1: N-methylporpholine / CH2Cl2 / 0.08 h / -20 - -10 °C 2: N-methylmorpholine / CH2Cl2 / 0.5 h / -10 °C 3: H2 / 20percent Pd/C / methanol / 3 h / 24.5 - 25.5 °C / 2518.5 - 2668.5 Torr 4: triethylamine / acetonitrile / 4 h / Heating View Scheme

1: N-methylmorpholine / CH2Cl2 / 0.5 h / -10 °C 2: H2 / 20percent Pd/C / methanol / 3 h / 24.5 - 25.5 °C / 2518.5 - 2668.5 Torr 3: triethylamine / acetonitrile / 4 h / Heating View Scheme

1: H2 / 20percent Pd/C / methanol / 3 h / 24.5 - 25.5 °C / 2518.5 - 2668.5 Torr 2: triethylamine / acetonitrile / 4 h / Heating View Scheme

triethylamine in acetonitrile 4 h; Heating;