反应详情

At room temperature, 6.0 g of N-[2,6-dimethyl-4-{1-hydroxy-2,2,2-trifluoro-1-(trifluoromethyl)ethyl}phenyl]3-aminobenzamide, 2.5 g of benzoyl chloride and 1.8 g of pyridine were introduced to 50 ml of tetrahydrofuran. After disappearance of the starting raw material was confirmed by means of TLC, the reaction solution was filtered off, and the obtained filtrate was concentrated under a reduced pressure. The resulting residue was purified by silica gel column chromatography using an eluent (development solvent; hexane:ethyl acetate=3:1) to obtain 6.3 g of the desired product (Yield: 85%) in the form of powder.

1. filtrationthe reaction solution was filtered off
2. concentrationthe obtained filtrate was concentrated under a reduced pressure
3. customThe resulting residue was purified by silica gel column chromatography