Novel biocompatible core/shell Fe<sub>3</sub>O<sub>4</sub>@NFC@Co(<scp>ii</scp>) as a new catalyst in a multicomponent reaction: an efficient and sustainable methodology and novel reusable material for one-pot synthesis of 4<i>H</i>-pyran and pyranopyrazole in aqueous media
Pouya Ghamari Kargar, Ghodsieh Bagherzade, Hossein Eshghi
Abstract
-pyrans and pyranopyrazoles. The superparamagnetic nanocomposite could be conveniently separated by using an external magnet. Moreover, the catalyst could be reused at least five times in new reaction runs without a noticeable loss of activity. The prepared catalyst was characterized by FT-IR, XRD, VSM, FESEM, EDAX, TEM, ICP, and TGA techniques. The experiments were achieved with good yields and implied that the catalytic method was effective and convenient for heterocyclic synthesis.
Topics & Concepts
Biocompatible materialCatalysisShell (structure)Core (optical fiber)Chemical engineeringMaterials scienceChemistryNanotechnologyEngineeringOrganic chemistryBiomedical engineeringComposite materialMulticomponent Synthesis of HeterocyclesSynthesis and biological activityChemical Synthesis and Reactions