Cationic gold(I) complexes:: Highly alkynophilic catalysts for the exo- and endo-cyclization of enynes

被引:548
作者
Nieto-Oberhuber, C [1 ]
Muñoz, MP [1 ]
Buñuel, E [1 ]
Nevado, C [1 ]
Cárdenas, DJ [1 ]
Echavarren, AM [1 ]
机构
[1] Univ Autonoma Madrid, Dept Quim Organ, E-28049 Madrid, Spain
关键词
alkynes; cyclization; density functional calculations; gold; rearrangements;
D O I
10.1002/anie.200353207
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
As good as gold: Alkynophilic cationic gold(i) complexes are very active catalysts for reactions of enynes that proceed exclusively through cyclopropyl carbene complexes as intermediates (see scheme). With such catalysts, the first examples of endocyclic skeletal rearrangements under mild conditions have been observed.
引用
收藏
页码:2402 / 2406
页数:5
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