A new improved catalyst for the palladium-catalyzed amination of aryl chlorides

被引：113

作者：

Ehrentraut, A ^{[1
]}

Zapf, A ^{[1
]}

Beller, M ^{[1
]}

机构：

[1] Univ Rostock eV, Inst Organ Katalyseforsch, D-18055 Rostock, Germany

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2002年 / 182卷 / 01期

关键词：

palladium; homogeneous catalysis; animation; aryl chlorides; anilines;

D O I：

10.1016/S1381-1169(01)00503-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The catalytic amination of aryl chlorides is an interesting subject for the fine chemical industry due to the importance of anilines as building blocks for pharmaceuticals, agrochemicals and new materials. Here we report the application of our recently developed di(1-adamantyl)alkylphosphines for the palladium-catalyzed animation of non-activated aryl chlorides. In general, excellent yields of amination products are obtained using 0.5 mol% of palladium(II)acetate and I mol% of di(1-adamantyl)-n-butylphosphine (12) in toluene at 120 degreesC. Remarkable results are obtained for the coupling of hindered amines with sterically congested aryl chlorides. Comparing the new catalyst system with previously reported best palladium catalysts we found in all cases improved yields of amination products in the presence of our ligands. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：515 / 523

页数：9

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