Abstract
The conversion of 2-methyl-3-butenenitrile (96%) to 3-pentenenitrile (93% of selectivity) was performed under biphasic conditions (ionic liquid/organic solvent) with the catalytic system associating Ni(cod)
2, [Ph
2P
m-PhSO
3Na], partition experiments proved that the catalyst was immobilized in ionic phase.
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.