Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Functionalized 1,2,3-triazoles are prepared by 2+3 cycloaddition of resin bound α-azido esters with substituted alkynes. The reaction is regioselective when the electron-deficient alkyne methyl propiolate is used. ... Functionalized 1,2,3-triazoles are prepared by 2+3 cycloaddition of resin bound ...