Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
A New Synthesis of Flavones by the Reaction of 2-Phenyl-2H-1-benzopyrans with Potassium Permanganate
Yoshihiro AshiharaYasuyuki NagataKazu Kurosawa
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1977 Volume 50 Issue 12 Pages 3298-3301

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Abstract

The oxidation often 2-phenyl-2H-1-benzopyrans with potassium permanganate in acetone has been found to give the corresponding flavones in 8–73% yields. The reaction mechanism is discussed on the basis of the substituent effect and the oxidations of related compounds.

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