Au-Catalyzed Piperidine Synthesis via Tandem Acyloxy Migration/Intramolecular [3 + 2] Cycloaddition of Enynyl Esters

Abstract

An Au-catalyzed tandem protocol involving enynyl ester isomerization and subsequent intramolecular [3 + 2] cyclization has been developed. This strategy provides an efficient approach for the synthesis of polyfunctional piperidines, which are subunits of many bioactive molecules.