Cationic Ir(III) alkyl and hydride complexes: stoichiometric and catalytic CH activation by Cp∗(PMe3)Ir(R)(X) in homogeneous solution
摘要:
This report details our work in the area of C-H activation by cationic Ir(III) complexes. We highlight the previously reported chemistry of transition metal complexes of the type Cp-*(PMe3)Ir(R)(X) (Cp-* is pentamethylcyclopentadienyl or eta(5) -C5Me5; R = alkyl, hydrido; X = OSO2CF3, B(3,5-(CF3)(2)C6H3)(4))), and disclose new results concerning the production of these complexes using Lewis acids (LAs). Additionally, new work aimed at examining the mechanism of C-H activation by these complexes is presented. (C) 2002 Elsevier Science B.V. All rights reserved.
Exceptionally Low-Temperature Carbon−Hydrogen/Carbon−Deuterium Exchange Reactions of Organic and Organometallic Compounds Catalyzed by the Cp*(PMe<sub>3</sub>)IrH(ClCH<sub>2</sub>Cl)<sup>+</sup> Cation
作者:Jeffery T. Golden、Richard A. Andersen、Robert G. Bergman
DOI:10.1021/ja0155480
日期:2001.6.1
more useful, functionalized organiccompounds, much effort has gone into developing mild methods for carrying out this transformation in solution. 1 Most of the classical methods for activating C-H bonds involve oxidative addition reactions with uncharged, electron-rich, coordinatively unsaturated metal centers (eq 1). Recently, however, several new C -H activation reactions have been discovered that