| 摘要 |
The present invention relates to a process for the preparation of aldehydes, which comprises reacting an olefinic compound having 2 to 20 carbon atoms with carbon monoxide and hydrogen, in the presence or absence of a solvent, in the presence of a catalyst comprising rhodium and a compound or a mixture of compounds of the formula (I) <IMAGE> (I) in which R1 is H or an alkyl radical having 1 to 12 carbon atoms, R2 is a straight-chain alkylene radical having 1 to 8 carbon atoms, an oxygen-containing alkylene radical having 2 to 4 carbon atoms, a radical of the formula (II) or (III) <IMAGE> (II) <IMAGE> (III) or a cycloalkylene radical having 3 to 10 carbon atoms, R3 is an alkyl radical having 1 to 25 carbon atoms or an aryl radical having 6 to 10 carbon atoms, A is a radical -COO- or -SO3- and x=0, y=1, m=1 and n=1, or x=0.1, y=1, m=(1 or 2) and n=(1 or 2), or, if R2 is a radical of the formula (II) or (III), x=1, y=0, m=(0 or 1) and n=(0 or 1), at a temperature from 50 DEG to 190 DEG C. and under a pressure from 0.1 to 45 MPa, and separating the reaction product off from the catalyst.
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