Y. Shyamsunder Rao | Researchain

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Journal of The Chemical Society, Chemical Communications | 1976

trans- to cis-Isomerisation of cinnamic acids and related carbonyl compounds

Y. Shyamsunder Rao; Robert Filler

Polyphosphoric acid converts trans-cinnamic acid and trans-benzylidenacetophenone into their cis-isomers and trans,trans-5-phenylpenta-2,4-dienoic acid into the trans,trans-isomer.

Journal of The Chemical Society D: Chemical Communications | 1970

A new synthesis of a little known heterocyclic system: 4(5H)-oxazolones

Y. Shyamsunder Rao; Robert Filler

α-Halogeno-imides react with sodium hydride to form 4(5H)-oxazolones, this reaction representing a new general route to this class of compounds.

Synthesis | 1975

Geometric Isomers of 2-Aryl(Aralkyl)-4-arylidene(alkylidene)-5(4H)-oxazolones

Y. Shyamsunder Rao; Robert Filler

Journal of Organic Chemistry | 1970