2-DIMENSIONAL NMR-SPECTRA OF HYDROLYZABLE TANNINS WHICH FORM EQUILIBRIUM MIXTURES

被引：6

作者：

YOSHIDA, T ^{[1
]}

HATANO, T ^{[1
]}

OKUDA, T ^{[1
]}

机构：

[1] OKAYAMA UNIV, FAC PHARMACEUT SCI, OKAYAMA 700, JAPAN

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 1992年 / 30卷

关键词：

TANNIN; ANOMER; HYDROLYZABLE TANNIN; OLIGOMERIC HYDROYSABLE TANNIN; HETERONUCLEAR LONG-RANGE COSY; OENOTHEIN-B; CAMELLIATANNIN-H; CORIARIIN-H; EUPHORBIN-C;

D O I：

10.1002/mrc.1260301311

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structures of hydrolysable tannins, each existing as an equilibrium mixture due to tautomerization at the sugar core(s) or at the dehydrohexahydroxydiphenoyl group (five- and six-membered hemiacetal forms) in the molecule, were elucidated by NMR, employing 2D NMR techniques (COSY, NOESY, H-1-C-13 long-range COSY, etc.), on derivatives which avoid the spectral complication due to equilibration.

引用

页码：S46 / S55

页数：10