ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Oxidative Rearrangement of Chalcones by Thallium(III) Nitrate, IV. The Synthesis of Dalpatin, Fujikinin, Glycitein and of Other Natural IsoflavonesThe synthesis of 7-hydroxy-2′,6-dimethoxy-4′,5′ -methylenedioxysoflavone-7-O-β-D-glucopyranoside (dalpatin, 1), 7-hydroxy-6-methoxy-3′,4′-methylenedioxyisoflavone (fujikinetin, 4), its 7-O-β-D-glucopyranoside (fujikinin, 6), 4′,7-dihydroxy-6-methoxyisoflavone (glucitein, 35), 6-hydroxy-2′,7-dimethoxy-4′,5′-methylenedioxy-(7) and 5,6,7-trimethoxy-3′,4′-methylenedioxyisoflavone (9), two constituents of Cordyla africana, further of 5,6,7,8-tetramethoxy-3′,4′-methylenedioxyiso-flavone (10) is described. 10 was not identical with an isoflavone from C. africana for which the same structure has been proposed.
Notes:
7-Hydroxy-2′,6-dimethoxy-4′,5′-methylendioxyisoflavon-7-O-β-D-glucopyranosid (Dalpatin, 1), 7-Hydroxy-6-methoxy-3′,4′-methylendioxyisoflavon (Fujikinetin, 4), sein 7-O-β-D-glucopyranosid (Fujikinin, 6), 4′,7-Dihydroxy-6-methoxyisoflavon (Glycitein, 35) und zwei Inhaltsstoffe von Cordyla africana (6-Hydroxy-2′,7-dimethoxy-4′,5′-methylendioxy- (7) und 5,6,7-Trimethoxy-3′,4′-methylendioxyisoflavon (9)), weiterhin 5,6,7,8-Tetramethoxy-3′,4′-methylendioxyisoflavon (10) wurden hergestellt. 10 war mit einem Isoflavon aus C. africana, für das die gleiche Struktur vorgeschlagen worden war, nicht identisch.
Additional Material:
1 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19751081221
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