Keywords Supported ionic liquid · Anionic polyoxometalate · Magnetic support · N-alkylation · Pramipexole dihydrochloride Introduction The polyoxometalate compounds have been used as efﬁcient catalysts in various chemical transformations due to their strong Brønsted acidity, thermal stabilities, lower corrosivity and higher catalytic activity [1–8]. However, the problems in recovery at the end of reactions, limits the catalytic action of polyoxometalates . During recent years, the magnetic nanoparticles are used to immobilize catalytic substances [10–13]. Among the various magnetic nanoparticles, magnetite (Fe O ) 3 4 is the most widely used magnetic substance for catalysts support [14–17]. Simple isolation of magnetic nanoparticles is the main potential beneﬁt of a catalytic system based on such a nanoparticles. As a result, ﬁltration and centrifugation were eliminated. So, the immobilization of the polyoxometalates in the magnetic nanoparticles (MNPs) will supply mild treatment during the production process and open up a possibility for their applications in the chemical or pharmaceutical industry. Immobilization of ionic liquids by covalent connection on the surface of magnetic nanoparticles (MNPs) directed to heterogenization of homogeneous catalysts. These catalytic systems that mix the properties of both homogeneous and heterogeneous catalysts have the advantage of the elevated surface area, increased activity,
Research on Chemical Intermediates – Springer Journals
Published: Sep 22, 2016
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