Bulletin of the Chemical Society of Ethiopia, 2017 The reactive intermediate generated by the addition of alkyl isocyanides to dialkyl acetylenedicarboxylates was trapped by N-formyl urea to produce highly functionalized dihydropyrimidinones in fairly good yields.
A. Naderi, B. Mohtat
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Synthesis of some dihydropyrimidinone derivatives and study of their anti-inflammatory activity [PDF]
, 2018 This research revealed that the numbers of available heterocyclic compounds are mainly focused on nitrogen containing compounds, such as quinazolines, indoles, benzimidazole, quinoxalines, coumarins and pyrimidines etc. A mixture of substituted aldehydes
Choudhury, Tirthankar, Podilla, Naresh
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Results in Chemistry, 2020 In this paper, a magnetic nanocatalyst of Fe3O4@SiO2-ZnCl2 has been used which enhances the synthesis of benzimidazoles, coumarins, benzoxazines and dihydropyrimidinones. To begin with, 2-substituted benzimidazoles have been synthesized in proper to high
Saba Rahimi, Ebrahim Soleimani
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Eutectic Salt Catalyzed Environmentally Benign and Highly Efficient Biginelli Reaction [PDF]
, 2012 A simple deep eutectic solvent based on tin (II) chloride was used as a dual catalyst and environmentally benign reaction medium for an efficient synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives, from aromatic and aliphatic aldehydes, 1,3 ...
Azizi, Najmadin +2 more
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Ultrasound-assisted one-pot synthesis of dihydropyrimid-2-one/thiones catalyzed by zirconyl chloride hexahydrate [PDF]
مجلة التربية والعلم, 2013 Different substituted dihydropyrimidinones and dihydropyrimidin thiones were generated from the Biginelli reaction between aromatic aldehydes, 1,3-dicarbonyl and urea or thiourea under ultrasonic irradiation method.
Omar Yahya, Badie Ahmed, Imad Thanoon
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Mesoporous molecular sieve MCM-41 catalyzed one-pot synthesis of 3,4-dihydro-2(1H)-pyrimidinones and –thiones under solvent-free conditions [PDF]
, 2011 An efficient synthesis of 3,4-dihydro-2(1H)-pyrimidinones and -thiones using MCM-41 as the catalyst from an aldehyde, β-keto ester, and urea or thiourea under solvent-free conditions is described.KEY WORDS: Biginelli reaction, Dihydropyrimidinones, MCM ...
Baghernejad, Bita +3 more
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Comparison of Catalytic Effect of Alkali and Alkaline Earth Metals Hydrogen Sulfate: As the Promoter for an Efficient Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones under Solvent-Free Conditions [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2005 Alkali and alkaline earth metals hydrogen sulfate catalyzed the one-pot three component condensation reactions of aldehydes, 1,3-dicarbonyl compounds and urea or thiourea under solvent-free conditions leading to 3,4-dihydropyrimidin-2(1H)-ones in high ...
Ahmad Shaabani +4 more
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An Efficient Method for the Synthesis of Dihydropyrimidines Using Bronsted Acidic Ionic Liquid: a Solvent and Heating Free Reaction [PDF]
, 2019 This work was funded by Russian Science Foundation (Ref. No. 18-73-00301)
Adinath Majee +3 more
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Antibacterial Studies of Dihydropyrimidinones and Pyrimidinethiones [PDF]
Journal of Bacteriology & Mycology: Open Access, 2017 Some new dihydro pyrimidinone and pyrimidinethione compounds have been synthesized and their antibacterial activities have been studied in dimethyl formamide and dimethyl sulphoxide against some Gram positive and Gram negative bacteria For this Agar well diffusion method is used It is observed that inhibition depends on solvent bacterial strain ...
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Molecules, 2006 The catalytic ability of ZrO2/SO42- to promote solventless three-componentcondensation reactions of a diversity of aromatic aldehydes, urea or thoiurea and ethylacetoacetate was studied.
Guillermo Negrón-Silva +4 more
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