PROCESS FOR PREPARATION OF 4-ALKANE-ARYL-BENZYLETHERS

The process is characterised in that 4-alkanoylaryl benzyl ethers of the general formula I where the variables have the following meaning: R is hydrogen, halogen, cyano; alkyl, alkoxy; X is CH2, CH-CH3, CH-CH2-CH3, CH-OCH3, N-OCH3; Y is oxygen, sulphur, a direct bond or nitrogen; m is 0, 1, 2 or 3;...

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Bibliographic Details
Main Authors MUELLER,BERND, DOETZER,REINHARD, SIEGEL,WOLFGANG, GRAMMENOS,WASSILIOS, OBERDORF,KLAUS, SAUTER,HUBERT
Format Patent
LanguageEnglish
Published 29.05.1995
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The process is characterised in that 4-alkanoylaryl benzyl ethers of the general formula I where the variables have the following meaning: R is hydrogen, halogen, cyano; alkyl, alkoxy; X is CH2, CH-CH3, CH-CH2-CH3, CH-OCH3, N-OCH3; Y is oxygen, sulphur, a direct bond or nitrogen; m is 0, 1, 2 or 3; R is hydrogen; alkyl, alkenyl, alkynyl, alkoxy; R is cyano, halogen, alkyl, alkoxy, haloalkyl; R is alkyl, haloalkyl; cycloalkyl; or an optionally substituted mono- to trinuclear aromatic system, are prepared by reacting an aryl benzyl ether of the general formula II where X, Y, R, R , R and m have the abovementioned meaning, with a carboxylic acid halide or with a carboxylic anhydride or with a carboxylic - sulphonic anhydride in the presence of an acid and optionally in the presence of a diluent.
Bibliography:Application Number: HU19940001118