toluene-4-sulfonic acid in benzene

1: benzene / Heating 2: p-toluenesulfonic acid / benzene / Heating View Scheme

1: 82 percent / tetrahydrofuran; diethyl ether / 0.5 h / 0 °C 2: 72 percent / acetic acid / 60 °C 3: benzene / Heating 4: p-toluenesulfonic acid / benzene / Heating View Scheme

1: 87 percent / aluminum chloride / 85 - 90 °C 2: 78 percent / sodium hydroxide; sodium borohydride / H2O / 70 h / 20 °C 3: 82 percent / tetrahydrofuran; diethyl ether / 0.5 h / 0 °C 4: 72 percent / acetic acid / 60 °C 5: benzene / Heating 6: p-toluenesulfonic acid / benzene / Heating View Scheme

1: 72 percent / acetic acid / 60 °C 2: benzene / Heating 3: p-toluenesulfonic acid / benzene / Heating View Scheme

1: 87 percent / aluminum chloride / 85 - 90 °C 2: 78 percent / sodium hydroxide; sodium borohydride / H2O / 70 h / 20 °C 3: 82 percent / tetrahydrofuran; diethyl ether / 0.5 h / 0 °C 4: 72 percent / acetic acid / 60 °C 5: benzene / Heating 6: p-toluenesulfonic acid / benzene / Heating View Scheme

1: 78 percent / sodium hydroxide; sodium borohydride / H2O / 70 h / 20 °C 2: 82 percent / tetrahydrofuran; diethyl ether / 0.5 h / 0 °C 3: 72 percent / acetic acid / 60 °C 4: benzene / Heating 5: p-toluenesulfonic acid / benzene / Heating View Scheme

1: 87 percent / aluminum chloride / 85 - 90 °C 2: 78 percent / sodium hydroxide; sodium borohydride / H2O / 70 h / 20 °C 3: 82 percent / tetrahydrofuran; diethyl ether / 0.5 h / 0 °C 4: 72 percent / acetic acid / 60 °C 5: benzene / Heating 6: p-toluenesulfonic acid / benzene / Heating View Scheme