Palladium-Catalyzed Synthesis of Conjugated Allenynes via Decarboxylative Coupling
作者:Mary K. Smith、Jon A. Tunge
DOI:10.1021/acs.orglett.7b01751
日期:2017.10.20
A new strategy to access conjugated allenynes via a decarboxylativecoupling of propargyl esters of propiolates has been developed. In this process, allenyl-palladium intermediates are coupled with acetylides that are generated in situ to form the conjugated allenynes. Finally, the coupling is demonstrated to be highly stereospecific, providing a route to enantioenriched allenes.