Allyl deprotection of galacturonic acid derivatives: mechanistic aspects of mercuric-catalyzed prop-1-enyl acetal cleavage

被引:8
作者
Barbier, Maximilien [1 ]
Grand, Eric [1 ]
Kovensky, Jose [1 ]
机构
[1] Univ Picardie Jules Verne, CNRS, UMR 6219, Lab Glucides, F-80039 Amiens, France
关键词
allyl deprotection; rhodium complex; mechanism; galacturonic acid;
D O I
10.1016/j.carres.2007.08.019
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
Different deallylation methods were assayed for selective deprotection of allyl galactopyranosiduronic acid derivatives. A two-step procedure using DABCO and (Ph3P)(3)RhCl followed by mercuric-assisted cleavage gave quantitative yields. Reaction in the presence of [O-18]water allowed us to obtain evidence about the mechanism of prop-l-enyl cleavage. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2635 / 2640
页数:6
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