| 摘要 |
1366374 Pesticidal vinyl derivatives of phosphorus acids STAUFFER CHEMICAL CO 20 Sept 1971 [21 Sept 1970] 43695/71 Heading C2P Novel compounds of Formula I where X is sulphur; R is alkyl, haloalkyl, alkoxy, alkylthio or aryl; R 1 is alkylthioalkylthio, alkylthio, alkylthioalkylamino, mono- or dialkylamino, cyanoalkylthio, carbalkoxymethylthio, N-alkylcarbamylmethylthio, alkoxy, alkoxysubstituted alkylamino, alkenylamino, aralkylthio, alkynylthio, amino, arylthio, substituted phenoxy, halogenated arylthio, halogenated aralkylthio, alkyloxazolidinylimino, ketoximino, arylamino, cycloalkylamino, aralkylamino, furfurylamino, N-alkylfurfurylamino, alkenyloxy or a radical derived from a saturated 5-membered ring heterocycle, provided that when R is alkoxy, R 1 is other than alkoxy; and R 2 is aryl or alkyl, and also provided that when R is C 1-4 alkoxy and R 1 is C 1-4 alkylamino, R 2 is other than methyl, may be prepared by reacting a phosphono or phosphorodichloridate or a compound RPS 2 or a dimer thereof with a betaketo ester and reacting the product with an appropriate nucleophilic reagent. The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredients in conventional pesticidal compositions. |
