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