Process for the catalytic preparation of aldehydes from olefins using ligand mixtures

US6403837B1 · kind B1 · utility

Assignee

• OXENO OLEFINCHEMIE GMBH · DE

Inventors

• Dieter Hess · Marl, DE
• Dirk Roettger · Recklinghausen, DE
• Detlef Selent · Berlin, DE
• Armin Boerner · Rostock, DE

Key dates

• Filing date: Nov 9, 2000
• Grant date: Jun 11, 2002
• Expiry date: Nov 9, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing aldehydes having from 4 to 25 carbon atoms by catalytic hydroformylation of the corresponding olefins, wherein the catalyst used comprises a metal of transition group 8 of the Periodic Table in the presence of a ligand A of the formula I whereX=As, Sb or P andR1,R2,R3: are each a substituted or unsubstituted aliphatic, cycloaliphatic or aromatic hydrocarbon radical having from 1 to 50 carbon atoms,where two of the radicals R1, R2, R3 can be covalently linked with the proviso that at least one of the hydrocarbon radicals R1, R2, R3 contains a heteroatom selected from the group consisting of O, S, N, F, Cl, Be, I, Se and Te, and a ligand B of the formula II where R4, R5, R6: are each a substituted or unsubstituted aliphatic, cycloaliphatic or aromatic hydrocarbon having from 1 to 50 carbon atoms,where two of the radicals R4, R5 and R6 can be covalently linked.