Preparation of unsaturated carboxylic acids by carbonylation of

Details Preparation of unsaturated carboxylic acids by carbonylation of Preparation of unsaturated carboxylic acids by carbonylation of

1994-02-24

1995-01-10

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5702

Patent

active

053809386

ABSTRACT:
Unsaturated carboxylic acids, e.g., pentenoic acids, are prepared by carbonylating an allylic butenol and/or carboxylate ester thereof with carbon monoxide, in the presence of a catalytically effective amount of an iridium catalyst and an iodinated or brominated promoter therefor, and optionally, a copromoter, notably wherein the promoter/Ir molar ratio ranges from 0.1:1 to 20:1. The final product acids, e.g., 3-pentenoic acid, are themselves readily hydroxycarbonylated, for example, into adipic acid, via reaction with carbon monoxide and water.

REFERENCES:
patent: 3427344 (1969-02-01), Tsuji et al.
patent: 3980671 (1976-09-01), Fernholz et al.
patent: 4781868 (1988-11-01), Langerbeins
patent: 5166116 (1992-11-01), Drent et al.
patent: 5166421 (1992-11-01), Bruner, Jr.

Affiliated with

Also associated with

Rating

Preparation of unsaturated carboxylic acids by carbonylation of 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 unsaturated carboxylic acids by carbonylation of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of unsaturated carboxylic acids by carbonylation of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-852324