✦ LIBER ✦

Synthesis of N-α-styrylcyclopropane-5-phenylamino-1,2,4-triazoles and their conversion to γ-butyrolactones

✍ Scribed by Kee-Jung Lee; Dong-Wook Kim

Publisher: Journal of Heterocyclic Chemistry
Year: 1997
Tongue: English
Weight: 325 KB
Volume: 34
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570340435

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✦ Synopsis

Abstract

The reaction of cyclopropyl phenyl ketone 1‐ureidoethylidenehydrazones 14 with a mixture of tri‐phenylphosphine, carbon tetrachloride, and triethylamine provides a general route to N‐α‐styrylcyclo‐propane‐5‐phenylamino‐1,2,4‐triazoles 17 via the thermal reaction of the expected azinocarbodiimide intermediates 15, and the oxidation of 17 with 3‐chloroperoxybenzoic acid affords 1,2,4‐triazole substituted y‐butyrolactones 23 directly.

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