Improved synthesis of 2,3:4,6-di-O-isopropylidene-D-glucopyranose and -D-galactopyranose

被引：15

作者：

Gómez, AM ^{[1
]}

Danelón, GO ^{[1
]}

Valverde, S ^{[1
]}

López, JC ^{[1
]}

机构：

[1] CSIC, Inst Quim Organ Gen, E-28006 Madrid, Spain

来源：

CARBOHYDRATE RESEARCH | 1999年 / 320卷 / 1-2期

关键词：

2,3 : 4,6-Di-O-isopropylidene-D-glucopyranose 2,3 : 4,6-Di-O-isopropylidene-D-galactopyranose; benzyl glycosides; hydrogenolysis; carbohydrate acetals;

D O I：

10.1016/S0008-6215(99)00150-0

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：

2,3:4,6-Di-O-isopropylidene-D-glucopyranose and -D-galactopyranose acetals are conveniently prepared by hydrogenolysis of benzyl 2,3:4,6-di-O-isopropylidene-beta-D-glucopyranose and -beta-D-galactopyranose in almost quantitative yields in 3 h. This result is in contrast with the sluggish reaction observed (48 h) when the hydrogenolysis was carried out on either anomeric alpha,beta mixtures or on the corresponding a anomers. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：138 / 142

页数：5

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