Alkynylsilanes as convenient precursors for the stereoselective synthesis of (E)-disubstituted alkenes

被引:0
|
作者
Zhao, H [1 ]
Cai, MZ [1 ]
机构
[1] Jiangxi Normal Univ, Dept Chem, Nanchang 330027, Peoples R China
关键词
hydromagnesiation; (E)-disubstituted alkene; stereoselective synthesis;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Hydromagneisation of alkynylsilanes 1 gives (Z)-alpha-silylvinyl Grignard reagents 2, which are reacted with alkyl iodides or aryl iodides in the presence of Cul or Pd(PPh3)(4) catalysts to afford (Z)-1,2-disubstituted vinylsilanes 3 in good yields. Intermediates 3 can undergo a desilylation reaction to give (E)-disubstituted alkenes 4 in high yields.
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页码:608 / 610
页数:3
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