New cyclic enamine ketone derivatives useful for controlling pests, especially insects

摘要

Cyclic enamine ketone derivatives (I) are new. Cyclic enamine ketone derivatives of formula (I) are new. A : Het1 or Het2; Het1 : pyrimidinyl, pyrazolyl, thienyl, oxazolyl, isoxazolyl, 1,2,4-oxadiazolyl, isothiazolyl, 1,2,4-triazolyl or 1,2,5-thiadiazolyl, all optionally substituted with F, Cl, Br, CN, NO 2, 1-4C alkyl, 1-3C alkylthio or 1-3C alkylsulfonyl, where alkyl is optionally substituted with F and/or Cl; Het2 : 5-Y-6-X-3-pyridyl; X : halo, alkyl or haloalkyl; Y' : halo, alkyl, haloalkyl, haloalkoxy, N 3or CN; B' : O, S or CH 2; R 1> : H, alkyl, alkenyl, alkynyl, cycloalkyl or alkoxy; R 2> : H or halo; R 3> : H or alkyl. [Image] ACTIVITY : Insecticide. In a test against Myzus persicae, 4-(N-(5,6-dichloro-3-pyridylmethyl)-N-methylamino)-2(5H)-furanone gave 100% kill after 5 days at a concentration of 20 ppm. MECHANISM OF ACTION : None given.