C-H bond activation by unsymmetrical 2-(N-arylimino)pyrrolide Pt complexes:: Geometric effects on reactivity

被引：49

作者：

Iverson, CN

Carter, CAG

Baker, RT

Scollard, JD

Labinger, JA

Bercaw, JE

机构：

[1] Los Alamos Natl Lab, Los Alamos Catalysis Initiat, Div Chem, Los Alamos, NM 87545 USA

[2] CALTECH, Arnold & Mabel Beckman Labs Chem Synth, Pasadena, CA 91125 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 42期

关键词：

D O I：

10.1021/ja036511d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reactions of chloroplatinum methyl complexes with N-(arylimino)pyrrolide anions afford cis and trans neutral platinum methyl complexes. Isomers with methyl trans to the pyrrolide nitrogen activate benzene C-H bonds at 85 °C more than 80 times faster than the corresponding cis isomer. In addition, reactions of platinum dimethyl complexes with N-(arylimino)pyrroles (Ar = 4-substituted phenyl) in C6D6 at ambient temperature give unlabeled methane and cis methyl complex containing heavily deuterated Pt-Me. In contrast, bulky aryl substituents give methane isotopomers and trans-Pt-Ph product. The origins of these observations are discussed. Copyright © 2003 American Chemical Society.

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页码：12674 / 12675

页数：2

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