Abstract
AbstractIn this work, we describe a new gold‐catalyzed oxidative cascade cyclization of conjugated enynamides. The reaction could be carried out under relatively mild condition. In presence of a cationic gold catalyst bearing an N‐heterocyclic carbene ligand, enynamides derived from tryptamine react with pyridine N‐oxide, leading to the formation of a variety of tetracyclic spiroindolines in a stereoselective manner.magnified image
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