Multi-step reaction with 6 steps
1: 1,2,3-Benzotriazole; thionyl chloride / dichloromethane / 6.5 h / -5 - 25 °C
2: 18-crown-6 ether; potassium tert-butylate / tetrahydrofuran / 0 - 25 °C
3: hydrogenchloride / dichloromethane; 1,4-dioxane / 25 °C
4: caesium carbonate / dimethyl sulfoxide / 4 h / 25 - 80 °C
5: water; sodium hydroxide / tetrahydrofuran; methanol / 4 h / 50 °C
6: ammonium chloride; O-(benzotriazol-1-yl)-N,N,N,N-tetramethyluroniumhexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 4 h / 25 °C
With
hydrogenchloride; 1,2,3-Benzotriazole; thionyl chloride; 18-crown-6 ether; potassium tert-butylate; water; ammonium chloride; caesium carbonate; N-ethyl-N,N-diisopropylamine; O-(benzotriazol-1-yl)-N,N,N,N-tetramethyluroniumhexafluorophosphate; sodium hydroxide;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; dimethyl sulfoxide; N,N-dimethyl-formamide;