反应详情

1-Aminomethyl-5,6-dimethoxy-1-hydroxy-3-phenyl-1,2,3,4-tetrahydronaphthalene (11.5 g, 37 mmol), from Step 1, was heated at reflux temperature in 300 mL of isopropyl alcohol saturated with hydrochloric acid for 2 h. The resultant solution was concentrated and the solid residue was triturated with hot toluene to give 10.6 g (98% yield) of 1-aminomethyl-5,6-dimethoxy-3-phenyl-3,4-dihydronaphthalene hydrochloride, m.p. 189.5°-190° C.; 1H NMR (d6 -DMSO) δ: 2.78 (dd, 1H), 3.11 (dd, 1H), 3.2-3.4 (m, 2H+H2O), 3.6 (s, 3H), 3.81 (s, 3H), 3.93 (d, 1H), 6.1 (d, 1H), 6.93 (d, 1H), 7.12 (d, 1H), 7.2-7.4 (m, 5H).

1. concentrationThe resultant solution was concentrated
2. customthe solid residue was triturated with hot toluene