Process for the preparation of carboxylic acid from aldehydes

C - Chemistry – Metallurgy – 07 – C

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260/507, 260/528

C07C 53/126 (2006.01) C07C 51/235 (2006.01)

Patent

CA 1139783

ABSTRACT OF THE DISCLOSURE A process for preparing carboxylic acids by the oxidative conversion of the corresponding aldehydes comprises oxidizing the aldehydes in the presence of A catalyst comprising the anion [Fe(CN)5H2O]-3. The catalyst may be selected from [Fe(CN)5H2O]-3, compounds that form [Fe(CN5H2O]-3 under the reaction conditions, and their salts. The catalyst is useful for the oxidation of aldehydes with oxygen or oxygen-containing gases. The present process permits the use of lower reaction times and temperatures, and reduces the formation of undesirable reaction by-products.

357436

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