Application Excellent and recyclable catalyst for the mononitration of o-nitrotoluene.8 Catalyst for: • Homogeneous methoxycarbonylation and hydrocarboxylation reactions of phenylacetylene1 • Direct Friedel-Crafts reactions of chromene hemiacetals2 • Aminomethylation reactions under Lewis acidic conditions3 • Prins-type cyclization reactions4 • Direct polycondensation of lactic acid5 • Cationic benzylation reactions6 • Chemoselective thioacetalization and transthioacetalization of carbonyl compounds7 Packaging 1 g in glass bottle