Chiral bis(pyridylimino)isoindoles: A highly modular class of pincer ligands for enantioselective catalysis

被引：219
作者：
Langlotz, Bjoern K. [1 ]
Wadepohl, Hubert [1 ]
Gade, Lutz H. [1 ]
机构：
[1] Heidelberg Univ, Inst Anorgan Chem, D-69120 Heidelberg, Germany
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 25期
关键词：
cobalt; cyclopropanation; hydrosilylation; iron; ligand design;
D O I：
10.1002/anie.200801150
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
(Chemical Equation Presented) Protect your back: Chiral wedges (red, see scheme) at the wingtips of bis(2-pyridylimino) isoindole (bpi) pincer ligands with an appropriate protective hedge (green), to block the metal center from backside attack, in the backbone represent a new class of efficient 3d-metal catalysts. These catalysts gave excellent enantioselectivities in the iron-catalyzed hydrosilylation of arylketones and in the cobalt-catalyzed cyclopropanation of alkenes. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
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收藏
页码：4670 / 4674
页数：5
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