Synergistic production of carboxylic acids from alcohols

Details Synergistic production of carboxylic acids from alcohols Synergistic production of carboxylic acids from alcohols

1990-06-05

1993-04-13

Prescott, Arthur C.

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

Organic compounds

Carboxylic acids and salts thereof

562406, C07C 5112, C07C 5308

Patent

active

052024776

ABSTRACT:
A process for the production of an aliphatic carboxylic acid of the formula RCOOH, wherein R is an alkyl group having from 1 to 5 carbon atoms, comprises the catalytic reaction of an alcohol of formula ROH and carbon monoxide in the presence of a rhodium catalyst, methyl iodide, a high lithium iodide content, a low water content and an organic ester of formula RCO.sub.2 R. The process can optionally be carried out in the presence of hydrogen and/or an organic ligand of formula ER.sup.11.sub.3 where E is nirogen, phosphorus, arsenic, antimony or bismuth and R.sup.11 is an organic moiety.

REFERENCES:
patent: 4733006 (1988-03-01), Singleton et al.
patent: 4792620 (1988-12-01), Paulik et al.
patent: 4994608 (1991-02-01), Smith
patent: 5001259 (1991-03-01), Smith et al.
patent: 5026908 (1991-06-01), Smith
Opposition of Daicel Kogaku Kogyo issued on published Japanese Application No. 54334/1985.
Decisions in Oppositions to EP 0144935 and EP 0144936.

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