Selective oxo-functionalisation of C-H bond with t-BuOOH catalysed by [RuIII(amp)(bipy)Cl] complex (H2amp=N-(hydroxyphenyl)salicyldimine;: bipy=2,2′bipyridyl)

被引：21

作者：

Chatterjee, D ^{[1
]}

Mitra, A ^{[1
]}

Mukherjee, S ^{[1
]}

机构：

[1] Cent Mech Engn Res Inst, Chem Sect, Durgapur 713209, India

来源：

POLYHEDRON | 1999年 / 18卷 / 20期

关键词：

oxo-functionalisation; Ru-III(amp)(bipy)Cl; t-BuOOH; cyclohexene; cyclohexane; stilbenes; kinetics;

D O I：

10.1016/S0277-5387(99)00183-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

[Ru-III(amp)(bipy)Cl] complex (1) has been synthesised and characterised by physico-chemical methods. Complex-1 is found to be an effective catalyst in the oxidation of cyclohexene to cyclohexene-1-ol, cyclohexane to cyclohexanol and cyclohexanone, stilbenes to stilbene epoxides and benzaldehyde upon reaction with teut-butylhydroperoxide (t-BuOOH). A high valent Ru(V)-oxo species formed as a catalytic intermediate in the reaction of complex-1 with t-BuOOH is proposed as the source of oxygen in the oxidised product. Kinetic data suggests that the formation Ru(V)-oxo is substitution controlled. The results of the product distribution in the present investigation clearly indicate the high electrophilic nature of Ru=O bond in [Ru-V(amp)(bipy)O](+) intermediate complex which leads to high affinity for atomic hydrogen/hydride abstraction. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：2659 / 2663

页数：5