Novel 3-(phosphoryloxy) or (phosphonyloxy)-thiophenes of the formula ##STR1## wherein R is alkyl of 1 to 4 carbon atoms, R.sub.1 is selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms and ##STR2## wherein R' and R" are individually selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R.sub.2 is selected from the group consisting of cyano, alkoxy carbonyl of 2 to 4 carbon atoms and ##STR3## wherein Z is selected from the group consisting of phenyl and alkyl of 1 to 4 carbon atoms, R.sub.3 is selected from the group consisting of alkyl of 1 to 6 carbon atoms, alkoxy of 1 to 6 carbon atoms, alkylthio of 1 to 6 carbon atoms, phenyl, morpholino, piperidinyl and alkoxy carbonyl of 2 to 4 carbon atoms and X is selected from the group consisting of oxygen and sulfur having pesticidal properties and their preparation.
式为##STR1##的新型3-(
磷酸酯氧基)或(
膦酸酯氧基)
噻吩,其中R是1至4个碳原子的烷基,R.sub.1选择自由基,包括1至4个碳原子的烷基,1至4个碳原子的烷氧基和##STR2##其中R'和R"各自选择自由基,包括氢和1至4个碳原子的烷基,R.sub.2选择自由基,包括
氰基,2至4个碳原子的烷氧基和##STR3##其中Z选择自由基,包括苯基和1至4个碳原子的烷基,R.sub.3选择自由基,包括1至6个碳原子的烷基,1至6个碳原子的烷氧基,1至6个碳原子的烷
硫基,苯环,
吗啡环,
哌啶环和2至4个碳原子的烷氧基,X选择自由基,包括具有
杀虫剂特性的氧和
硫,以及它们的制备。