Pesticidal 1-aryl-3-iminopyrazoles

A compound having the formula:

• ##STR47## or a pesticidally acceptable salt thereof, wherein:
• R.sub.31 is H, CN, NO.sub.2, NO, SH, C.sub.1 -C.sub.6 alkylthio, NH.sub.2, P(O)(OR.sub.8)(OR.sub.9) or R.sub.38 ;
• or R.sub.31 is mono(C.sub.1 -C.sub.6 alkyl)amino, di(C.sub.1 -C.sub.6 alkyl)amino, formyl(C.sub.1 -C.sub.6 alkyl), C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.6 cycloalkyl or C.sub.4 -C.sub.8 (cycloalkyl)alkyl, each of which alkyl is optionally substituted by one or more R.sub.35 ;
• or R.sub.31 is naphthyl or phenyl, each of which is optionally substituted by one or more R.sub.36 or R.sub.37 ;
• or R.sub.31 is NH--CO--NH--N.dbd.CR.sub.8 R.sub.9, NH--CS--NH--N.dbd.CR.sub.8 R.sub.9, NH--CO--NR.sub.8 R.sub.9, NH--CS--NR.sub.8 R.sub.9, NH--CO--OR.sub.8, NH--CS--OR.sub.8 or NH--CO--NH--NH.sub.2 ;
• R.sub.32 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.7 cycloalkyl or C.sub.4 -C.sub.8 cycloalkylalkyl, each of which alkyl is optionally substituted by one or more R.sub.35 ;
• or R.sub.32 is phenyl, optionally substituted by one or more R.sub.36 or R.sub.37 ;
• or R.sub.32 is R.sub.38 ;
• R.sub.33 is a lone pair of electrons;
• or R.sub.33 is an oxygen or sulfur atom, linked to the nitrogen atom by a covalent bond or a bond which is partially covalent and partially ionic;
• or R.sub.33 is C.sub.1 -C.sub.6 alkyl, the nitrogen atom to which R.sub.33 is linked then being in the cationic form N.sup.+ ;
• or R.sub.31 and R.sub.33 together form C.sub.2 -C.sub.6 alkylene, wherein one or two of the carbon atoms is each optionally replaced by a heteroatom selected from the group consisting of O, S and N, the nitrogen atom to which R.sub.31, and R.sub.33 are linked then being in the cationic form N.sup.+ ;
• R.sub.35 is halogen, amino, C.sub.1 -C.sub.6 alkylamino, di(C.sub.1 -C.sub.6 alkyl)amino, NO.sub.2, CN, C.sub.1 -C.sub.6 alkoxy, (C.sub.1 -C.sub.6 alkoxy)carbonyl, hydroxycarbonyl, (C.sub.1 -C.sub.6 alkyl)carbonyl, methylene, methylidyne, acetenyl or acetenyl(C.sub.1 -C.sub.6 alkyl);
• or R.sub.35 is phenyl, optionally substituted by one or more R.sub.36 ;
• or R.sub.35 is a heterocyclic ring having a total of 3 to 7 ring atoms of which 1 to 4 are heteroatoms selected from the group consisting of O, S and N, said heterocyclic ring being saturated or unsaturated and being optionally substituted by one or more R.sub.36 ;
• or R.sub.35 is OH, SH, C.sub.1 -C.sub.6 alkylthio, C.sub.1 -C.sub.6 alkylsulfinyl, C.sub.1 -C.sub.6 alkylsulfonyl, aminocarbonyl, (C.sub.1 -C.sub.6)alkylaminocarbonyl, di(C.sub.1 -C.sub.6 alkyl)aminocarbonyl, (C.sub.1 -C.sub.6 alkoxy)carbonyl or P(O)(OR.sub.8)(OR.sub.9);
