Preparation of alpha-cyanobenzyl esters

Details Preparation of alpha-cyanobenzyl esters Preparation of alpha-cyanobenzyl esters

C - Chemistry, Metallurgy

07

C

260/492.3, 260/4

C07C 255/38 (2006.01) B01J 27/08 (2006.01)

Patent

CA 1123002

ABSTRACT A process for the preparation of alpha-cyanobenzyl esters of general formula (I): Image (I) characterized in that a carboxylic acid halide o e general formula (II): A - CO - halide (II) is reacted with an alpha-cyanobenzyl alcohol of general formula (III): Image (III) in the presence of a Lewis acid catalyst, wherein in the general formulae A is an optionally-substituted aralkyl, alkyl or cycloalkyl group containing up to 24 carbon atoms; X is an alkyl, alkenyl, aralkyl or aryloxy group containing up to 10 carbon atoms; n is an integer of 1 to 3; and halide is bromine or chlorine.

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