Process for the production of carboxylic acids

Details Process for the production of carboxylic acids Process for the production of carboxylic acids

2006-03-14

2006-03-14

Tsang, Cecilia J. (Department: 1625)

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

Organic compounds

Carboxylic acids and salts thereof

C562S543000

Reexamination Certificate

active

07012155

ABSTRACT:
Aliphatic carboxylic acids of formulae (Ib) R1—COOH(Ia) and R2—COOH wherein R1is tertiary C4-20-alkyl and R2together are —(CH2)n— with n=3 to 10, are produced by oxidizing an aliphatic or alicyclic ketone of the formula (II):wherein R1and R2are as defined above, with molecular oxygen in the presence of a soluble manganese (II) compound. The process has a high selectivity and is carried out under very mild conditions. It is especially useful for the production of dicarboxylic acids, such as, adipic acid, from cyclic ketones.

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International Search Report from applicants' corresponding International (PCT) patent application.

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