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Osage orange pigments—XVII. by M.L. Wolfrom; H.B. Bhat is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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Akt1~t-1,3,6,7-Tetr&droxyxanthone has been isolated from the hc&wcod OfthcOMI8earangc(Maehvrr pom$wa Rflf.). The oawraa#inthiswoodofmorinandof2,3',45 Two I8opLAyoNB pigments, osajin (II) pomiferin (IV), have been isolated from the fruit of the osage orange (Mackua pomz$ru Raf.) and their structures determined.\* The structures were con6rmed by the synthesis' of dihydroiso-osajin and dihydroisopomiferin. Three new xanthone pigments were later isolated4 from the highly pigmented root bark of this tree and were designated alvaxanthone, macluraxanthone, and osajaxanthone. Structures (III, V, and I, respectively) were assigned to these pigments le % 6 and dihydro-osajaxanthone monomethyl ether was synthesized.6 The heartwood of this tree is yellow and from this source Barnes and Gerber' isolated the yellow pigments morin (2',4',5,7&trahydroxyflavonol, VI) and 2,3',4,5'tetrahydroxystilbene (VIII). We have also investigated this heartwood and, employing a considerably improved and simplified procedure, we have con6rmed the presence therein of these two substances. The amount of the flavonol found was 0.05 per cent and that of the stilbene was 0.0s per cent of the heartwood. In addition a

Who reads Osage orange pigments—XVII.?

Author

M.L. Wolfrom; H.B. Bhat

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0031-9422)

Published

1965

Language

SR

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)