potassium carbonate in dimethyl sulfoxide 120 h; Ambient temperature;

potassium carbonate 1.) DMF, 95-100 deg C, 2 h, 2.) 95-100 deg C, 12 h; Yield given. Multistep reaction;

potassium hydroxide; formic acid; dihydrogen peroxide 1) H2O, 70-80 deg C, 10 min; 2) H2O, 25 deg C, 15 h; 3) H2O, 95 deg C, 10 min; Yield given. Multistep reaction;