1: 62 percent / sulphur 2: 4 N NaOH / dimethylformamide / 0.17 h / 28 °C 3: dimethylformamide; H2O / 10 h View Scheme

sulfur in 1,4-dioxane; xylene 144 h; Heating;

nitrosyl chloride in chloroform T=0°C; Product distributionMechanism;

1: 88.2 percent / sulfur / xylene / 16 h / Heating 2: 81 percent / N2H4*H2O / ethanol / 8 h / Heating 3: 95.4 percent / NaNO2, glac.HOAc / H2O / 1 h / 0 °C 4: 72.5 percent / tetrahydrofuran / 10 h / Heating 5: 71.76 percent / 20percent KOH / ethanol / 2 h / Heating View Scheme

1: 57 percent / AcOH, Pb(OAc)4 / 15 h 2: 96 percent / NaOH / H2O; ethanol / 0.5 h / Heating View Scheme

1: 57 percent / AcOH, Pb(OAc)4 / 15 h 2: 1.) Na / 2.) 80 deg C View Scheme

1: 97 percent / S / xylene; dioxane / 144 h / Heating 2: 82 percent / LiBH4 / tetrahydrofuran / 9 h / Ambient temperature View Scheme

1: 97 percent / S / xylene; dioxane / 144 h / Heating 2: 82 percent / LiBH4 / tetrahydrofuran / 9 h / Ambient temperature 3: 70 percent / MnO2 / acetonitrile / 4.5 h / Heating 4: 96 percent / tetrahydrofuran / 2.5 h / 25 °C 5: 80 percent / MnO2 / acetonitrile / 1.5 h / Heating View Scheme

1: sulfur / xylene / Heating 2: NH3 / methanol View Scheme

1.1: trichloroisocyanuric acid; triethylamine / N,N-dimethyl-formamide / 2 h / -20 - 0 °C 2.1: hydrazine hydrate / pentan-1-ol / 7 h / 150 °C 3.1: hydrogenchloride; sodium nitrite / water / 1 h / 0 °C 4.1: o-xylene / 1 h / 160 °C 5.1: water; potassium hydroxide / ethanol / 2 h / Reflux 6.1: pyridine / 5 h / 20 °C 6.2: 1 h / 20 °C / Saturated solution 7.1: lithium aluminium tetrahydride / tetrahydrofuran / 2 h / Reflux 7.2: 2 h / 20 °C View Scheme