WHERE R1 IS ALKYL OR ALKOXY EACH HAVING FROM 1 TO 4 CARBON ATOMS OR PHENYL; R2 IS ALKOXY HAVING FROM 1 TO 6 CARBON ATOMS IF R1 IS ALKYL OR PHENYL, AMINO, ALKYLAMINO OR DIALKYLAMINO EACH HAVING FROM 1 TO 6 CARBON ATOMS, OR ALKENYLAMINO HAVING FROM 1 TO 4 CARBON ATOMS; R3 IS HYDROGEN OR ALKYL HAVING FROM 1 TO 4 CARBON ATOMS; R4 IS HYDROGEN, ALKYL HAVING HAVING FROM 1 TO 4 CARBON ATOMS; OR HALOGEN; X IS OXYGEN OR SULFUR; ARE USEFUL PESTICIDES IN THE AGRICULTURAL AND VETERINARY FIELDS.
Abstract:
Mono- and dithiophosphonic acid esters of the formula I in which R is optionally substituted alkyl, cycloalkyl, cycloalkenyl, or optionally substituted phenyl, R' is optionally substituted alkyl, alkenyl, or cycloalkyl, R'' and R''' which are identical or different, are hydrogen, halogen, methyl, methoxy, nitro or trifluoromethyl, and X is oxygen or sulfur, are useful insecticides and acaricides.