1: Raney nickel; methanol; ethyl acetate / Hydrogenation 2: pyridine; diethyl ether View Scheme

1: 68 percent / Zn, 25percent aq. HCl / ethanol / 2 h / Heating 2: 56 percent / 6.5 h / 150 °C 3: 46.4 percent / POCl3 / 5 h / Heating View Scheme

With  hydrogenchloride; zinc in  ethanol 2 h;  Heating;