Water → Ethyl 1-[2,4-bis(trifluoromethyl)benzyl]-7-oxoazepane-4-carboxylate

Participants

Reaction Steps

To a solution of ethyl 7-oxoazepane-4-carboxylate (9.78 g) in THF (250 mL) was added 60% sodium hydride (2.33 g, containing mineral oil) under ice-cooling. The reaction mixture was stirred for 5 min under ice-cooling, and 1-(bromomethyl)-2,4-bis(trifluoromethyl)benzene (17.9 g) was added. The reaction mixture was stirred at room temperature overnight, water was added, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/petroleum ether) to give the title compound (14.9 g).

Provenance & Evidence