its p-bromo and p-cyano derivatives, (3) O-benzyl-N-phenylhydroxylamine, (4) N-benzoylphenylhydroxylamine and its p-bromo and p-cyano derivatives, and (5) N-hydroxylpiperidine. The BDEs of the O−H and/or N−H bonds in these 11 weak acids have been estimated by combining their pKHA values with the oxidation potentials of their conjugate bases according to the following equation: BDEHA = 1.37pKHA + 23.1Eox(A-)
已测量以下
羟胺在
DMSO 中的平衡酸度(pKHA 值):(1) N-
苯基
羟胺及其对
溴和对
氰基衍
生物,(2) N-
苄基-N-
苯基
羟胺及其对
溴和对
氰基衍
生物,(3) O-
苄基-N-
苯基
羟胺,(4) N-
苯甲酰基
苯基
羟胺及其对
溴和对
氰基衍
生物,以及 (5) N-羟基
哌啶。这 11 种弱酸中 OH 和/或 NH 键的 BDEs 已通过将它们的 pKHA 值与其共轭碱的
氧化电位结合起来估计,根据以下等式:B
DEHA = 1.37pKHA + 23.1Eox(A -) + 73.3 kcal/mol。