Oxidation of aldehydes to carboxylic acids

Details Oxidation of aldehydes to carboxylic acids Oxidation of aldehydes to carboxylic acids

C - Chemistry, Metallurgy

07

C

C07C 53/126 (2006.01) C07B 33/00 (2006.01) C07C 51/235 (2006.01) C07C 53/124 (2006.01) C07C 57/30 (2006.01) C07C 59/66 (2006.01)

Patent

CA 2234003

This invention relates to a process for preparing carboxylic acids by oxidising an aldehyde with molecular oxygen or a gas containing molecular oxygen in the presence of an amine and/or amine N-oxide promoter selected from the group consisting of a substituted or unsubstituted alkyl amine, alkyl amine N-oxide, aromatic amine, aromatic amine N-oxide, heterocyclic amine, heterocyclic amine N-oxide and mixtures thereof, to produce the carboxylic acid. Such carboxylic acids have utility for example as chemical intermediates.

L'invention concerne un procédé permettant de fabriquer des acides carboxyliques en oxydant un aldéhyde par de l'oxygène moléculaire ou un gaz contenant de l'oxygène moléculaire en présence d'une amine et/ou d'un promoteur de N-oxyde amine choisi dans le groupe comprenant alkylamine, N-oxyde alkylamine, amine aromatique, N-oxyde amine aromatique, amine hétérocyclique, N-oxyde amine hétérocyclique, substituée ou non substituée, et des mélanges de celles-ci, afin de produire l'acide carboxylique. Ces acides carboxyliques sont intéressants, par exemple, comme intermédiaires chimiques.

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