Enantioselective Synthesis of Dihydropyridinones via NHC-Catalyzed Aza-Claisen Reaction
摘要:
N-Heterocyclic carbene catalyzed aza-Claisen annulations of enals or their alpha'-hydrozyenone surrogates with vinylogous amides afford dihydropyridinones. The reaction proceeds with a broad range of substrates, and no nitrogen protecting group is required.