Results 91 to 100 of about 1,000 (202)

(6aS*,6bS*,11R*,11aR*)-6-(2-Furylmethyl)-5,12-dioxo-5,6,6a,6b,7,11,11a,12-octahydrofuro[3′,2′:5,6]isoindolo[2,1-a]quinazoline-11-carboxylic acid

Acta Crystallographica Section E, 2011
The title compound, C23H18N2O6, is the product of an intramolecular thermal cycloaddition within 1-malein-2-[(E)-2-(2-furyl)vinyl]-4-oxo-3,4-dihydroquinazoline.
Mykola D. Obushak, Yuri I. Horak, Vladimir P. Zaytsev, Ekaterina L. Motorygina, Fedor I. Zubkov, Victor N. Khrustalev   +5 more
doaj   +1 more source

Studies on Heterocycles of Medicinal Interest [PDF]

, 2005
Not ...
Zalavadiya, Paresh D.
core  

Ultrasound-Assisted Synthesis of Some New N-(Substituted Carboxylic Acid-2-yl)-6-Methyl-4-Substituted Phenyl-3, 4-Dihydropyrimidine-2(1H)-One Carboxamides [PDF]

, 2018
In this work, the starting material 6-methyl-4- substituted phenyl-3,4-dihydropyrimidine-2-(1H)-one-5-carboxylic acid ethyl ester (3a,b) have been prepared from the condensation of benzaldehyde (or anisaldehyde), urea and ethyl acetoacetate, in presence ...
H.S. Hussain, Faiq, K. Hameed, Karzan
core   +1 more source

Pivalic acid assisted Biginelli reaction for synthesis of dihydropyrimidinones and dihydrothiopyrimidinones [PDF]

, 2020
677-681Herein is provided an alternate, simple, multigram scale, efficient route for Biginelli reaction for synthesis of dihydropyrimidinones using urea, ethylacetatoacetate, and benzaldehyde with pivalic ...
Anvekar, Tushar S, Chodankar, Anika Arjun, Gaonkar, Saurabh Sudan, Gawas, Anushri Laxman, Kadam, Hari K, Mhaldar, Shashank N, Salgaonkar, Lalitprabha N, Vaz, Teotone, Vernekar, Shruti Sagun   +8 more
core  

Synthesis, identification and application of a new ionic liquid based on 1-vinylimidazole, immobilized on graphene oxide nanosheets

Case Studies in Chemical and Environmental Engineering
In this research, a novel catalyst GO@[PBVIm]HSO4, which is an acidic polymer ionic liquid supported on a graphene oxide substrate, was synthesized. First, (3-aminopropyl) triethoxysilane was attached as a linker to the prepared graphene oxide.
Masoumeh Mirhasani, Reza Sandaroos, Behrooz Maleki, Sahar Peiman   +3 more
doaj   +1 more source

One-pot synthesis of dihydropyrimidinone and polyhydroquinoline derivatives with natural deep eutectic solvents (NADESs): Alternative to toxic organic solvents and environmental eco-friendly

Results in Chemistry
Natural deep eutectic solvents (NADESs) have emerged as a novel class of solvents with properties reminiscent of ionic liquids while offering additional advantages in terms of cost, environmental impact, and synthesis.
Sedigheh Ayazi Jannatabadi, Rahman Hosseinzadeh, Behrooz Maleki   +2 more
doaj   +1 more source

Ethyl 6-Methyl-2-oxo-4-{4-[(1-phenyl-1H-1,2,3-triazol-4-yl)methoxy]phenyl}-1,2,3,4-tetrahydropyrimidine-5-carboxylate

Molbank, 2019
The Biginelli reaction is an acid-catalyzed, three-component reaction between an aldehyde, a hydrogen methylene active compound, and urea (or its analogue) and constitutes a rapid and easy synthesis of highly functionalized heterocycles.
Itamar Luís Gonçalves, Gabriel Oliveira de Azambuja, Leonardo Davi, Guilherme Arraché Gonçalves, Luciano Porto Kagami, Gustavo Machado das Neves, João Pedro Silveira, Rômulo Faria Santos Canto, Vera Lucia Eifler-Lima   +8 more
doaj   +1 more source

MEDICINAL INTEREST OF AZO-BASED ORGANIC COMPOUNDS: A REVIEW [PDF]

, 2016
The azo derived products are versatile building blocker organic compounds used in drug research. In this review, we include the synthetic strategyand medicinal utility of some new azo derived candidates in recent years, which must be a good source of ...
Paidesetty, Sudhir Kumar, Sahoo, Jyotirmaya   +1 more
core   +1 more source

Synthesis and Antioxidant Activity of Novel Biginelli Adducts with Phenolic Fragments

Applied Sciences
In this work, eco-friendly ceric ammonium nitrate (CAN) and ferric chloride hexahydrate catalysts in ethanol/acetonitrile systems were used to efficiently synthesize novel dihydropyrimidinone (-thione) derivatives via the Biginelli reaction. The obtained
Olga V. Snastina, Erik R. Sabitov, Viktoria A. Kuricheva, Vladimir N. Koshelev   +3 more
doaj   +1 more source

Structural data of DNA binding and molecular docking studies of dihydropyrimidinone transition metal complexes

Data in Brief, 2018
A series of some novel copper complexes derived from Biginelli condensation of DHPHS. The ligand and its transition metal complexes show more antimicrobial activities which was substantiated by molecular docking studies.
P. Vijayakrishnan, S. Arul Antony, D. Velmurugan   +2 more
doaj   +1 more source