Synthesis of Functionalized <i>N</i>-Sulfonylamidines from <i>N</i>-Sulfonylketenimines and 2-Aminobenzimidazole

<div><p></p><p>The synthesis of a novel class of N-(1H-benzo[d]imidazol-2-yl)-2-alkyl-N′-sulfonylacetamidines via a copper-catalyzed, three-component coupling reaction of 1H-benzo[d]imidazol-2-amine, sulfonyl azides, and terminal alkynes is described.</p></div>