sulfur(IV) fluoride; NAF in 1,2,2-trifluoro-trichloroethane T=80°C; 12 h;

1: NaN3 / dimethylsulfoxide / 10 h / 25 - 50 °C 2: 58 percent / NaF, SF4 / 1,1,2-trichloro-1,2,2-trifluoro-ethane / 12 h / 80 °C View Scheme