Phosphoric esters derived from 1,2,4-triazole having an insecticidal, nematocidal and acaricidal action, and their preparation

摘要

1,2,4-triazol-(5)-yl-[thio] phosphates are disclosed having the formula <IMAGE> wherein R1=alkyl with from 1 to 5 carbon atoms; R2=OR1, R1, C6H5, NHR1, N(R1)2; X=O, S R3=H, alkyl with from 1 to 5 carbon atoms, C6H5, benzyl, alkenyl with from 2 to 6 carbon atoms, alkynyl with from 2 to 6 carbon atoms; and R4=vinyl, halovinyl, polyhalovinyl, vinyl substituted with aryl groups, alkyl groups with from 1 to 4 carbon atoms, O-alkyl groups with from 1 to 4 carbon atoms, S-alkyl groups with from 1 to 4 carbon atoms; haloalkyl, acetyl, cyclohexenyl, benzoyl <IMAGE> <IMAGE> OR1, N(R1)2, NHR1], +TR <IMAGE> Also disclosed are 1,2,4-triazole intermediates having the formula <IMAGE> wherein: X, R3 and R4 have the same meanings as indicated above. The phosphate esters are useful in combatting infestations of pests such as orthoptera, aphides, diptera, lepidoptera, coleoptera, acari, nematodes.