The ability of a binary ionic liquid (IL) system consisting of a phosphonium transition state analogue (TSA) and 1-butyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imide ([BMIM][NTf2]) to accelerate the rate of the well-studied hydrolysis of a tert-alkyl picolinium salt by influencing the solvent structure was investigated. A significant rate enhancement was observed in the presence of the TSA; however, comparison with other cations ...
[Arnett, Edward M.; Flowers II, Robert A.; Ludwig, Richard T.; Meekhof, Alison E.; Walek, Stuart A. Journal of Physical Organic Chemistry, 1997 , vol. 10, # 7 p. 499 - 513]