A new class of unique quinoidal-like imidazoliumyl tetrazinides: synthesis, structure, and mechanism

A series of 6-oxo-3-(1,2,4,5-substituted-1 H -imidazol-3-ium-3-yl)-3,6-dihydro-1,2,4,5-tetrazin-3-ides was synthesized by the reaction of 3,6-dichloro- s -tetrazine with a variety of substituted imidazoles in the presence of trace water in solvents.