1,4-Butanediol from hydrogenated hydroformylated allyl acetate

Details 1,4-Butanediol from hydrogenated hydroformylated allyl acetate 1,4-Butanediol from hydrogenated hydroformylated allyl acetate

1975-02-10

1976-03-02

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 2900

Patent

active

039418510

ABSTRACT:
Dehydroformylation of isomeric acetoxybutyraldehydes, with minimal dehydroacetoxylation, can be accomplished at a temperature in the range of 120.degree.-250.degree. C. in a nonoxidizing atmosphere in the presence of an essentially neutral noble metal catalyst to produce allyl acetate, 1-propenyl acetate or mixtures thereof. This reaction permits recycle of the undesired isomeric acetoxybutyraldehyde products of the hydroformylation of allyl acetate of 1-propenyl acetate to the desired 4-acetoxybutyraldehyde which is an intermediate in the production of 1,4-butanediol useful in making polyesters.

REFERENCES:
patent: 3239569 (1966-03-01), Slough et al.
patent: 3546278 (1970-12-01), Hayden et al.
patent: 3555098 (1971-01-01), Olivier et al.
patent: 3647892 (1972-03-01), Hoch
patent: 3670014 (1972-06-01), Fernholz et al.

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