• R.sub.36 is SF.sub.5, halogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 hydroxyalkyl, NO.sub.2, CN, amino, C.sub.1 -C.sub.6 alkylamino, di(C.sub.1 -C.sub.6 alkyl)amino, di(C.sub.1 -C.sub.6 alkyl)aminocarbonylamino, (C.sub.1 -C.sub.6 alkyl)aminocarbonylamino, aminocarbonylamino, (C.sub.1 -C.sub.6 alkyl)carbonyl, (C.sub.1 -C.sub.6 alkoxy)carbonyl, (C.sub.1 -C.sub.6 alkyl)carbonylamino, (C.sub.1 -C.sub.6 alkoxy)carbonylamino, aminocarbonyl, di(C.sub.1 -C.sub.6 alkyl)aminocarbonyl, (C.sub.1 -C.sub.6 alkyl)aminocarbonyl, hydroxycarbonyl, aminocarbonyloxy, (C.sub.1 -C.sub.6 alkyl)aminocarbonyloxy, di(C.sub.1 -C.sub.6 alkyl)aminocarbonyloxy, hydroxy, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 haloalkyl, C.sub.1 -C.sub.6 haloalkoxy, C.sub.1 -C.sub.6 alkylthio, C.sub.1 -C.sub.6 alkylsulfinyl, C.sub.1 -C.sub.6 alkylsulfonyl, C.sub.1 -C.sub.6 haloalkylthio, C.sub.1 -C.sub.6 haloalkylsulfinyl, C.sub.1 -C.sub.6 haloalkylsulfonyl, P(O)(OR.sub.8)(OR.sub.9), (C.sub.1 -C.sub.6 alkyl)[(C.sub.1 -C.sub.6 alkyl)carbonyl]amino or phenylamino(C.sub.1 -C.sub.6 alkyl);
• R.sub.37 is R.sub.36, phenyl optionally substituted by one or more R.sub.36, phenoxy optionally substituted by one or more R.sub.36, or benzyl optionally substituted by one or more R.sub.36 ;
• R.sub.38 is a heterocyclic radical derived from a single heterocyclic ring or from a two ring fused heterocyclic system at least one ring of which is heterocyclic, each ring having 3 to 7 ring atoms, each heterocyclic ring having 1 to 4 hetero ring atoms selected from the group consisting of O, S and N, each ring being saturated or unsaturated and optionally having one or more substituents selected from the group consisting of R.sub.36 and phenyl optionally substituted by one or more R.sub.36 ;
• R.sub.8 and R.sub.9, which are the same or different, are each H or C.sub.1 -C.sub.6 alkyl optionally having one or more substituents selected from the group consisting of halogen, NO.sub.2, CN, CHO, OH, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylthio, C.sub.1 -C.sub.6 alkylsulfinyl, C.sub.1 -C.sub.6 alkylsulfonyl, (C.sub.1 -C.sub.6 alkoxy)carbonyl, hydroxycarbonyl and carbamoyl;
• R.sub.4 is R.sub.11 or S(O).sub.n R.sub.11 ;
• R.sub.11 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl or C.sub.4 -C.sub.8 (cycloalkyl)alkyl, each of which is optionally substituted by one or more halogen;
• n is 0, 1 or 2;
• R.sub.5 is H, halogen, CN, S(O).sub.n R.sub.8, OR.sub.8, NR.sub.8 R.sub.9, N(R.sub.8)CON(R.sub.9)(R.sub.8), azido or --N.dbd.C(R.sub.10)(OR.sub.9);
• R.sub.10 has one of the meanings defined by R.sub.8 above, or R.sub.10 is benzyl or phenyl, each of which is optionally substituted by one or more R.sub.36 ;
• Z is N or C--R.sub.16 ;
• and
• R.sub.12, R.sub.13, R.sub.14, R.sub.15 and R.sub.16, which are the same or different, are each halogen, R.sub.8, OR.sub.8, SF.sub.5, S(O).sub.n R.sub.8, CN, NO.sub.2, CHO, C(O)R.sub.8 or COOR.sub.8.