Process for the manufacture of ketones

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

1979-11-26

1981-05-05

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

2603478, 568323, 568335, 568407, C07D33316, C07D30712, C07C 4500

Patent

active

042660661

ABSTRACT:
Ketones are prepared by reacting carboxylic acid halides, in particular carboxylic acid chlorides, with aluminum-alkyl compounds, optionally in the presence of an aluminum trihalide, in methylene chloride as the solvent, at a temperature between about 20.degree. and about 100.degree. C., preferably between about 30.degree. and about 60.degree. C., more preferably of about 40.degree. C. which is the reflux temperature of the methylene chloride. When operating at a temperature above approximately 40.degree. C., pressure higher than atmospheric is applied. The reaction mixture is worked up in usual manner, suitably by decomposition with water followed by distillation.

REFERENCES:
Tenside, 4, 167-171 (1967).
Organometallic Chemical Reviews A, pp. 47-136 (1968).
Houben-Weyl, vol. VII/2a, 4th ed., Ketone, Part I, pp. 573-575 (1973).
Chem. Abst., vol. 59, 8640(d) (1963).
Chem. Abst., vol. 59, 8640(e) (1963).
Chem. Abst., vol. 60, 14420(c) (1964).

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