Magnetically recoverable nano-catalysts in sulfoxidation reactions

2017 ◽  
Vol 6 (6) ◽  
pp. 549-571 ◽  
Author(s):  
Mosstafa Kazemi ◽  
Massoud Ghobadi
Keyword(s):  
Magnetic Nanoparticles ◽  
Metal Complexes ◽  
Magnetic Separation ◽  
Organic Synthesis ◽  
Reaction Medium ◽  
Biologically Active ◽  
Rapid Separation ◽  
Energy Consuming ◽  
Medical Chemistry ◽  
Nano Catalysts

AbstractThe sulfoxidation of sulfides have received special attention in organic synthesis especially in medical chemistry because compounds containing S=O bonds (sulfoxides) are privileged structural scaffolds for building pharmacologically and biologically active molecules. Magnetic separation is an efficient strategy for the rapid separation of catalysts from reaction medium and an alternative to time-, solvent-, and energy-consuming separation techniques. In recent times, many protocols based on using magnetically recoverable nano-catalysts have been reported for the oxidation of sulfides to the sulfoxides. This review is focused on metal complexes, acid, and bromine reagents supported on magnetic nanoparticles and their applications as magnetically recoverable nano-catalysts in the sulfoxidation reactions.

Cobalt ferrite nanoparticles (CoFe2O4 MNPs) as catalyst and support: magnetically recoverable nanocatalysts in organic synthesis

2018 ◽  
Vol 7 (1) ◽  
pp. 43-68 ◽  
Author(s):  
Mosstafa Kazemi ◽  
Massoud Ghobadi ◽  
Ali Mirzaie
Keyword(s):  
Magnetic Separation ◽  
Organic Synthesis ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Organic Reactions ◽  
Separation Technique ◽  
Rapid Separation ◽  
Cobalt Ferrite Nanoparticles ◽  
Highly Efficient ◽  
Catalysis Research

AbstractRecovery and reusability of catalysts is an important aspect in modern catalysis research especially in organic synthesis. Compared to the conventional separation, magnetic separation has emerged as a robust, highly efficient, easy and rapid separation technique for products and catalysts. Cobalt ferrite nanoparticles are a well-known material, recognized as CoFe2O4MNPs, and can be used as both catalyst and a versatile support for functionalization of metals, organocatalysts. In recent times, catalysis research has clearly experienced a renaissance in the area of utility of cobalt ferrite (CoFe2O4MNPs) nanocatalysts based on their ability for recovery and reusability; the activity of these CoFe2O4MNPs was investigated in a category of organic reactions. In this review, the fabrication, characterization, and application of cobalt ferrite (CoFe2O4MNPs) nanocatalysts (CF-MNPs) in organic reactions have well summarized.

Magnetic nanocatalysts: supported metal nanoparticles for catalytic applications

2013 ◽  
Vol 2 (5) ◽  
pp. 597-614 ◽  
Author(s):  
Liane M. Rossi ◽  
Natália J.S. Costa ◽  
Fernanda P. Silva ◽  
Renato V. Gonçalves
Keyword(s):  
Metal Nanoparticles ◽  
Magnetic Separation ◽  
Reaction Medium ◽  
Organic Reactions ◽  
Coupling Reactions ◽  
Fast Separation ◽  
Energy Consuming ◽  
Magnetic Solid ◽  
Catalytic Applications ◽  
Supported Metal Nanoparticles

AbstractThis review is focused on metal nanoparticles (NPs) supported on magnetic responsive solids and their recent applications as magnetically recoverable nanocatalysts. Magnetic separation is a powerful tool for the fast separation of catalysts from reaction medium and an alternative to time-, solvent-, and energy-consuming separation procedures. Metal NPs attached to a magnetic solid can be easily carried and recovered by magnetic separation. Some examples of magnetically recoverable metal NPs used in hydrogenation, oxidation, C-C coupling reactions, photocatalysis, and other organic reactions will be given.

Ionic Liquids for the Synthesis of Five-Membered N,N-, N,N,N- and N,N,N,NHeterocycles

2019 ◽  
Vol 23 (11) ◽  
pp. 1214-1238 ◽  
Author(s):  
Navjeet Kaur ◽  
Pranshu Bhardwaj ◽  
Meenu Devi ◽  
Yamini Verma ◽  
Neha Ahlawat ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Organic Synthesis ◽  
Heterocyclic Compounds ◽  
Reaction Medium ◽  
Environmental Issues ◽  
Organic Reaction ◽  
Environment Friendly ◽  
The Past ◽  
Area Of Interest ◽  
Major Subject

Due to special properties of ILs (Ionic Liquids) like their wide liquid range, good solvating ability, negligible vapour pressure, non-inflammability, environment friendly medium, high thermal stability, easy recycling and rate promoters etc. they are used in organic synthesis. The investigation for the replacement of organic solvents in organic synthesis is a growing area of interest due to increasing environmental issues. Therefore, ionic liquids have attracted the attention of chemists and act as a catalyst and reaction medium in organic reaction with high activity. There is no doubt that ionic liquids have become a major subject of study for modern chemistry. In comparison to traditional processes the use of ionic liquids resulted in improved, complimentary or alternative selectivities in organic synthesis. The present manuscript reported the synthesis of multiple nitrogen containing five-membered heterocyclic compounds using ionic liquids. This review covered interesting discoveries in the past few years.

Magnetic Nanoparticles for Efficient Removal of Oilfield “Contaminants": Modeling of Magnetic Separation and Validation

2015 ◽  
Author(s):  
Valentina Prigiobbe ◽  
Saebom Ko ◽  
Qing Wang ◽  
Chun Huh ◽  
Steven L. Bryant ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Magnetic Separation ◽  
Efficient Removal
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