Multi-step reaction with 6 steps
1: lithium aluminium tetrahydride / 2-methyltetrahydrofuran / 19.5 h / 31 - 50 °C
2: hydrogen bromide / toluene; water / 38 h / 87 °C / Reflux
3: potassium carbonate / acetonitrile; water / 66 h / 20 - 60 °C
4: N-benzyl-trimethylammonium hydroxide / acetonitrile; water / 1 h / 20 °C
5: dichloromethane / 1 h
6: triethylamine; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide / N,N-dimethyl-formamide; tetrahydrofuran / 3.25 h / 20 °C
With
lithium aluminium tetrahydride; hydrogen bromide; N-benzyl-trimethylammonium hydroxide; potassium carbonate; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; triethylamine;
In
tetrahydrofuran; 2-methyltetrahydrofuran; dichloromethane; water; N,N-dimethyl-formamide; toluene; acetonitrile;