Zinc-Catalyzed Cyclization of Alkynyl Derivatives: Substrate Scope and Mechanistic Insights
作者:Marc Martínez de Sarasa Buchaca、Miguel A. Gaona、Luis F. Sánchez-Barba、Andrés Garcés、Ana M. Rodríguez、Antonio Rodríguez-Diéguez、Felipe de la Cruz-Martínez、José A. Castro-Osma、Agustín Lara-Sánchez
DOI:10.1021/acs.inorgchem.4c00832
日期:2024.7.29
lactone products under mildreaction conditions. Kinetic studies have been performed and confirmed that reactions are first-order in [catalyst] and zero-order in [alkynyl substrate]. DFT calculations supported a reaction mechanism through the formation of the catalytically active species, an alkoxide-zinc intermediate, by a protonolysis reaction of the Zn–alkyl bond with the alcohol group of the substrate