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An improved synthetic approach to thieno[2,3-d]-1,2,3-thiadiazolecarboxylates via diazotization of aminothiophene derivatives

✍ Scribed by Peter Stanetty; Erwin Görner; Marko D. Mihovilovic

Book ID
102341340
Publisher
Journal of Heterocyclic Chemistry
Year
1999
Tongue
English
Weight
362 KB
Volume
36
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

The common synthetic method for the synthesis of fused 1,2,3‐thiadiazoles via diazotization is not generally applicable to aminothiophenes. A substantially improved experimental protocol for the preparation of the title compounds as a potential inducer of systemic acquired resistance in plants is reported based on a novel cyclization mechanism via a Huisgen‐White type rearrangement.

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