2-Arylpropyl ether or thioether derivatives and insecticidal and acaricidal agents containing said derivatives

A 2-arylpropyl ether or thioether derivative represented by the following formula (I):

• ##STR243## wherein Ar is represented by the following formula (IV):
• ##STR244## wherein R.sup.2 stands for a hydrogen or halogen atom, a lower alkyl or lower haloalkyl or lower alkoxy or lower haloalkoxy or methylenedioxy or lower alkylthio or nitrile or nitro group, and p is an integer of from 1 to 5, with the proviso that when p is 2 or more, groups R.sup.2 may be the same or different, 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):
• ##STR245## or the following formula (III):
• ##STR246## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 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 R.sup.1 may be the same or different.

An insecticidal and acaricidal composition, comprising a carrier or vehicle and, as an active ingredient, an insecticidally or acaricidally effective amount of at least one member selected from the group consisting of 2-arylpropyl ether and thioether derivatives represented by the following formula (I):

• ##STR247## wherein Ar stands for an aryl group selected from the group consisting of phenyl, naphthyl, anthryl and phenanthryl groups, which may be unsubstituted or substituted with the same or different substituents selected from the group consisting of a halogen atom;
• an alkyl, haloalkyl, phenyl, alkoxy, haloalkoxy, cycloalkoxy, phenoxy, alkenyl, haloalkenyl, alkynyl, haloalkynyl, alkoxyalkyl, alkenyloxy, haloalkenyloxy, alkynyloxy, haloalkynyloxy, alkylthio, haloalkylthio, alkylsulfoxyl, acyl, alkoxyalkoxy, alkenylthio, alkoxycarbonyl, haloalkoxycarbonyl, alkynyloxycarbonyl, alkenyloxycarbonyl, nitro, nitrile, haloalkenylthio, methylenedioxy, 3,4-difluoromethylenedioxy, 3,4-difluoroethylenedioxy, or 3,4-trifluoroethylenedioxy group;
• and a polymethylene group having 3 to 5 carbon atoms, 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):
• ##STR248## or the following formula (III):
• ##STR249## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 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 R.sup.1 may be the same or different.

An insecticidal and acaricidal composition, comprising a carrier or vehicle and, as an active ingredient, an insecticidally or acaricidally effective amount of at least one member selected from the group consisting of 2-arylpropyl ether and thioether derivatives represented by the following formula (I):

• ##STR250## wherein Ar stands for an aryl group selected from the group consisting of phenyl and naphthyl groups which may be unsubstituted or substituted with the same or different substituents selected from the group consisting of a halogen atom and an alkyl, haloalkyl, phenyl, alkoxy, haloalkoxy, cycloalkoxy, phenoxy, alkenyl, haloalkenyl, alkynyl, haloalkynyl, alkoxyalkyl, alkenyloxy, haloalkenyloxy, alkynyloxy, haloalkynyloxy, alkylthio, haloalkylthio, acyl, alkoxyalkoxy, alkenylthio, alkoxycarbonyl, haloalkoxycarbonyl, alkynyloxycarbonyl, alkenyloxycarbonyl, nitro, nitrile, haloalkenylthio, or methenedioxy 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):
• ##STR251## or the following formula (III):
• ##STR252## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 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 R.sup.1 may be the same or different.

An insecticidal and acaricidal composition, comprising a carrier or vehicle and, as an active ingredient, an insecticidally or acaricidally effective amount of at least one member selected from the group consisting of 2-arylpropyl ether and thioether derivatives represented by the following formula (I):

• ##STR253## wherein Ar is represented by the following formula (IV):
• ##STR254## wherein R.sup.2 stands for a hydrogen or halogen atom, a lower alkyl or lower haloalkyl or lower alkoxy or lower haloalkoxy or methylenedioxy or lower alkylthio or nitrile or nitro group, and p is an integer of from 1 to 5, with the proviso that when p is 2 or more, groups R.sup.2 may be the same or different, 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):
• ##STR255## or the following formula (III):
• ##STR256## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 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 R.sup.1 may be the same or different.