Thermodynamic characteristics of NADH/NAD<sup>+</sup> analogues in acetonitrile: 2-methyl, 4-methyl and 2,4-dimethyl 1-benzyl-dihydronicotinamides and the corresponding pyridinium species
作者:Agnès Anne、Jacques Moiroux
DOI:10.1139/v95-068
日期:1995.4.1
Procedures were elaborated for the syntheses of the title compounds. The thermodynamic changes brought about by each methyl substitution were then determined quantitatively. In acetonitrile, the respective one-electron oxidation and one-electron reduction potentials of the NADH and NAD+ analogues were obtained by means of direct and indirect (using ferrocene mediators) cyclic voltammetry. The redox
详细说明了合成标题化合物的程序。然后定量测定每个甲基取代所带来的热力学变化。在乙腈中,NADH 和 NAD+ 类似物各自的单电子氧化和单电子还原电位是通过直接和间接(使用二茂铁介质)循环伏安法获得的。正式氢化物转移的氧化还原电位是从类似物之间发生的平衡反应的研究中推导出来的。随之而来的是阳离子自由基的 pKa。关键词:NADH/NAD+ 甲基化类似物,单电子转移,氢化物转移,热力学。