals Journal of the Chemical Society - Series Chemical Communications (15). p. 645. ISSN 0022-4936

This list was generated on Thu Jul 25 01:21:03 2024 UTC.