| 摘要 |
NEW MATERIAL:A compound shown by formula I {R is alkyl; A is alkyl or halogen; X is O or S; R<1> and R<2> are H or alkyl; B is CH=CH, N=CH, N=N, S, O or NR<3> (R<3> is H or alkyl); Y is halogen, alkyl alkoxy, NO2, CN, group shown by formula II (Z is halogen, alkyl, NO2, etc.; l is 0-6), -O-W [W is group shown by formula III (R<4> R<6> are H or alkyl; R<7> is H, alkyl, etc.; R<3> is alkyl, alkenyl, etc.; E is O, S SO, etc.)], etc.; n is 1-3; at least one of Y is -O-W}. EXAMPLE:2-t-Butyl-4-chloro-5-[4-(2-ethoxyethoxy)-benzyloxy]-3(2H)-pyri dazinone. USE:An insecticide, an acaricide, a nematocide, a fungicide and an expellent of mites living on animals. PREPARATION:A compound shown by formula IV is reacted with a compound shown by formula V (one of X<1> and X<2> is halogen and the other is OH or SH) to give a compound shown by formula I. |
