| 摘要 |
PURPOSE:To hydroformylate a lower olefin into the corresponding aldehyde in the presence of a rhodium complex compound and a trisubstituted phosphine, by adding a specific amount of a diphosphino compound to the reaction system to prolong the life of the catalytic activity. CONSTITUTION:In the production of the corresponding aldehyde by the hydro- formylation of a lower olefin in an organic solvent in the presence of a rhodium complex compound and a trisubstituted phosphine, a diphosphino compound of formula I (A<1> and A<2> are aryls; R<1> and R<2> are aryls or saturated hydrocarbon residues; formula II is 3-6C alicyclic hydrocarbon), e.g. trans-1,2-bis(diphenylphosphinomethyl)cyclopropane, is added to the reaction system in an amount of 0.20-5.0 equivalents (suitably 0.25-3.5 equivalents) per atom of Rh in therhodium complex compound EFFECT:Normal-type aldehydes which are of high utility value are abtainable in high selectivity. |
