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

被引：268

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.

引用

页码：4456 / 4460

页数：5

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