Missing cyclization pathways and new rearrangements unveiled in the gold(I) and platinum(II)-catalyzed cyclization of 1,6-enynes

被引：93

作者：

Ferrer, Catalina ^{[1
]}

Raducan, Mihai ^{[1
]}

Nevado, Cristina ^{[1
]}

Claverie, Christelle K. ^{[1
]}

Echavarren, Antonio M. ^{[1
]}

机构：

[1] Inst Chem Res Catalonia ICIQ, E-43007 Tarragona, Spain

来源：

TETRAHEDRON | 2007年 / 63卷 / 27期

关键词：

gold; platinum; enynes; cyclizations; rearrangements;

D O I：

10.1016/j.tet.2007.02.122

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Cyclopropyl metal carbenes formed in the 6-endo-dig cyclization may evolve to form seven-membered ring intermediates. This has been achieved for the first time by using highly electrophilic platinum(II) and gold(I) complexes. Gold(I) also triggers a remarkable rearrangement of certain enynes leading to complex cyclic systems. A new cationic platinacycle is described, which catalyzes skeletal rear-rangements and other reactions of enynes at room temperature. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：6306 / 6316

页数：11

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