Hydroformylation process

Details Hydroformylation process Hydroformylation process

C - Chemistry, Metallurgy

07

C

C07C 31/02 (2006.01) C07C 29/16 (2006.01) C07C 45/50 (2006.01) C07C 47/02 (2006.01)

Patent

CA 2245486

A process for the hydroformylation of ethylenically unsaturated compounds with carbon monoxide and hydrogen in the presence of a catalyst system comprising a) a source of platinum group metal cations; b) a source of non-halide anions; c) a source of at least one bidentate ligand of the formula R1R2M1RM2R3R4 (I) wherein M1 and M2 independently represent a phosphorus, arsenic or antimony atom, R represents a bivalent bridging group containing from 1-4 atoms in the bridge, R1 and R2 independently represent a substituted or unsubstituted hydrocarbyl group, or together represent a bivalent substituted or unsubstituted cyclic group whereby the two free valencies are linked to M1, and R3 and R4 independently represent a substituted or unsubstituted hydrocarbyl group, or together represent a bivalent substituted or unsubstituted cyclic group whereby the two free valencies are linked to M2% and d) a source of halide anions chosen from the group of chloride, iodide and bromide and mixtures thereof, characterised by the additional presence of water, in an amount of more than 0.6 wt% based on the total of the reaction mixture and up to its solubility limit under the reaction conditions.

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