Ionophilic Phosphines: Versatile Ligands for Ionic Liquid Biphasic Catalysis
作者:Crestina S. Consorti、Guilherme L. P. Aydos、Günter Ebeling、Jaïrton Dupont
DOI:10.1021/ol702664a
日期:2008.1.1
Phosphine ligands bearing an imidazolium fragment were easily prepared by one-step radical chain addition of secondary phosphines to allyl or vinyl imidazolium salts. These ligands were used to prepare new ionophilic second generation Grubbs-type catalysts. The catalyst immobilized in 1-butyl-3-methyl imidazolium ILs shows good catalytic activity in RCM reactions of several substrates and, depending