反应详情

Trifluoroacetic acid (0.31 mL) was added to a solution of [(4-hydroxy-cyclohexyl)-(4-methoxy-phenyl)-methyl]-carbamic acid tert-butyl ester (34, 101 mg) in dichloromethane (6 mL). After stirring for 2 hours, 2M hydrochloric acid (3 mL) was added. Evaporation gave crude product as a colourless solid. Water and acetonitrile were added and the mixture was concentrated and then freeze dried to give 83 mg of 4-[amino-(4-methoxy-phenyl)-methyl]-cyclohexanol (35) as the hydrochloride salt. Rt=0.71 min (Method 5). Detected mass: 219.2 (M—NH2+).

1. customEvaporation
2. customgave crude product as a colourless solid
3. concentrationthe mixture was concentrated
4. customfreeze dried