2013•Letters in Organic ChemistryRequires access

Halogen Exchange via a Halogenation of Diaryliodonium Salts with Cuprous Halide

Jian Li, Li Liu, Dong Ding, Jiangtao Sun

Abstract

An efficient halogenation reaction has been developed with diaryliodonium salts and cuprous halides. Various diaryliodonium salts 1 could perform the reaction with readily available CuBr or CuCl in CH3CN at 80°C, assembling bromoarenes or chloroarenes in up to 92% yields. This provides us a method for the transformation from iodoarenes to other haloarenes. Keywords: Diaryliodonium salts, Halogenation, Cuprous halide, Aromatic halides, Iodoarenes.

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Key concepts: Halogenation, Halide, Chemistry, Halogen, Organic chemistry, Combinatorial chemistry, Alkyl