| 摘要 |
New insecticidal phosphoric esters. Cpds. are of formula R1OP(O)(OR2)-O-C(CH2-Hal)-OR3 where hal is Cl or Br; R1 and R2 are same or diff. 1-4C alkyl, R3 is aryl esp. phenyl or naphthyl, opt. substd. by halogen-1-4C alkyl, 1-4C alkoxy, 1-4C alkylthio, 1-4C alkylsulphinyl, 1-4C alkylsulphonyl, NO2, CF3, CN,SCN, COO (1-4C alkyl) or -CO(1-4C alkyl). Prepd. by reacting (hal)2CHCOOR3 with R1O-P(OR2)-OR4where R4 is 1-4C alkyl. Esp. effective against insects, nematodes, Acarids, bateria, and phytopathogenic fungi. |
