toluene-4-sulfonic acid in benzene Heating;

1: 91 percent / H2 / palladium on carbon / petroleum ether / 2.5 h / 2844.3 Torr / Ambient temperature 2: 76 percent / NaH / diethyl ether / Ambient temperature 3: 78 percent / p-TsOH / benzene / Heating View Scheme

1: 76 percent / NaH / diethyl ether / Ambient temperature 2: 78 percent / p-TsOH / benzene / Heating View Scheme