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tert-butyl 3-(4-fluoro-N-methyl-2-(trifluoromethyl)benzamido)piperidine-1-carboxylate[ No CAS ]
Yield
Reaction Conditions
Operation in experiment
84%
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In tetrahydrofuran; at 20℃; for 16h;Inert atmosphere; Cooling with ice;
General procedure: 4-Fluoro-2-(trifluoromethyl)benzoic acid (1 equiv), amine (1 equiv) and DMAP (0.1 equiv) were added to THF (50mL) under nitrogen. The obtained solution was cooled down on an ice-water bath. EDC·HCl (1.3 equiv) was added to the solution, and the reaction mixture was stirred for 16h while warming at room temperature. The reaction solution was washed with water and extracted with EtOAc, dried over magnesium sulfate, filtered, and concentrated in vacuo. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=1:1) to yield pure product.