scholarly journals Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for One-Pot Multicomponent Synthesis of Novel Quinoline Derivatives: Sustainable Perspectives

2018 ◽  
Author(s):  
Kahdijah S. Alghamdi ◽  
Nesreen Ahmed ◽  
D. Bakhotmah ◽  
Mohamed Mokhtar M. Mostafa
Keyword(s):  
Copper Nanoparticles ◽  
Current Method ◽  
Product Yield ◽  
Reaction Yield ◽  
Quinoline Derivatives ◽  
Multicomponent Synthesis ◽  
High Turnover ◽  
One Pot ◽  
Efficient Catalyst ◽  
Green Protocol

Chitosan decorated copper nanoparticles catalysts (CSCuNPs) were synthesized via reduction methods utilizing green protocol. The CSCuNPs catalysts were tested for the synthesis of quinoline derivatives utilizing one-pot multicomponent reaction (MCR) under ultrasonic irradiation. The best catalyst (Cu-CS-NPs) that provided good conversion reaction yield and high turnover frequency (TOF) was characterized using FTIR, TGA, XRD, TEM and XPS techniques. Generalization of the scope of the proposed catalytic process was studied using different aldehydes. Excellent products yield and high TOF in even shorter reaction time (~5 min) was attained. Recyclability performance of the catalyst over five times re-use without detectable loss in product yield was recorded. The current method is green process utilizing environmentally benign catalyst and considered to be promising sustainable protocol for the synthesis of fine chemicals.

scholarly journals Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for One-Pot Multicomponent Synthesis of Novel Quinoline Derivatives: Sustainable Perspectives

2018 ◽  
Author(s):  
Kahdijah S. Alghamdi ◽  
Nesreen S.I. Ahmed ◽  
D. Bakhotmah ◽  
Mohamed Mokhtar
Keyword(s):  
Copper Nanoparticles ◽  
Current Method ◽  
Product Yield ◽  
Reaction Yield ◽  
Quinoline Derivatives ◽  
Multicomponent Synthesis ◽  
High Turnover ◽  
One Pot ◽  
Efficient Catalyst ◽  
Green Protocol

Chitosan decorated copper nanoparticles catalysts (CSCuNPs) were synthesized via reduction methods utilizing green protocol. The CSCuNPs catalysts were tested for the synthesis of quinoline derivatives utilizing one-pot multicomponent reaction (MCR) under ultrasonic irradiation. The best catalyst (Cu-CS-NPs) that provided good conversion reaction yield and high turnover frequency (TOF) was characterized using FTIR, TGA, XRD, TEM and XPS techniques. Generalization of the scope of the proposed catalytic process was studied using different aldehydes. Excellent products yield and high TOF in even shorter reaction time (~5 min) was attained. Recyclability performance of the catalyst over five times re-use without detectable loss in product yield was recorded. The current method is green process utilizing environmentally benign catalyst and considered to be promising sustainable protocol for the synthesis of fine chemicals.

scholarly journals Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for Synthesis of Novel Quinoline Derivatives

2018 ◽  
Author(s):  
Kahdijah S. Alghamdi ◽  
Nesreen S.I. Ahmed ◽  
D. Bakhotmah ◽  
Mohamed Mokhtar M. Mostafa
Keyword(s):  
Copper Nanoparticles ◽  
Photoelectron Spectroscopy ◽  
Current Method ◽  
Reaction Yield ◽  
Quinoline Derivatives ◽  
High Turnover ◽  
One Pot ◽  
Efficient Catalyst ◽  
X Ray ◽  
Green Protocol

Chitosan decorated copper nanoparticles (CS/CuNPs) catalysts were synthesized via reduction methods utilizing green protocol. The CS/CuNPs hybrid catalysts were tested for the synthesis of quinoline derivatives utilizing one-pot multicomponent reaction (MCR) under ultrasonic irradiation. The best catalyst (CS/CuNPs) that provided good conversion reaction yield and high turnover frequency (TOF) was characterized using Fourier transform infrared (FTIR), Thermogravimetric analyses (TGA), X-ray diffraction (XRD), , scanning electron microscopy (SEM), transmission electron microscope (TEM) and X-ray photoelectron spectroscopy (XPS) techniques. Generalization of the scope of the proposed catalytic process was studied using different aldehydes. Excellent products yield and high TOF in even shorter reaction time (~5 min) was attained. Recyclability performance of the catalyst over five times re-use without detectable loss in product yield was recorded. The current method is green process utilizing environmentally benign catalyst and considered to be promising sustainable protocol for the synthesis of fine chemicals.

scholarly journals Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for One-Pot Multicomponent Green Synthesis of Novel Quinoline Derivatives

2018 ◽  
Author(s):  
Kahdijah S. Alghamdi ◽  
Nesreen S.I. Ahmed ◽  
D. Bakhotmah ◽  
Mohamed Mokhtar
Keyword(s):  
Copper Nanoparticles ◽  
Current Method ◽  
Aromatic Aldehydes ◽  
Product Yield ◽  
Catalytic Performance ◽  
Reaction Yield ◽  
High Turnover ◽  
One Pot ◽  
Efficient Catalyst ◽  
Green Protocol

Chitosan decorated copper nanoparticles catalysts (CSCuNPs) were synthesized via reduction methods utilizing green protocol. The catalytic performance of CSCuNPs were tested for one-pot multicomponent reaction (MCR) using four reactant components: aromatic aldehydes, dimedone, ammonium acetate and ethylcyanoacetate under ultrasonic irradiation. The best catalyst (Cu-CS-NPs) that provided good conversion reaction yield and high turnover frequency (TOF) utilizing a facile and fast ultrasonic process was characterized using FTIR, TGA, XRD, TEM and XPS techniques. Generalization of the scope of the proposed catalytic process was studied using different aldehydes and excellent products yields and high TOF in even shorter reaction time (5 min.) was attained. Recyclability performance of the catalyst over five times re-use without detectable loss in product yield was recorded. The current method is green process utilizing environmentally benign catalyst and considered to be promising sustainable protocol for the synthesis of fine chemicals.

