“…N-Arylation of 1,2,3-triazoles is possible with activated aryl halides. Activated aryl halides such as 1-fluoro-2-nitrobenzene and 1-fluoro-4-nitrobenzene with 1H-1,2, 3-triazoles afforded mixtures of the corresponding 1-and 2-nitrophenyl-1,2,3-triazoles [115,116]. However, reactions with even more activated halides such as 1-fluoro-2,4-dinitrobenzene and 2-chloro(or fluoro)-1,3,5-trinitrobenzene provided only 1-substituted-1H-1,2,3-triazoles 84 (Scheme 12.35) [116].…”