Substituent Effects on the Electrophilic Activity of Nitroarenes in Reactions with Carbanions
作者:Sylwia Błażej、Mieczysław Mąkosza
DOI:10.1002/chem.200800821
日期:2008.12.8
as a model reaction because it meets key criteria, such as the wide range of substituents that can be present on the nitrobenzene ring, a low sensitivity to steric hindrance, and in particular the possibility of ensuring conditions in which the overall relative rates of reaction in competitive experiments are equal to the relative rates of nucleophilic addition. The values of relative rates of addition
通过将氢(VNS)的取代亲核取代与氯甲基苯基砜(1)的碳负离子确定对硝基苯的硝基的对位,邻位和间位的取代基,对亲电子活性的影响。给出相对于硝基苯的取代硝基芳烃的相对活性的值,将其作为标准。选择该过程作为模型反应是因为它符合关键标准,例如硝基苯环上可能存在的取代基范围广泛,对位阻的敏感性低,尤其是确保总体相对相对分子质量的条件的可能性。竞争性实验中的反应速率等于亲核加成的相对速率。相对添加率的值,