Process of decomposition of a complex of ortho-benzoyl benzoic a

Details Process of decomposition of a complex of ortho-benzoyl benzoic a Process of decomposition of a complex of ortho-benzoyl benzoic a

1983-08-17

1985-01-29

Straub, Gary P.

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

Organic compounds

Carboxylic acids and salts thereof

203 34, 203 67, 423293, 423483, 560 52, C07C 5976

Patent

active

044967608

ABSTRACT:
A process for the decomposition of complexes of ortho-benzoyl benzoic acids, hydrogen fluoride, and boron trifluoride, whether or not the ortho-benzoyl benzoic acid is substituted, is disclosed wherein the ortho-benzoyl benzoic acid is obtained separately from the hydrogen fluoride and boron trifluoride. This process is characterized in that the complex is treated with an inert solvent at a temperature of at least 20.degree. C., in a distillation column having at least about 8 theoretical plates whereby the solvent reflux is operated at a rate equal to about 5 to about 40 times the weight of the feed delivery rate of the column.
The process of the present invention also makes it possible to recover hydrogen fluoride and boron trifluoride for reuse as catalysts in the synthesis of ortho-benzoyl benzoic acid without causing decomposition of the acid.

REFERENCES:
patent: 2174118 (1939-09-01), Calcott
patent: 2386798 (1945-10-01), Hughes
patent: 2468681 (1949-04-01), McBride
patent: 2534017 (1950-01-01), Gresham et al.
patent: 3108131 (1963-10-01), Cohen et al.
patent: 3110724 (1963-11-01), Woodbridge et al.
patent: 3745093 (1973-07-01), Lee
patent: 3988424 (1976-10-01), Fujiyama et al.
patent: 4318854 (1982-03-01), Trybulski
patent: 4379092 (1983-04-01), Devic
Charles W. Deane, "The Correlation of Reaction Rates with Acidity Function", J. Am. Chem. Soc., Feb. 1945, pp. 331, vol. 67.
Paul R. Jones, "Ring Chain Tautomerism", Chem. Reviews, vol. 63, 1963, p. 480.

Affiliated with

Also associated with

Rating

Process of decomposition of a complex of ortho-benzoyl benzoic a 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 of decomposition of a complex of ortho-benzoyl benzoic a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of decomposition of a complex of ortho-benzoyl benzoic a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-507611