1: 76 percent / t-C4H9-OOH, aq. 40percent Triton B, OsO4 / 2-methyl-propan-2-ol / 0 °C 2: 2-acetoxybenzoyl bromide / 2 h / 100 °C View Scheme

1: 48 percent / Pb(OAc)4, Cu(OAc)2, pyridine / benzene / 8 h / Heating 2: 76 percent / t-C4H9-OOH, aq. 40percent Triton B, OsO4 / 2-methyl-propan-2-ol / 0 °C 3: 2-acetoxybenzoyl bromide / 2 h / 100 °C View Scheme

2-Acetoxybenzoyl bromide T=100°C; 2 h; Title compound not separated from byproducts;