The combination of domino process and kinetic resolution: organocatalytic synthesis of functionalised cyclopentenes by sequential SN2′-Michael reaction

被引:31
|
作者
Yeh, Lun Fu [1 ]
Anwar, Shaik [1 ]
Chen, Kwunmin [1 ]
机构
[1] Natl Taiwan Normal Univ, Dept Chem, Taipei 116, Taiwan
关键词
Kinetic resolution; Organocatalysis; Cascade; Michael reaction; Cyclopentene; MICHAEL-ALDOL CONDENSATION; ENANTIOSELECTIVE SYNTHESIS; EFFICIENT SYNTHESIS; ALPHA; BETA-UNSATURATED ALDEHYDES; NITROALLYLIC ACETATES; ALCOHOLS; CONSTRUCTION; 1,2-DIOLS; KETONES; ENALS;
D O I
10.1016/j.tet.2012.06.085
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An interesting combination of organocatalytic cascade reaction and kinetic resolution was developed for the synthesis of functionalised cyclopentenes by sequential S(N)2'-Michael process. Treatment of the racemic nitroallylic acetates with glutaraldehyde in the presence of diphenylprolinol silyl ether to give tetrasubstituted cyclopentenes with high to excellent stereoselectivities (up to 96% ee and 12:1 dr). The less reactive enantiomeric substrates were generally recovered with good to excellent optical purities (up to 99% ee). (C) 2012 Published by Elsevier Ltd.
引用
收藏
页码:7317 / 7321
页数:5
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