Production of carboxylic acids

Details Production of carboxylic acids Production of carboxylic acids

C - Chemistry, Metallurgy

07

C

260/529.8

C07C 51/09 (2006.01) C07C 51/353 (2006.01) C07C 53/08 (2006.01) C07C 53/122 (2006.01)

Patent

CA 1225657

5617(2) ABSTRACT OF THE DISCLOSURE PRODUCTION OF CARBOXYLIC ACIDS A carboxylic acid of formula RCO2H for example acetic acid is prepared from a formate ester of formula HCO2R for example methyl formate by heating the ester at elevated temperature with an iridium catalyst, a halide promoter and a strong acid. The strong acid is one having a pKa of not greater than 0 in aqueous media for example a sulphonic acid. Addition of the strong acid to the reaction mixture causes an increase in the rate of conversion of formate ester to carboxylic acid.

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