Hydroformylation process employing rhodium-based catalysts...

Details Hydroformylation process employing rhodium-based catalysts... Hydroformylation process employing rhodium-based catalysts...

C - Chemistry, Metallurgy

07

C

260/573.2

C07C 45/50 (2006.01) C07F 17/02 (2006.01)

Patent

CA 1123858

ABSTRACT An improved process for hydroformylating an ethylenically-un- saturated compound to form an aldehyde derivative thereof in the presence of rhodium hydridocarbonyl in complex combination with an organic ligand, characterized by employing as said organic ligand a compound having two phosphino moieties, one being of the formula: Image and the other being of the formula: Image wherein Rl, R2, Rl', and R2' are organic radicals at least one of which con- tains an electronegative substituent moiety. The presence of the electro- negutive substituent in the ligand leads to an increased ratio of linear aldehyde to branched-chain aldehyde in the hydroformylation reaction product.

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