The use of organoselenium compounds in the copper-catalyzed Huisgen
1,3-dipolar cycloaddition of azido arylselenides with various alkynes
is described. Arylseleno-1,2,3-triazoles are prepared in excellent
yields via reaction of amino arylselenides with iso-pentylnitrite
and trimethylsilyl azide, and subsequent copper-catalyzed 1,3-dipolar
cycloaddition of the resulting azido arylselenides with alkynes.
The cycloaddition is also performed under mild conditions with several
azido arylselenides and phenylacetylene to afford the corresponding
arylseleno-1,2,3-triazoles in good to excellent yields. This click
chemistry protocol represents an efficient method to produce new
selenium-nitrogen compounds.
organoselenium compounds - azides - click chemistry - 1,2,3-triazoles