Basicity of Azoles;VI.~1 Reaction of 1-Vinyl-2-formylimidazole and Its Cation with Water and Alcohols

摘要

The UV spectral of 1-vinyl-2-formylimidazole and its cation were interpreted and their hydration was tudied on the basis of quantum-chemical calculations of the UV spectra of these compounds. The cationic form is more actively hydrated. The equilibrium constants of dehydration of neutral molecules and their cations increase in the following order of substituents:1-vinylimidazole, pyridine, and 1-vinylbenzimidazole, in accordance with an increase in the basicity of these hetrocycles. The qualitative features of addition of alcohols to 1-vinyl-2-formylimidazole were considered