ORGANOPHOSPHORUS COMPOUND, PROCESS FOR ITS PREPARATION AND INSECTICIDAL, MITICIDAL OR NEMATICIDAL COMPOSITION CONTAINING IT

摘要

Organophosphorus cpds.of formula (I) are X1,X3=H, or alkyl or alkoxy (both opt. substd. by halogen, alkxoy, alkylthio, or PhO or PhS both opt. halogenated), COOH alkoxycarbonyl or Ph(opt. X21,X4=H or alkyl. or X2+X3 =alkylene; Y1,Y2,X=O or S R1, R2 = alkyl. Pref. X1=X3=H or 1-6C alkyl; X2=X4=H; Y2=Z=O; R1=nPr, iBu or SBu; R2=Me or Et.