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Synthesis and transformations of 2-amino-1,3,4-thiadiazines

✍ Scribed by S. V. Usol'tseva; G. P. Andronnikova; S. L. Nikolaeva; A. T. Lebedev; V. A. Shevyrin

Publisher: Springer US
Year: 1991
Tongue: English
Weight: 380 KB
Volume: 27
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf00480848

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✦ Synopsis

Depending on the reaction conditions, 2-amino-l,3,4-thiadiazine and 2.hydrazinothiazole derivatives were obtained by cyclization of thiosemicarbazide with ethyl bromopyruvate in concentrated hydrochloric acid. The rearrangements of 5-carbonyl-substituted 2.amino.l,3,4-thiadiazines to thiazole derivatives in an acidic medium were studied.

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