Triethylamine → 2-Bromo-N-(3,4-dimethyl-phenyl)-N-[2-(6-trifluoromethyl-pyridin-3-yl)-ethyl]-acetamide

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反応手順

A solution of (3,4-dimethyl-phenyl)-[2-(6-trifluoromethyl-pyridin-3-yl)-ethyl]-amine (220 mg, 0.75 mmol) in diethylether (2 mL) was cooled to 0° C. and triethylamine (114 μL, 0.82 mmol) and bromoacetyl chloride (81 μL, 0.97 mmol) were added. After stirring for 15 min. at this temperature the ice bath was removed and the suspension was stirred for 2 h at ambient temperature. Further bromoacetyl chloride (16 μL, 0.2 mmol) was added and the resulting suspension was stirred for 1 h at this temperature. It was diluted with TBME (10 mL) and washed with water (15 mL) and brine (15 mL). The combined aqueous layers were extracted with TBME (15 mL) and the combined organic layers dried over sodium sulfate. Concentration and purification by chromatography (SiO2, heptane:ethyl acetate=95:5 to 70:30) afforded the title compound (134 mg, 43%) as a light brown oil. MS m/e: 417.1 [M+H]+.

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