Hydrazine → 3,4-Dimethoxybenzamide

Participants

Reaction Steps

Subsequently, 2-(3,4-dimethoxy-benzoylamino)-5-methyl-thiophene-3-carboxylic acid methyl ester (16 mg) synthesized by the above process was dissolved in ethanol (5 ml). Hydrazine (1 ml) was then added to the solution at room temperature, and the mixture was stirred at that temperature for 12 hr. After the completion of the reaction, the reaction system was concentrated under the reduced pressure, and the residue was purified by column chromatography eluted with a chloroform-methanol system to give N-(3-hydrazinocarbonyl)-5-methylthiophen-2-yl)-3,4-dimethoxy-benzamide (8.0 mg, yield 50%).

Provenance & Evidence