toluene-4-sulfonic acid in methanol 2 h; Heating;

1: 91.6 percent / p-toluenesulfonic acid / diethyl ether / 3 h / 19 - 20 °C 2: 90.1 percent / Na / diethyl ether; xylene / 10 h / 25 - 30 °C 3: 97.8 percent / p-toluenesulfonic acid / methanol / 2 h / Heating 4: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 5: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 6: 86.6 percent / Na / H2O; xylene; diethyl ether 7: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 93.4 percent / LiAlH4 / diethyl ether / 0.5 h / Heating 2: 91.6 percent / p-toluenesulfonic acid / diethyl ether / 3 h / 19 - 20 °C 3: 90.1 percent / Na / diethyl ether; xylene / 10 h / 25 - 30 °C 4: 97.8 percent / p-toluenesulfonic acid / methanol / 2 h / Heating 5: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 6: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 7: 86.6 percent / Na / H2O; xylene; diethyl ether 8: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 93.4 percent / LiAlH4 / diethyl ether / 0.5 h / Heating 2: 91.6 percent / p-toluenesulfonic acid / diethyl ether / 3 h / 19 - 20 °C 3: 90.1 percent / Na / diethyl ether; xylene / 10 h / 25 - 30 °C 4: 97.8 percent / p-toluenesulfonic acid / methanol / 2 h / Heating 5: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 6: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 7: 86.6 percent / Na / H2O; xylene; diethyl ether 8: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 2: 86.6 percent / Na / H2O; xylene; diethyl ether 3: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 2: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 3: 86.6 percent / Na / H2O; xylene; diethyl ether 4: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 92.2 percent / NaI / acetone / 2 h / Heating 2: 1.) Na; 2.) 3 N H2SO4 / 1.) ether, xylene, 35 -40 deg C, 10 h 3: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 4: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 5: 86.6 percent / Na / H2O; xylene; diethyl ether 6: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 1.) Na; 2.) 3 N H2SO4 / 1.) ether, xylene, 35 -40 deg C, 10 h 2: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 3: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 4: 86.6 percent / Na / H2O; xylene; diethyl ether 5: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 90.1 percent / Na / diethyl ether; xylene / 10 h / 25 - 30 °C 2: 97.8 percent / p-toluenesulfonic acid / methanol / 2 h / Heating 3: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 4: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 5: 86.6 percent / Na / H2O; xylene; diethyl ether 6: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme

1: 97.8 percent / p-toluenesulfonic acid / methanol / 2 h / Heating 2: 93.8 percent / 48percent HBr / H2O; cyclohexane / 48 h / 80 °C 3: 98.6 percent / p-toluenesulfonic acid / diethyl ether / 2 h / 19 - 20 °C 4: 86.6 percent / Na / H2O; xylene; diethyl ether 5: 85.1 percent / p-toluenesulfonic acid / methanol / 2 h / Heating View Scheme