Cellulose-based surface-modified heterogeneously feasible novel solid acid catalyst to access bioactive heterocycles

Abstract

Abstract Surface-modified cellulose-based heterogeneously active catalyst was prepared by covalent anchoring of chlorosulphonic acid on amino-functionalized cellulose (SA@Cell-AEPC). The structure of synthesized catalyst was confirmed by analytical methods such as FT-IR, FE-SEM, EDX, TGA and CP/MAS 13C-NMR spectroscopy. The catalytic effect was evaluated for the formation of oxygen and nitrogen heterocycles. Reusability, shorter reaction time, high conversion, wide substrate scope, easy work-up procedure are noteworthy measures of this synthetic route.