反应详情

A mixture of cis and trans 4-(4-benzyloxy-phenyl)-cyclohexyl-amine (preparation see under 43a, 1.0 g, 3.55 mmol), MeOH (100 ml) and 2,3-epoxypropyl-benzene (480 mg, 3.55 mmol) was refluxed for 3 days. Another portion of and 2,3-epoxypropyl-benzene (480 mg, 3.55 mmol) was added and stirring was continued for 2 days. The solvent was evaporated and the residue was purified by chromatography (SiO2, AcOEt-hexane 1:1) to give (RS)-1-[cis-4-(4-benzyloxy-phenyl)-cyclohexylamino]-3-phenyl-propan-2-ol (430 mg, colorless oil, MS: m/e=416.3 (M+H+)) and (RS)-1-[trans-4-(4-benzyloxy-phenyl)-cyclohexylamino]-3-phenyl-propan-2-ol (85 mg, white crystals, Mp. 137.5-138, MS: m/e=416.3 (M+H+)).

1. temperaturewas refluxed for 3 days
2. customThe solvent was evaporated
3. customthe residue was purified by chromatography (SiO2, AcOEt-hexane 1:1)