Phenylhydrazine derivatives useful as intermediates in preparation of 5-amino-1-phenylpyrazoles

Abstract From the Canadian patent

A phenylhydrazine derivative of the formula (IV), in which, R4 and R6 independently of one another represent cyano nitro, halogen, alkyl, alkoxy, alkoxycarbonyl halogenoalkyl, halogenoalkoxy or a radical -S(O)n-R13, and R5, R7 and R8 independently of one another and of R4 and R6 represent the same radicals as R4 and R6 and additionally represent hydrogen, R13 represents alkyl halogenoalkyl, amino, alkylamino, or dialkylamino and n represents an integer of 0, 1 or 2 and, Z represents one of the radicals, and , wherein, R1 represents hydrogen, nitroso nitro, halogen, alkyl, halogenoalkyl, aryl (optionally substituted by halogen nitro, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkyl) or, one …