Preparation of carboxylic acid anhydrides

Details Preparation of carboxylic acid anhydrides Preparation of carboxylic acid anhydrides

1983-03-23

1985-02-19

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260398, 260405, 260544A, C07C 5156

Patent

active

045004730

ABSTRACT:
Carboxylic acid anhydrides of the formula RCO--O--COR', e.g., acetic anhydride, are facilely prepared by reacting, in an essentially anhydrous, liquid phase containing an aprotic organic solvent, (i) a compound of the formula RX, (ii) a carboxylate of the formula (R'COO.sup.-).sub.n A.sup.n+, and (iii) carbon monoxide, said reaction being carried out in the presence of a catalytically effective amount of a salt of cobalt tetracarbonyl halide, at a temperature ranging from about 0.degree. to 200.degree. C. and under a pressure which is less than or equal to about 600 bars.

REFERENCES:
patent: 2053233 (1936-09-01), Woodhouse
patent: 2727902 (1955-12-01), Reppe et al.
patent: 3116306 (1963-12-01), Heck
patent: 4353844 (1982-10-01), Gauthier-Lafaye et al.
Clark, N. G., Modern Organic Chemistry, (1964) Oxford Univ. Press, at pp. 217 and 222.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-612590