Process for the hydrocarboxylation of ethylenically...

Details Process for the hydrocarboxylation of ethylenically... Process for the hydrocarboxylation of ethylenically...

2008-03-25

2008-03-25

Zucker, Paul A. (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

Reexamination Certificate

active

07348454

ABSTRACT:
A process for the hydrocarboxylation of an ethylenically unsaturated carboxylic acid, by reacting it with carbon monoxide and a co-reactant selected from the group of water and carboxylic acids in the presence of a catalyst system including: (a) a source of palladium; (b) a bidentate diphosphine of formula (I), R1R2>P—R3—R—R4—P<R5R6(I) wherein P represents a phosphorus atom; R1, R2, R5and R6independently represent the same or different optionally substituted organic groups containing a tertiary carbon atom through which the group is linked to the phosphorus atom; R3and R4independently represent optionally substituted alkylene groups and R represents an optionally substituted aromatic group; (c) a source of anions derived from an acid having a pKa of less than 3, as measured at 18° C. in an aqueous solution.

REFERENCES:
patent: 2001/0044556 (2001-11-01), Drent et al.
patent: 01/68583 (2001-09-01), None
patent: 02/48094 (2002-06-01), None
International Search Report dated Oct. 29, 2004 (PCT/EP2004/050820).
Intl Preliminary Report on Patentability (PCT/EP2004/050820).

Affiliated with

Also associated with

Rating

Process for the hydrocarboxylation of ethylenically... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the hydrocarboxylation of ethylenically..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the hydrocarboxylation of ethylenically... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2809303