Items where Author is "Chowdhury, Sushobhan"

Koley, Suvajit ; Chanda, Tanmoy ; Ramulu, B. Janaki ; Chowdhury, Sushobhan ; Singh, Maya Shankar (2016) Acid-Controlled Chemodivergent Synthesis of Three Differently Substituted Quinolines via Site Selective Coupling of ortho- Aminoaryl Ketones with α-Enolic Dithioesters Advanced Synthesis & Catalysis, 358 (8). pp. 1195-1201. ISSN 1615-4150

Singh, Maya Shankar ; Chowdhury, Sushobhan ; Koley, Suvajit (2016) Progress in 1,3-dipolar cycloadditions in the recent decade: an update to strategic development towards the arsenal of organic synthesis Tetrahedron, 72 (13). pp. 1603-1644. ISSN 0040-4020

Ramulu, B. Janaki ; Nagaraju, Anugula ; Chowdhury, Sushobhan ; Koley, Suvajit ; Singh, Maya Shankar (2015) Copper-catalyzed site-selective S–S and C–C homocoupling of α-enolic dithioesters: straightforward and efficient access to 1,2-dithiols Tetrahedron Letters, 56 (20). pp. 2593-2596. ISSN 0040-4039

Anand, Namrata ; Chanda, Tanmoy ; Koley, Suvajit ; Chowdhury, Sushobhan ; Singh, Maya Shankar (2015) CuSO4–d-glucose, an inexpensive and eco-efficient catalytic system: direct access to diverse quinolines through modified Friedländer approach involving SNAr/reduction/annulation cascade in one pot RSC Advances, 5 (10). pp. 7654-7660. ISSN 2046-2069

Chowdhury, Sushobhan ; Koley, Suvajit ; Chanda, Tanmoy ; Singh, Maya Shankar (2015) In/I2 mediated functional group transformation: a direct approach toward the selective conversion of dithioester to ester Tetrahedron Letters, 56 (41). pp. 5553-5556. ISSN 0040-4039

Koley, Suvajit ; Chowdhury, Sushobhan ; Chanda, Tanmoy ; Janaki Ramulu, B. ; Samai, Subhasis ; Motisa, Lerato ; Singh, Maya Shankar (2015) Lewis acid mediated three-component one-flask regioselective synthesis of densely functionalized 4-amino-1,2-dihydropyridines via cascade Knoevenagel/Michael/cyclization sequence Tetrahedron, 71 (2). pp. 301-307. ISSN 0040-4020

Ramulu, B. Janaki ; Nagaraju, Anugula ; Chowdhury, Sushobhan ; Koley, Suvajit ; Singh, Maya Shankar (2015) Metal-Free Reagent Dependent SS and CC Homocoupling of α-Enolic Dithioesters at Room Temperature: Direct Access to Fully Substituted Symmetrical Thiophenes via Chemoselective Paal-Knorr Approach Advanced Synthesis & Catalysis, 357 (2-3). pp. 530-538. ISSN 1615-4150

Chowdhury, Sushobhan ; Chanda, Tanmoy ; Koley, Suvajit ; Ramulu, B. Janaki ; Jones, Raymond C.F. ; Singh, Maya Shankar (2015) Organoindium mediated Csp3–S cross-coupling/migratory allenylation/thioannulation cascade: expedient synthesis of highly substituted thiophene frameworks Tetrahedron, 71 (12). pp. 1844-1850. ISSN 0040-4020

Chanda, Tanmoy ; Chowdhury, Sushobhan ; Anand, Namrata ; Koley, Suvajit ; Gupta, Ashutosh ; Singh, Maya Shankar (2015) Synthesis of 3-hydroxyindanones via potassium salt of amino acid catalyzed regioselective intramolecular aldolization of ortho-diacylbenzenes Tetrahedron Letters, 56 (8). pp. 981-985. ISSN 0040-4039

Chanda, Tanmoy ; Chowdhury, Sushobhan ; Koley, Suvajit ; Anand, Namrata ; Singh, Maya Shankar (2015) Thionyl chloride mediated dehydroxylation of 3-hydroxyindanones to indenones Tetrahedron Letters, 56 (31). pp. 4603-4606. ISSN 0040-4039

Chowdhury, Sushobhan ; Chanda, Tanmoy ; Gupta, Ashutosh ; Koley, Suvajit ; Ramulu, B. Janaki ; Jones, Raymond C. F. ; Singh, Maya Shankar (2014) Indium(0)-Mediated C sp 3-S/O Cross-Coupling Approach Towards the Regioselective Alkylation of α-Enolic Esters/Dithioesters: A Mechanistic Insight European Journal of Organic Chemistry, 2014 (14). pp. 2964-2971. ISSN 1434-193X

Koley, Suvajit ; Chowdhury, Sushobhan ; Chanda, Tanmoy ; Ramulu, B. Janaki ; Nandi, Ganesh Chandra ; Singh, Maya Shankar (2014) Iron-Promoted Domino Annulation of α-Enolic Dithioesters with Ninhydrin under Solvent-Free Conditions: Chemoselective Direct Access to Indeno[1,2-b]thiophenes European Journal of Organic Chemistry, 2014 (25). pp. 5501-5508. ISSN 1434-193X

