Deacylative Thiolation by Redox‐Neutral Aromatization‐Driven C−C Fragmentation of Ketones
Xukai Zhou, Daniel Pyle, Zining Zhang, Guangbin Dong
Abstract
Herein we report the development of deacylative thiolation of diverse methyl ketones. The reaction is redox-neutral, and heavy-metal-free, which provides a new way to introduce thioether groups site-specifically to unactivated aliphatic positions. It also features excellent functional group tolerance and broad substrate scope, thus allowing late-stage derivatization. The process benefits from efficient condensation between the activation reagent and ketone substrates, which triggers aromatization-driven C-C fragmentation and rapid radical coupling with thiosulfonates. Experimental and computational mechanistic studies suggest the involvement of a radical chain pathway.
Topics & Concepts
ChemistryAromatizationKetoneReagentRedoxFunctional groupThioetherCombinatorial chemistryFragmentation (computing)Substrate (aquarium)PhotochemistryStereochemistryOrganic chemistryCatalysisGeologyOceanographyOperating systemPolymerComputer scienceSulfur-Based Synthesis TechniquesCatalytic C–H Functionalization MethodsRadical Photochemical Reactions