| abstract |
The invention relates to a catalyst containing rhodium and a compound of the general formula (I), in which R<1>, R<2> and R<3> are identical or different and independently of each other are hydrogen, an alkyl group or alkoxy group with 1 to 4 carbon atoms, an alkenyl group with 2 to 4 carbon atoms, or R<1> and R<2> including the carbon atoms connected therewith in each case form a ring with 6 carbon atoms, m and n independently of each other are 0 or 1, and (m+n) is equal to 1 or 2, and R is an unsubstituted phenyl radical or naphthyl radical or a phenyl radical or naphthyl radical substituted by an alkyl group with 1 to 4 carbon atoms, an amino group or dialkyl amino group with a total of 2 to 8 carbon atoms. The invention also relates to a process for preparation of aldehydes by reaction of an olefinic compound having 2 to 20 carbon atoms with carbon monoxide and hydrogen in the presence of said catalyst. |