Carboalkoxylation of butadiene to form dialkyl adipate

Details Carboalkoxylation of butadiene to form dialkyl adipate Carboalkoxylation of butadiene to form dialkyl adipate

1986-06-27

1987-09-08

Lone, Werren B.

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

Organic compounds

Carboxylic acid esters

560190, 562590, C07C 6738

Patent

active

046925490

ABSTRACT:
Production of dialkyl adipate by reaction of butadiene, carbon dioxide, and a lower alkyl alcohol in the presence of a cobalt catalyst and a tertiary nitrogen base cocatalyst to form a liquid mixture containing alkyl 3-pentenoate, adding alkanoic acid to the mixture in an amount sufficient to keep the cobalt catalyst active, and then reacting the mixture to form dialkyl adipate. The acid addition increases the rate of reaction relative to catalyst deactivation rate and reduces the consumption of the tertiary nitrogen base cocatalyst.

REFERENCES:
patent: 4169956 (1979-10-01), Kummer et al.
patent: 4404394 (1983-09-01), Isogai et al.
patent: 4485255 (1984-11-01), Jenck
patent: 4508917 (1985-04-01), Jenck
patent: 4570016 (1986-02-01), Bruner et al.

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