sodium hydride 1.) ether, RT, 2.5 h, 2a.) ether, reflux, 2 h, 2b.) THF, reflux, 3 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

1: H2 / Pd/C / tetrahydrofuran / 20 °C 2: 85 percent / I2; KI / 1,2-dichloro-ethane; H2O / 1 h / Heating View Scheme