One??Pot, Selective Hydroformylation, Condensation, and Hydrogenation Processes by a Sol–Gel Entrapped Rhodium Complex, an Immobilized Base, and an Ionic …

K Hamza, H Schumann, J Blum

Index: Hamza, Khalil; Schumann, Herbert; Blum, Jochanan European Journal of Organic Chemistry, 2009 , # 10 p. 1502 - 1505

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Citation Number: 8

Abstract

Abstract We report on a one-pot, multistep process in which styrene derivatives are selectively hydroformylated to give branched aldehydes, which in turn, are condensed with reactive methylene compounds (malononitrile, ethyl cyanoacetate), and then hydrogenated. The process takes place at 80 C under 20.7 bar H 2 and 20.7 bar CO in the presence of [Rh (cod) Cl] 2 and Na [Ph 2 P-3-(C 6 H 4 SO 3)], which have been co-entrapped within ionic ...