Stereoselective Gold(I)‐Catalyzed Vinylcyclopropanation via Generation of a Sulfur‐Substituted Vinyl Carbene Equivalent
作者:Tengrui Yuan、Bram Ryckaert、Kristof Van Hecke、Jan Hullaert、Johan M. Winne
DOI:10.1002/anie.202012664
日期:2021.2.19
gold‐coordinated cationic vinyl carbene species, readily generated via a rearrangement of the ethylenedithioacetal of propargyl aldehyde, reacts with a wide range of alkenes to afford thio‐substituted vinylcyclopropanes. The gold‐catalyzed vinyl cyclopropanation proceeds under mild conditions at room temperature and is generally selective for the formation of cis‐substituted cyclopropanes. The reaction allows