Dimethylformamide → 4-(2-Chloro-phenyl)-2-(5-dimethoxymethyl-2-nitro-phenylamino)-thiazole-5-carboxylic acid amide

Participants

Reaction Steps

A mixture of 0.15 g (0.60 mmole) of 2-amino-4-(2-chloro-phenyl)-thiazole-5-carboxylic acid amide (V.20), 0.15 g (0.72 mmole) of 4-dimethoxymethyl-2-fluoro-1-nitrobenzene, 0.99 g (3.0 mmole) of cesium carbonate and 10 mL of dimethylformamide was heated at 70 degrees for one day. The reaction mixture was diluted with ethyl acetate and water. The precipitate was collected by filtration, washed with water and dried under vacuum to give 0.24 g of 4-(2-chloro-phenyl)-2-(5-dimethoxymethyl-2-nitro-phenylamino)-thiazole-5-carboxylic acid amide (VI.20a).

Provenance & Evidence