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The catalytic isomerization reactions of 2-methyl-3-butenenitrile into 3-pentenenitrile in ionic liquids

✍ Scribed by Christophe Vallée; Christine Valério; Yves Chauvin; Gerald P Niccolai; Jean-Marie Basset; Catherine C Santini; Jean-Christophe Galland; Blaise Didillon

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
326 KB
Volume
214
Category
Article
ISSN
1381-1169

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✦ Synopsis

The catalytic isomerization reaction of 2-methyl-3-butenenitrile (2M3BN) into 3-pentenenitrile (3PN) has been performed in the presence of Ni(0) and phosphine complexes and in biphasic ionic liquid/organic solvent. Several neutral and ionic phosphines and ionic liquids have been tested, the best results for the reaction of isomerization in conversion, selectivity, and immobilization of the catalyst in the ionic liquid phase have been obtained with the (m-sulfophenyl)-diphenylphosphine sodium salt, [TPPMSNa] as ligand and 1-butyl-2,3-dimethylimidazolium-bis(trifluoromethylsulfonyl)imide [BMMI][TFSI], as the ionic liquid.

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Raman and ab initio study of the conform
Raman and ab initio study of the conformational isomerism in the 1-ethyl-3-methyl-imidazolium bis(trifluoromethanesulfonyl)imide ionic liquid
✍ J. C. Lassègues; J. Grondin; R. Holomb; P. Johansson 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 339 KB

The calculated and experimental Raman spectra of the (EMI + )TFSI -ionic liquid, where EMI + is the 1-ethyl-3-methylimidazolium cation and TFSI -the bis(trifluoromethanesulfonyl)imide anion, have been investigated for a better understanding of the EMI + and TFSI -conformational isomerism as a functi