Hydroformylation of olefins

Details Hydroformylation of olefins Hydroformylation of olefins

1979-01-29

1980-07-29

Lone, Werren B.

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

Organic compounds

Oxygen containing

568496, 568862, C07C 4510

Patent

active

042150779

ABSTRACT:
Hydroformylation of olefins is effected in an organic solvent in the presence of a rhodium complex and a trisubstituted phosphine to give the corresponding aldehydes. Addition of a diphosphinoalkane of the general formula ##STR1## wherein, in the formula, A.sup.1 and A.sup.2 are each aryl, R.sup.1 and R.sup.2 are each aryl or saturated hydrocarbon residues containing one or more carbon atoms, and Z is an alkylene radical whose principal chain contains 2 to 5 carbon atoms and optionally may have one or more lower alkyl substituents, to the hydroformylation reaction system in an amount of 0.20 to 2.5 equivalents per gram atom of the rhodium contained in the rhodium complex markedly prolongs the life of the rhodium catalyst.

REFERENCES:
patent: 3555098 (1971-01-01), Olivier et al.
patent: 3576881 (1971-04-01), Senn
patent: 4148830 (1979-04-01), Pruett et al.
patent: 4152344 (1979-05-01), Unruh
Jour. of Molecular Catalysis, vol. 3, pp. 101-109 (1977/1978) and vol. 3, 221-226 (1978).

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