Organometallics

Hydrosilylation of Carbonyl-Containing Substrates Catalyzed by an Electrophilic η1-Silane Iridium (III) Complex

S Park, M Brookhart

Index: Park, Sehoon; Brookhart, Maurice Organometallics, 2010 , vol. 29, # 22 p. 6057 - 6064

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Citation Number: 65

Abstract

Iridium complex 1,(POCOP) Ir (H)(acetone)+(POCOP= 2, 6-bis (di-tert-butylphosphinito) phenyl), catalyzes hydrosilylation of ketones and aldehydes using triethylsilane with quantitative conversion at 25° C in 20− 30 min with 0.5 mol% catalyst loadings. The diastereoselectivity of hydrosilylation of 4-tert-butyl cyclohexanone is highly temperature dependent, favoring the trans product at low temperatures. Mechanistic studies show that ...