1: 65 percent / CH3COOAg / H2O / 1 h / Heating 2: 83 percent / PCl3 / CHCl3 View Scheme

silver(I) acetate in water 1 h; Heating;

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

Multi-step reaction with 2 steps 1: 79 percent / CH3COCl / 1 h / Ambient temperature2: 51 percent / 100percent N2H4 / ethanol / 1.) 1 h, room temperature; 2.) 12 h, 0 deg C