STEREOCHEMISTRY AND DYNAMIC BEHAVIOR OF SOME SYNTHETIC ANGULAR PROFISETINIDIN TETRAFLAVANOID DERIVATIVES

被引：9

作者：

YOUNG, DA ^{[1
]}

FERREIRA, D ^{[1
]}

ROUX, DG ^{[1
]}

机构：

[1] UNIV ORANGE FREE STATE,DEPT CHEM,POB 339,BLOEMFONTEIN 9300,SOUTH AFRICA

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1986年 / 24卷 / 05期

关键词：

ORGANIC COMPOUNDS - Synthesis;

D O I：

10.1002/pola.1986.080240503

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The structure and stereochemistry of four synthetic 'angular' tetraflavanoid-condensed tannin derivatives are examined by high-resolution variable temperature **1H NMR spectroscopy, and hence correlated with their dynamic behavior. Three 'angular' oligomers exist as stable rotational isomers at ambient temperatures, thus contrasting with the mobility about their interflavanoid bonds of most natural profisetinidin 'trimeric' and 'tetrameric' homologs. A 'linear' tetraflavanoid analog results from one of these regioselectively controlled condensations.

引用

页码：835 / 849

页数：15

共 12 条

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