Palladium-catalyzed (Ullmann-Type) homocoupling of aryl halides: A convenient and general synthesis of symmetrical biaryls via inter- and intramolecular coupling reactions

被引：203

作者：

Hennings, DD ^{[1
]}

Iwama, T ^{[1
]}

Rawal, VH ^{[1
]}

机构：

[1] Univ Chicago, Dept Chem, Chicago, IL 60637 USA

来源：

ORGANIC LETTERS | 1999年 / 1卷 / 08期

关键词：

D O I：

10.1021/ol990872+

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHICS] A convenient new procedure is described for both inter- and intramolecular homocoupling of aryl halides (Ullmann reaction) using catalytic palladium in the presence of hydroquinone, a homogeneous reductant. Optimal conditions for the reductive coupling include the use of a 1:1 molar ratio of Pd(OAc)(2) and As(o-tolyl)(3) in catalytic amounts under basic conditions.

引用

页码：1205 / 1208

页数：4

共 28 条

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