.ALPHA.,.BETA.-Epoxy sulfoxides as useful intermediates in organic synthesis. 26. Ring-opening fluorination of .ALPHA.,.BETA.-epoxy sulfoxides: A novel synthesis of .ALPHA.-fluoroketones.
A facile and efficient protocol for the α-benzoyloxylation of β-keto sulfides is presented. This methodology provides a step-economical, mild and practical access to highly functionalized α-O-benzoyloxy substituted β-keto sulfides, including those with quaternary carbons, which are not easily obtained through currently available methods.