Metal-free visible-light-promoted C(sp<sup>3</sup>)–H functionalization of aliphatic cyclic ethers using trace O<sub>2</sub>
作者:Ben Niu、Bryan G. Blackburn、Krishnakumar Sachidanandan、Maria Victoria Cooke、Sébastien Laulhé
DOI:10.1039/d1gc03482k
日期:——
Presented is a light-promoted C–C bond forming reaction yielding sulfone and phosphate derivatives at room temperature in the absence of metals or photoredox catalyst. This transformation proceeds in neat conditions through an auto-oxidationmechanism which is maintained through the leaching of trace amounts of O2 as sole green oxidant.
Controlling Selectivity in Shuttle Hetero‐difunctionalization Reactions: Electrochemical Transfer Halo‐thiolation of Alkynes
作者:Xichang Dong、Martin Klein、Siegfried R. Waldvogel、Bill Morandi
DOI:10.1002/anie.202213630
日期:2023.1.9
Shuttle catalysis is emerging as a potent strategy to unleash unprecedented synthetic flexibility in organic synthesis. Herein, we disclose a rare example of shuttle hetero-difunctionalization to transfer two distinct functional groups between β-halosulfides and alkynes with excellent chemo-, regio-, and stereoselectivity via a paired electrolysis process. This unfolds new opportunities for selective