1: 1.) potassium carbonate, 2.) hydrogen / 2.) 5 percent Pd on carbon / 1.) water, reflux, 3 h, 2.) methanol, 1 bar 2: N-methylmorpholine / CH2Cl2 / 0.25 h / -15 °C 3: N-methylmorpholine / CH2Cl2 / 1.) -15 deg C, 1 h, 2.) r.t., 3 h View Scheme

1: N-methylmorpholine / CH2Cl2 / 0.25 h / -15 °C 2: N-methylmorpholine / CH2Cl2 / 1.) -15 deg C, 1 h, 2.) r.t., 3 h View Scheme

4-methyl-morpholine in dichloromethane 1.) -15 deg C, 1 h, 2.) r.t., 3 h; Yield given;