Ultrasound-Engineered fabrication of immobilized molybdenum complex on Cross-Linked poly (Ionic Liquid) as a new acidic catalyst for the regioselective synthesis of pharmaceutical polysubstituted spiro compounds

Abstract

Graphical abstract Ultrasound-assisted construction of new supported molybdenum (VI) complex on modified poly ionic liquid as highly efficient catalyst for regioselective synthesis of spiropyranopyrazole and spiro[indoline-3,4′-pyridine] derivatives.