Multistep reaction;

1: H2 / 10percent Pd/C / methanol / 6 h 2: 1.) KOtBu / 1.) DMF, RT, 1.5 h, 2.) DMF, RT, 1.5 h 3: H2 / 10percent Pd/C / benzene / 3.5 h / 35 °C View Scheme