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Synthesis of [1,2,4]triazolo[3,4-b][1,3]thiazine-5-carboxylates via one-pot reaction of N-substituted-hydrazino-carbothioamides with diethyl maleate

✍ Scribed by Ashraf A. Aly; Alaa A. Hassan; Yusria R. Ibrahim; Mohamed Abdel-Aziz

Publisher
Journal of Heterocyclic Chemistry
Year
2009
Tongue
English
Weight
220 KB
Volume
46
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

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Diethyl maleate reacts with N‐substituted‐hydrazino‐carbothioamides to form ethyl [1,2,4]triazolo[3,4‐b][1,3]thiazine‐5‐carboxylates. Reaction proceeds via bicyclization and oxidation processes. J. Heterocyclic Chem. (2009).

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