作者:Wei, Zhaoxin、Chen, Ziren、Xue, Fei、Yue, Yuancheng、Wu, Shaofeng、Zhang, Yonghong、Wang, Bin、Xia, Yu、Jin, Weiwei、Liu, Chenjiang
DOI:10.1039/d4gc02663b
日期:——
oxidative dehydrogenation of hydrosilanes with O-nucleophiles (e.g. phenols, naphthols, alcohols, and H2O) or hydrosilane self-condensation. The protocol employs a highly electrically conductive and recyclable ionic liquid as a catalyst, thus eliminating the need for external electrolytes and hydrogen atom transfer (HAT) agents. The ionic liquid could be easily recovered and reused for at least eight cycles
通过氢硅烷与 O-亲核试剂(例如苯酚、萘酚、醇和 H 2 O)的电化学氧化脱氢,开发了一种高效且可持续的 Si-O/Si-Si 键构建方法)或氢硅烷自缩合。该协议采用高导电性和可回收的离子液体作为催化剂,从而消除了对外部电解质和氢原子转移(HAT)剂的需要。该离子液体可以很容易地回收并重复使用至少八个周期,并且性能一致。值得注意的是,这种电化学方法表现出广泛的底物范围和高官能团兼容性(66 个示例,产率高达 96%)。初步机理研究表明,硅自由基是通过溴自由基和硅烷之间的氢原子转移过程产生的,KIE实验表明Si-H键断裂是反应的决定速率步骤。