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w słowach kluczowych: 1-butyl-3-methylimidazolium trifluoromethanesulfonate

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Ionic liquids as powerful media in lanthanides triflate catalysed Diels-Alder reactions between cyclopentadiene and dimethyl maleate

Dramska A., Janus E.

Polish Journal of Chemical Technology

2006

Vol. 8, nr 2

9-11

1-Butyl-3-methylimidazolium trifluoromethanesulfonate has been tested as a reaction medium in the Diels-Alder reaction between cyclopentadiene and dimethyl maleate. The effect of three Lewis acids - scandium triflate Sc(OTf)3, yttrium triflate Y(OTf)3 and ytterbium triflate Yb(OTf)3 on the yield and the endo/exo product ratio has been investigated. All the catalysts immobilized in [BMIM][OTf] were recycled without a significant decrease in the yields and the endo/exo ratio.