Synthesis of imidazo- and pyrazolothiadiazoles from dithiobiureas and dimethyl ethynedicarboxylate-Reference-Cited by-同舟云学术

Synthesis of imidazo- and pyrazolothiadiazoles from dithiobiureas and dimethyl ethynedicarboxylate

Published:2009-10 Issue:10 Volume:2009 Page:602-606
ISSN:1747-5198
Container-title:Journal of Chemical Research
language:en
Short-container-title:Journal of Chemical Research

Author:

Ibrahim Yusria R.¹

Affiliation:

1. Chemistry Department, Faculty of Science, Minia University, 61519 Minia, A. R. Egypt

Abstract

Microwave irradiation of 1-substituted-2, 5-dithiobiureas and 1, 6-disubstituted-2, 5-dithiobiureas with dimethyl ethynedicarboxylate gave methyl 2-{6-oxo-2-(substituted amino)imidazo-[2, 1- b][1, 3, 5]thiadiazol-5(6 H)-ylidene} acetate and methyl 7-oxo-1, 3-bis(substituted imino)-3, 7-dihydro-1 H-pyrazolo[1, 2- c][1, 3, 4]thiadiazole-5-carboxylate. Rationales for these transformations are presented.

Publisher

SAGE Publications

Subject

General Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/030823409X12510192920270

Reference38 articles.

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5. Reactivity of Conjugated Enaminothioamides toward Activated Acetylenic Compounds

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