Gold-Catalyzed Oxidative Cyclization Involving Nucleophilic Attack to the Keto Group of α,α′-Dioxo Gold Carbene and 1,2-Alkynyl Migration: Synthesis of Furan-3-carboxylates
作者:Ali Wang、Mingduo Lu、Yuanhong Liu
DOI:10.1021/acs.orglett.1c02389
日期:2021.9.3
for the synthesis of functionalized furan-3-carboxylates based on gold-catalyzed oxidative cyclization of diynones with alcohols or water has been developed. Mechanisticstudies revealed that a rare nucleophilic attack to the carbonyl group of the α,α′-dioxo gold carbene instead of the carbene center and 1,2-alkynyl group migration were involved in this transformation. This method offers several advantages