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Room temperature facile synthesis of quinoxalines catalyzed by amidosulfonic acid

✍ Scribed by Zhenjiang Li; Weisi Li; Yingjie Sun; He Huang; Pingkai Ouyang

Publisher: Journal of Heterocyclic Chemistry
Year: 2008
Tongue: English
Weight: 244 KB
Volume: 45
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570450135

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✦ Synopsis

Abstract

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Amidosulfonic acid NH~2~–SO~3~H catalyzed direct condensations of o‐phenylenediamines with α‐diketones at room temperature in organic solvents to afford quinoxalines in excellent yields. The amidosulfonic acid as a solid acid catalyst in this preparation was efficient and recoverable.

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