The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2006
Filed:
May. 11, 2001
Carlo Fumagalli, Albano Sant'Alessandro, IT;
Francesco Minisci, Milan, IT;
Roberto Pirola, Dalmine, IT;
Carlo Fumagalli, Albano Sant'Alessandro, IT;
Francesco Minisci, Milan, IT;
Roberto Pirola, Dalmine, IT;
Lonza S.p.A., Scanzorosciate, IT;
Abstract
Aliphatic carboxylic acids of formulae (Ib) R—COOH(Ia) and R—COOH wherein Ris tertiary C-alkyl and Rtogether are —(CH)— with n=3 to 10, are produced by oxidizing an aliphatic or alicyclic ketone of the formula (II):wherein Rand Rare 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.