1: I2; NaHCO3 / ethanol 2: Lawesson's reagent / toluene / 0.5 h / Heating 3: H2S / ethanol / pH 7.4 4: I2; NaHCO3 / ethanol 5: Hg(OAc)2; AcOH / CHCl3 / 0.5 h / 20 °C 6: H2S / ethanol / pH 7.4 7: 90 percent / Lawesson's reagent / toluene / 0.5 h / Heating 8: ethanol / Heating 9: I2; NaHCO3 / ethanol 10: Lawesson's reagent / toluene / 0.5 h / Heating 11: H2S / ethanol / pH 7.4 12: I2; NaHCO3 / ethanol 13: Hg(OAc)2; AcOH / CHCl3 / 0.5 h / 20 °C 14: H2S / ethanol / pH 7.4 15: 90 percent / Lawesson's reagent / toluene / 0.5 h / Heating 16: 77 percent / Lawesson's reagent / toluene / 3 h / Heating 17: ethanol / Heating 18: P4S10 / xylene / 2 h / Heating 19: ethanol / Heating 20: Hg(OAc)2; AcOH / CHCl3 / 0.5 h / 20 °C 21: I2; NaHCO3 / ethanol 22: Lawesson's reagent / toluene / 0.5 h / Heating 23: H2S / ethanol / pH 7.4 24: P4S10 / xylene / 2 h / Heating 25: ethanol / Heating 26: P4S10 / xylene / 2 h / Heating 27: ethanol / Heating 28: P4S10 / xylene / 2 h / Heating 29: ethanol / Heating 30: I2; NaHCO3 / ethanol 31: H2S / ethanol / pH 7.4 32: P4S10 / xylene / 2 h / Heating 33: ethanol / Heating 34: P4S10 / xylene / 2 h / Heating View Scheme

Lawesson's reagent in toluene 0.5 h; Heating;