Pd‐Catalyzed Cross‐Coupling of Terminal Alkynes with Ene‐yne‐ketones: Access to Conjugated Enynes via Metal Carbene Migratory Insertion.

A novel strategy for alkyne–alkyne cross-coupling has been developed under the palladium catalysis. In this reaction, ene-yne-ketones are employed as carbene precursors, which couple with terminal alkynes through the metal carbene migratory insertion process. Furan-substituted enynes are obtained in good yields and in a stereoselective manner.