in acetonitrile 1 h; Heating;

1: 91.4 percent / POCl3 / 0.25 h / Heating 2: 79.6 percent / acetonitrile / 1 h / Heating View Scheme

1: 89.7 percent / K2CO3 / dimethylformamide / 3 h / 100 °C 2: 82 percent / 20percent NaOH / 43 h / Heating 3: 91.4 percent / POCl3 / 0.25 h / Heating 4: 79.6 percent / acetonitrile / 1 h / Heating View Scheme

1: 82 percent / 20percent NaOH / 43 h / Heating 2: 91.4 percent / POCl3 / 0.25 h / Heating 3: 79.6 percent / acetonitrile / 1 h / Heating View Scheme

1: 98.1 percent / ethanol / 3 h / Heating 2: 89.5 percent / concd HNO3, concd H2SO4 / 1.5 h / 60 - 70 °C 3: 78.2 percent / Fe, AcOH / 1 h / 80 °C 4: 1.) 1 N HCl, aq. NaNO2, 2.) aq. 65percent HPF6 / 1.) 0-3 deg C, 5 min 5: 36.2 percent / heptane / 0.25 h / Heating 6: 82 percent / 20percent NaOH / 43 h / Heating 7: 91.4 percent / POCl3 / 0.25 h / Heating 8: 79.6 percent / acetonitrile / 1 h / Heating View Scheme

1: 89.5 percent / concd HNO3, concd H2SO4 / 1.5 h / 60 - 70 °C 2: 78.2 percent / Fe, AcOH / 1 h / 80 °C 3: 1.) 1 N HCl, aq. NaNO2, 2.) aq. 65percent HPF6 / 1.) 0-3 deg C, 5 min 4: 36.2 percent / heptane / 0.25 h / Heating 5: 82 percent / 20percent NaOH / 43 h / Heating 6: 91.4 percent / POCl3 / 0.25 h / Heating 7: 79.6 percent / acetonitrile / 1 h / Heating View Scheme

1: 1.) 1 N HCl, aq. NaNO2, 2.) aq. 65percent HPF6 / 1.) 0-3 deg C, 5 min 2: 36.2 percent / heptane / 0.25 h / Heating 3: 82 percent / 20percent NaOH / 43 h / Heating 4: 91.4 percent / POCl3 / 0.25 h / Heating 5: 79.6 percent / acetonitrile / 1 h / Heating View Scheme

1: 78.2 percent / Fe, AcOH / 1 h / 80 °C 2: 1.) 1 N HCl, aq. NaNO2, 2.) aq. 65percent HPF6 / 1.) 0-3 deg C, 5 min 3: 36.2 percent / heptane / 0.25 h / Heating 4: 82 percent / 20percent NaOH / 43 h / Heating 5: 91.4 percent / POCl3 / 0.25 h / Heating 6: 79.6 percent / acetonitrile / 1 h / Heating View Scheme

1: 36.2 percent / heptane / 0.25 h / Heating 2: 82 percent / 20percent NaOH / 43 h / Heating 3: 91.4 percent / POCl3 / 0.25 h / Heating 4: 79.6 percent / acetonitrile / 1 h / Heating View Scheme