Oblon, Spivak, McClelland, Maier, & Neustadt
Pyrazole derivatives and herbicides containing them
 A pyrazole derivative of the formula I ##STR1## wherein A is C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl or C.sub.2 -C.sub.4 alkynyl; B is hydrogen, C.sub.1 -C.sub.3 alkyl, halogen, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.2 -C.sub.4 alkoxyalkyl, C.sub.2 -C.sub.4 alkylthioalkyl or C.sub.2 -C.sub.4 alkoxycarbonyl; X is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, halogen, nitro, cyano, etc.; Y is --OR.sup.1 (wherein R.sup.1 is C.sub.3 -C.sub.8 cycloalkyl, etc), --O--L--O--R.sup.1 (wherein L is C.sub.1 -C.sub.6 alkylene which may be substituted by C.sub.1 -C.sub.3 alkyl), --O--L--OH, --O--L--O--L--O--R.sup.2 (wherein R.sup.2 is hydrogen, C.sub.1 -C.sub.6 alkyl group, etc.), --O--L--R.sup.3 (wherein R.sup.3 is phenyl which may be substituted by C.sub.1 -C.sub.3 alkyl, etc.), --O--M (wherein M is a 3- to 6-membered alicyclic group), --O--L--M, --O--L--NR.sup.4 R.sup.5 (wherein each of R.sup.4 and R.sup.5 is hydrogen or C.sub.1 -C.sub.6 alkyl, or R.sup.4 and R.sup.5 form a ring together with the adjacent nitrogen atom), --O--L--COOR.sup.4, --O--CH.dbd.CH--COOR.sup.4, --O--L--CN, --O--L--C(O)--R.sup.2, --O--L--S(O).sub.n --R.sup.4 (wherein n is an integer of from 0 to 2), --O--COOR.sup.4, --O--CONR.sup.4 R.sup.5, --OP(O)(OR.sup.4).sub.2, --S(O).sub.n R.sup.1, or --S(O).sub.n --L--O--R.sup.1 ; Z is halogen, nitro, C.sub.1 -C.sub.3 alkoxy, etc.; V is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy; W is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, etc.; Q is hydrogen, C.sub.1 -C.sub.6 alkyl which may be substituted by halogen, . . . --C(O)--R.sup.7 (wherein R.sup.7 is phenyl which may be substituted), --S(O).sub.2 R.sup.7, --P(O)(OR.sup.7).sub.2, --L--C(O)--R.sup.7, --L--C(O)--N(R.sup.8)(R.sup.9) (wherein each of R.sup.8 and R.sup.9 is hydrogenor C.sub.1 -C.sub.6 alkyl), --L--R.sup.10 (wherein R.sup.10 is phenyl group may be substituted, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.7 alkoxy, or hydroxyl), --L--N(R.sup.8)(R.sup.9), --L--OR.sup.11 (wherein R.sup.11 is hydrogen, C.sub.1 -C.sub.6 alkyl, or C.sub.1 -C.sub.6 alkenyl), --L--OC(O)R.sup.12 (wherein R.sup.12 is C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy), --L--S(O).sub.n R.sup.11, --L--SC(O)R.sup.8, ##STR2## (wherein each of L1 and L2 is methylene, oxygen or sulfur, R.sup.12 is hydrogen or C.sub.1 -C.sub.3 alkyl, and m is 2 or 3); and a salt thereof. 
Nissan Chemical Industries Ltd.
Koichi Yasuo Eiichi Junichi Shigeomi Tsutomu Takuya
Suzuki Kondo Oya Watanabe Watanabe Nawamaki Kakuta