| 摘要 |
Compounds corresponding to the formula WHEREIN X and Y are independently oxygen or sulfur, R1 is lower alkyl, lower alkoxy, lower alkylthio, R2 is lower alkyl, lower alkoxy, lower alkylthio, chloro lower alkyl, carbethoxy methylthio, allylthio, chloro-phenylthio, nitrobenzyloxy, phenyl or substituted phenoxy in which said substituents are nitro, cyano, methylthio, chloro or tert.-butyl; R3 is lower alkyl, benzyl, phenyl, lower alkoxyalkyl, alkenyl, chloroalkenyl or 2-propynyl; IN WHICH R4 is hydrogen, lower alkyl, cyclohexyl or vinyl, R5, R6 and R7 are independently hydrogen or lower alkyl; provided that when Q is -CH2CH2CH2- then R3 is other than benzyl. The above-mentioned compounds are biologically effective as pesticides, especially against insects and acarids, and as herbicides. Representative compounds are: 2-[N-(O,O-dimethylphosphonothiono)-imino]-3-ethyl-5-methyl-1,3-oxazoli dine, 2-[N-(0,0-diethylphosphonothiono)-imino]-3-ethyl-5-methyl-1,3-oxazolid ine, 2-[N-(0,S-dimethylphosphonothiolo)-imino]-3-ethyl-5-methyl-1,3-oxazoli dine, 2-(diethylthiophosphinoimino)-3-methyl oxazolidine, 2-(0,0-dimethylthiophosphorylimino)-3-methyl thiazolidine and 2-(O,O-dimethylthiophos-phoryl-imino)-3-allyl-perhydro-1,3-oxazine. |
