作者:Taichi Koike、Tomoyuki Kosai、Takeaki Iwamoto
DOI:10.1002/chem.201901407
日期:2019.7.11
Cyclic (alkyl)(amino)silylene (CAASi) 1 has been found to successfully dehydrogenate 1,4‐dihydroaromatic compounds containing various substituents to afford the corresponding aromatic compounds. The observed high substrate generality proves 1 to be a potential 1,4‐dehydrogenation reagent for organic compounds. For the reaction with 9,10‐dimethyl‐9,10‐dihydroanthracene, silylene 1 activated not only
已发现环状(烷基)(氨基)亚甲硅烷基(CAASi)1成功地将含有各种取代基的1,4-二氢芳族化合物脱氢,得到相应的芳族化合物。所观察到的高底物通用性证明1是一种潜在的有机化合物1,4-脱氢试剂。对于与9,10-二甲基-9,10-二氢蒽的反应,甲硅烷基1不仅激活了苄基C-H键,而且还激活了芳族C-H键,生成了硅ph烯衍生物,这是硅烯前所未有的反应。CAASi 1与9,10-二氢蒽和1,4-环己二烯反应的实验和计算研究结果与CAASi 1,4-脱氢的观点一致1主要通过逐步吸氢机理进行。