Abstract
1-Thiocarbamoylthiosemicarbazide, the synthetic equivalent of thiourea and thiosemicarbazide, reacts with phenylchoropyruvic 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.
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A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Kazan 420088; Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1554–1560, November, 1999.
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Mamedov, V.A., Nurkhametova, I.Z., Gubaidullin, A.T. et al. Competition of the Hantzsch and boese reactions in the interaction of 1-thiocarbamoylthiosemicarbazide and phenylchloropyruvic acid methyl ester. Chem Heterocycl Compd 35, 1357–1363 (1999). https://doi.org/10.1007/BF02252009
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DOI: https://doi.org/10.1007/BF02252009