4-Chloro-2-cyano -n, n- dimethyl-5-p-tolyl-imidazole-1-sulfonamide synthesis

The present invention discloses a synthesis of 4-chloro-2-cyano -N, N- dimethyl-5-p-Toluene sulfonamide-imidazol-1-yl, 2-oxo group is characterized -2-P- benzyl acetaldehyde was synthesized imidazole ring with glyoxylic acid, then after ammoniation, dehydration, chlorination, sulfonylation final synthesis of 4-chloro-2-cyano -N, N- dimethyl-5- synthesis method of the present invention is the preparation of 4-chloro-2-cyano -N, N- dimethyl-5-p-tolyl-imidazole-1-sulfonamide purity 98.0%; p-tolyl-imidazole-1-sulfonamide The total yield of more than 44.5%. This invention discloses a method easily available inexpensive raw materials, simple process, mild reaction conditions, to produce less waste, less environmental pollution. The present invention is mainly applied pesticides fungicides 4-chloro-2-cyano -N, N- dimethyl-5-p-tolyl-imidazole-1-sulfonamide.