Items where Author is "Liu, R. S. H."

Article

Ramamurthy, V. ; Denny, M. ; Liu, R. S. H. (1981) Photoisomerization of the C₁₅-aldehyde and the C₁₈-ketone in the vitamin a series. Solvent effect on photoisomerization of compounds related to retinal Tetrahedron Letters, 22 (26). pp. 2463-2466. ISSN 0040-4039

Ramamurthy, V. ; Liu, R. S. H. (1979) Spectroscopic properties of molecules related to hindered isomers of retinal Journal of Chemical Sciences, 88 (4). pp. 239-247. ISSN 0253-4134

De grip, W. J. ; Liu, R. S. H. ; Ramamurthy, V. ; Asato, A. (1976) Rhodopsin analogues from highly hindered 7-cis isomers of retinal Nature, 262 . pp. 416-418. ISSN 0028-0836

Ramamurthy, V. ; Liu, R. S. H. (1976) Sigmatropic hydrogen migration and electrocyclization processes in compounds in the vitamin A series.Photochemistry of polyenes. X Journal of Organic Chemistry, 41 (10). pp. 1862-1867. ISSN 0022-3263

Ramamurthy, V. ; Liu, R. S. H. (1975) Geometric isomers of 11,12-dehydro-15-demethyl-β-axerophtene. New geometric isomers of vitamin A and carotenoids III Journal of Organic Chemistry, 40 (23). pp. 3460-3462. ISSN 0022-3263

Ramamurthy, V. ; Liu, R. S. H. (1975) 7-Cis isomers of retinal via 7-cis- and 7,9-dicis-β-C₁₈-tetraene ketones: new geometric isomers of vitamin A and carotenoids - I Tetrahedron, 31 (3). pp. 201-206. ISSN 0040-4020

Ramamurthy, V. ; Tustin, G. ; Yau, C. C. ; Liu, R. S. H. (1975) Preparation of sterically hindered geometric isomers of 7-cis-β-ionyl and β-ionylidene derivatives in the vitamin A series Tetrahedron, 31 (3). pp. 193-199. ISSN 0040-4020

Ramamurthy, V. ; Liu, R. S. H. (1974) Photochemical and thermal internal cycloadditions in retro-γ-ionylidenemalononitrile Journal of Organic Chemistry, 39 (23). pp. 3435-3436. ISSN 0022-3263

Ramamurthy, V. ; Liu, R. S. H. (1974) Preferred directions of photoisomerization of ionylideneacetaldehyde and the C₁₈-tetraene ketone in the retinal series. Synthesis of the hindered 7-cis isomers Journal of the American Chemical Society, 96 (17). pp. 5625-5627. ISSN 0002-7863

Ramamurthy, V. ; Butt, Y. ; Yang, C. ; Yang, P. ; Liu, R. S. H. (1973) Photochemistry of polyenes. III. Preparation of 7-cis-ionyl and ionylidene derivatives and other sterically hindered olefins by one-way sensitized geometric isomerization Journal of Organic Chemistry, 38 (6). pp. 1247-1249. ISSN 0022-3263

Ramamurthy, V. ; Liu, R. S. H. (1973) Protochemistry of β-ionylideneacetonitrile and related compounds: direct conversion of a cyclohexadiene to trans-hexatriene Tetrahedron Letters, 14 (16). pp. 1393-1396. ISSN 0040-4039

Ramamurthy, V. ; Bopp, T. T. ; Liu, R. S. H. (1972) NMR studies of 7-cis-β-ionol and related compounds. Ring-chain conformational preference Tetrahedron Letters, 13 (37). pp. 3915-3916. ISSN 0040-4039