Patent ID: 6010975
Filing Date: 2000-01-04
Classification: B01J,C07C

Abstract:
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.