Stereoselective synthesis of highly substituted γ-lactams by the [3+2] annulation of α-siloxy allylic silanes with chlorosulfonyl isocyanate

被引:36
|
作者
Romero, A [1 ]
Woerpel, KA [1 ]
机构
[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
关键词
D O I
10.1021/ol060596g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A stereoselective synthesis of gamma-lactams by the [3+2] annulation of alpha-siloxy allylic silanes with N-chlorosulfonyl isocyanate (CISO2NCO) was developed. The use of these allylic silanes allowed for further diastereoselective substitution of the resultant N,O-acetal to give highly substituted gamma-lactams. Oxidation of the silyl group afforded access to complex beta-hydroxy-gamma-lactams.
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页码:2127 / 2130
页数:4
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