SEARCH Articles Figures Tables A- pyridinium betaines Alcalde, E., Heterocyclic Betaines Pyridinium Azolate Inner Betain Betaine Betaines, heterocyclic pyridinium and imidazolium azolate inner Cycloaddition pyridinium betaines Heterocyclic betaines: pyridinium Heterocyclic betaines: pyridinium azolate inner salts with several interannular Heterocyclic betaines: pyridinium imidazolium) azolate inner salts with Heterocyclic betaines: pyridinium linkages Heterocyclic betaines: pyridinium several interannular linkages Pyridinium betaines acid esters Pyridinium phosphate betaines Pyridinium-N-phenoxide betaine dye Pyridinium-N-phenoxide betaines