Novel prolinamide-ureas as organocatalysts for the asymmetric aldol reaction

被引:36
|
作者
Revelou, Panagiota [1 ]
Kokotos, Christoforos G. [1 ]
Moutevelis-Minakakis, Panagiota [1 ]
机构
[1] Univ Athens, Dept Chem, Organ Chem Lab, GR-15771 Athens, Greece
关键词
Aldol reaction; Organocatalysis; Prolinamides; Ureas; Asymmetric synthesis; DERIVATIVES; CHEMISTRY; CATALYSIS; MICHAEL; WATER;
D O I
10.1016/j.tet.2012.08.023
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Among the various versions of the aldol reaction, the enantioselective reaction between cyclic ketones and aldehydes constitutes a typical reaction model for the evaluation of novel organocatalysts. A multifunctional organocatalyst consisting of a prolinamide moiety, a gem diamine unit and a urea group was successfully employed in this asymmetric transformation. The products of the reaction between various ketones and aldehydes were obtained in high yields (up to 98%) with excellent diastereo- (up to >98:2 dr) and enantioselectivities (up to 99% ee). (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:8732 / 8738
页数:7
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