Triethylamine → 2-chloro-N-(1,2,5-oxadiazol-3-yl)-6-(trifluoromethyl)nicotinamide

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Reaction Steps

239 mg (1.06 mmol) of 2-chloro-6-(trifluoromethyl)nicotinic acid and 1.6 g (2.0 mmol) of Mukaiyama reagent on polymer (1.25 mmol/g) are admixed with 15 ml of dichloromethane (abs.) and 0.31 g (3.03 mmol) of triethylamine. Then 100 mg (1.01 mmol) of 4-methyl-1,2,5-oxadiazol-3-ylamine are added. The reaction mixture is stirred at room temperature (RT) for 14 h. Subsequently, the solid is removed by means of a frit and washed with 10 ml of dichloromethane. The filtrate is concentrated and purified by chromatography using a silica gel column with heptane/ethyl acetate. Yield: 52 mg (16%).

Provenance & Evidence