Cyclometalated tantalum diphenolate pincer complexes:: Intramolecular C-H/M-CH3 σ-bond metathesis may be faster than O-H/M-CH3 protonolysis

被引：63

作者：

Agapie, Theodor ^{[1
]}

Bercaw, John E. ^{[1
]}

机构：

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

来源：

ORGANOMETALLICS | 2007年 / 26卷 / 12期

关键词：

D O I：

10.1021/om700284c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A diphenol linked at the ortho positions to a benzene ring was metalated with TaCl2(CH3)(3). Deuterium labeling of the phenol hydrogens and of the linking 1,3-benzenediyl ring reveals an unexpected mechanism involving protonolysis of a methyl group, followed by C-H/Ta-CH3 sigma-bond metathesis, leading to cyclometalation of the linking ring and finally protonation of the cyclometalated group by the pendant phenol.

引用

页码：2957 / 2959

页数：3

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