Syntheses of Acyliridium Porphyrins by Aldehydic Carbon−Hydrogen Bond Activation with Iridium(III) Porphyrin Chloride and Methyl
作者:Xu Song、Kin Shing Chan
DOI:10.1021/om060849+
日期:2007.2.1
Acyliridium porphyrins were synthesized by the reactions of aryl aldehydes with iridium(III) porphyrin chloride and methyl under solvent-free conditions with high yields. Selective aldehydic carbon hydrogen bond activation (CHA) was observed without any aromatic CHA in all the cases. Mechanistic investigation on the reactions with Ir(ttp)Cl(CO) suggested that (ttp)Ir cation was a likely intermediate
Cleavage of Carbonyl Carbon and α-Carbon Bond of Acetophenones by Iridium(III) Porphyrin Complexes
作者:Bao Zhu Li、Xu Song、Hong Sang Fung、Kin Shing Chan
DOI:10.1021/om1000887
日期:2010.5.10
and aromatic carbon−hydrogen bond activation products are kinetic products, which can be converted by reaction with water to iridium porphyrin hydride (Ir(ttp)H) via iridium porphyrin hydroxide (Ir(ttp)OH). Both Ir(ttp)OH and Ir(ttp)H were the possible intermediates to cleave the C(═O)−C(methyl) bond of acetophenones and to generate iridium porphyrin acyl complexes as the thermodynamic products.