| abstract |
NEW MATERIAL:A compound expressed by formula I [R is 1W6C alkyl; A is halogen, 1W4C alkyl and alkoxy, etc.; Y is 0 or S; R 1 and R 2 are H or 1W4C alkyl; B is formula II (R 3 and R 4 are same as R 1 and R 2 ), m is 0 or 1; R 6 is halogen, 1W4C alkyl and alkoxy, etc.; n is 0W4; Y is formula V (R 7 is same as R 1 and R 2 ), formula VI (R 8 is same as R 7 ), formula VII, etc.; Q is phenyl, pyridyl, pyridazyl, etc.]. n EXAMPLE: 2-tert-Butyl-4-chloro-5-{4-[1-(4-chlorophenyl)ethyloxy]benzylthio}-3(2H)- pyridazinone. n USE: An agricultural and horticultural insecticide, acaricide, nematocide and expellent against mites parasitic on animals. n PREPARATION: A compound expressed by formula III (X 1 is halogen, OH or SH) is reacted with a compound expressed by formula IV (X 2 is X 1 ; X 2 is OH or SH when X 1 is halogen and X 2 is halogen when X 1 is OH or SH) in the presence of a hydrogen halide adsorbent to afford the compound expressed by formula I. n COPYRIGHT: (C)1988,JPO&Japio |