Protonation of platinum(II) dialkyl complexes containing ligands with proximate H-bonding substituents

被引：29

作者：

Britovsek, GJP

Taylor, RA

Sunley, GJ

Law, DJ

White, AJP

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England

[2] BP Chem Ltd, Hull Res & Technol Ctr, Kingston Upon Hull HU12 8DS, N Humberside, England

来源：

ORGANOMETALLICS | 2006年 / 25卷 / 08期

关键词：

D O I：

10.1021/om060036l

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The possibility of activating C-H bonds at a platinum(H) center that contains a ligand with a proximate H-bonding functionality, for example a NH2 Substituent, has been investigated. A series of platinum(II) dimethyl complexes [Pt(L)Me-2], where L is an unsymmetrically substituted bipyridine ligand, has been prepared. Protonation reactions in acetonitrile with 1 equiv of a strong acid generate cationic complexes of the type [Pt(L)Me(CH3CN)](+). The selectivity of the protonation reactions appears to be governed by steric effects rather than H-bonding effects. This is believed to be the result of the low basicity of the amino subsituent in 2-amino pyridines.

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页码：2074 / 2079

页数：6

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