Decarbonylative Alkynylation

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Palladium-Catalyzed Decarbonylative Alkynylation of Aromatic Esters

Okita, T.; Kumazawa, K.; Takise, R.; Muto, K.;Itami, K. Yamaguchi, J. Chem Lett. 2016Advance Publication. DOI: 10.1246/cl.161001

A palladium-catalyzed decarbonylative alkynylation reaction of aromatic esters with terminal alkynes is reported. This reaction allows for a halogen-free Sonogashira coupling resulting in various aryl- and heteroarylalkynes. The utility of the reaction was demonstrated by orthogonal coupling reaction.

2016-11-28_17-48-50

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