Download full text in 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. ... Five different 2 -pyrrole-1-oxides have been prepared by dehydrogenation of their corresponding pyrroline-1-oxide presursors and characterized by 1,3-dipolar cycloadditions with dimethyl ethyne dicarboxylate and/or N-phenyl maleic imide. ... Taken in part from the planned doctorate ...