scholarly journals Immobilized TiO2 nanoparticles on carbon nanotubes: an efficient heterogeneous catalyst for the synthesis of chromeno[b]pyridine derivatives under ultrasonic irradiation

RSC Advances ◽  
2019 ◽  
Vol 9 (71) ◽  
pp. 41868-41876 ◽  
Author(s):  
Shahrzad Abdolmohammadi ◽  
Behrooz Mirza ◽  
Esmail Vessally
Keyword(s):  
Carbon Nanotubes ◽  
Tio2 Nanoparticles ◽  
Heterogeneous Catalyst ◽  
Ultrasonic Irradiation ◽  
Aromatic Aldehydes ◽  
Pyridine Derivatives ◽  
New Synthesis ◽  
Immobilized Tio2 ◽  
Efficient Heterogeneous Catalyst

A new synthesis of chromeno[b]pyridines is described via reaction of 4-aminocoumarin, aromatic aldehydes and malononitrile catalyzed by TiO2 nanoparticles immobilized on CNTs as an efficient heterogeneous catalyst under ultrasonic irradiation.

TiO2 nanoparticles: an efficient heterogeneous catalyst for synthesis of bis(indolyl)methanes under solvent-free conditions

2009 ◽  
Vol 140 (12) ◽  
pp. 1465-1469 ◽  
Author(s):  
Mohammad Rahimizadeh ◽  
Zahra Bakhtiarpoor ◽  
Hossein Eshghi ◽  
Mehdi Pordel ◽  
Ghadir Rajabzadeh
Keyword(s):  
Tio2 Nanoparticles ◽  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Efficient Heterogeneous Catalyst

Transfer hydrogenation and hydration of aromatic aldehydes and nitriles using heterogeneous NiO nanofibers as a catalyst

2018 ◽  
Vol 42 (19) ◽  
pp. 15572-15577 ◽  
Author(s):  
S. Thenmozhi ◽  
K. Kadirvelu
Keyword(s):  
Heterogeneous Catalyst ◽  
Aromatic Aldehydes ◽  
Transfer Hydrogenation ◽  
Aromatic Alcohols ◽  
Efficient Heterogeneous Catalyst

NiO NFs as an efficient heterogeneous catalyst for the synthesis of aromatic alcohols and amides.

Ultrasound promoted preparation of Mn(III)-porphyrin nanoparticles: An efficient heterogeneous catalyst for oxidation of alkenes, alkanes and sulfides

2015 ◽  
Vol 19 (12) ◽  
pp. 1232-1237 ◽  
Author(s):  
Saeed Rayati ◽  
Fatemeh Nejabat ◽  
Nasireh Naghashian
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Heterogeneous Catalyst ◽  
Selective Oxidation ◽  
Ultrasonic Irradiation ◽  
Oxidation Of Sulfides ◽  
Wide Range ◽  
First Time ◽  
Scanning Electron ◽  
Efficient Heterogeneous Catalyst

In the present research meso-tetrakis(4-carboxyphenyl)porphyrinatomanganese(III) acetate (Mn(TCPP)OAc) nanoparticles have been prepared for the first time without any stabilizing agent or supporting matrix under ultrasonic irradiation. Scanning electron microscopy (SEM) was used to characterize and investigate the nanocatalyst. Rapid, efficient, facile and highly selective oxidation of a wide range of olefins by tetra-[Formula: see text]-butylammonium hydrogen monopersulfate over the prepared manganese nanocatalyst was investigated. Also oxidation of sulfides and alkanes in the presence of the (Mn(TCPP)OAc) nanoparticles were studied. The catalyst is recovered by filtration and reused at least five times.

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