Electrophilic 5-endo-trig cyclisations of 2-silyl-3-alkenols. A stereoselective route to polysubstituted tetrahydrofurans.

被引:34
作者
Andrey, O [1 ]
Ducry, L [1 ]
Landais, Y [1 ]
Planchenault, D [1 ]
Weber, V [1 ]
机构
[1] UNIV LAUSANNE,COLL PROPEDEUT,INST CHIM ORGAN,CH-1015 LAUSANNE,SWITZERLAND
关键词
ALDOL-CYCLIZATION SEQUENCE; ALPHA-SILYLACETIC ESTERS; SUBSTITUTED TETRAHYDROFURANS; HOMOALLYLIC ALCOHOLS; ORGANIC-SYNTHESIS; STEREOCONTROLLED SYNTHESIS; STEREOSPECIFIC SYNTHESIS; SILAFUNCTIONAL COMPOUNDS; ORGANOTIN COMPOUNDS; SILICON;
D O I
10.1016/S0040-4020(97)00109-9
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Electrophilic 5-endo-trig cyclisations of allylsilanes have been carried out leading to tri- and tetrasubstituted tetrahydrofurans with reasonable fields and excellent diastereoselectivities. A rationalization of both the regio- and the stereoselectivity has been proposed. A silicon group having a thienyl fragment attached to the silicon has also been devised was shown to be oxidized under both electrophilic and nucleophilic conditions. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码:4339 / 4352
页数:14
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