Synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by poly(ferric 2-acrylamido-2-methylpropanesulfonate)
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DOI: 10.1007/s11696-020-01327-7
Abstract: Poly(ferric 2-acrylamido-2-methylpropanesulfonate) (PFAMPS) was prepared via the reaction of poly(2-acrylamido-2-methylpropanesulfonic acid) and Fe(OH)3. PFAMPS was used as a heterogeneous catalyst for the Biginelli reaction of aldehyde, ethyl acetoacetate, and urea to synthesize 3,4-dihydropyrimidin-2(1H)-ones with yields… read more here.
Keywords: poly ferric; ferric acrylamido; acrylamido methylpropanesulfonate; acrylamido ... See more keywords
Solvent free one-pot multi-component synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by mesoporous NH4H2PO4/MCM-41 as an environmentally friendly, cheap, and effective catalyst
Sign Up to like & getrecommendations! Published in 2017 at "Arabian Journal of Chemistry"
DOI: 10.1016/j.arabjc.2012.12.001
Abstract: Abstract A green and efficient method is described for the solvent free synthesis of 3,4-dihydropyrimidin-2(1H)-ones through one-pot three-component condensation of ethyl acetoacetate, an aryl aldehyde, and urea using mesoporous MCM-41 supported ammonium dihydrogen phosphate (NH4H2PO4/MCM-41)… read more here.
Keywords: synthesis dihydropyrimidin; nh4h2po4 mcm; one pot; catalyst ... See more keywords
Visible-Light-Induced Radical Condensation Cyclization to Synthesize 3,4-Dihydropyrimidin-2-(1H)-ones/thiones Using Photoexcited Na2 Eosin Y as a Direct Hydrogen Atom Transfer (HAT) Catalyst
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DOI: 10.1021/acsomega.1c05808
Abstract: The data suggests that Na2 eosin Y-derived photoinduced states act as a HAT catalyst for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones/thiones in ethanol at room temperature. This research establishes a novel function for using a nonmetallic natural… read more here.
Keywords: na2 eosin; ones thiones; dihydropyrimidin ones; visible light ... See more keywords
Efficient and Recoverable Bio-Organic Catalyst Cysteine for Synthesis, Docking Study, and Antifungal Activity of New Bio-Active 3,4-Dihydropyrimidin-2(1H)-ones/thiones Under Microwave Irradiation
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DOI: 10.1021/acsomega.2c02449
Abstract: An eco-friendly green bio-organic catalyst and low-cost 3,4-dihydropyrimidin-2(1H)-ones/thione derivatives 4–7 have been synthesized using a high-yield, synthetic method via a one-pot, three-component process between 4-formylphenyl-4-methylbenzenesulfonate (1), thiourea, or urea and ethyl acetoacetate or acetylacetone under… read more here.
Keywords: microwave irradiation; dihydropyrimidin ones; bio; bio organic ... See more keywords
Solvent and catalyst free synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones by twin screw extrusion
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DOI: 10.1039/c9gc00036d
Abstract: Rapid, high yielding, and solvent and catalyst free synthesis of 3,4-dihydropyrimidin-2-(1H)-ones/thiones by twin screw extrusion. read more here.
Keywords: solvent catalyst; dihydropyrimidin ones; free synthesis; catalyst free ... See more keywords
Carbazole-based photocatalyst (4CzIPN) for novel donor–acceptor (D–A) fluorophore-catalyzed visible-light-induced photosynthesis of 3,4-dihydropyrimidin-2-(1H)-ones/thiones via a proton-coupled electron transfer (PCET) process
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DOI: 10.1039/d2ra07064b
Abstract: Based on the Biginelli reaction of β-ketoesters, arylaldehydes, and urea/thiourea, we created a green radical synthesis procedure for 3,4-dihydropyrimidin-2-(1H)-ones/thiones. A PCET (proton-coupled electron transfer) photocatalyst was used in an ethanol solution in an air environment… read more here.
Keywords: ones thiones; coupled electron; electron transfer; dihydropyrimidin ones ... See more keywords
Chiral Separation of 3,4-dihydropyrimidin-2(1H)-ones and 3,4-di -hydropyrimidin- 2(1H)-thiones Enantiomers by HPLC on Chiralcel®OD-H
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DOI: 10.2174/1573411015666190115152840
Abstract: Ten racemic 3,4-dihydropyrimidin-2(1H)-ones and 3,4-dihydropyrimidin- 2(1H)-thiones were separated by liquid chromatography on Chiralcel®OD-H column containing cellulose tris(3, 5-dimethylphenylcarbamate). The enantioseparation was carried out using Chiralcel®OD-H polysaccharide-type chiral stationary phase to resolve such enantiomers under normal-phase… read more here.
Keywords: chiral separation; chiralcel; dihydropyrimidin; dihydropyrimidin ones ... See more keywords
Synthesis and Antidepressant activity of 3, 4-dihydropyrimidin-2(1H)-ones
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DOI: 10.5958/0974-360x.2019.00962.4
Abstract: Derivatives of 3, 4- dihydropyrimidin-2(1H)-one and2, 5dioxo,4-aryl octahydroquinazolines were synthesized by microwave irradiation. The synthesized derivatives were characterized for physicochemical parameters and the spectroscopic studies. Compounds were screened for its antidepressant activity by using Tail… read more here.
Keywords: synthesis antidepressant; test; activity; dihydropyrimidin ones ... See more keywords