potassium dichromate; sulfuric acid; mercury(II) trifluoroacetate 1.) oxidation, 2.) nitromethane, 20 deg C, 45 h; Yield given. Multistep reaction;

1: 90 percent / K2Cr2O7, H2SO4 2: 60 percent / Hg(OCOCF3)2 / nitromethane / 45 h / 20 °C View Scheme

1: 60 percent / 1.) K2Cr2O7, H2SO4, 2.) Hg(OCOCF3)2 / 1.) oxidation, 2.) nitromethane, 20 deg C, 45 h 2: p-TosOH / toluene / 0.42 h / 110 °C View Scheme