Studies on paraionic compounds. Anhydro-1-hydroxy-3-oxopyrazolo[1,2-a]pyrazolium hydroxides. Formation and stability of a novel series of 4n.pi. heterocyclic betaines
Studies on paraionic compounds. Anhydro-1-hydroxy-3-oxopyrazolo[1,2-a]pyrazolium hydroxides. Formation and stability of a novel series of 4n.pi. heterocyclic betaines