Production of carboxylic acids

Details Production of carboxylic acids Production of carboxylic acids

1993-07-26

1994-06-14

Dees, Jose G.

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

Organic compounds

Carboxylic acids and salts thereof

562546, 562590, 562595, C07C 5116, C07C 5702

Patent

active

053211588

ABSTRACT:
An improved process for the production of carboxylic acids and dicarboxylic acids by the catalytic oxidation of olefins and vicinal diols by hydrogen peroxide is provided. The process employs a rhenium (VII) catalyst, and a solvent comprising a mixture of a carboxylic acid or anhydride having 2 or more carbon atoms and a high boiling cyclic or acyclic ether. Particularly suitable carboxylic acids or anhydrides include acetic acid, propionic acid and acetic anhydride. Particularly suitable high-boiling ethers include 1,4-dioxane and diglyme.

REFERENCES:
patent: 3646130 (1972-02-01), Parshall
Warwel, et al., "Selective Oxidations in Petrochemistry", DGMK-Conference, Sep. 16-18, 1992 in Goslar/Germany.
Haines, A. H., "Formation of Carboxylic Acids", Methods for the Oxidation of Organic Compounds, pp. 146-152.
Zaidman, et al., "Double Bond Oxidation of Unsaturated Fatty Acids", JAOCS, vol. 65, No. 4 (Apr. 1988), pp. 611-615.

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