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Synlett 2007(11): 1747-1752
DOI: 10.1055/s-2007-982569
DOI: 10.1055/s-2007-982569
CLUSTER
© Georg Thieme Verlag Stuttgart · New YorkBisphenols from Furfurals by Organocatalysis and Gold Catalysis
Further Information
Received
5 March 2007
Publication Date:
25 June 2007 (online)
Publication History
Publication Date:
25 June 2007 (online)
Abstract
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.
Key words
alkynes - furans - gold catalysis - organocatalysis - triazolium salts
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References and Notes
New address: A. S. K. Hashmi, Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.