Tris (trifluoromethanesulfonyl) methide (“triflide”) anion: Convenient preparation, x-ray crystal structures, and exceptional catalytic activity as a counterion with …

…, D Ramprasad, RM McKinnell, AJP White…

Index: Waller, Francis J.; Barrett, Anthony G. M.; Braddock, D. Christopher; Ramprasad, Dorai; McKinnell, R. Murray; White, Andrew J. P.; Williams, David J.; Ducray, Richard Journal of Organic Chemistry, 1999 , vol. 64, # 8 p. 2910 - 2913

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Citation Number: 57

Abstract

The lanthanide (III) triflates are the focus of much current research. 1 Recently we have reported the use of lanthanide (III) triflates2 and the superior tetrapositive group IV metal triflates, hafnium and zirconium, 3, 4 as recyclable atom economic catalysts for aromatic nitration. In an attempt to further enhance the catalytic activity of these salts for nitrations, we sought to modify the triflate counterion. 5 On the basis of our current mechanistic ...