The pKa, values of 15 N‐substituted 5,5‐diethylbarbituric acids containing phenyl, benzyl and benzoyl moieties have been determined. The qualitative and quantitative effects of substitution at the N‐1 atom on the pKa, value are discussed.
已确定含有苯基、苄基和苯甲酰基部分的 15 N-取代的 5,5-
二乙基巴比妥酸的 pKa 值。讨论了 N-1 原子取代对 pKa 值的定性和定量影响。