Multi-step reaction with 13 steps
1: N-ethyl-N,N-diisopropylamine; sodium iodide / N,N-dimethyl-formamide / 3.5 h / 100 °C
2: trichlorophosphate / 4 h / 25 - 35 °C
3: bromine / dichloromethane / 2.5 h / 0 °C
4: dichloromethane; toluene / 16 h / Reflux
5: sodium hydroxide / methanol; water / 3 h / 40 °C
6: triethylamine; hydrogen / methanol / 2 h / 70 °C / 6080.41 - 7600.51 Torr / Autoclave; Inert atmosphere
7: N-ethyl-N,N-diisopropylamine; diphenyl phosphoryl azide / toluene / 1 h / 70 °C
8: 10 h / 95 °C
9: N,N-dimethyl-formamide / 20 h / 120 °C / Inert atmosphere
10: hydrogen; palladium on activated charcoal / methanol / 3 h / 20 °C / 11251.1 Torr
11: toluene / 18 h / Reflux
12: sodium hydrogencarbonate / 1,4-dioxane / 2 h / 20 °C
13: sodium hydroxide; dihydrogen peroxide / dimethyl sulfoxide / 12 h / 20 - 25 °C
With
diphenyl phosphoryl azide; palladium on activated charcoal; hydrogen; dihydrogen peroxide; bromine; sodium hydrogencarbonate; triethylamine; N-ethyl-N,N-diisopropylamine; sodium iodide; sodium hydroxide; trichlorophosphate;
In
1,4-dioxane; methanol; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide; toluene;
2: |Vilsmeier-Haack Formylation / 4: |Wittig Olefination;
DOI:10.1016/j.tetlet.2013.01.003