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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 York
Bisphenols 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
- 2
Lichtenthaler FW. Acc. Chem. Res. 2002, 35: 728 -
3a
Enders D.Balensiefer T. Acc. Chem. Res. 2004, 37: 534 -
3b
Teles JH.Melder J.-P.Ebel K.Schneider R.Gehrer E.Harder W.Brode S.Enders D.Breuer K.Raabe G. Helv. Chim. Acta 1996, 79: 61 -
3c
Ebel K,Schneider R,Melder J.-P, andTeles JH. inventors; WO 96/02484. -
3d For a summary on the thiazolium salts, see:
Stetter H.Rämsch RY.Kuhlmann H. Synthesis 1976, 733 -
4a
Hashmi ASK. Gold Bull. 2003, 36: 3 -
4b
Hashmi ASK. Gold Bull. 2004, 37: 51 -
4c
Hashmi ASK.Hutchings G. Angew. Chem. Int. Ed. 2006, 45: 7896 ; Angew. Chem. 2006, 118, 8064 -
5a
Hashmi ASK.Frost TM.Bats JW. J. Am. Chem. Soc. 2000, 122: 11553 -
5b
Martín-Matute B.Cardenas DJ.Echavarren AM. Angew. Chem. Int. Ed. 2001, 40: 4754 ; Angew. Chem. 2001, 113, 4890 -
5c
Hashmi ASK.Salathé R.Frey W. Chem. Eur. J. 2006, 12: 6991 - 6
Kim MS.Gong JS.Lee IH. J. Heterocycl. Chem. 1992, 29: 149 - 7
Hashmi ASK.Wölfle M.Ata F.Hamzic M.Salathé R.Frey W. Adv. Synth. Catal. 2006, 348: 2501 - 8 CCDC 638293 (7d) contains the supplementary crystallographic data for this paper. These data can be obtained online free of charge [or from the Cambridge Crystallographic Data Centre, 12, Union Road, Cambridge CB2 1EZ, UK; fax: +44(1223)336033; or deposit@ccdc.cam.ac.uk]
-
9a
Hashmi ASK.Blanco MC.Kurpejovic E.Frey W.Bats JW. Adv. Synth. Catal. 2006, 348: 709 -
9b
Hashmi ASK.Schwarz L.Choi J.-H.Frost TM. Angew. Chem. Int. Ed. 2000, 39: 2285 ; Angew. Chem. 2000, 112, 2382 -
9c
Hashmi ASK.Kurpejovic E.Frey W.Bats JW. Tetrahedron 2007, 63: 5879 -
9d
Hashmi ASK.Salathé R.Frey W. Eur. J. Org. Chem. 2007, 1648 -
9e
Hashmi ASK.Blanco MC. Eur. J. Org. Chem. 2006, 4340 -
9f
Hashmi ASK.Weyrauch JP.Kurpejovic E.Frost TM.Miehlich B.Frey W.Bats JW. Chem. Eur. J. 2006, 12: 5806 -
9g
Hashmi ASK.Haufe P.Schmid C.Rivas Nass A.Frey W. Chem. Eur. J. 2006, 12: 5376
References and Notes
New address: A. S. K. Hashmi, Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.