Factors Affecting the Rates of Addition of Free Radicals to AlkenesDetermination of Absolute Rate Coefficients Using the Persistent Aminoxyl Method
作者:Athelstan L. J. Beckwith、James S. Poole
DOI:10.1021/ja025730g
日期:2002.8.1
The rate of coupling of alkyl radicals with the persistent aminoxyl radical 1,1,3,3-tetramethylisoindolin-N-oxyl (1) has been used as a kinetic probe to determine absolute rate coefficients for the addition of alkyl radicals to methyl acrylate. The results are discussed in terms of the role of the structure and functionalization of the attacking radical on the rates of addition, particularly as they
烷基自由基与持久性氨氧基自由基 1,1,3,3-四甲基异吲哚啉-N-氧基 (1) 的偶联速率已被用作动力学探针,以确定烷基自由基添加到丙烯酸甲酯的绝对速率系数。根据攻击自由基的结构和官能化对添加速率的作用讨论结果,特别是当它们影响空间、极性和焓因子时。氨酰方法与其他确定自由基添加速率系数的方法进行了比较。