DIFFERENTIATION OF 5-HYDROXY-6,7(7,8)-DIMETHOXYFLAVONES AND 5,6,7(5,6,8)-TRIMETHOXYFLAVONES BY MASS-SPECTROMETRY

被引：34

作者：

GOUDARD, M

FAVREBONVIN, J

STRELISKY, J

NOGRADI, M

CHOPIN, J

机构：

[1] UNIV LYON 1, PHYTOCHIM LAB, F-69621 VILLEURBANNE, FRANCE

[2] TECH UNIV BUDAPEST, INST CHIM ORGAN, H-1521 BUDAPEST, HUNGARY

来源：

PHYTOCHEMISTRY | 1979年 / 18卷 / 01期

关键词：

5,6,7- or 5,7,8-trimethoxyflavones; 5-hydroxy-6,7-or7,8-dimethoxyflavones; MS fragmentation;

D O I：

10.1016/S0031-9422(00)90949-X

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：

The relative abundance of M and M-15 peaks in the mass spectrum allows the differentiation of 5-hydroxy-6,7-dimethoxy- and 5,7,8-trimethoxyflavones (M > M-15) from 5-hydroxy-7,8-dimethoxy and 5,6,7-trimethoxy-flavones (M < M-15) respectively, thus affording a solution to the 5,6,7- or 5,7,8-orientation problem on microscale. © 1979.

引用

页码：186 / 187

页数：2

共 7 条

[1] ELECTRON IMPACT STUDIES .2. MASS SPECTRA OF QUERCETAGETIN DERIVATIVES [J].