Heterocyclization of compounds containing diazo and cyano groups. 4. Reactions of 2-diazo-2-cyanoacetic acid amides with P4S10 and the lawesson reagent. Synthesis and recyclization of 5-amino-1,2,3-thiadiazole-4-carbothioamides |
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Authors: | V A Bakulev E F Dankova V S Mokrushin E O Sidorov A T Lebedev |
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Institution: | (1) S. M. Kirov Ural Polytechnic Institute, 620002 Sverdlovsk |
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Abstract: | 5-Amino-1,2,3-thiadiazole-4-carbothioamides were obtained in the reaction of carbonyl derivatives of diazoacetonitrile with P4S10 and the Lawesson reagent. A novel recyclization of 1,2,3-thiadiazole-4-carbothioamides was observed.See 1] for Communication 3.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 845–849, June, 1987. |
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