potassium fluoride in methanol 1.) 15 h, RT; 2.) 4 h, reflux;

Multi-step reaction with 2 steps 1: 98 percent / cc. HCl / dioxane / 0.5 h / 60 °C2: 98 percent / AlCl3 / CH2Cl2 / 24 h / 20 °C