PROCESS FOR THE PRODUCTION OF ALDEHYDES BY HYDROFORMYLATION IN PRESENCE OF RHODIUM COMPOUND

摘要

This invention relates to rhodium compounds having the general formula: HRh(CO)(XR3)n(YR min 3)3-n wherein X is phosphorus, arsenic or antimony; Y is arsenic or antimony when X is phosphorus, Y is phosphorus or antimony when X is arsenic, or Y is phosphorus, arsenic or antimony when X is antimony; R and R min are aryl groups; and n is an integer of 1 or 2. Further, it relates to the hydroformylation of olefins in the presence of a rhodium catalyst, such as HRh(CO)(PPh3)2(AsPh3) / excess PPh3 and AsPh3 or HRh (CO)(PPh3)(AsPh3)2 / excess PPh3 and AsPh3. An oxo process may be carried out in the presence of a rhodium source and said free mixed ligands. For example, HRh(CO)PPh3)3 with excess AsPh3/PPh3 may be used.