A New Approach to the Synthesis of Isoflavones, 2'-Hydroxyisoflavones and an Alternative Synthesis of (±)-Pteroicarpin

1 January 1967

journal article
Published by Oxford University Press (OUP) in Agricultural and Biological Chemistry

Vol. 31 (12) , 1490-1498
https://doi.org/10.1271/bbb1961.31.1490

Abstract

A new approach to the synthesis of isoflavones and 2'-hydroxyisoflavones, useful inter-mediates for synthesis of pterocarpinoids, are described. The 2'-hydroxyisoflavone (VIII; R=CH₃, R'=H) synthesized by this method, was converted into (±)-pterocarpin (VII; R=CH₃, R'=H). Attempts to obtain the corresponding isoflavane or isoflavene from the coumarine (XVII) failed.

Keywords

ISOFLAVONES
ISOFLAVENE
ATTEMPTS
NEW APPROACH
CORRESPONDING
CONVERTED
VII
HYDROXYISOFLAVONE
PTEROICARPIN
ISOFLAVANE

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