Multi-step reaction with 13 steps
1: potassium permanganate; water / tert-butyl alcohol / 16 h / 70 °C
2: thionyl chloride / 5 h / 0 °C / Reflux
3: phenyltrimethylammonium tribromide / tetrahydrofuran / 3 h / 20 °C / Inert atmosphere
4: 1,8-diazabicyclo[5.4.0]undec-7-ene / tetrahydrofuran / 3 h / 20 °C
5: palladium on activated charcoal; hydrogen; potassium carbonate / ethyl acetate / 4 h / 20 °C
6: triethylamine / dichloromethane / 2 h / 0 °C / Inert atmosphere
7: methanol; sodium tetrahydroborate / 16 h / 0 - 20 °C / Inert atmosphere
8: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; carbon monoxide; triethylamine / 2 h / 50 °C / 2585.81 Torr
9: manganese(IV) oxide / dichloromethane / 16 h / 0 - 20 °C
10: hydroxylamine hydrochloride; sodium acetate / tetrahydrofuran; water / 2 h / 20 °C
11: [bis(acetoxy)iodo]benzene / tetrahydrofuran / 2 h / 68 °C
12: sodium hydroxide / tetrahydrofuran; water / 3 h / 20 °C
13: triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate / N,N-dimethyl-formamide / 16 h / 20 °C
With
methanol; manganese(IV) oxide; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium tetrahydroborate; potassium permanganate; thionyl chloride; [bis(acetoxy)iodo]benzene; carbon monoxide; palladium on activated charcoal; hydroxylamine hydrochloride; water; hydrogen; sodium acetate; phenyltrimethylammonium tribromide; potassium carbonate; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate; sodium hydroxide;
In
tetrahydrofuran; dichloromethane; water; ethyl acetate; N,N-dimethyl-formamide; tert-butyl alcohol;
DOI:10.1016/j.tetlet.2014.02.003