Mechanistic studies of ligand-induced thermolytic reductive elimination of biaryl from tetraarylosmium(IV)

被引：6

作者：

Hardy, DT ^{[1
]}

Wilkinson, G ^{[1
]}

Young, GB ^{[1
]}

机构：

[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,INORGAN CHEM LABS,LONDON SW7 2AY,ENGLAND

来源：

POLYHEDRON | 1996年 / 15卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0277-5387(95)00364-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of new tetraarylosmium(IV) complexes Os(2,4-Me(2)C(6)H(3))(4) and Os(4-F-2-MeC(6)H(3))(4) with PMe(3) and P(OMe)(3) has been investigated, as have the reactions between Os(2-MeC(6)H(4))(4) and PMe(3), P(OMe)(3), P(OEt)(3) and P(OBu(n))(3). These lead to reductive C-C elimination, forming hexahaptobiaryl species Os(eta(6)-Ar-2)(Ar)(2)(PR(3)) as initial products (Ar = 2,4-Me(2)C(6)H(3), 4-F-2-MeC(6)H(3), R = Me, Ar = 2-MeC(6)H(4), R = Me, OMe, Oft and OBu(n)). Kinetic analyses of these rearrangements suggest an associative mechanism, in which coordination of the P-donor and intramolecular reductive C-C elimination are synchronous.

引用

页码：1363 / 1373

页数：11

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