Patent ID: 6476251
Filing Date: 2002-11-05
Classification: C07D

Abstract:
A process for preparing a compound of the formula (I) whereinX represents alkyl, halogen, alkoxy or halogenoalkyl, Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl, Z represents alkyl, halogen or alkoxy, n represents a number from 0 to 3, or the radicals X and Z together with the phenyl radical to which they are attached form a naphthalene radical of the formula in which Y is as defined above, A represents an optionally substituted radical selected from the group consisting of alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl and alkylthioalkyl, represents saturated or unsaturated and optionally substituted cycloalkyl or heterocyclyl or represents optionally halogen-, alkyl-, halogenoalkyl-, alkoxy-, halogenoalkoxy-, cyano- or nitro-substituted aryl, arylalkyl or hetaryl, B represents alkyl or alkoxyalkyl or A and B together with the carbon atom to which they are attached represent a saturated or unsaturated, optionally substituted carbocycle or heterocycle, R1 represents optionally halogen-substituted alkyl, alkoxy, alkenyl, alkenyloxy, alkoxyalkyl, alkylthioalkyl, polyalkoxyalkyl or optionally substituted cycloalkyl which may be interrupted by heteroatoms, represents optionally substituted phenyl or phenoxy, optionally substituted phenylalkyl or phenylalkyloxy, substituted hetaryl, substituted phenoxyalkyl or substituted hetaryloxyalkyl, said process comprising deprotonating with a base a compound of the formula (II) whereinX, Y, Z, n, A and B are as defined above and R8 represents alkyl; reacting the deprotonated compound with a compound of the formula (III) whereinR1 is as defined above and Hal represents halogen; and collecting the reaction product.