Contrasting reactivity in Lewis acid-promoted reactions of thio- and silyl-allenes with 1,4-benzoquinones

被引:13
作者
Engler, TA
Agrios, K
Reddy, JP
Iyengar, R
机构
[1] Department of Chemistry, University of Kansas, Lawrence
关键词
D O I
10.1016/0040-4039(95)02164-7
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
In Ti(IV)-promoted reactions with 2-methoxy-1,4-benzoquinones 3, thioallenes I give 2+2 and/or 3+2 products via attack on a C=C moiety of the quinone, whereas silylallene 2 gives products derived from attack on a carbonyl group of the quinone.
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页码:327 / 330
页数:4
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