in acetonitrile T=0 - 20°C; 16 h;

1: N-ethyl-N,N-diisopropylamine / ethanol / 3 h / Reflux 2: hydrogen / palladium 10 on activated carbon / ethanol / 20 °C / 2585.81 Torr 3: acetonitrile / 1 h / 0 - 20 °C View Scheme

1: hydrogen / palladium 10 on activated carbon / ethanol / 20 °C / 2585.81 Torr 2: acetonitrile / 1 h / 0 - 20 °C View Scheme

1: N-ethyl-N,N-diisopropylamine / ethanol / 10 h / Reflux 2: hydrogen / palladium 10 on activated carbon / ethanol; water / 16 h / 20 °C / 2585.81 Torr 3: acetonitrile / 16 h / 0 - 20 °C View Scheme

1.1: sulfuric acid; potassium nitrate / 1 h / 0 - 100 °C / |Inert atmosphere 2.1: trichlorophosphate / 1,2-dichloro-ethane / 4 h / 80 - 85 °C / |Inert atmosphere 2.2: 1 h / 0 - 65 °C / |Inert atmosphere 3.1: 100 °C / |Sealed tube; |Inert atmosphere 4.1: palladium on activated charcoal; hydrogen / ethanol; water / 4 h / 2585.81 Torr / |Inert atmosphere 5.1: acetonitrile / 1 h / 0 - 20 °C / |Inert atmosphere View Scheme

1.1: trichlorophosphate / 1,2-dichloro-ethane / 4 h / 80 - 85 °C / |Inert atmosphere 1.2: 1 h / 0 - 65 °C / |Inert atmosphere 2.1: 100 °C / |Sealed tube; |Inert atmosphere 3.1: palladium on activated charcoal; hydrogen / ethanol; water / 4 h / 2585.81 Torr / |Inert atmosphere 4.1: acetonitrile / 1 h / 0 - 20 °C / |Inert atmosphere View Scheme

1: N-ethyl-N,N-diisopropylamine / ethanol / 3 h / 0 °C / |Sealed tube; |Inert atmosphere 2: palladium on activated charcoal; hydrogen / ethanol; water / 4 h / 2585.81 Torr / |Inert atmosphere 3: acetonitrile / 1 h / 0 - 20 °C / |Inert atmosphere View Scheme