1: With lithium hexamethyldisilazane in tetrahydrofuran T=-78°C; 0.75 h; Inert atmosphere; 2: With trifluoromethylsulfonic anhydride in tetrahydrofuran T=-78°C; 1.25 h; Ineret atmosphere; Further stages;

PPh3 gold(I) chloro complex; 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2.2.2]octane bis(tetrafluoroborate) in water; acetonitrile T=40°C; 2.16667 h; Schlenk techniqueInert atmosphere;

PPh3 gold(I) chloro complex; 1-(chloromethyl)-4-fluoro-1,4-diazoniabicyclo-[2.2.2]octane bis(tetrafluoroborate) in water; acetonitrile T=40°C; 2.16667 h; Schlenk techniqueInert atmosphere;

tricyclopentyl-phosphine in chloroform T=60°C; 48 h;