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Synthesis and ring transformation of substituted S-(1-phenylpyrrolidine-2-ones-3-yl)isothiuronium salts to substituted 2-imino-5-[2-(phenylamino)ethyl]thiazolidin-4-ones

✍ Scribed by MiloŠ Sedlák; JiŘí Hanusek; Vladimír Macháček; Ludmila Hejtmánková

Book ID: 102339915
Publisher: Journal of Heterocyclic Chemistry
Year: 2002
Tongue: English
Weight: 31 KB
Volume: 39
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570390543

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✦ Synopsis

Abstract

Dedicated to Professor Jaromír Kaválek on the occasion of his 65^th^ birthday

Substituted S‐(1‐phenylpyrrolidin‐2‐on‐3‐yl)isothiuronium salts in weakly basic media undergo intramolecular recyclisation reaction in which the γ‐lactam cycle is split and a thiazolidine cycle is formed. A series of six substituted 2‐imino‐5‐[2‐(phenylamino)ethyl]‐thiazolidin‐4‐ones have been prepared by this reaction.

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