Process for preparing phenoxybenzoic acids

Details Process for preparing phenoxybenzoic acids Process for preparing phenoxybenzoic acids

1978-08-04

1982-04-06

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

562416, 260455R, 2605026, 564139, 564171, C07C 6976, C07C 51265, C07C15311, C07C10376

Patent

active

043236928

ABSTRACT:
This process relates to the oxidation of phenoxytoluenes to phenoxybenzoic acids utilizing a hydrogen peroxide activated, bromide promoted cobalt catalyst which can be performed at atmospheric pressure and at moderate temperatures. These phenoxybenzoic acids can then be esterified and selectively nitrated to give the corresponding 2-nitro-5-(substituted)phenoxybenzoic acid esters. Alternatively the acids can be nitrated and then esterified.

REFERENCES:
patent: 2245528 (1941-06-01), Loder
patent: 2992271 (1961-07-01), Hay
patent: 3139452 (1964-06-01), Hay
patent: 3519684 (1970-07-01), Witt et al.
patent: 3665030 (1972-05-01), d'Ostrowick et al.
patent: 3708531 (1973-01-01), Croce et al.
patent: 3725471 (1973-04-01), Onopchenko et al.
patent: 3969405 (1976-07-01), d'Ostrowick et al.
patent: 4031131 (1977-06-01), Johnson
Hay, A. S. et al. "Autooxidation Reactions Catalyzed by Cobalt Acetate Bromide," Canadian Journal of Chemistry, (1965) 43(5) pp. 1306-1317 (See Chemical Abstracts 63 (1965) 553 bc.).

Affiliated with

Also associated with

Rating

Process for preparing phenoxybenzoic acids 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 preparing phenoxybenzoic acids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing phenoxybenzoic acids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-593617