Direct asymmetric three-component organocatalytic anti-selective Mannich reactions in a purely aqueous system

被引:138
作者
Lili Cheng
Xiaoyu Wu
Yixin Lu
机构
[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore
[2] Natl Univ Singapore, Med Chem Program, Off Life Sci, Singapore 117543, Singapore
关键词
D O I
10.1039/b701579h
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The direct three-component Mannich reactions of O-benzyl hydroxyacetone with p-anisidine and aromatic or aliphatic aldehydes in the presence of an L-threonine-derived catalyst afforded anti-1,2-amino alcohols in good-to-excellent yields and with enantioselectivities of up to 97%. This study is the first demonstration that direct three-component Mannich reactions can be promoted by a primary amino acid in water.
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页码:1018 / 1020
页数:3
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