Preparation of 3,4,6-trifluorophthalic acid

Details Preparation of 3,4,6-trifluorophthalic acid Preparation of 3,4,6-trifluorophthalic acid

1993-06-18

1997-01-21

Owens, Amelia

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

562483, C07D20948

Patent

active

055961045

ABSTRACT:
3,4,6-trifluorophthalic acid is prepared in high yield by reaction of a 3,4,6-trichloro-N-substituted phthalimide with potassium fluoride at temperatures in the range of 200.degree. to 270.degree. C. in the absence of a catalyst to form the corresponding trifluoro-N-substituted phthalimide which, in turn, is hydrolyzed to form the 3,4,6-trifluorophthalic acid.

REFERENCES:
patent: 4374266 (1983-02-01), Fifolt et al.
patent: 4374267 (1983-02-01), Fifolt et al.
patent: 4769493 (1988-09-01), Ito et al.
CA 105: 235968 (1995).
Bergmann et al, J.Chem. Soc., 1194 (1964).
Odinov et al, Zh. org. Khim. (1967), 37, 176.
Islam et al, Indian J. Chem., 16B, Jul. 1978, pp. 593-596.

Affiliated with

Also associated with

Rating

Preparation of 3,4,6-trifluorophthalic acid 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 3,4,6-trifluorophthalic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of 3,4,6-trifluorophthalic acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2325284