O-Alkyl-O-(2-carbalkoxy-2-alkoxy-vinyl)-(thiono)(thiol) phosphoric (phosphonic) acid esters of the formula ##STR1## in which R, R.sub.2 and R.sub.3 each independently is alkyl with 1 to 6 carbon atoms, R.sub.1 is alkyl with 1 to 4 carbon atoms, alkylthio with 1 to 6 carbon atoms, or phenyl, and X is oxygen or sulfur, Which possess insecticidal, acaricidal and nematicidal properties.
该化合物的中文翻译为:公式为##STR1##的O-烷基-O-(2-羧烷氧基-2-烷氧基-
乙烯基)-(
硫代)(
硫)
磷酸(
膦酸)酯,其中R,R.sub.2和R.sub.3各自独立地为1至6个碳原子的烷基,R.sub.1为1至4个碳原子的烷基,1至6个碳原子的烷基
硫或苯基,X为氧或
硫。该化合物具有杀虫,杀螨和杀线虫的特性。