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Auto-tandem catalysis leading to oxazolidinones 3 by sequential PdI2/KI-catalyzed oxidative monoaminocarbonylation of propargylic amines 1 to give 2-ynamide intermediates I followed by PdI2/KI-catalyzed and water-promoted oxidative cyclocarbonylation of I (anionic iodide ligands are omitted for clarity).
