STRUCTURES OF 2 PROANTHOCYANIDINS FROM JULBERNADIA GLOBIFLORA

被引：26

作者：

PELTER, A

AMENECHI, PI

WARREN, R

HARPER, SH

机构：

[1] Department of Chemistry, University of Manchester, Manchester

来源：

JOURNAL OF THE CHEMICAL SOCIETY C-ORGANIC | 1969年 / 18期

关键词：

D O I：

10.1039/j39690002572

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

By use of counter-current and steady state distribution techniques two biflavanoid proanthocyanidins have been isolated from J. globiflora. The compounds are stereoisomers, the structures being based on analysis of the 1H n.m.r. and mass spectra. Definition of the point of attachment to the second flavanoid unit was made by the use of solvent-induced methoxy-shifts. From the mass spectra it is possible to distinguish between rings B and E of the 4,6″-linked biflavanoids.

引用

页码：2572 / &

共 24 条

[1] AN ANALYSIS OF CHEMICAL SHIFT POSITIONS OF AROMATIC PROTONS OF PHENOLIC COMPOUNDS AS A GUIDE TO ORIENTATION [J].