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

A multi-step continuous-flow electrochemical 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 oxidation cyclization directly generates the corresponding cyclic iodonium salts.

• Julian Spils¹
• Thomas Wirth²
• Boris J. Nachtsheim¹

• ¹Institute for Organic and Analytical Chemistry, University of Bremen, Leobener Straße 7, 28359 Bremen
• ²School of Chemistry, Cardiff University, Park Place, Main Building, Cardiff CF10 3AT (UK)

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