Benzotriazolium Salts: Emergent Readily Accessible Bench-Stable Lewis Acid Catalysts
Tobias Danelzik, Sumi Joseph, Christian Mück‐Lichtenfeld, Constantin G. Daniliuc, Olga Garcı́a Mancheño
Abstract
In this work, benzotriazolium salts have been introduced as efficient, readily accessible, bench-stable Lewis acid catalysts. Though these sorts of N-heterocyclic compounds have found wide applications as ionic liquids or electrolytes, their Lewis acid catalytic activity remained unexplored. Herein, their potential as Lewis acid catalysts was demonstrated in two prototypical allylic and Nazarov cyclization reactions, showing a matching reactivity and allowing low catalytic loadings (down to 0.5 mol %).
Topics & Concepts
ChemistryLewis acids and basesCatalysisAllylic rearrangementReactivity (psychology)Ionic liquidLewis acid catalysisCombinatorial chemistryIonic bondingOrganic chemistryIonPathologyAlternative medicineMedicineOrganoboron and organosilicon chemistryN-Heterocyclic Carbenes in Organic and Inorganic ChemistryCatalytic Cross-Coupling Reactions