1: 78 percent / NaH / benzene / 1.) reflux, 20 min; 2.) 12 h, room temp. 2: 95 percent / H2, / 5percent Rh-Al2O3 / tetrahydrofuran; various solvent(s) / 48 h / 2068.6 Torr 3: 96 percent / 2 h / 120 °C View Scheme

1: 78 percent / NaH / benzene / 1.) reflux, 20 min; 2.) 12 h, room temp. 2: 95 percent / H2, / 5percent Rh-Al2O3 / tetrahydrofuran; various solvent(s) / 48 h / 2068.6 Torr 3: 96 percent / 2 h / 120 °C View Scheme

1: 95 percent / H2, / 5percent Rh-Al2O3 / tetrahydrofuran; various solvent(s) / 48 h / 2068.6 Torr 2: 96 percent / 2 h / 120 °C View Scheme

T=120°C; 2 h;