Stereoselective synthesis of Z alkenyl halides via Julia olefination

被引:55
作者
Lebrun, ME [1 ]
Le Marquand, P [1 ]
Berthelette, C [1 ]
机构
[1] Merck Frosst Ctr Therapeut Res, Dept Med Chem, Pointe Claire, PQ H9R 4P8, Canada
关键词
D O I
10.1021/jo052370h
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Julia olefination between alpha-halomethyl sulfones and a variety of aldehydes afforded alkenyl halides in good to excellent yields with high E/Z stereo selectivities. Sulfones were readily prepared in two or three steps from commercially available reagents in good yields. Optimization revealed that the nature of the Z solvent, the base, and the additive were crucial to obtain the desired alkenyl halides.
引用
收藏
页码:2009 / 2013
页数:5
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