Process for acyloxylating side chains of alkyl-substituted...

Details Process for acyloxylating side chains of alkyl-substituted... Process for acyloxylating side chains of alkyl-substituted...

C - Chemistry, Metallurgy

07

C

C07C 69/16 (2006.01) C07C 51/23 (2006.01) C07C 57/44 (2006.01) C07C 67/00 (2006.01) C07C 67/39 (2006.01)

Patent

CA 2270939

A process for acyloxylating side chains of alkyl-substituted aromatic compounds, wherein an alkyl-substituted aromatic compound is efficiently reacted with a carboxylic acid and/or a carboxylic acid anhydride in the presence of an oxygen-containing gas and a catalyst selected from among cobalt, cerium and manganese; and a process for producing cinnamic acids by reacting benzylidene diacetates in the presence of a basic catalyst.

L'invention concerne un procédé pour acyloxylater des chaînes latérales de composés aromatiques alkyle-substitués, selon lequel un composé aromatique alkyle-substituté peut réagir avec efficacité avec un acide carboxylique et/ou un anhydride d'acide carboxylique en présence d'un gaz contenant de l'oxygène et un catalyseur sélectionné parmi du cobalt, du cérium et du manganèse. L'invention traite aussi d'un procédé de production d'acides cinamiques consistant à faire réagir des diacétates de benzylidène en présence d'un catalyseur de base.

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