Visible light-mediated gold-catalyzed alkynylative cyclization of allenoates with iodoalkynes for the synthesis of β-alkynyl-γ-butenolides
Yuanhao He, Yu Zhong, Maria Ballarin Marion, Jorge C. Herrera Luna, Wanping Ma, Yan-Fei Hu, Cyril Ollivier, Virginie Mouriès‐Mansuy, Louis Fensterbank, Fen Zhao, Zhonghua Xia, Baomin Fan
Abstract
A method for the tandem cyclization/alkynylation of allenoates with iodoalkynes via gold catalysis under light irradiation is described. Mechanistic studies support that an energy-transfer event takes place, rather than a redox pathway.
Topics & Concepts
ChemistryTandemCatalysisAlkynylationCombinatorial chemistryRedoxNanotechnologyOrganic chemistryMaterials scienceComposite materialCatalytic Alkyne ReactionsCatalytic C–H Functionalization Methods