1: 77 percent / H2 / RhCl(PPh3)3 / benzene / 24 h 2: 1.) NaIO4, 2.) sodium bicarbonate / 1.) H2O, CH3OH, room temperature, overnight, 2.) toluene, reflux, 16 h 3: alkaline hydrolysis View Scheme

1: 77 percent / H2 / RhCl(PPh3)3 / benzene / 24 h 2: 1.) NaIO4, 2.) sodium bicarbonate / 1.) H2O, CH3OH, room temperature, overnight, 2.) toluene, reflux, 16 h View Scheme