PRODUCTION OF ALIPHATIC OR CYCLOALIPHATIC DIALDEHYDES AND/OR ACETALS OF THE SAME

摘要

1455645 Aliphatic or cycloaliphatic dialdehydes and/or acetals of the same BASF AG 5 April 1974 [7 April 1973] 15215/74 Heading C2C The invention comprises a process for the production of an aliphatic or cycloaliphatic dialdehyde or an acetal of the same by reaction of an aliphatic or cycloaliphatic conjugated diene with carbon monoxide and hydrogen in the presence of a rhodium catalyst (which has been modified with a tertiary phosphine or phosphite) at a temperature of from 70‹ to 160‹ C. and at a pressure of from 100 to 600 atmospheres absolute, wherein the catalyst used is a rhodium complex which contains carbon monoxide, a tertiary organic phosphine or a tertiary organic phosphite and a halogen atom as ligands. It is advantageous to carry out the reaction in the presence of an alkanol or alkane diol as a solvent.