Hydroformylation catalyst and process

Details Hydroformylation catalyst and process Hydroformylation catalyst and process

1977-08-19

1980-05-06

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

252431P, 260429R, 568455, C07C 4510

Patent

active

042017289

ABSTRACT:
This invention provides a catalyst and process for achieving highly selective straight chain aldehyde formation from alpha-olefins under hydroformylation conditions. The improved hydroformylation results are obtained under mild conditions of temperature and pressure in the presence of a stabilized catalyst complex of rhodium metal, bidentate ligand and monodentate ligand represented by the formula: ##STR1## Illustrative of a preferred bidentate ligand is trans 1,2-bis(diphenylphosphinomethyl)cyclobutane. Illustrative of a preferred monodentate ligand is diphenylethylphosphine. It is an essential feature of the invention process that the monodentate ligand is provided in a molar excess with respect to the rhodium metal in the stabilized catalyst complex.

REFERENCES:
patent: 3239566 (1966-03-01), Slaugh et al.
patent: 3480659 (1969-11-01), Dewhirst
patent: 3527809 (1970-09-01), Pruett et al.
patent: 3939188 (1976-02-01), McVicker

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