PROCESS FOR PREPARING ALDEHYDES BEING SUBSTITUTED IN POSITION ALPHA BY ALKYL RADICAL

摘要

The present invention relates to a process for the preparation of aldehydes having 8 to 17 carbon atoms, substituted and alpha-position by an alkyl moiety, by hydroformylating 7 to 16 carbon olefins with an internal double bond, wherein the predominantly terminal double olefins are by isomerization at 160 DEG-210 DEG C. in the liquid phase in the presence of iron carbonyl, and without separation of the isomerization catalyst are hydroformylated at 80 DEG to 200 DEG C. and 5 to 50 MPa in the presence of rhodium catalyst.ŕ