NOVEL HYDROFORMYLATION PROCESS

摘要

The present invention relates to a process for producing 4-hydroxybutyraldehyde, characterized in that allyl alcohol dissolved in polar solvents is reacted with CO and H2 in the presence of a catalytic system which is formed from a rhodium complex and a cyclobutane ligand which contains at least two trans-coordinated 1,3-dialkylphenyl-phosphinomethyl groups, with the exclusion of catalysts which contain an aliphatic, araliphatic or cycloaliphatic phosphine as ligand. In which R1 is alkyl, preferably methyl, ethyl or propyl R2 is H or an alkoxy group, R3 and R4 independently of one another, are H, CH2OR1, CH2O-aralkyl, CH2OH, CH2—[P(3,5-R1,R1-4-R2-phenyl)2] or CH2O—(CH2—CH2—O)m—H where m is a number from 1 to 1000.;

主权项

1. A process for producing 4-hydroxybutyraldehyde, characterized in that allyl alcohol is reacted in polar solvents with CO and H2 in the presence of a catalytic system which is formed from a rhodium complex and a cyclobutane ligand which comprises at least two trans-coordinated 1,3-dialkylphenylphosphinomethyl groups, with the exclusion of catalysts which contain an aliphatic, araliphatic or cycloaliphatic phosphine as ligand.