Abstract
With KI as catalyst and m-chloroperbenzoic acid as the oxidant in acetic acid, a novel and efficient catalytic procedure has been developed for acetoxyselenenylation of alkenes, which providing a series of 2-acetoxy-1-selenenylation compounds with high regioselectivity and good yields in mild conditions. In this protocol, KI is first oxidized by m-chloroperbenzoic acid into acetylhypoiodite, which rapidly reacts with diselenide to form the active electrophilic selenenylating reagent, following an electrophilic addition of alkenes and 2-acetoxy-1-selenenylation compounds are obtained. The suitable equivalent ratio of alkene to diselenide is 1.2.
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