Ring Contraction by Rearrangement of Sterically Congested Cyclic (Amino)(aryl)carbenes
作者:Xiaoyu Zhang、Shangru Yang、Xiaoming Zeng
DOI:10.1021/acs.joc.4c00466
日期:2024.6.7
rearrangement of stericallycongestedcyclic (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