Preparation of butanedicarboxylic acid esters

Details Preparation of butanedicarboxylic acid esters Preparation of butanedicarboxylic acid esters

C - Chemistry, Metallurgy

07

C

260/486.7

C07C 67/36 (2006.01) C07C 69/44 (2006.01)

Patent

CA 1126752

O.Z. 0050/033014 Abstract of the Disclosure: In a process for the prepara- tion of butanedicarboxylic acid esters by a) reacting butadiene or hydrocarbon mixtures containing butadiene with carbon monoxide and a C1-C4-alkanol in the presence of a tertiary nitrogen base and a cobalt carbonyl catalyst at from 80 to 150°C under superatmospheric pressure, b) removing the greater part of the tertiary nitrogen base together with any excess hydrocarbon and c) reacting the resulting pentenoic acid ester, in the presence of the catalyst remaining in the reaction mixture, and in the presence of the remaining amount of tertiary nitrogen base, with carbon monoxide and a C1- to C4-alkanol at from 140 to 200°C under superatmospheric pressure, to give the butanedicarboxylic acid ester, the improvement wherein the reaction mixture in stage c) is substantially free from dissolved butadiene or butadiene bonded to the catalyst. Butanedicarboxylic acid esters may be used for the preparation of polymers.

319539

Affiliated with

Also associated with

Rating

Preparation of butanedicarboxylic acid esters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of butanedicarboxylic acid esters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of butanedicarboxylic acid esters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-863324