X-ray diffraction and high-resolution NMR spectroscopy of methyl 3,4-di-O-acetyl-1,5-anhydro-2-deoxy-D-arabino-hex-1-enopyranuronate

被引：13

作者：

Liberek, Beata

Tuwalska, Dorota

Konitz, Antoni

Sikorski, Artur

机构：

[1] Univ Gdansk, Fac Chem, PL-80952 Gdansk, Poland

[2] Gdansk Univ Technol, Dept Inorgan Chem, PL-80952 Gdansk, Poland

来源：

CARBOHYDRATE RESEARCH | 2007年 / 342卷 / 09期

关键词：

methyl 3,4-di-O-acetyl-D-glucuronal; X-ray diffraction; single crystal; torsion angle; (5)H(4) conformation;

D O I：

10.1016/j.carres.2007.03.004

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：

Single-crystal X-ray diffraction and high-resolution (1)H and (13)C NMR spectral data for methyl 3,4-di-O-acetyl-1,5-anhydro -2-deoxy-D -arabino-hex-1-enopyranuron ate are reported. The 5 H(4) conformation was found to be the preferred form for this glycal, both in the crystal lattice and in solution. The factors determining the (4)H(5) reversible arrow (5)H(4) conformational equilibrium for acetylated glycals are discussed. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1280 / 1284

页数：5

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