Cl[C:2]1[C:11]2[C:6](=[C:7]([CH3:13])[CH:8]=[CH:9][C:10]=2[Cl:12])[N:5]=[C:4]([CH3:14])[CH:3]=1.[NH:15]1[CH:19]=[N:18][CH:17]=[N:16]1.S(=O)(=O)(O)O.[OH-].[NH4+]>O>[N:15]1([C:2]2[C:11]3[C:6](=[C:7]([CH3:13])[CH:8]=[CH:9][C:10]=3[Cl:12])[N:5]=[C:4]([CH3:14])[CH:3]=2)[CH:19]=[N:18][CH:17]=[N:16]1A mixture of 2.26 g of 4,5-dichloro-2,8-dimethyl-quinoline, 1.38 g of 1,2,4-triazole and 0.1 g of 96% sulfuric acid is stirred at 70° C. for 3 hours. The reaction mixture is poured into 50 ml of water and neutralized with 1 ml of a concentrated ammonium hydroxide solution. The precipitated product is filtered and washed with water. Thus 2.0 g of the desired compound are obtained, yield 77.4%. Mp.: 117°-118° C.
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