Biologically active dihydropyrimidones of the Biginelli-type—a literature survey
CO Kappe - European journal of medicinal chemistry, 2000 - Elsevier
In 1893, the synthesis of functionalized 3, 4-dihydropyrimidin-2 (1H)-ones (DHPMs) via three-
component condensation reaction of an aromatic aldehyde, urea and ethyl acetoacetate …
component condensation reaction of an aromatic aldehyde, urea and ethyl acetoacetate …
Arylglyoxals in synthesis of heterocyclic compounds
Heterocycles are an extraordinarily important class of compounds, making up more than half
of all known organic compounds. Heterocycles are present in a wide variety of drugs, most …
of all known organic compounds. Heterocycles are present in a wide variety of drugs, most …
A Reexamination of the Mechanism of the Biginelli Dihydropyrimidine Synthesis. Support for an N-Acyliminium Ion Intermediate1
CO Kappe - The Journal of organic chemistry, 1997 - ACS Publications
The mechansim of the three-component Biginelli dihydropyrimidine synthesis was
reinvestigated using 1H and 13C NMR spectroscopy. Condensation of benzaldehyde, ethyl …
reinvestigated using 1H and 13C NMR spectroscopy. Condensation of benzaldehyde, ethyl …
Lanthanide triflate catalyzed Biginelli reaction. One-pot synthesis of dihydropyrimidinones under solvent-free conditions
Y Ma, C Qian, L Wang, M Yang - Journal of Organic …, 2000 - organic-chemistry.org
Abstract By using Yb (OTf) 3 as a catalyst and under solvent-free reaction conditions, the
yields of the one-pot Biginelli reaction can be increased while the reaction time was …
yields of the one-pot Biginelli reaction can be increased while the reaction time was …
Ionic liquids catalyzed Biginelli reaction under solvent-free conditions
J Peng, Y Deng - Tetrahedron Letters, 2001 - Elsevier
3, 4-Dihydropyrimidin-2 (1H)-ones were synthesised in high yields by one-pot three-
component Biginelli condensation in the presence of room temperature ionic liquids such as …
component Biginelli condensation in the presence of room temperature ionic liquids such as …
A revision of the Biginelli reaction under solid acid catalysis. Solvent-free synthesis of dihydropyrimidines over montmorillonite KSF
F Bigi, S Carloni, B Frullanti, R Maggi, G Sartori - Tetrahedron Letters, 1999 - Elsevier
The reaction of aldehydes, β-dicarbonyl compounds and urea (Biginelli reaction) has been
performed over solid acid catalysis, under solventless conditions or in water affording …
performed over solid acid catalysis, under solventless conditions or in water affording …
Zirconium (IV) chloride catalyzed one-pot synthesis of 3, 4-dihydropyrimidin-2 (1H)-ones
CV Reddy, M Mahesh, PVK Raju, TR Babu… - Tetrahedron …, 2002 - Elsevier
Zirconium(IV) chloride catalyzed one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones -
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Magnetic Fe3O4 nanoparticles: Efficient and recoverable nanocatalyst for the synthesis of polyhydroquinolines and Hantzsch 1, 4-dihydropyridines under solvent-free …
M Nasr-Esfahani, SJ Hoseini… - Journal of Molecular …, 2014 - Elsevier
A green approach for efficient and rapid synthesis of biologically active substituted Hantzsch
1, 4-dihydropyridine and polyhydroquinoline derivatives using magnetic Fe 3 O 4 …
1, 4-dihydropyridine and polyhydroquinoline derivatives using magnetic Fe 3 O 4 …
Mn (OAc) 3· 2H2O-mediated three-component, one-pot, condensation reaction: an efficient synthesis of 4-aryl-substituted 3, 4-dihydropyrimidin-2-ones
KA Kumar, M Kasthuraiah, CS Reddy, CD Reddy - Tetrahedron Letters, 2001 - Elsevier
Mn(OAc)3·2H2O-mediated three-component, one-pot, condensation reaction: an efficient
synthesis of 4-aryl-substituted 3,4-dihydropyrimidin-2-ones - ScienceDirect Skip to main …
synthesis of 4-aryl-substituted 3,4-dihydropyrimidin-2-ones - ScienceDirect Skip to main …
[HTML][HTML] An efficient synthesis of 3, 4-dihydropyrimidin-2-ones catalyzed by NH2SO3H under ultrasound irradiation
JT Li, JF Han, JH Yang, TS Li - Ultrasonics Sonochemistry, 2003 - Elsevier
An efficient synthesis of 3,4-dihydropyrimidin-2-ones catalyzed by NH2SO3H under ultrasound
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