1: 86 percent / Rh2(OAc)4 / benzene / 80 °C 2: 94 percent / Et3N / 25 °C 3: 86 percent / Et3N / Pd(PPh3)2Cl2 / acetonitrile / 25 °C 4: 100 percent / H2 / Pd/C / CHCl3 5: 96 percent / H2O2; CF3COOH / 25 °C 6: 98 percent / Otera's catalyst / toluene / 120 °C 7: 96 percent / H2 / Pd/C / methanol View Scheme