potassium hydroxide in ethanol 11 h; Ambient temperature;

potassium hydroxide in ethanol T=20°C; pH=8; 15 h; Title compound not separated from byproducts;

1: With potassium hydroxide in ethanol T=20°C; 12 h; 2: With hydrogenchloride; water in ethanol T=20°C; 4 h;

1.1: sulfur; morpholine; p-toluenesulfonic acid / 8 h / 120 - 130 °C 1.2: 64 percent / sodium hydroxide; tetrabutylammonium bromide / H2O / 8 h / 100 °C 2.1: 85 percent / phosphorus oxychloride / 1,2-dichloro-ethane / 16 h / 20 °C 3.1: 66 percent / pyridine hydrochloride / 3 h / 180 - 190 °C 4.1: potassium hydroxide / ethanol / 15 h / 20 °C / pH 8 View Scheme

1: 66 percent / pyridine hydrochloride / 3 h / 180 - 190 °C 2: potassium hydroxide / ethanol / 15 h / 20 °C / pH 8 View Scheme

1: 85 percent / phosphorus oxychloride / 1,2-dichloro-ethane / 16 h / 20 °C 2: 66 percent / pyridine hydrochloride / 3 h / 180 - 190 °C 3: potassium hydroxide / ethanol / 15 h / 20 °C / pH 8 View Scheme