3-azolyl-benzotriazines and -benzotriazine 1-oxides, processes for their preparation and their use for combating plant diseases

Abstract From the Canadian patent

The present invention relates to compositions of 3-azolyl-benzotriazines and -benzotriazine 1-oxides, and to their use as plant fungicides and bactericides. The compounds correspond to the formula in which X represents halogen, C1-C4 alkyl C1-C4 alkoxy, C1-C4 alkylmercapto, C1-C4 alkylsulphonyl nitro or trifluoromethyl, m represents 0 1, 2, 3 or 4, the substituents X being selected independently of one another when m is 2 or more, n represents 0 or 1 and Az represents a five-membered hetero-aromatic ring with 2 or 3 nitrogen atoms, which is bonded via nitrogen and which can be optionally substituted. The active compounds according to the invention exhibit a powerful fungitoxic action and …