Cu(OAc)2-Promoted Thiolation and Selenylation of C(sp2)-H Bonds Using a 2-Amino Oxazole Directing Group

Cu-catalyzed thiolation or selenylation of aryl C-H bonds with diaryl disulfides and diphenyl diselenides was accomplished using a readily removable directing group. This protocol represents a convenient route for the formation of valuable diaryl sulfides or diphenyl selenides. This simple method gives a variety of functionalized diphenyl sulfides or diphenyl selenides in moderate to good yields in a simple and efficient way.