Direct asymmetric organocatalytic de novo synthesis of carbohydrates

被引:109
作者
Grondal, C [1 ]
Enders, D [1 ]
机构
[1] Rhein Westfal TH Aachen, Inst Organ Chem, D-52074 Aachen, Germany
关键词
aldol reaction; carbohydrates; organocatalysis; asymmetric synthesis; stereoselective reduction;
D O I
10.1016/j.tet.2005.09.060
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A biomimetic organocatalytic asymmetric synthesis of carbohydrates can be accomplished by a proline catalyzed aldol reaction with the dihydroxyacetone equivalent 2,2-dimethyl-1,3-dioxan-5-one and various aldehydes. The biomimetic C-3+C-n, strategy directly Generates selectively protected carbohydrates in one step, which can be easily deprotected. Additionally, the stereoselective reduction of the keto functions allows a direct entry to different aldopentoses. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:329 / 337
页数:9
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