GB775085A - Preparations for combating pests - Google Patents

Abstract

A compound of the general formula <FORM:0775085/IV(b)/1> (in which R1 and R2 each represent an alkyl, cycloalkyl, aralkyl, aryl or heterocyclic residue, and may be members of a ring system, and may contain substituents; R4 represents hydrogen, halogen, or has the same meaning as R1; R5 represents hydrogen or the residue -OR1, SR1, -NH2, -NHR1 or -NR1R2, or has the same meaning as R1; X and Y each represent -O-, -S-, -NH-, or -N-R1-; Z represents oxygen or sulphur; and Hal represents halogen) may be prepared by reacting a compound of the general formula <FORM:0775085/IV(b)/2> (in which R3 has the same meaning as R1) with a compound of the general formula <FORM:0775085/IV(b)/3> in molecular proportions. The reactants may be diluted with an inert solvent, e.g. benzene, toluene, ether, dioxane, hexane or benzine. Cooling may be necessary. The reaction may be brought to an end by heating to 50-120 DEG C. The reaction product may be distilled off under reduced pressure. The radicals R1, R2 and R3 may be methyl, ethyl, propyl, isopropyl, butyl, hexyl, 2-ethylbutyl, octyl, 2-butyloctyl, lauryl, octadecyl, allyl, and 2-chloroethyl and may contain thiocyanic acid, cyano or ester groups; phenyl, 2- and 4-chlorophenyl, 2 : 4-dichlorophenyl, 4-methoxyphenyl, 4-nitrophenyl, naphthyl and 4-diphenyl; benzyl; cyclohexyl; or tetrahydrofurfuryl. The phosphorus-containing reactant may be trimethyl, triethyl, tripropyl, diethyl - lauryl, tri - (2 - chlorethyl), ethyl ethylene glycol, 2 : 4-dichlorophenyl-diethyl, or 4-chlorophenyl-dimethyl phosphite. The other reactant may be dichloracetaldehyde, beutyl-chloral, bromal or chloral; 1 : 1-dichloracetone, 1 : 1 : 3 - trichloracetone, 1 : 1 : 1 - trichloracetone, 1 : 1 : 3 : 3 - tetrachloracetone, 1 : 1 : 3 : 3 - tetrachloracetone, penta- or hexa-chloracetone, o - trichloracetophenone, 4 - chloro - o - trichloracetophenone or 4-methyl-o - trichloracetophenone; trichloracetic acid ethyl ester; and trichloracetic acid dimethylamide. Specifications 723,633, 744,360 and 747,824 are referred to.ALSO:A pesticide comprises a compound of the general formula:-<FORM:0775085/VI/1> (in which R1 and R2 each represent an alkyl, cycloakyl, aralkyl, aryl or heterocyclic residue, and may be members of a ring system and may contain substituents; R4 represents hydrogen, halogen, or has the same meaning as R1; R5 represents hydorgen or the residue - OR1, - SR1, - NH2, -NHR1 or -NR1R2, or has the same meaning as R1; X and Y each represents - O -, -S-, - NH-, or - N - R1-; Z represents oxygen or sulphur; and Hal represents halogen), in admixture with a solid diluent, or with a liquid diluent and an emulsifying agent. For compounds specified (see Group IV(b). Solid diluents specified are kaolin, gypsum and bentonite. Liquid diluents specified are alcohol, petroleum, tar distillates, n-buotanol spindle oil, diethylene glycol. The condensation product of tertiary dodecyl mercaptan and ethylene oxide is specified as emulsifying agents. Other ingredients specified are oleic acid, sulphite cellulose waste liquor and cellulose derivatives. Specifications 723,633, 744,360 and 747,824 [all in Group IV(b)] are referred to.