Reactivity of (E)-1-(tert-butyldimethyl)silyloxy-3,3-bis(tributylstannyl)-propene: Syn selective S-E' addition to aldehydes

被引:28
|
作者
Madec, D [1 ]
Ferezou, JP [1 ]
机构
[1] ECOLE POLYTECH,CNRS,DCSO,SYNTH ORGAN LAB,F-91128 PALAISEAU,FRANCE
关键词
D O I
10.1016/S0040-4039(97)01559-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The reactivity of (E)-1-(tert-butyldimethyl)silyloxy-3,3-bis(tributylstannyl)propene 1 as potential 1,3 dianion equivalent has been investigated. Condensation with aldehydes 4a-h, in presence of BF3OEt2, afforded in high yields the mono-protected diols 5a-h exhibiting an exclusive E configuration of the vinyltin residue. Good to high syn selectivities have been measured, in agreement with an S-E' addition mechanism. Further transformation of the resulting vinyltin moiety of these diols into various functionalities has been successfully tested. (C) 1997 Elsevier Science Ltd.
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页码:6661 / 6664
页数:4