Copper-catalyzed one-pot tandem synthesis of unsymmetrical diaryl chalcogenides from two different aryl iodides
摘要:
Unsymmetrical diaryl chalcogenides were synthesized by a novel one-pot tandem process from two different aryl iodides. A symmetrical diaryl dichalcogenide (ArEEAr, E = Se or Te) was initially obtained by a Cu2O-cataylzed coupling reaction of An with elemental selenium or tellurium in the presence of KOH. Without purification, it was subsequently coupled with a different aryl iodide (Ar'I) to give the unsymmetrical diaryl chalcogenides (ArEAr') in good yields. (C) 2015 Elsevier Ltd. All rights reserved.