Synergistic Rhodium/Copper Catalysis: Synthesis of 1,3-Enynes and N-Aryl Enaminones.

Synergistic rhodium/copper catalysis enables new three-component coupling reactions of terminal alkynes and α-diazoketones and/or arylamines, allowing dediazotized carbene C-H insertion for the synthesis of functionalized 1,3-enynes and N-aryl enaminones with high stereoselectivity. The synthetic utility of these transformations results in subsequent C-C or/and C-N bond-forming reactions to effectively build up functional molecules with potential significance.