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.
Iridium-Catalyzed H/D Exchange into Organic Compounds in Water
作者:Steven R. Klei、Jeffrey T. Golden、T. Don Tilley、Robert G. Bergman
DOI:10.1021/ja017219d
日期:2002.3.1
The air-stable complex Cp(PMe(3))IrCl(2) efficiently catalyzes the exchange of deuterium from D(2)O into both activated and unactivated C-H bonds of organic molecules without added acid or stabilizers. Selectivity is observed in many cases, with activation of primary C-H bonds occurring preferentially. A number of new stoichiometric transformations involving the iridiym catalyst precursor are also