Ammonia → 3-{4-[(3-Fluorophenyl)methoxy]phenyl}prop-2-ynamide

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Reaction Steps

50 mg (0.19 mmol) of [4-(3-fluoro-benzyloxy)-phenyl]-propynoic acid is dissolved in 3 ml of THF and treated with 27 mg (0.2 mmol) of 1-hydroxybenzotriazole and 37 mg (0.19 mmol) of N-(3-dimethylaminopropyl)-N′-ethyl-carbodiimide hydrochloride. The resulting mixture is stirred at RT for 30 minutes, cooled to 0° C. and treated with 1 ml of concentrated ammonia. The suspension is stirred overnight at RT, diluted with water and extracted three times with dichloromethane. Flash-chromatography (silica gel, dichloromethane/methanol) yields 29 mg (59%) of a colorless solid. MS: m/e=270.2 (M++H).

Provenance & Evidence