作者:Zhang, Xiaoyu、Yang, Shangru、Zeng, Xiaoming
DOI:10.1021/acs.joc.4c00466
日期:——
rearrangement of sterically congested cyclic (amino)(aryl)carbenes (CAArCs) by the reaction of related iminium salts with potassium bis(trimethylsilyl)amide is reported, allowing for forming benzocyclobutanimines via a ring contraction process. Mechanistic studies by theoretical calculations indicate that the formation of conjugated ketenimines as intermediates could be considered, in which steric hindrance
据报道,通过相关亚胺盐与双(三甲基甲硅烷基)酰胺钾的反应,空间拥挤的环状(氨基)(芳基)卡宾(CAArC)发生重排,从而通过环收缩过程形成苯并环丁胺。通过理论计算的机理研究表明,可以考虑形成共轭烯酮亚胺作为中间体,其中CAArCs的N-烷基基序引起的空间位阻在促进C-N键断裂开环方面发挥着重要作用。