Trifyl activation in organic synthesis

Sc(OTf)3- and TfOH-Catalyzed Baeyer-Villiger Oxidation of Carbonyl Compounds with m-Chloroperbenzoic Acid

“…12 Apparently, the role of Sc(OTf) 3 and TfOH in these Baeyer-Villiger oxidations can be attributed to their respective strong coordinating and protonation ability. 13 The characteristic pattern of the percentage yield of 2 using various acid catalysts is presented graphically in Fig. 1.…”

Synthesis and Characterization of Some CoIIIand CrIIIComplexes Containing Diazine Ligands

“…[3,4] Consequently [(NH 3 ) 5 MOSO 2 CF 3 ](CF 3 SO 3 ) 2 , having such a good leaving group can be used as an excellent starting material for preparation of [M(NH 3 ) 5 L] 3þ complexes in which L is an organic ligand with high or low basisity. Dissolution of this triflato complex in different solvents is another advantage of this compound as a starting material.…”

Preparation of α,α‐difluoromethylene functionalized sulfones

“…The perfluoroalkylsulfonyl moiety is one of the strongest neutral electron withdrawing groups known [ 1, 21 and exhibits enormously versatile reactivity, acting both as an electrophile and as a nucleophile [3]. Furthermore, it stabilizes adjacent carbanions [4] and activates unsaturated bonds toward nucleophilic attack [5] and Diels-Alder reactions [6].…”