toluene-4-sulfonic acid in xylene 48 h; Heating;

1: 64 percent / conc.HCl / 0.33 h 2: 15 mg / HCl / 96 h 3: 48 percent / pTsOH / xylene / 48 h / Heating View Scheme

1: 73 percent / conc. H2SO4 / 1 h 2: 68 percent / conc. HCl / 0.5 h 3: 19 percent / HCl / methanol / 48 h / Ambient temperature 4: 64 percent / NaOMe, NH3(gas) / methanol / 1008 h / Ambient temperature 5: 48 percent / pTsOH / xylene / 48 h / Heating View Scheme

1: 68 percent / conc. HCl / 0.5 h 2: 19 percent / HCl / methanol / 48 h / Ambient temperature 3: 64 percent / NaOMe, NH3(gas) / methanol / 1008 h / Ambient temperature 4: 48 percent / pTsOH / xylene / 48 h / Heating View Scheme

1: 15 mg / HCl / 96 h 2: 48 percent / pTsOH / xylene / 48 h / Heating View Scheme

1: 19 percent / HCl / methanol / 48 h / Ambient temperature 2: 64 percent / NaOMe, NH3(gas) / methanol / 1008 h / Ambient temperature 3: 48 percent / pTsOH / xylene / 48 h / Heating View Scheme

1: 64 percent / NaOMe, NH3(gas) / methanol / 1008 h / Ambient temperature 2: 48 percent / pTsOH / xylene / 48 h / Heating View Scheme

1: 87 percent / glacial acetic acid, conc. HCl / 4 h / Heating 2: 73 percent / conc. H2SO4 / 1 h 3: 68 percent / conc. HCl / 0.5 h 4: 19 percent / HCl / methanol / 48 h / Ambient temperature 5: 64 percent / NaOMe, NH3(gas) / methanol / 1008 h / Ambient temperature 6: 48 percent / pTsOH / xylene / 48 h / Heating View Scheme