hydrazine hydrate in ethanol; acetone Heating;

With  jones' reagent in  acetone T=0°C;   

Multi-step reaction with 3 steps 1: 86 percent / sulfuric acid / methanol / 1.) 22 deg C, 24 h, 2.) reflux, 3 h2: 89 percent / lead tetraacetate / benzene / 0.5 h / 22 °C3: 79 percent / Jones' reagent / acetone / 0 °C