反应详情

To a solution of 4-aminomethyl-1-(1-naphthylsulfonyl)piperidine (608 mg, 2.0 mmol) and triethylamine (303 mg, 3.0 mmol) in dichloromethane (30 mL) stirring at room temperature under argon, was added cyclohexanecarbonyl chloride (325 mg, 2.2 mmol) in a single portion. After 2 h the solvent was evaporated under vacuum, and the residue was slurried with diethyl ether and filtered. The filtrate was evaporated, and purification by column chromatography (silica gel, ethyl acetate in hexane) provided 4-(N-cyclohexylcarbonylaminomethyl)-1-(1-naphthylsulfonyl)piperidine (793 mg, 96% yield) as a gum.

1. customAfter 2 h the solvent was evaporated under vacuum
2. filtrationfiltered
3. customThe filtrate was evaporated
4. custompurification by column chromatography (silica gel, ethyl acetate in hexane)