Acetyl chloride → 3-Thiophenecarboximidic acid ethyl ester hydrochloride

Participants

Reaction Steps

To a solution of thiophene-3-carbonitrile (10 g, 9.2 mmol) in dichloromethane (100 mL) and ethanol (170 mL) at 0° C. was added acetyl chloride (114 g, 145 mmol). The reaction was allowed to slowly warm to ambient temperature and stir 16 h. The reaction mixture was then concentrated under reduced pressure to yield a solid which was triturated with diethyl ether resulting in 17.1 g of 3-thiophenecarboximidic acid ethyl ester hydrochloride as a white solid.

Provenance & Evidence