NEMATICIDAL PYRAZOLES

摘要

Novel pyrazoles of formula (I) wherein R<1> represents halogen, C1-6 alkyl, C1-5 haloalkyl, C2-6 alkoxy, C1-4 alkylthio, C2-5 alkenyloxy, C3-5 alkynyloxy, C2-6 (total carbon number) alkoxyalkyl, C2-6 (total carbon number) alkylthioalkyl, C1-5 haloalkoxy, C2-6 (total carbon number) alkoxyalkoxy, hydroxy or optionally substituted phenyl, R<2> represents hydrogen, halogen, C1-5 alkyl, C2-6 (total carbon number) alkoxyalkyl, C2-6 (total carbon number) alkylthioalkyl, C2-6 (total carbon number) alkylsulfinylalkyl, C2-6 (total carbon number) alkylsulfonylalkyl or C1-5 haloalkyl, R<3> represents hydrogen, C1-5 alkyl, -COR<4>, COOR<5>, CH(OR<6>)2 or CH2Si(R<7>)3, R<4> represents C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, optionally substituted C3-6 cycloalkyl, C2-6 (total carbon number) alkoxyalkyl, C2-6 (total carbon number) alkylthioalkyl, optionally substituted phenyl, C1-6 haloalkyl, alkylamino, di-(C1-6 alkyl)amino or optionally substituted phenylamino, R<5> represents C1-7 alkyl, R<6> and R<7> represent C1-6 alkyl, and n is 1, 2 or 3, and when n is 2 or 3, the corresponding number (n) of R<1> radicals may be the same or different, processes for preparing these compounds and their use as nematicides and anthelmintics.