1: 50 percent / 1.) 40percent HBr, H2SO4; 2.) sodium nitrite / H2O / 1 h / 0 - 5 °C 2: 72 percent / sodium methoxide / methanol / 8 h / 180 °C / autoclave 3: 37 percent / m-chloroperbenzoic acid / acetone / 72 h / 20 °C 4: 43 percent / propan-2-ol / 0.5 h / Heating View Scheme

1: 37 percent / m-chloroperbenzoic acid / acetone / 72 h / 20 °C 2: 43 percent / propan-2-ol / 0.5 h / Heating View Scheme

1: 72 percent / sodium methoxide / methanol / 8 h / 180 °C / autoclave 2: 37 percent / m-chloroperbenzoic acid / acetone / 72 h / 20 °C 3: 43 percent / propan-2-ol / 0.5 h / Heating View Scheme

in isopropyl alcohol 0.5 h; Heating;