Bisphenols from Furfurals by Organocatalysis and Gold Catalysis
作者:A. Stephen Hashmi、J. Teles、Michael Wölfle、Wolfgang Frey
DOI:10.1055/s-2007-982569
日期:2007.7
Four different benzoins were formed from furfurals by organocatalysis with heterocyclic carbenes, reduced to the diols and converted into propargyl ethers. The gold-catalyzed cyclization -exclusively gave bisphenols of the bisdihydroisobenzofuran type.