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An efficient synthesis of 3-hydroxychromone using niobium pentachloride

✍ Scribed by Mauricio Gomes Constantino; Valdemar Lacerda Júnior; Gil Valdo José Da Silva

Publisher: Journal of Heterocyclic Chemistry
Year: 2003
Tongue: English
Weight: 35 KB
Volume: 40
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570400229

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✦ Synopsis

Abstract

A new and efficient 2‐step synthesis of 3‐hydroxychromone is described. Commercially available chromone is converted to the corresponding epoxide which is rearranged with niobium pentachloride to 3‐hydroxychromone in 61% overall yield.

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