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Synthesis of a new class of spiro heterocycles

✍ Scribed by Venkatapuram Padmavathi; Kaveti Sudheer; Dandu Rangayapalle Chinna Venkata Subbaiah; Konda Mahesh

Publisher: Journal of Heterocyclic Chemistry
Year: 2008
Tongue: English
Weight: 346 KB
Volume: 45
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570450233

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✦ Synopsis

Abstract

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A new class of spiro heterocycles viz., spiropyrazolidinediones, isoxazolidinediones, pyrimidinetriones or thioxopyrimidinediones are developed from methyl 3‐aryl‐2‐(Z‐arylethenenylsulfonyl)acrylate by double Michael addition reaction with dimethyl malonate followed by cyclocondensation with appropriate nucleophiles.

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