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.
Keywords: Diphenyl disulfide/diselenide, directing group, C-H activation, thiolation, selenylation, redox properties.
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