sodium hydride 1.) DMF, 2.) DMF, RT, 12 h; Yield given. Multistep reaction;

1: 1.) 60percent NaH / 1.) DMA, 0 deg C, 2.) DMA, 100 deg C,30 min 2: 49 percent / POCl3 / 1 h / Heating 3: 86 percent / 28percent aq. NH3 / tetrahydrofuran / Ambient temperature 4: sodium hydrosulfite / ethanol; H2O / 0.17 h / 80 °C 5: 1 h / Heating 6: 1.) 60percent NaH / 1.) DMF, 0 deg C, 2.) DMF, RT, 5 h View Scheme