THIOXOTETRAZOLINES

摘要

Novel 1-phenyl-5-thioxo-2-tetrazolines of formula I (I) in which R1 is C1-C8alkyl, C3-C6alkenyl, C3-C6alkynyl, C3-C6cycloalkyl, C5-C6-cycloalkenyl, C1-C4alkyl- or halo-substituted C3-C6cycloalkyl, C1-C4-alkyl- or halo-substituted C5-C6cycloalkenyl, halo-, C1-C4alkoxy- or phenyl-substituted C3-C6alkenyl, halo-, C1-C4alkoxy- or phenyl-substituted C3-C8alkynly, or C1-C8alkyl that is substituted by halogen, C1-C4alkoxy, C1-C4alkylthio, C1-C4alkoxycarbonyl, C3-C6cycloalkyl, phenyl, cyano, hydroxy, halophenyl, C1-C4alkylphenyl or by a heteroaromatic radical. R2 is C1-C6alkyl, C2-C6alkenyl, C2-C6alkynyl, C3-C6cycloalkyl, cyclopentenyl or cyclohexenyl, or is C1-C6alkyl that is substituted by halogen, by C1-C4alkoxy or by C1-C4alkylthio, each of R3 and R4, independently of the other, is hydrogen, halogen, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4alkylthio, C3-C6-cycloalkyl, C2-C4alkenyl, C2-C4alkynyl, C2-C6alkoxyalkyl, C2-C6alkylthioalkyl, C1-C4cyanoalkyl, phenyl-C2-C4alkenyl or phenyl-C2-C4alkynyl, or R3 and R4 together are -CH=CH-CH=CH-, -CH2-CH=CH-, -(CH2)4-, -(CH2)4-, -(CH2)3-, -O-CH2-O-, -O-CH2-CH2-O-, -CH2-O-CH2-, -(CH2)-O-CH2-, -(CH2)2-CH=CH- or -CH2-CH=CH-CH2- bridge, each of which may be substituted by one or two C1-C4alkyl groups, and R5 is hydrogen or a -Z-R6 group in which R6 is phenyl, naphthyl or pyridyl, or is phenyl, naphthyl or pyridyl each of which is substituted by one or two substituents from the group halogen, C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4haloalkyl, C1-C4alkylthio, C1-C4haloalkylthio, di-C1-C4alkylamino, nitro cyano C1-C4alkoxycarbonyl and C1-C4alkylcarbonyl and Z is oxygen, sulfur, a direct bond, -NH+13, -N(C1-C2alkyl)-, -N(CHO-, -CH2-, -CH(CH3)- or -C(CH3)2- can be used as pesticides. Preferably, insects and arachnids can be controlled.