123237-03-6Relevant academic research and scientific papers
Synthesis and in vitro evaluation of the antifungal activities of dihydropyrimidinones
Singh, Okram Mukherjee,Singh, Sarangthem Joychandra,Devi, Mutum Babita,Devi, Laitonjam Nalini,Singh, Nameirakpam Irabanta,Lee, Sang-Gyeong
, p. 6462 - 6467 (2008)
Copper (II) chloride in the absence of any solvent, efficiently catalyses the synthesis of dihydropyrimidinones (80-96% yields) by the Biginelli reaction. Six compounds were selected and examined their antifungal activities against the radial growth of th
Magnesium/methanol: an effective reducing agent for chemoselective reduction of pyrimidine-2(1H)-ones
Singh, Kamaljit,Singh, Kawaljit
, p. 2219 - 2221 (2009)
Magnesium in methanol is an effective reagent for the chemoselective reduction of pyrimidine-2(1H)-ones. Other reducible functionalities such as ester and alkene of enamine ester and uriedo carbonyl remain unaffected. This constitutes the first example of
A Bifunctional Metal/Acid Catalyst for One-pot Multistep Synthesis of Pharmaceuticals
Corma, Avelino,Lopez-Prado, Maria Victoria,Sabater, María J.
, p. 499 - 507 (2020)
Abstract: One inhibitor of the fatty acid transporter FATP4 was synthesized in a three steps one-pot process in the presence of a bifunctional metal/acid catalyst. This molecule which has potential interest for the treatment of the obesity in orlistat (Xenical TM) analogue-based therapies has a 3,4-dihydropyrimidin-2(1H)-one (DHPM) scaffold and was obtained by means of a three one-pot process through successive oxidation, cyclocondensation and transesterification reactions. The one-pot strategy was extended to the synthesis of a series of related ester DHPM derivatives.
Magnesium chloride hexahydrate catalyzed one-pot synthesis of 3,4-dihydropyrimidin-2-(1H)ones under solvent-free conditions
Zhang, Guo-Lin,Cai, Xiao-Hua
, p. 829 - 833 (2005)
3,4-Dihydropyrimidin-2-(1H)-one were prepared by Biginelli condensation of aldehyde, 1,3-dicarbonyl compound and urea under solvent-free condition at 80°C with magnesium chloride hexahydrate as catalyst.
Synthesis of a 2-Hydrazinyl-1,6-dihydropyrimidine Derivative
Shiryaev,Lashmanova,Trofimova
, p. 335 - 338 (2019)
Ethyl 4-methyl-6-phenyl-2-[2-(propan-2-ylidene)hydrazinyl]-1,6-dihydropyrimidine-5-carboxylate has been synthesized from ethyl 2-(ethoxymethylidene)-7-methyl-3-oxo-5-phenyl-3,5-dihydro-2H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate.
Decoration of β-CD on Fe3O4@Ag core–shell nanoparticles as a new magnetically recoverable and reusable catalyst for the synthesis of 3,4-dihydropyrimidinones and 2,4-dihydropyrano[2,3-c]pyrazoles in H2O
Mirhashemi, Fatemeh,Ali Amrollahi, Mohammad
, p. 568 - 575 (2019)
This report provides a description of the preparation and characterization of a Fe3O4@Ag-β-CD composite as a new magnetically recoverable catalyst for the synthesis of a number of biologically and pharmaceutically significant organic
Synthesis and aromatization of dihydropyrimidines structurally related to calcium channel modulators of the nifedipine-type
Vanden Eynde, Jean Jacques,Audiart, Nancy,Canonne, Vale?rie,Michel, Sophie,Van Haverbeke, Yves,Oliver Kappe
, p. 1967 - 1978 (1997)
A series of 4-substituted ethyl 2-methoxy-6-methyl-1,4-dihydropyrimidine-5-carboxylates has been synthesized and was successfully aromatized to the corresponding pyrimidines with various oxidizing reagents. O-Demethylation of such pyrimidines provides a simple route to pyrimidinone derivatives which are otherwise difficult to obtain.
One-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by acidic ionic liquids under solvent-free conditions
Gui, Jianzhou,Liu, Dan,Wang, Chan,Lu, Feng,Lian, Jingzhao,Jiang, Heng,Sun, Zhaolin
, p. 3436 - 3443 (2009)
The acidic ionic liquids were new catalysts for the one-pot Biginelli reaction coupling of aldehyde, 1,3-dicarbonyl compound, and urea to afford the corresponding dihydropyrimidinones in good yields under solvent-free conditions. The catalysts could be re
Manganese-containing periodic mesoporous organosilica with ionic-liquid framework (Mn@PMO-IL): A powerful, durable, and reusable nanocatalyst for the biginelli reaction
Elhamifar, Dawood,Shabani, Ahmad
, p. 3212 - 3217 (2014)
The catalytic application of a novel manganese-containing periodic mesoporous organosilica with ionic-liquid framework (Mn@PMO-IL) in the Biginelli reaction was investigated. First, the Mn@PMO-IL nanocatalyst was prepared and characterized by TEM, SEM, X-
Bentonite with high loading of ionic liquid: A potent non-metallic catalyst for the synthesis of dihydropyrimidinones
Koohestani, Fatemeh,Sadjadi, Samahe
, (2020)
In attempt to devise an environmentally-benign metal-free catalyst, ionic liquid was supported on bentonite that is a natural clay. To enhance the loading of ionic liquid, bentonite was first functionalized with a dendritic moiety through successive react
