Flavin receptors. Effect of the acidity of melamine derivatives bearing a 2-arylguanidinium ion on 6-azaflavin binding in chloroform

Article abstract of DOI:10.1246/bcsj.73.2539

The pK(a)'s of melamine derivatives beating a 2-arylguanidinium ion and their binding constants for 6-aza-10dodecylisoalloxazine (6-azaflavin) were nicely correlated with the Hammett o of the substituents. However, the rates of the oxidations of N-benzyl-