Simple Gold-Catalyzed Synthesis of Benzofulvenesugem-Diaurated Species as "Instant Dual-Activation" Precatalysts

被引：265
作者：
Hashmi, A. Stephen K. [1 ]
Braun, Ingo [1 ]
Noesel, Pascal [1 ]
Schaedlich, Johannes [1 ]
Wieteck, Marcel [1 ]
Rudolph, Matthias [1 ]
Rominger, Frank [1 ]
机构：
[1] Univ Heidelberg, Inst Organ Chem, D-69120 Heidelberg, Germany
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2012年 / 51卷 / 18期
关键词：
alkynes; benzofulvenes; gold; homogeneous catalysis; vinylgold intermediates; COMPLEXES; CYCLOISOMERIZATION; CARBENE; BOND; VINYLIDENES; ALLENES; ALKYNES; DIYNES; MODEL;
D O I：
10.1002/anie.201109183
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Alkyl-substituted diynes deliver benzofulvenes in a unique gold-catalyzed reaction. The catalytic cycle involves the formation of gold acetylides by alkynyl C-H activation, the formation of vinylidene gold(I) intermediates by dual activation, and alkyl C-H activation by the vinylidene gold(I) species. gem-Diaurated species obtained from the catalysis reactions prove to be highly active catalysts for these conversions. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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收藏
页码：4456 / 4460
页数：5
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