反应详情

A solution of 4-(4-nitro-phenyl)-cyclohexanone (0.512 g, 2.34 mmol, as prepared in the previous step) in EtOH (50 mL) was hydrogenated under the following conditions on an H-cube apparatus fitted with a 30 mm CatCart™ 5% Pd/C cartridge: 40° C., 40 bar H2, flow rate 1 mL/min. The solvent was evaporated in vacuo. Silica gel chromatography of the residue with 25% EtOAc-hexane on a 20-g Isolute SPE column (FlashMaster system) afforded the title compound (0.140 g, 32%) as a colorless glassy solid. Mass spectrum (ESI, m/z): Calcd. for C12H15NO, 190.1 (M+H), found 190.2.

1. custom40° C., 40 bar H2, flow rate 1 mL/min
2. customThe solvent was evaporated in vacuo