Gold-Catalyzed Enynal and Enynol Coupling by Selectively Steering Two Transient Vinyl-Gold Intermediates
Zipeng Wang, Tongxiang Cao, Shifa Zhu
Abstract
The vinyl-gold bond is easily accessible but less exploited in homogeneous gold catalysis, which possesses weak nucleophilicity and would be likely to undergo protodemetalation. Herein, a gold-catalyzed enynal and enynol coupling by selectively steering two transient vinyl-gold intermediates is realized under mild conditions. It exhibits high atom economy and good tolerance of functional groups with the added benefit of operational simplicity. The control experiments indicated that the in situ formed vinyl-gold accounts for the reactivity.
Topics & Concepts
ChemistryCatalysisCoupling (piping)Transient (computer programming)Combinatorial chemistryPhotochemistryOrganic chemistryMaterials scienceMetallurgyComputer scienceOperating systemCatalytic Alkyne ReactionsCyclopropane Reaction MechanismsChemical synthesis and alkaloids