Dual Oxidation of Epoxides with a High-Valent Cu(III)–CF<sub>3</sub> Compound and DMSO to Access 1,2-Diketones
作者:Dou-Dou Chen、Song-Lin Zhang
DOI:10.1021/acs.joc.3c01160
日期:2023.12.15
This study reports sequential dehydrogenation and transfer oxygenation of 1,2-diarylepoxides by high-valent phenCu(III)(CF3)3 and DMSO to produce 1,2-diketones. The Cu(III)–CF3 compound serves as a CF3 radical source to abstract the hydrogen atom of the epoxide ring. The resulting ether α-carbon radical undergoes ring-opening rearrangement to give a ketone α-carbon radical intermediate, which is oxygenated
本研究报道了高价 phenCu(III)(CF 3 ) 3和 DMSO 对 1,2-二芳基环氧化物进行连续脱氢和转移氧化,生成 1,2-二酮。 Cu(III)–CF 3化合物作为CF 3自由基源来夺取环氧化物环的氢原子。所得的醚 α-碳自由基经历开环重排,得到酮 α-碳自由基中间体,该中间体被 DMSO 氧化并释放出 Me 2 S。 Cu(III)-CF 3化合物和 DMSO 的组合可以可用于开发其他新颖的氧化反应。