Graphene Oxide Incorporated Strontium Nanoparticles as a Highly Efficient and Green Acid Catalyst for One-Pot Synthesis of Tetramethyl-9-aryl-hexahydroxanthenes and 13-Aryl-5H-dibenzo[b,i]xanthene-5,7,12,14(13H)-tetraones Under Solvent-Free Conditions

2019 ◽  
Vol 149 (4) ◽  
pp. 1075-1086 ◽  
Author(s):  
Seyyed Rasul Mousavi ◽  
Hamid Rashidi Nodeh ◽  
Elham Zamiri Afshari ◽  
Alireza Foroumadi
Keyword(s):  
Graphene Oxide ◽  
Acid Catalyst ◽  
Solvent Free ◽  
One Pot ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
Solvent Free Conditions

A straightforward one-pot synthesis of bioactive N-aryl oxazolidin-2-ones via a highly efficient Fe3O4@SiO2-supported acetate-based butylimidazolium ionic liquid nanocatalyst under metal- and solvent-free conditions

2017 ◽  
Vol 19 (16) ◽  
pp. 3801-3812 ◽  
Author(s):  
Radhika Gupta ◽  
Manavi Yadav ◽  
Rashmi Gaur ◽  
Gunjan Arora ◽  
Rakesh Kumar Sharma
Keyword(s):  
Ionic Liquid ◽  
Solvent Free ◽  
Magnetic Nanocatalyst ◽  
One Pot ◽  
Supported Ionic Liquid ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
Solvent Free Conditions

A supported ionic liquid-based magnetic nanocatalyst has been fabricated for the formation of pharmaceutically important N-aryl oxazolidin-2-ones.

Antimony(III) chloride impregnated on alumina — An efficient and economical Lewis acid catalyst for one-pot synthesis of dihydropyrimidinones under solvent-free conditions

2006 ◽  
Vol 84 (3) ◽  
pp. 433-437 ◽  
Author(s):  
Kamal K Kapoor ◽  
Bilal A Ganai ◽  
Satish Kumar ◽  
Charanjeet S Andotra
Keyword(s):  
Lewis Acid ◽  
Condensation Reaction ◽  
Thermal Conditions ◽  
Acid Catalyst ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Lewis Acid Catalyst

The antimony(III) chloride impregnated on alumina efficiently catalyses a one-pot, three-component condensation reaction among an aldehyde, a β-ketoester, and urea or thiourea to afford the corresponding dihydropyrimidinones in good to excellent yields. The reactions are probed in microwave (MW), ultrasonic, and thermal conditions and the best results are found using MW under solvent-free conditions.Key words: Biginelli dihydropyrimidinones synthesis, SbCl3–Al2O3, MW, sonication, solid supported.

l-proline N-sulfonic acid-functionalized magnetic nanoparticles: a novel and magnetically reusable catalyst for one-pot synthesis of 3,4-dihydropyrimidine-2-(1H)-thiones under solvent-free conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 59343-59351 ◽  
Author(s):  
M. Afradi ◽  
N. Foroughifar ◽  
H. Pasdar ◽  
H. Moghanian
Keyword(s):  
Magnetic Nanoparticles ◽  
Sulfonic Acid ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Functionalized Magnetic Nanoparticles

Synthesis, characterization and utilization of the l-proline N-sulfonic acid-functionalized magnetic nanoparticles as a novel magnetically reusable acid catalyst for the synthesis of 3,4-dihydropyrimidine-2-[1H]thione derivatives is reported.

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