X-RAY AND NMR-STUDIES ON THE ROTATIONAL-ISOMERISM ABOUT THE C(5)-C(6) BOND OF 6-SUBSTITUTED METHYL 2,3,4,-TRI-O-ACETYL-6-X-ALPHA-D-GLUCOPYRANOSIDE DERIVATIVES

被引：1

作者：

MENTZAFOS, D

POLISSIOU, M

GRAPSAS, I

HOUNTAS, K

GEORGIADIS, M

TERZIS, A

机构：

[1] AGR UNIV ATHENS,PHYS LAB,GR-11855 ATHENS,GREECE

[2] AGR UNIV ATHENS,CHEM LAB,GR-11855 ATHENS,GREECE

[3] NCPS DEMOCRITOS,INST MAT SCI,GR-15310 ATHENS,GREECE

来源：

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY | 1995年 / 25卷 / 04期

关键词：

DERIVATIVES; ROTAMERS; H-1-NMR; X-RAY; STRUCTURE; 2,3,4,TRI-O-ACETYL-6-X-ALPHA-D-GLUCOPYRANOSIDES;

D O I：

10.1007/BF01666100

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The rotamers about the C(5)-C(6) bond of a series of 2,3,4-tri-O-acetyl-6-X-alpha-D-glucopyranozide derivatives resulting by substitution at C(6) or O(6) have been studied with H-1-NMR spectroscopy (400 MHz) and X-ray structure analysis. The methyl 2,3,4-tri-O-acetyl-6-O-triphenyl-methyl-alpha-D-glucopyranoside and the N-(1-O-methyl-2,3,4-tri-O-acetyl-alpha-D-glucopyranose-6-yl)- pyridinium nitrate crystallize in the P2(1) space group with a = 14.940(1), b = 11.232(1), c = 9.0773(7), and beta = 94.480(7) and a = 7.670(1), b = 15.384(3), c = 9.624(1) and beta = 104.90(1), respectively; the methyl 2,3,4-tri-O-acetyl-6-O-nitro-alpha-D-glucopyranoside and methyl 2,3,4-tri-O-acetyl-6-O-deoxy-6-iodo-alpha-D-glucopyrano-side crystallize in the P2(1)2(1)2(1) space group with a = 5.630(1), b = 14.360(1) and c = 22.388(3), and a = 5.556(1), b = 14.303(6) and c = 21.963(6), respectively.

引用

页码：157 / 164

页数：8

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