Application
Scandium(III) triflate, known chemically as Scandium trifluoromethanesulfonate with the formula Sc(SO3CF3)3, is an extremely active, efficient, recoverable, and reusable catalyst primarily utilized in a variety of chemical reactions to form carbon-carbon bonds. It serves as a potent Lewis acid catalyst in both the Friedel-Crafts acylation and Diels-Alder reactions, and is similarly effective in the radical polymerization of acrylates. Notably, Scandium(III) triflate is employed in the vinylogous Friedel-Crafts alkylation of indoles and pyrroles in aqueous environments, as well as in the Mukaiyama aldol reaction. Additionally, it is instrumental in facilitating hydrothiolation reactions, the selective two-electron reduction of oxygen by ferrocene derivatives, and the synthesis of β-cyanoketones. Beyond these applications, it catalyzes both asymmetric reactions and various electrophilic additions, including the interactions of alpha-diazoesters with ketones, demonstrating its versatility and significance as an important catalyst in organic chemistry.