Magnetic nanoparticle supported hyperbranched polyglycerol catalysts for synthesis of 4H-benzo[b]pyran

Abstract

ABSTRACT A magnetic nanoparticle supported hyperbranched polyglycerol catalyst was prepared readily from inexpensive starting materials in aqueous medium that catalyzed the synthesis of 4H-benzo[b]pyran under solvent-free conditions at room temperature. X-ray diffraction, transmission electron microscopy, thermal gravimetric analysis, vibrating sample… (More)

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