1: 51 percent / 100percent N2H4 / ethanol / 1.) 1 h, room temperature; 2.) 12 h, 0 deg C 2: 65 percent / CH3COOAg / H2O / 1 h / Heating 3: 83 percent / PCl3 / CHCl3 View Scheme

1: 51 percent / 100percent N2H4 / ethanol / 1.) 1 h, room temperature; 2.) 12 h, 0 deg C 2: 65 percent / CH3COOAg / H2O / 1 h / Heating View Scheme

With  acetyl chloride 1 h;  Ambient temperature;   

With  hydrazine in  ethanol  1.) 1 h, room temperature; 2.) 12 h, 0 deg C;