1: 95 percent / acetonitrile / 4 h / Ambient temperature 2: 84.6 percent / ethanol; H2O / 24 h / Heating View Scheme

1: 95 percent / acetonitrile / 4 h / Ambient temperature 2: 84.6 percent / ethanol; H2O / 24 h / Heating 3: 1.) potassium iodide; 2.) lead tetraacetate / 1.) glacial CH3COOH, 60 dec C, 15-20 min; 2.) 1 h. 4: 87 percent / sodium methoxide / CH2Cl2; methanol / 1 h / Ambient temperature View Scheme

1: 95 percent / acetonitrile / 4 h / Ambient temperature 2: 84.6 percent / ethanol; H2O / 24 h / Heating 3: manganese(III) acetate monohydrate / acetic acid / 6 h / bath temperature 105 deg C View Scheme

in benzene 0.25 h; Heating;