COMPETITION OF THE HANTZSCH AND BOESE REACTIONS IN THE INTERACTION OF 1-THIOCARBAMOYLTHIOSEMICARBAZIDE AND PHENYLCHLOROPYRUVIC ACID METHYL ESTER
DOI:
https://doi.org/10.1007/1079Abstract
1-Thiocarbamoylthiosemicarbazide, the synthetic equivalent of thiourea and thiosemicarbazide, reacts with phenylchloropyruvic acid methyl ester exclusively as thiourea (Hantzsch reaction) forming 2-hydrazo-4-methoxycarbonyl-5-phenylthiazole. Diacetylation and reductive fission of this hydrazo compound was carried out, and also oxidation to the corresponding azo compound, readily accomplished with using dimethyl sulfoxide.
Authors: V. A. Mamedov, I. Z. Nurkhametova, A. T. Gubaidullin, I. A. Litvinov, and Ya. A. Levin.
English Translation in Chemistry of Heterocyclic Compounds, 1999, 35 (11), pp 1357-1363