One-Pot Synthesis of Novel 3-Pyrazolyl-4H-1,2,4-triazoles Using Amino Glucose‐Functionalized Silica-Coated NiFe2O4 Nanoparticles as a Magnetically Separable Catalyst
l-Tryptophan functionalized silica-coated magnetic nanoparticles were prepared and evaluated as a magnetic nanocatalyst for the synthesis of spiro[indene-2,2′-naphthalene]-4′-carbonitrile derivatives through the one-pot four-component reaction.
Application of ultrasonic method as a green source of energy to reduce the reaction times compared to conventional processes. NiFe2O4@SiO2–H14[NaP5W30O110] was used as magnetically separable catalyst for synthesis of pyrans with minimum work up.
This paper reports the preparation, characterization and catalytic application of a novel, magnetically separable catalyst consisting of tungstic acid supported on silica coated magnetic nanoparticles.
Supported l-tryptophan on Fe3O4@SiO2 as an efficient and magnetically separable catalyst for one-pot construction of spiro[indene-2,2′-naphthalene]-4′-carbonitrile derivatives