Process for the manufacture of ketones

Details Process for the manufacture of ketones Process for the manufacture of ketones

C - Chemistry, Metallurgy

07

D

260/575, 260/476

C07D 333/16 (2006.01) C07C 45/00 (2006.01) C07C 45/45 (2006.01) C07D 307/12 (2006.01) C07D 307/46 (2006.01) C07D 333/22 (2006.01)

Patent

CA 1125779

Abstract of the disclosure: Ketones are prepared by reacting carboxylic acid hali- des, in particular carboxylic acid chlorides, with alumi- num-alkyl compounds, optionally in the presence of an alu- minum trihalid?, in methylene chloride as the solvent, at a temperature between about 20 and about 100°C, preferably between about 30 and about 60°C, more preferably of about 40°C - which latter is the reflux temperature of the methy- lene chloride -. When operating at a temperature above approximately 40°C, overpressure is applied. The reaction mixture is worked up in usual manner, suitably by decompo- sition with water followed by distillation.

340704

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