STRUCTURE OF INTERMEDIATES IN THE HANTZSCH REACTION OF PHENYLCHLOROPYRUVIC ACID DERIVATIVES WITH N,N'-DIPHENYLTHIOUREA
DOI:
https://doi.org/10.1007/709Abstract
The intermediates in the Hantzsch reaction of the methyl ester and diethylamide of phenylchloropyruvic acid with N,N'-diphenylthiourea are derivatives of 2-phenylimino-3,5-diphenyl-4-hydroxythiazoline-4-carboxylic acid. They exist as an equilibrium mixture of two diastereomers in solution.
Authors: V. A. Mamedov, I. Z. Nurkhametova, R. R. Shagidullin, A. V. Chernova, and Ya. A. Levin.
English Translation in Chemistry of Heterocyclic Compounds, 1999, 35 (7), pp 855-859