Suppression of diglycol ether ester in chromium (III) catalyzed

Details Suppression of diglycol ether ester in chromium (III) catalyzed Suppression of diglycol ether ester in chromium (III) catalyzed

1971-04-07

1981-06-02

Myers, Jane S.

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

Organic compounds

Carboxylic acid esters

560 80, 560100, 560112, C07C 6726

Patent

active

042713129

ABSTRACT:
Chromium (III) catalysis of the reaction between ethylene oxides (ethylene oxide and 1,2-propylene oxide) and aromatic carboxylic acids at temperatures in the range from 50.degree. to 180.degree. C. are rapid but produce excessive amounts of diglycol ether ester (2-hydroxyethoxyethanol or 2-hydroxy-2-methylethoxy 2-methylethanol) which is present as the diglycol ether ester of the aromatic carboxylic acid and is a contaminent hard to remove from the desired 2-hydroxyethyl ester of the aromatic carboxylic acid. The use of an amine, in such ethylene oxide reaction with aromatic carboxylic acid suppresses the formation of diglycol ether and increases the conversion of aromatic carboxylic acid to the desired 2-hydroxyethyl ester thereof.

REFERENCES:
patent: 3632854 (1972-01-01), Randall
patent: 3641112 (1972-02-01), Ichikawa et al.
patent: 3644293 (1972-02-01), Fielder
patent: 3873602 (1975-03-01), Katzakian et al.
patent: 4069242 (1978-01-01), Gurgiolo

Affiliated with

Also associated with

Rating

Suppression of diglycol ether ester in chromium (III) catalyzed does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Suppression of diglycol ether ester in chromium (III) catalyzed , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suppression of diglycol ether ester in chromium (III) catalyzed will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1866320