2-pentafluorophenyl-6,17dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate; N-ethyl-N,N-diisopropylamine in dichloromethane T=20°C; 24 h; Inert atmosphere;

silver(l) oxide in tetrahydrofuran; water T=25°C; 13 h;