manganese(IV) oxide in ethyl acetate 5 h; Heating;

1: 95 percent / K2CO3 / acetone / Heating 2: 83 percent / 85 percent KOH / methanol; tetrahydrofuran / 6 h / Heating 3: 90 percent / BH3*(CH3)2S / tetrahydrofuran / 0 - 60 °C 4: 91 percent / MnO2 / ethyl acetate / 5 h / Heating View Scheme

1: 83 percent / 85 percent KOH / methanol; tetrahydrofuran / 6 h / Heating 2: 90 percent / BH3*(CH3)2S / tetrahydrofuran / 0 - 60 °C 3: 91 percent / MnO2 / ethyl acetate / 5 h / Heating View Scheme

1: 90 percent / BH3*(CH3)2S / tetrahydrofuran / 0 - 60 °C 2: 91 percent / MnO2 / ethyl acetate / 5 h / Heating View Scheme