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Revisiting the Hinsberg Reaction: Facile and Expeditious Synthesis of 3-Substituted Quinoxalin-2(1H)-ones under Catalyst-Free Conditions in Water

✍ Scribed by Sabbavarapu Narayana Murthy; Bandaru Madhav; Yadavalli Venkata Durga Nageswar

Publisher: John Wiley and Sons
Year: 2010
Tongue: German
Weight: 162 KB
Volume: 93
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.200900358

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✦ Synopsis

Abstract

Substituted benzene‐1,2‐diamine reacted with various α‐keto esters at 50° under mild conditions for 15 min using H~2~O as reaction medium, providing a variety of 3‐substituted quinoxalinone derivatives in excellent yields. The reaction was instantaneous, and products were isolated by simple filtration.

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