A direct method based on hydride exchange for determining the redox potentials of 1,4-dihydropyridines related structurally to nicotine adenine dinucleotide (NADH)
Abstract
The relative two-electron redox potentials of N-substituted 1,4-dihydropyridines related to NADH can be determined by a direct method in which the equilibrium composition of a 1,4-dihydropyridine–pyridinium salt mixture is determined by 1H n.m.r. spectroscopy.