Insecticide and acaricide 1-di-methyl:carbamoyl-1,2,4-triazole derivs. - prepd. by reaction of a 3-alkylthio-alkylthio-1,2,4-triazole with a di-methyl-carbamoyl halide

摘要

New 1,2,4-triazole derivs. are cpds. of formula (Ia) and (Ib). In the formulae, R1 is 1-4C alkyl; R2 is H or CH3; and n is 0 or 1. Also new and claimed are intermediates of formula (II). Cpds. (I) are prepd. by reaction of cpd. (II) with halogen -CO-N(CH3)2 in the presence of base. (Ia, Ib) are pesticides with insecticidal and acaricidal activity, and are useful in plant protection. Some cpds. (Ia, Ib) show activity in tests for systemic activity.