Issue 8, 1999
From the journal:

Journal of the Chemical Society, Perkin Transactions 1

Ytterbium(III) triflate-catalysed preparation of calix[4]resorcinarenes: Lewis assisted Brønsted acidity

Anthony G. M. Barrett,   D. Christopher Braddock,   Julian P. Henschke  and  Edward R. Walker  

Abstract

Calix[4]resorcinarenes 1–5 have been prepared in good yields by the ytterbium(III) triflate hydrate-catalysed condensation of equimolar amounts of aldehydes and resorcinol. The lanthanide salt was easily recovered and re-used following the reaction thus providing an atom economic synthesis of resorcinarenes. Evidence is presented that indicates that ytterbium(III) triflate can significantly increase the Brønsted acidity of organic acids.

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Article information

DOI
https://doi.org/10.1039/A809919G
Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1999, 873-878

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Ytterbium(III) triflate-catalysed preparation of calix[4]resorcinarenes: Lewis assisted Brønsted acidity

A. G. M. Barrett, D. Christopher Braddock, J. P. Henschke and E. R. Walker, J. Chem. Soc., Perkin Trans. 1, 1999, 873 DOI: 10.1039/A809919G

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