potassium tert-butylate in dimethyl sulfoxide 1 h; Ambient temperature;

potassium tert-butylate in dimethyl sulfoxide 120 h; Ambient temperature;

1: 84 percent / Fe, Br2 / 1 h / Ambient temperature 2: 88 percent / N-bromosuccinimide, azobis(isobutyronitrile) / CCl4 / 24 h / Heating; Irradiation 3: 63 percent / NaOH / CCl4; ethanol; H2O / 2 h / Heating 4: 72 percent / tBuOK / dimethylsulfoxide / 1 h / Ambient temperature View Scheme

1: 63 percent / NaOH / CCl4; ethanol; H2O / 2 h / Heating 2: 72 percent / tBuOK / dimethylsulfoxide / 1 h / Ambient temperature View Scheme

1: 88 percent / N-bromosuccinimide, azobis(isobutyronitrile) / CCl4 / 24 h / Heating; Irradiation 2: 63 percent / NaOH / CCl4; ethanol; H2O / 2 h / Heating 3: 72 percent / tBuOK / dimethylsulfoxide / 1 h / Ambient temperature View Scheme