Scandium trifluoromethanesulfonate (Sc(OTf)3). A novel reusable catalyst in the Diels-Alder reaction

Article abstract of DOI:10.1016/S0040-4039(00)79220-3

Scandium trifluoromethanesulfonate (Sc(OTf)₃) is found to be quite effective as a Lewis acid catalyst in the Diels-Alder reaction. The novel catalyst is available in both aqueous and organic media, is easily recovered from aqueous layer after the reaction is completed, and can be reused.