Tandem cyclopropanation/ring-closing metathesis of dienynes

被引:80
作者
Peppers, BP [1 ]
Diver, ST [1 ]
机构
[1] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA
关键词
D O I
10.1021/ja049079o
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Certain dienynes give cyclorearrangement by tandem cyclopropanation/ring-closing alkene metathesis, triggered by either a ruthenium carbene or noncarbene ruthenium(II) precatalyst. The process represents a variation of enyne metathesis where presumed cyclopropyl carbene intermediates undergo a consecutive ring-closing metathesis. A mechanistic proposal is offered, and sequential use of catalysts provided a tandem ring-closing enyne/alkene metathesis product. Copyright © 2004 American Chemical Society.
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收藏
页码:9524 / 9525
页数:2
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