反应详情

Hydrobromic acid (48%, 46 mL) was added to the 7-methoxy-1-methyl-1,2,3,4-tetrahydro-isoquinoline (2.55 g) and the resulting mixture was heated at reflux for 16 h. Evaporation of the hydrobromic acid, followed by trituation with ethyl acetate (3×) afforded 1-methyl-1,2,3,4-tetrahydro-isoquinolin-7-ol hydrogen bromide (3.04 g).

1. temperaturethe resulting mixture was heated
2. temperatureat reflux for 16 h
3. customEvaporation of the hydrobromic acid