Synthesis of Di- and Trivalent Carbohydrate Mimetics with Oxepane Substructure by Employing Copper-Catalyzed [3+2] Cycloadditions of Alkynes with Azidooxepanes
作者:Léa Bouché、Hans-Ulrich Reissig
DOI:10.1002/ejoc.201402191
日期:2014.6
efficient copper(II)-catalyzed diazo transfer reaction employing nonafluorobutanesulfonyl azide as nitrogen donor. These azidooxepanes underwent smooth copper(I)-catalyzed [3+2] cycloadditions with alkynes (click reaction) to provide a series of simple triazoles. With dialkynes and a trialkyne, bis- and tristriazoles containing oxepanesubstructures were prepared. Due to the polyhydroxylated end groups