Novel Synthetic Methodologies. Part 85. Iodine as an Efficient Catalyst for One-Pot Multicomponent Synthesis β-Acetamido Ketones.

ChemInform ◽  
2006 ◽  
Vol 37 (48) ◽  
Author(s):  
Biswanath Das ◽  
K. Ravinder Reddy ◽  
R. Ramu ◽  
P. Thirupathi ◽  
B. Ravikanth
Keyword(s):  
Multicomponent Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
Synthetic Methodologies

CeCl3·7H2O as mild and efficient catalyst for the one-pot multicomponent synthesis of 8-aryl-7,8-dihydro[1,3]dioxolo[4,5-g]chromen-6-ones

2011 ◽  
Vol 76 (4) ◽  
pp. 235-241 ◽  
Author(s):  
Li-Qiang Wu ◽  
Wei-Lin Li ◽  
Fu-Lin Yan
Keyword(s):  
Aromatic Aldehydes ◽  
Environmentally Benign ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
Three Component Reaction ◽  
The One ◽  
High Yields ◽  
Work Up

A series of new 8-aryl-7,8-dihydro[1,3]dioxolo[4,5-g]chromen-6-ones were synthesized via a three-component reaction of 3,4-methylenedioxyphenol, aromatic aldehydes and Meldrum’s acid in the presence of CeCl3·7H2O under solvent-free conditions. The method provided several advantages such as easy work-up, high yields and environmentally benign procedure.

Chitosan Decorated Copper Nanoparticles as Efficient Catalyst for Synthesis of Novel Quinoline Derivatives

2020 ◽  
Vol 20 (2) ◽  
pp. 890-899
Author(s):  
K. S. Alghamdi ◽  
N. S. I. Ahmed ◽  
D. Bakhotmah ◽  
M. Mokhtar
Keyword(s):  
Copper Nanoparticles ◽  
Quinoline Derivatives ◽  
Efficient Catalyst

Iodine as an Efficient Catalyst for One-Pot Multicomponent Synthesis of β-Acetamido Ketones

Synlett ◽  
2006 ◽  
Vol 2006 (11) ◽  
pp. 1756-1758 ◽  
Author(s):  
Biswanath Das ◽  
K. Reddy ◽  
R. Ramu ◽  
P. Thirupathi ◽  
B. Ravikanth
Keyword(s):  
Multicomponent Synthesis ◽  
One Pot ◽  
Efficient Catalyst

scholarly journals Ecofriendly and Facile One-Pot Multicomponent Synthesis of Thiopyrimidines under Microwave Irradiation

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Biswa Mohan Sahoo ◽  
B. V. V. Ravi Kumar ◽  
Jnyanaranjan Panda ◽  
S. C. Dinda
Keyword(s):  
Reaction Time ◽  
Microwave Irradiation ◽  
Spectral Data ◽  
Multicomponent Reaction ◽  
Multicomponent Reactions ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Heating Method ◽  
Green Protocol ◽  
Drug Molecules

A rapid, improved, and ecofriendly synthesis of thiopyrimidines is carried out via one-pot multicomponent reaction of ethylcyanoacetate, substituted benzaldehydes, and thiourea in presence of ethanolic K2CO3 using microwave irradiation heating method. Excellent yields, shorter reaction time, and easy workup are the major advantageous features of this green protocol. So the application of multicomponent reactions involves the combination of multiple starting materials with different functional groups leading to the highly efficient and environmentally friendly construction of multifunctional drug molecules. The structures of the newly synthesized products were assigned on the basis of IR and 1HNMR spectral data.

scholarly journals An Efficient One-Pot Green Protocol for the Synthesis of 5-Unsubstituted 3,4-Dihydropyrimidin-2(1H)-Ones Using Recyclable Amberlyst 15 DRY as a Heterogeneous Catalyst via Three-Component Biginelli-Like Reaction

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Srinivasa Rao Jetti ◽  
Divya Verma ◽  
Shubha Jain
Keyword(s):  
Heterogeneous Catalyst ◽  
Solid Acid ◽  
Environmentally Benign ◽  
Chemical Waste ◽  
One Pot ◽  
Efficient Catalyst ◽  
Amberlyst 15 ◽  
Green Protocol ◽  
Recyclable Heterogeneous Catalyst ◽  
Work Up

An environmentally benign green protocol for the synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2(1H)-ones using Amberlyst 15 DRY as a recyclable catalyst has been developed. The use of resinous, nontoxic, thermally stable, and inexpensive Amberlyst 15 DRY, as a recyclable heterogeneous catalyst, makes the process simple with negligible chemical waste. Among the various solid acid catalysts Amberlyst 15 DRY was found to be the most efficient catalyst with regard to reaction time, yield, and ease of work-up procedure.

scholarly journals Copper nanoparticles grafted on carbon microspheres as novel heterogeneous catalysts and their application for the reduction of nitrophenol and one-pot multicomponent synthesis of hexahydroquinolines

2018 ◽  
Vol 42 (2) ◽  
pp. 1092-1098 ◽  
Author(s):  
Tibor Pasinszki ◽  
Melinda Krebsz ◽  
Győző György Lajgut ◽  
Tünde Kocsis ◽  
László Kótai ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Heterogeneous Catalysts ◽  
Cu Nanoparticles ◽  
Carbon Microspheres ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Carbon Microsphere

Carbon microsphere-supported Cu nanoparticles were fabricated, characterized, and applied for synthesis.

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