Two groups of triazolium salts based on the central triazole ring isomer Triazolium salts are chemical compounds based on the substituted triazole structural element.
They are composed of a cation based on a heterocyclic five-membered ring with three nitrogen atoms, two of which are functionalized and a corresponding counterion (anion).
[1] 1,3,4-trisubstituted-1,2,3-triaolium salts can be synthesized from 3,4-disubsituted-1,2,4-triazol molecule by quaternization of the 1 nitrogen.
This quaternization can be done by reaction with alkyl iodides (or other alkyl halide, albeit less yield is generally observed due to less reactivity, alkyl fluoride are rarely seen as they are mostly unreactive) yielding the corresponding 1,3,4-trisubstituted 1,2,3-triazolium salt with iodine.
1,4-disubstituted 1,2,4-triaolium salts can be synthesized from 4-subsituted 1,2,4-triazol molecule by quaternization of the 1 nitrogen.