H-1-NMR CHEMICAL-SHIFT VALUE OF THE ISOFLAVONE 5-HYDROXYL PROTON AS A CONVENIENT INDICATOR OF 6-SUBSTITUTION OR 2'-HYDROXYLATION

被引：30

作者：

TAHARA, S ^{[1
]}

INGHAM, JL ^{[1
]}

HANAWA, F ^{[1
]}

MIZUTANI, J ^{[1
]}

机构：

[1] UNIV READING, DEPT FOOD SCI, READING RG6 2AP, ENGLAND

来源：

PHYTOCHEMISTRY | 1991年 / 30卷 / 05期

关键词：

ISOFLAVONES; H-1 NMR CHEMICAL SHIFTS; STRUCTURE ELUCIDATION; 5-HYDROXYLATION; 2'-HYDROXYLATION; 6-METHOXYLATION; 6-/8-PRENYLATION;

D O I：

10.1016/0031-9422(91)84234-J

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

H-1 NMR examination of a range of simple and complex isoflavones has shown that the presence or absence of a 2'-hydroxyl group can be deduced from the chemical shift value of the 5-hydroxyl proton determined in acetone-d6. The data can also be used to establish if a methoxyl group or an alkyl side structure is present at C-6, and distinguishes between prenylation at C-6 and C-8. The application of this H-1 NMR technique to the identification of Piscidia-derived isoflavones is discussed.

引用

页码：1683 / 1689

页数：7

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