Abstract
AbstractThe synthesis of spirocyclic amide acetals (33–93 %) has been achieved through Ru(II)‐catalyzed condensations ofN‐carbamate protected pyrrolidinones with metal carbenes derived from α‐diazo‐β‐ketoesters. Thanks to the mildness of the diazo decomposition conditions induced by a 1 : 1 combination of [CpRu(MeCN)3][BArF] and 1,10‐phenanthroline, the formation of the sensitive products is possible. Full characterization of this carbonyl‐ylide mediated process is provided by DFT calculations.
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