manganese(IV) oxide in toluene 24 h; Heating;

1: benzene / 0.5 h / 0 °C 2: 1.) butyllithium, diisopropylamine / 1.) Et2O, -70 deg C, 1 h; 2.) Et2O, -70 deg C, 2 h 3: 100 percent / MnO2 / toluene / 24 h / Heating View Scheme

1: PCl5 / 3 h / Heating 2: benzene / 0.5 h / 0 °C 3: 1.) butyllithium, diisopropylamine / 1.) Et2O, -70 deg C, 1 h; 2.) Et2O, -70 deg C, 2 h 4: 100 percent / MnO2 / toluene / 24 h / Heating View Scheme

1: 1.) butyllithium, diisopropylamine / 1.) Et2O, -70 deg C, 1 h; 2.) Et2O, -70 deg C, 2 h 2: 100 percent / MnO2 / toluene / 24 h / Heating View Scheme