Synthesis of bioactive heterocycles using reusable heterogeneous catalyst HClO4–SiO2 under solvent-free conditions
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DOI: 10.1080/17518253.2018.1510991
Abstract: ABSTRACT We are reporting a simple, efficient and green protocol for the synthesis of chromenes and dihydropyrimidines (products of Knoevenagel and Biginelli reaction, respectively) by the use of silica-supported perchloric acid (HClO4–SiO2) as an effective… read more here.
Keywords: bioactive heterocycles; hclo4 sio2; synthesis bioactive; catalyst ... See more keywords