Back to results
US 6,010,975 AGranted
Catalyst composition for preparing 3-pentenoic ester from butadiene
AssigneeIndustrial Technology Research Institute
InventorsJing-Cherng Tsai, Wen-Sheng Chang, Chen-Pang Liu, Jui-Hsien Huang, Bor-Ping Wang
Life of this patent
Estimating the term…
Abstract
A catalyst composition for the preparation of 3-pentenoic ester from butadiene. The catalyst composition includes a palladium complex; and a bidentate phosphine with the following formula: .sub.1 R.sub.2 P--(CH.sub.2)n--PR.sub.3 R.sub.4, wherein n is a integer from 1 to 6; and a bulky benzoic carboxylic acid.
Claims12
A catalyst composition for preparing a 3-pentenoic ester from butadiene and an alcohol, comprising:
- (a) a palladium complex;
- (b) a bidentate phosphine ligand with the following formula:
- R.sub.1 R.sub.2 P--(CH.sub.2).sub.n --PR.sub.3 R.sub.4 ;
- wherein n is an integer from 1to 6, R.sub.1, R.sub.2, R.sub.3, R.sub.4, are, independently phenyl, naphenyl, or aromatic fused ring substituants, and
- (c) a bulky benzoic carboxylic acid, selected from the group consisting of 2,4,6-tri-isopropyl benzoic acid, 2,4,6-tri-tert-butyl benzoic acid, 2,4,6-tri-isobutyl benzoic acid, 2,6-di-isopropyl benzoic acid, 2,6-tri-tert-butyl benzoic acid, and 2,6-di-isobutyl benzoic acid.
2 more elements
A catalyst composition for preparing a 3-pentenoic ester from butadiene and an alcohol, comprising:
- (a) a palladium complex;
- (b) a bidentate phosphine ligand with the following formula:
- R.sub.1 R.sub.2 P--(CH.sub.2).sub.n --PR.sub.3 R.sub.4 ;
- wherein n is an integer from 1 to 6, R.sub.1, R.sub.2, R.sub.3, R.sub.4, are, independently, phenyl, naphenyl, or aromatic fused ring substituants;
- and
- (c) wherein said bidentate phosphine ligand is selected from the group consisting of .alpha.,.alpha.'-diphenyl phosphino-o-xylene and 2,2'-bis(diphenylphosphino methyl)-1,1'-biphenyl.
3 more elements
Dependencies are inferred from the claim text.