triethylamine in dichloromethane 1 h;

1: 87 percent / tosylate de fluoro-2 N-methyl pyridinium, triethylamine / CH2Cl2 / 0.5 h / Ambient temperature 2: 42 percent / benzene; CHCl3 / 1 h / Heating View Scheme

in chloroform; benzene 1 h; Heating;