Synthesis of Hantzsch 1,4-Dihydropyridines under Solvent-Free Conditions Using Zn[(L)proline]2 as Lewis Acid Catalyst.

ChemInform ◽  
2005 ◽  
Vol 36 (49) ◽  
Author(s):  
V. Sivamurugan ◽  
R. Suresh Kumar ◽  
M. Palanichamy ◽  
V. Murugesan
Keyword(s):  
Lewis Acid ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Lewis Acid Catalyst

KAl(SO4)2 · 12H2O as a Recyclable Lewis Acid Catalyst for Synthesis of Some Amidoalkyl Naphthols Under Solvent-Free Conditions

2011 ◽  
Vol 42 (1) ◽  
pp. 109-113 ◽  
Author(s):  
Hossein A. Oskooie ◽  
Majid M. Heravi ◽  
Narges Karimi ◽  
Akram Amouchi ◽  
Golnaz Kohansal
Keyword(s):  
Lewis Acid ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Amidoalkyl Naphthols ◽  
Solvent Free Conditions ◽  
Lewis Acid Catalyst

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.

ChemInform Abstract: KAl(SO4)2·12H2O as a Recyclable Lewis Acid Catalyst for Synthesis of Some Amidoalkyl Naphthols under Solvent-Free Conditions.

ChemInform ◽  
2012 ◽  
Vol 43 (21) ◽  
pp. no-no
Author(s):  
Hossein A. Oskooie ◽  
Majid M. Heravi ◽  
Narges Karimi ◽  
Akram Amouchi ◽  
Golnaz Kohansal
Keyword(s):  
Lewis Acid ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Amidoalkyl Naphthols ◽  
Solvent Free Conditions ◽  
Lewis Acid Catalyst
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