PROCESS FOR THE PRODUCTION OF CARBOXYLIC ACIDS

Title:

PROCESS FOR THE PRODUCTION OF CARBOXYLIC ACIDS

Document Type and Number:

WIPO Patent Application WO2001087815

Kind Code:

A3

Abstract:

Aliphatic carboxylic acids of formulae (Ib) R<1>-COOH(Ia) and R<2>-COOH wherein R<1> is tertiary C4-20-alkyl and R<2> is selected from hydrogen and C1-6-alkyl, or R<1> and R<2> together are -(CH2)n-with n = 3 to 10, are produced by oxidizing an aliphatic or alicyclic ketone of formula (II), wherein R<1> and R<2> are 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.

Inventors:

FUMAGALLI CARLO (IT)
MINISCI FRANCESCO (IT)
PIROLA ROBERTO (IT)

Application Number:

EP0105400W

Publication Date:

April 04, 2002

Filing Date:

May 11, 2001

Export Citation:

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Assignee:

LONZA SPA (IT)
FUMAGALLI CARLO (IT)
MINISCI FRANCESCO (IT)
PIROLA ROBERTO (IT)

International Classes:

C07B61/00; C07C51/245; C07C51/31; C07C53/00; C07C53/128; C07C55/02; C07C55/12; C07C55/14; C07C55/16; C07C55/21; (IPC1-7): C07C51/31; C07C51/245; C07C53/00; C07C53/128; C07C55/02; C07C55/12; C07C55/14; C07C55/16

Foreign References:

GB566110A	1944-12-14
FR2791667A1	2000-10-06
GB1012237A	1965-12-08
GB1026725A	1966-04-20
US3780098A	1973-12-18
FR2541993A1	1984-09-07

Other References:

CHEMICAL ABSTRACTS, vol. 71, no. 1, 7 July 1969, Columbus, Ohio, US; abstract no. 2982, KUSUNOKI, MASAZUMI ET AL: "Dibasic acids from oxidation of cyclohexanone" XP002184034

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