作者:Guo, Ping、Song, Xuedong、Huang, Banruo、Zhang, Ruixue、Zhao, Jie
DOI:10.1002/anie.202405449
日期:——
Photoinduced zirconocene catalysis was utilized to achieve the reductive coupling of ethers with remarkable activity and cross-selectivity. Mechanistic investigation revealed that photoexcitation of low-valent zirconocene facilitates the scission of benzylic C(sp3)−O bonds, resulting in benzylic radicals that recombine with Zr center. Subsequent carbomagnesiation generates benzylic Grignard reagents
利用光诱导二茂锆催化实现醚的还原偶联,具有显着的活性和交叉选择性。机理研究表明,低价二茂锆的光激发促进了苄基C( sp3 )−O键的断裂,产生与Zr中心重组的苄基自由基。随后的碳镁化生成苄基格氏试剂,用于下游与脂肪族醚的偶联。