methanesulfonic acid; acetic acid T=35°C; 0.0333333 h;

1: Phosphorus pentachloride 2: CHCl3; benzene 3: 9 percent / Trioxane, CH3SO3H, Acetic anhydride / 1,2-dichloro-ethane / 4 h / 35 °C 4: 54 percent / CH3SO3H / acetic acid / 0.03 h / 35 °C / influence of react. time on the products, other time View Scheme

1: 9 percent / Trioxane, CH3SO3H, Acetic anhydride / 1,2-dichloro-ethane / 4 h / 35 °C 2: 54 percent / CH3SO3H / acetic acid / 0.03 h / 35 °C / influence of react. time on the products, other time View Scheme