Organometallics

Intra-and Intermolecular C–H Activation by Bis (phenolate) pyridineiridium (III) Complexes

R Fu, JE Bercaw, JA Labinger

Index: Fu, Ross; Bercaw, John E.; Labinger, Jay A. Organometallics, 2011 , vol. 30, # 24 p. 6751 - 6765

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Citation Number: 16

Abstract

A bis (phenolate) pyridine pincer ligand (henceforth abbreviated as ONO) has been employed to support a variety of iridium complexes in oxidation states I, III, and IV. Complexes (ONO) IrL2Me (L= PPh3, PEt3) react with I2 to cleave the Ir–C bond and liberate MeI, apparently via a mechanism beginning with electron transfer to generate an intermediate Ir (IV) complex, which can be isolated and characterized for the case L= PEt3 ...