Dalbergia species—VI: The occurrence of melannein in the genus Dalbergia

BJ Donnelly, DMX Donnelly, AM O'Sullivan

Index: Donnelly,B.J. et al. Tetrahedron, 1968 , vol. 24, p. 2617 - 2622

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Citation Number: 80

Abstract

Extraction of Dalbergia baroni Baker heartwood gave a new 4-phenylcoumarin, melannein (Ia) in addition to the known dalbergin (II), S-4-methoxydalbergione (III) and formononetin (IV). The constitution of melannein is established. Syntheses of O-dimethylmelannein and O- diethylmelannein are described.