Two-Step Continuous-Flow Synthesis of 6-Membered Cyclic Iodonium Salts via Anodic Oxidation



A multi-step continuous-flow procedure for the generation of six-membered diaryliodonium salts was developed. This is a significant improvement of existing batch methods with regard to scalability and atom economy. The method uses easily accessible benzyl acetates in Friedel-Crafts-like alkylations while a subsequent anodic oxidative cyclization directly generates the corresponding cyclic iodonium salts.


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Graphical Abstract
Graphical Abstract