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

被引：53

作者：

Barrett, AGM ^{[1
]}

Braddock, DC ^{[1
]}

Henschke, JP ^{[1
]}

Walker, ER ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1999年 / 08期

关键词：

D O I：

10.1039/a809919g

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

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 Bronsted acidity of organic acids.

引用

页码：873 / 878

页数：6

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