Multi-step reaction with 8 steps
1.1: acetic acid / ethanol / 90 °C
2.1: nitric acid / 0.25 h / 0 °C
2.2: Cooling with ice
3.1: N-ethyl-N,N-diisopropylamine; trichlorophosphate / 2 h / 110 °C
4.1: ethanol / 1 h / 160 °C / microwave irradiation
4.2: 20 °C
5.1: triethylamine / Schwartz's reagent / tetrahydrofuran / 20.3 h / 150 °C / microwave irradiation
6.1: cesium fluoride / bis-triphenylphosphine-palladium(II) chloride; monophosphine 1,2,3,4,5-pentaphenyl-1'-(di-tert-butylphosphino)ferrocene / tetrahydrofuran / 0.33 h / 120 °C / microwave irradiation; Inert atmosphere
7.1: hydrogen / palladium 10% on activated carbon / ethanol / 20 °C / 15001.5 Torr / H-Cube
8.1: boron tribromide / dichloromethane / 2 h / 0 - 20 °C
8.2: Cooling with ice
With
hydrogen; nitric acid; boron tribromide; triethylamine; N-ethyl-N,N-diisopropylamine; cesium fluoride; trichlorophosphate;
bis-triphenylphosphine-palladium(II) chloride; Schwartz's reagent; monophosphine 1,2,3,4,5-pentaphenyl-1'-(di-tert-butylphosphino)ferrocene; palladium 10% on activated carbon; acetic acid;
In
tetrahydrofuran; ethanol; dichloromethane;