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.

scholarly journals One-pot Synthesis of Benzo[c]acridine Derivatives Using SBA-Pr-SO3H as Nano Catalyst

2017 ◽  
Vol 58 (2) ◽  
Author(s):  
Ghodsi Mohammadi Ziarani ◽  
Somayeh Mousavi ◽  
Mahshid Rahimifard ◽  
Alireza Badiei
Keyword(s):  
Sulfonic Acid ◽  
Condensation Reaction ◽  
Acid Catalyst ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
One Pot ◽  
Acridine Derivatives ◽  
One Pot Synthesis ◽  
Nano Catalyst ◽  
Solvent Free Conditions

One-pot synthesis of benzo[<em>c</em>]acridine derivatives via the three-component condensation reaction of aromatic aldehydes, 1-naphtylamine, and dimedone using sulfonic acid functionalized SBA-15 (SBA-Pr-SO<sub>3</sub>H) as nanoporous acid catalyst under solvent-free conditions was studied. This reaction is an efficient, green and  environmentally friendly procedure.

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