1: 95 percent / 5percent HCl / ethanol; H2O / 16 h / Heating 2: 78 percent / n-BuLi / tetrahydrofuran; hexane / 18.5 h / 0 - 20 °C 3: 43 percent / hydrogen / 10percent Pd/C / ethanol / 48 h View Scheme

1: 95 percent / 5percent HCl / ethanol; H2O / 16 h / Heating 2: 78 percent / n-BuLi / tetrahydrofuran; hexane / 18.5 h / 0 - 20 °C 3: hydrogen / 10percent Pd/C / ethanol / 48 h View Scheme

1: 95 percent / 5percent HCl / ethanol; H2O / 16 h / Heating 2: 97 percent / magnesium / iodine / diethyl ether / 17 h / Ambient temperature; Heating View Scheme

1: 95 percent / 5percent HCl / ethanol; H2O / 16 h / Heating 2: 62 percent / LiAlH4 / diethyl ether / 1 h / Heating View Scheme

With  sodium hydride in  tetrahydrofuran; paraffin 16.5 h;  Heating;