Silver-Mediated\nAcetoxyselenylation of Alkynes: Mild\nStereoselective Access to Bifunctional Alkenes

Herein, we report a AgF-mediated regio- and stereoselective\nacetoxyselenylation\nof terminal/internal alkynes from iodobenzene dicarboxylate [PhI(OCOR)<sub>2</sub>] and diorganyl diselenides via multiple-site functionalization\nto afford β-selenyl enol esters in good yields. Alkynes derived\nfrom bioactive molecules, such as l(−)-borneol, l-menthol, and acyne oxalate, are also suitable for this transformation\nand afford the expected compounds.