<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">A comparative study of Diels-Alder reaction between cyclopentadiene and dimethyl maleate in catalytic system is reported. The catalytic system was formed from ionic liquid which was made of N-hexylpyridinium bis(trifluoromethylsulfonyl)imide and magnesium trifluoromethanesulfonate. The yields, TONs, TOFs and <italic>endo:exo</italic> ratios were calculated. The optimal catalyst concentration was found in order to obtain the mixture of <italic>endo, exo</italic> isomers with the highest yields. Moreover recycling of the catalytic system consisting of Mg(OTf)2 (2 mol%) and ionic liquid was performed. The distillation was noticed to be a better product removal method than extraction by organic solvent, taking into consideration both the TON and TOF values.</abstract>

A comparative study of Diels-Alder reaction between cyclopentadiene and dimethyl maleate in catalytic system is reported. The catalytic system was formed from ionic liquid which was made of N-hexylpyridinium bis(trifluoromethylsulfonyl)imide and magnesium trifluoromethanesulfonate. The yields, TONs, TOFs and endo:exo ratios were calculated. The optimal catalyst concentration was found in order to obtain the mixture of endo, exo isomers with the highest yields. Moreover recycling of the catalytic system consisting of Mg(OTf)2 (2 mol%) and ionic liquid was performed. The distillation was noticed to be a better product removal method than extraction by organic solvent, taking into consideration both the TON and TOF values.

Mg(OTf)2 + ionic liquid - recyclable catalytic system in diels-alder reaction

Institute of Organic Chemical Technology, West Pomeranian University of Technology, ul. Pułaskiego 10, 71-322 Szczecin, Poland

Polish Journal of Chemical Technology

Mg(OTf) + ionic liquid - recyclable catalytic system in diels-alder reaction

A comparative study of Diels-Alder reaction between cyclopentadiene and dimethyl maleate in catalytic system is reported. The catalytic system was formed from...

Mg(OTf)₂ + ionic liquid - recyclable catalytic system in diels-alder reaction

Online veröffentlicht: 27. Sept. 2010

Seitenbereich: 3 - 5

DOI: https://doi.org/10.2478/v10026-010-0023-0

Schlüsselwörter
Diels-Alder reaction, ionic liquids, Lewis acids, norbornene derivatives

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