Synthesis of azepines by a gold-catalyzed intermolecular [4+3]-annulation

被引:200
作者
Shapiro, Nathan D. [1 ]
Toste, F. Dean [1 ]
机构
[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
关键词
D O I
10.1021/ja803890t
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A convenient gold(III)-catalyzed synthesis of azepines from the intermolecular annulation of propargyl esters and alpha,beta-unsaturated imines is reported (19 examples, 55-95% yield). This formal [4 + 3]-cycloaddition reaction is proposed to proceed via a stepwise process involving intramolecular trapping of an allyl-gold intermediate.
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页码:9244 / +
页数:3
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