NOUVEAUX ETHERS-OXYDES ET SULFURES ARYL-2 PROPYLIQUES, PROCEDE DE LEUR PREPARATION, AGENTS INSECTICIDES ET ACARICIDES LES CONTENANT ET PROCEDE DE LUTTE CONTRE LES INSECTES ET LES ACARIENS UTILISANT CES NOUVEAUX COMPOSES

NOUVEAUX ETHERS-OXYDES ET SULFURES ARYL-2 PROPYLIQUES, PROCEDE DE LEUR PREPARATION, AGENTS INSECTICIDES ET ACARICIDES LES CONTENANT ET PROCEDE DE LUTTE CONTRE LES INSECTES ET LES ACARIENS UTILISANT CES AGENTS; LES NOUVEAUX COMPOSES DE L'INVENTION REPONDENT A LA FORMULE GENERALE:(CF DESSIN DANS BOPI)OU AR REPRESENTE UN RADICAL ARYLE, R REPRESENTE UN RADICAL METHYLE OU ETHYLE, Y REPRESENTE UN ATOME D'OXYGENE OU DE SOUFRE ET B REPRESENTE:(CF DESSIN DANS BOPI)OU Z REPRESENTE UN ATOME D'OXYGENE OU DE SOUFRE OU UN RADICAL CARBONYLE OU METHYLENE, R REPRESENTE UN ATOME D'HYDROGENE OU UN RADICAL HALOGENO, ALKYLE INFERIEUR OU ALCOXY INFERIEUR ET N EST UN NOMBRE ENTIER DE 1 A 5, SOUS RESERVE QUE LORSQUE N EST EGAL OU SUPERIEUR A 2, LES SYMBOLES R PEUVENT ETRE IDENTIQUES OU DIFFERENTS; CES COMPOSES ONT D'EXCELLENTES ACTIVITES INSECTICIDES ET ACARICIDES ET UNE TRES FAIBLE TOXICITE. 2-Arylpropyl ether or thioether derivatives represented by the following general formula [I]: [I] wherein Ar stands for an aryl group, R stands for a methyl or ethyl group, Y stands for an oxygen or sulfur atom, and B stands for a group represented by the following formula [II]: [II] or the following general formula [III]: [III] wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R1 stands for a hydrogen or halogen atom or a lower alkyl group or a lower alkoxy group, and n is an integer of from 1 to 5 with the proviso that when n is 2 or more, the groups R1 may be the same or different, are produced by reacting a compound represented by the following formula (V): (V) with a compound represented by the following formula (VI): B-CH2-D (VI) wherein Ar, R and B are defined above, A is a halogen atom and D is Y-H in which Y is as defined above, in the presence of a base in dimethylsulfoxide or sulfolane. The compounds thus prepared have excellent insecticidal and acaricidal activities while the toxicity of these compounds are very low.