Chanda, Tanmoy ; Chowdhury, Sushobhan ; Koley, Suvajit ; Anand, Namrata ; Singh, Maya Shankar (2014) Lewis acid promoted construction of chromen-4-one and isoflavone scaffolds via regio- and chemoselective domino Friedel–Crafts acylation/Allan–Robinson reaction Organic and Biomolecular Chemistry, 12 (45). pp. 9216-9222. ISSN 1477-0520

Koley, Suvajit ; Chowdhury, Sushobhan ; Chanda, Tanmoy ; Ramulu, B. Janaki ; Anand, Namrata ; Singh, Maya Shankar (2014) Ligand- and Base-Free CuII-Mediated SelectiveS-Arylation of α-Enolic Dithioesters by Chan-Lam Coupling at Room Temperature European Journal of Organic Chemistry, 2015 (2). pp. 409-416. ISSN 1434-193X

Chowdhury, Sushobhan ; Chanda, Tanmoy ; Koley, Suvajit ; Anand, Namrata ; Singh, Maya Shankar (2014) Regioselective Synthesis of Dihydrothiophene and Thiopyran Frameworks via Catalyst-Controlled Intramolecular Cγ/Cδ–S Fusion of α-Allyl-β′-oxodithioesters Organic Letters, 16 (21). pp. 5536-5539. ISSN 1523-7060

Chowdhury, Sushobhan ; Chanda, Tanmoy ; Koley, Suvajit ; Ramulu, B. Janaki ; Raghuvanshi, Keshav ; Singh, Maya Shankar (2014) Regioselective dehydrative intramolecular heteroannulation of β-allyl-β-hydroxy dithioesters: facile and straightforward entry to 2H-thiopyrans Tetrahedron, 70 (4). pp. 914-918. ISSN 0040-4020

Chanda, Tanmoy ; Chowdhury, Sushobhan ; Ramulu, B. Janaki ; Koley, Suvajit ; Jones, Raymond C.F. ; Singh, Maya Shankar (2014) Regioselective quadruple domino aldolization/aldol condensation/Michael/SNAr-cyclization: construction of hexacyclic indeno-fused C-nor-D-homo-steroid frameworks Tetrahedron, 70 (12). pp. 2190-2194. ISSN 0040-4020

Singh, Maya Shankar ; Nagaraju, Anugula ; Anand, Namrata ; Chowdhury, Sushobhan (2014) ortho-Quinone methide (o-QM): a highly reactive, ephemeral and versatile intermediate in organic synthesis RSC Advances, 4 (99). pp. 55924-55959. ISSN 2046-2069

Koley, Suvajit ; Chowdhury, Sushobhan ; Chanda, Tanmoy ; Ramulu, B. Janaki ; Singh, Maya Shankar (2013) Diversity oriented catalyst-free and solvent-free one-pot MCR at room temperature: rapid and regioselective convergent approach to highly functionalized dihydro-4H-thiopyrans Tetrahedron, 69 (37). pp. 8013-8018. ISSN 0040-4020

Ramulu, B. Janaki ; Chanda, Tanmoy ; Chowdhury, Sushobhan ; Nandi, Ganesh C. ; Singh, Maya Shankar (2013) Organocatalyzed straightforward synthesis of highly fluorescent 3,5-disubstituted 2,6-dicyanoanilines via domino annulation of α-enolicdithioesters with malononitrile RSC Advances, 3 (16). p. 5345. ISSN 2046-2069

Chowdhury, Sushobhan ; Chanda, Tanmoy ; Koley, Suvajit ; Ramulu, B. Janaki ; Jones, Raymond C. F. ; Singh, Maya Shankar (2013) Palladium Catalyzed Oxidative Coupling of α-Enolic Dithioesters: A New Entry to 3,4,5-Trisubstituted 1,2-Dithioles via a Double Activation Strategy Organic Letters, 15 (20). pp. 5386-5389. ISSN 1523-7060

Chowdhury, Sushobhan ; Chanda, Tanmoy ; Nandi, Ganesh Chandra ; Koley, Suvajit ; Janaki Ramulu, B. ; Pandey, S.K. ; Singh, Maya Shankar (2013) Y(OTf)3 catalyzed substitution dependent oxidative C(sp3)–C(sp3) cleavage and regioselective dehydration of β-allyl-β-hydroxydithioesters: alternate route to α,β-unsaturated ketones and functionalized dienes Tetrahedron, 69 (42). pp. 8899-8903. ISSN 0040-4020

Singh, Maya Shankar ; Chowdhury, Sushobhan (2012) Recent developments in solvent-free multicomponent reactions: a perfect synergy for eco-compatible organic synthesis RSC Advances, 2 (11). p. 4547. ISSN 2046-2069

Chowdhury, Sushobhan ; Nandi, Ganesh Chandra ; Samai, Subhasis ; Singh, Maya Shankar (2011) Regioselective Synthesis of Tetrahydrothiochromen-5-ones via a One-Pot Three-Component Solvent-Free Domino Protocol Organic Letters, 13 (14). pp. 3762-3765. ISSN 1523-7060

Samai, Subhasis ; Chandra Nandi, Ganesh ; Chowdhury, Sushobhan ; Singh, Maya Shankar (2011) l-Proline catalyzed synthesis of densely functionalized pyrido[2,3-d]pyrimidines via three-component one-pot domino Knoevenagel aza-Diels–Alder reaction Tetrahedron, 67 (33). pp. 5935-5941. ISSN 0040-4020