INSECTICIDES, ACARICIDES AND NEMATODICIDES EFFICIENTS O-TRIAZOLYL- (THIONO) -PHOSPHOR (PHOSPHON)-ACID RESIDENTS OR -ESTERAMIDES FOR USE IN PLANT PROTECTION AND OTHER TECHNOLOGY

摘要

1454490 Phosphorus-containing triazole derivatives BAYER AG 15 April 1975 [24 April 1974 18 May 1974] 15435/75 Headings C2P and C2C The invention comprises compounds of the formula wherein R is C 1 -C 2 alkyl, RSP1/SP is alkyl, alkylamino or alkoxy each with 1 to 6 carbon atoms, or is phenyl, RSP11/SP is alkenyl with up to 6 carbon atoms and X is O or S. They are obtained by reacting a compound (III) with a halide: (RO)(RSP1/SP)P(X)Hal wherein Hal is halogen, the compound III being used as such in the presence of an acid acceptor, or in the form of an alkali metal-, alkaline earth metal-, or -ammonium salt. The products have pesticidal (including nematicidal) properties and may be used as active ingredients in conventional pesticidal compositions. The triazole derivatives of the above Formula (III) are obtained by reacting a halogenocarbonic acid alkyl ester with KCNS and then with phenylhydrazone to give an intermediate product of the formula which is then reacted with an appropriate halogenoalkene in the presence of an alcoholate. A detailed example is given for the preparation of the compound IV which is isolated and then converted to compounds of Formula III in which RSP11/SP is -CH 2 -C(CH 3 )=CH 2 , and -H 2 -CH=CH-CH 3 respectively.