Abstract: A compound of the formula: ##STR1## wherein X is a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.3 alkyl group or a C.sub.1 -C.sub.3 alkoxy group and Y is a hydrogen atom, a halogen atom, a cyano group, a formyl group, an ethylene-dioxymethyl group, a hydroxyl group, a hydroxymethyl group or a group of either one of the formulas: --CH.dbd.N--OR.sup.1, --COOR.sup.2, --CONH--R.sup.2 and --CH(OR.sup.3).sub.2 in which R.sup.1 is a hydrogen atom, a C.sub.1 -C.sub.3 alkyl group, a C.sub.3 -C.sub.5 alkenyl group, a C.sub.3 -C.sub.5 alkynyl group, a halo(C.sub.3 -C.sub.5)alkynyl group or a C.sub.1 -C.sub.3 alkyl group substituted with a phenyl group or a cyano group, R.sup.2 is a hydrogen atom, a C.sub.1 -C.sub.3 alkyl group, a C.sub.3 -C.sub.5 alkenyl group or a C.sub.3 -C.sub.5 alkynyl group and R.sup.3 is a C.sub.1 -C.sub.

Abstract: A compound of the formula: ##STR1## wherein X is a halogen atom and Y is a C.sub.1 -C.sub.4 alkyl group, a C.sub.2 -C.sub.4 alkenyl group, a C.sub.1 -C.sub.3 alkoxy group, a C.sub.3 -C.sub.4 alkenyloxy group, a C.sub.3 -C.sub.4 alkynyloxy group, a C.sub.2 -C.sub.3 alkenyl group substituted with phenyl, a C.sub.3 -C.sub.4 alkenyloxy group substituted with halogen, a C.sub.1 -C.sub.3 alkoxy group substituted with one member selected from the group consisting of halogen, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkanoyl, cyano, hydroxycarbonyl, C.sub.1 -C.sub.3 alkylaminocarbonyl and phenyl, or a group of the formula: --CH.sub.2 O--R.sup.1, --CH.dbd.CH--R.sup.2, --CH.dbd.N--R.sup.3 or --CO--R.sup.4 in which R.sup.1 is a C.sub.1 -C.sub.3 alkyl group, a C.sub.3 -C.sub.4 alkenyl group or a C.sub.3 -C.sub.4 alkynyl group, R.sup.2 is a cyano group, a methoxycarbonyl group or an acetyl group, R.sup.3 is a dimethylamino group or a phenyl group and R.sup.4 is a C.sub.1 -C.sub.