Open AccessExploration des liquides ioniques comme nouvelle classe de solvants pour les réactions chimiques
Author(s) -
Jean-Nicolas Aebischer,
Grégory Corminboeuf,
Roger Martia,
Ennio Vanoli
Publication year - 2004
Publication title -
chimia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.387
H-Index - 55
eISSN - 2673-2424
pISSN - 0009-4293
DOI - 10.2533/000942904777677344
Subject(s) - ionic liquid , catalysis , chemistry , yield (engineering) , polymer chemistry , medicinal chemistry , organic chemistry , inorganic chemistry , nuclear chemistry , materials science , metallurgy
Ionic liquids based on laurylsulfates and tosylates anions were developed and characterized. A Heck reaction (synthesis of trans-ethylcinnamate) was optimized in 1-butyl-3-methyl-imidazolium-tosylate ionic liquid. The recycling of the reaction medium, including the catalyst and the ionic liquid, was carefully studied and the following results were obtained: eleven reactions were performed without further catalyst additions, the average yield was 85% with an average reaction time of 10 h.