KHF2; hydrogen fluoride in various solvent(s) T=160°C; 1 h;

Multi-step reaction with 6 steps 1: 98 percent / pyridine / 3 h / Ambient temperature2: 1percent HCl / methanol / 30 h / Ambient temperature3: pyridine / 3 h / Ambient temperature4: AcOH, conc. H2SO4 / Ambient temperature5: 1.) HCl(g), AcCl, 2.) H2O / 1.) CH2Cl2, 0 deg C, 2.) CH3CN6: 1.) SO2Cl2 / 1.) CH2Cl2, DMF, from -40 deg C to RT, 3.5 h, 2.) CH2Cl2, DMF, RT, 15 h  

Multi-step reaction with 2 steps 1: 1.) HCl gas, AcCl, 2.) H2O / 1.) CH2Cl2, 0 deg C, 12 h, 2.) MeCN, 0 deg C, 30 min2: 1.) SO2Cl2 / 1.) CH2Cl2, DMF, room temperature, 3 h, 2.) room temperature, 20 h