Preformed Au colloidal nanoparticles immobilised on NiO as highly efficient heterogeneous catalysts for reduction of 4-nitrophenol to 4-aminophenol

2019 ◽  
Vol 7 (5) ◽  
pp. 103381 ◽  
Author(s):  
Davide Motta ◽  
Felipe Sanchez ◽  
Khaled Alshammari ◽  
Lidia E. Chinchilla ◽  
Gianluigi A. Botton ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Colloidal Nanoparticles ◽  
Highly Efficient

scholarly journals Heterogeneous catalysis with encapsulated haem and other synthetic porphyrins: Harnessing the power of porphyrins for oxidation reactions

2018 ◽  
Vol 16 (1) ◽  
pp. 763-789 ◽  
Author(s):  
Nicola A. Dare ◽  
Timothy J. Egan
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalysis ◽  
Heterogeneous Catalysts ◽  
Organic Substrates ◽  
Oxidation Reactions ◽  
Highly Efficient ◽  
Protein Environment

AbstractEncapsulated metalloporphyrins have been widely studied for their use as efficient heterogeneous catalysts, inspired by the known catalytic activity of porphyrins in haemoproteins. The oxidation of organic substrates by haemoproteins is one of the well-known roles of these proteins, in which the haem (ferriprotoporphyrin IX = FePPIX) cofactor is the centre of reactivity. While these porphyrins are highly efficient catalysts in the protein environment, once removed, they quickly lose their reactivity. It is for this reason that they have garnered much interest in the field of heterogeneous catalysis of oxidation reactions. This review details current research in the field, focusing on the application of encapsulated haem, and other synthetic metalloporphyrins, applied to oxidation reactions.

scholarly journals Highly Efficient and Selective Transformations of Glycerol Using Reusable Heterogeneous Catalysts

2014 ◽  
Vol 2 (4) ◽  
pp. 574-578 ◽  
Author(s):  
Tomoo Mizugaki ◽  
Racha Arundhathi ◽  
Takato Mitsudome ◽  
Koichiro Jitsukawa ◽  
Kiyotomi Kaneda
Keyword(s):  
Heterogeneous Catalysts ◽  
Highly Efficient

scholarly journals Ultrasound-Accelerated, Concise, and Highly Efficient Synthesis of 2-Oxazoline Derivatives Using Heterogenous Calcium Ferrite Nanoparticles and Their DFT Studies

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Anjaneyulu Bendi ◽  
Shalu Atri ◽  
G. B. Dharma Rao ◽  
Mohd Jamshaiya Raza ◽  
Nutan Sharma
Keyword(s):  
Heterogeneous Catalysts ◽  
Ultrasound Irradiation ◽  
Ferrite Nanoparticles ◽  
Calcium Ferrite ◽  
Coupling Reactions ◽  
Reactivity Descriptors ◽  
Biologically Relevant ◽  
Highly Efficient ◽  
Potential Map ◽  
Oxazoline Derivatives

A rapid and operationally simple approach for synthesising biologically relevant 2-oxazoline derivatives has been developed through highly efficient ultrasound-promoted coupling reactions of thioamides and amino alcohols using calcium ferrite nanoparticles as heterogeneous catalysts. The major advantage of using ultrasound irradiation lies in the drastic reduction of reaction time as compared with conventional stirring. Furthermore, quantum chemical investigations for the synthesised 2-oxazoline derivatives have been carried out at the DFT/B3LYP/6-311 + G (d, p) level of theory to predict the optimized geometry. The molecular properties such as bond lengths, bond orders, Milliken charges, frontier molecular orbitals, global reactivity descriptors, molecular electrostatic potential map, and thermodynamic parameters of all the compounds have also been reported at the same level of theory.

ChemInform Abstract: Highly Efficient Syntheses of α-Amino Ketones and Pentasubstituted Pyrroles Using Reusable Heterogeneous Catalysts.

ChemInform ◽  
2015 ◽  
Vol 46 (30) ◽  
pp. no-no
Author(s):  
Mahnaz Farahi ◽  
Fatemeh Tamaddon ◽  
Bahador Karami ◽  
Shahram Pasdar
Keyword(s):  
Heterogeneous Catalysts ◽  
Highly Efficient

Controlled Synthesis of Hydroxyapatite-Supported Palladium Complexes as Highly Efficient Heterogeneous Catalysts

2002 ◽  
Vol 124 (39) ◽  
pp. 11572-11573 ◽  
Author(s):  
Kohsuke Mori ◽  
Kazuya Yamaguchi ◽  
Takayoshi Hara ◽  
Tomoo Mizugaki ◽  
Kohki Ebitani ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Palladium Complexes ◽  
Controlled Synthesis ◽  
Highly Efficient ◽  
Supported Palladium
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