1: 97 percent / NaH / benzene / 1.) 25 deg C, 30 min, 2.) 25 deg C, 6 h 2: aq. KOH / 3 h / Heating 3: H2 / 10percent Pd/C / 8 h / 2585.7 Torr View Scheme

hydrogen; palladium on activated charcoal in methanol Ambient temperature;

1: aq. KOH / 3 h / Heating 2: H2 / 10percent Pd/C / 8 h / 2585.7 Torr View Scheme