Sulfonated chitosan encapsulated magnetically Fe3O4 nanoparticles as effective and reusable catalyst for ultrasound-promoted rapid, three-component synthesis of spiro-4H-pyrans
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DOI: 10.1007/s13738-018-1399-7
Abstract: A facile one-pot protocol for synthesis of spiro-4H-pyrans using sulfonated chitosan-coated Fe3O4 nanoparticles (Fe3O4@CS-SO3H NPs) as an efficient catalyst under ultrasonic condition has been developed. First, the Fe3O4@CS NPs were prepared from the reaction of… read more here.
Keywords: sulfonated chitosan; fe3o4 nanoparticles; synthesis spiro; spiro pyrans ... See more keywords