Abstract
AbstractAn efficient protocol for copper‐catalyzed C–S or C–Se bond formation between aryl iodides and easily available chalcogen sources leading to diaryl chalcogenides is reported. A variety of symmetrical diaryl sulfides and diaryl selenides were synthesized in good to excellent yields. Unsymmetrical diaryl sulfides were also obtained in moderate yields from two different aryl iodides by a one‐pot tandem process. This strategy was further successfully utilized for the synthesis of 2‐phenylbenzo[b]thiophene and of [1]benzothieno[3,2‐b]benzothiophene.
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