Results 31 to 40 of about 207,447 (300)

Poly[[tetramethanolbis[4-oxo-3-(pyridin-4-yl)-1-(2,4,6-trichlorophenyl)-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-6-olato]disodium]–diethyl ether–methanol (1/1/2)]

open access: yesIUCrData, 2016
In the title compound, [Na2(C16H7Cl3N5O2)2(CH3OH)4]·C4H10O·2CH3OH, the central pyrazolo[3,4-d]pyrimidine system makes dihedral angles of 82.98 (7)° with the trichlorophenyl ring and 13.11 (15)° with the pyridine ring.
Bassam Abu Thaher   +2 more
doaj   +1 more source

Discovery of novel isonipecotic acid-based heteroaryl amino acid derivatives as potential anticonvulsant agents: Design, synthesis, in-silico ADME study, and molecular docking studies

open access: yesJournal of Pharmacy and Bioallied Sciences, 2023
Background: Epilepsy is a neurological disorder characterized by anomalous brain activity, convulsions, and odd behavior. Several substituted-(naphthalen-2-yl)-3-(1H-indol-3-yl) allyl)-1,4-dihydropyridine-4-carboxylic acid derivatives (5a-j) were ...
Mohammad M Ahmad   +6 more
doaj   +1 more source

Degradation of pyridine in coal chemical wastewater using ionizing radiation and synergistic processes

open access: yesFushe yanjiu yu fushe gongyi xuebao
This study investigates the degradation of pyridine in coal chemical wastewater using electron beam (EB) irradiation and explores the impacts of absorbed dose, initial pyridine concentration, and pH.
WANG Xinxuan   +5 more
doaj   +1 more source

An Efficient Synthesis of a Variety of Substituted Pyridine-3-Thiols

open access: yesЖурнал органічної та фармацевтичної хімії
A practical and convenient method for the synthesis of pyridine-3-thiols using substituted 3-iodopyridines as starting compounds has been developed. Based on the use of thiobenzoic acid as a sulfur donor in a two-step procedure, this approach made it ...
Oleksandr V. Borysov, Dmytro P. Bohdan
doaj   +1 more source

Scope and Limitations of a Novel Synthesis of 3-Arylazonicotinates

open access: yesMolecules, 2012
The reaction of 3-oxo-3-phenyl-2-phenylhydrazonal with functionally substituted and heteroaromatic substituted acetonitrile to yield arylazonicotinic acid derivatives and 5-arylsubstituted pyridines was established. In some cases the produced nicotinates
Awatef Mohamed El-Maghraby   +4 more
doaj   +1 more source

2,6-Bis(2-methyl-1,3-diazinan-2-yl)-pyridine

open access: yes, 2010
The title compound, C15H25N5, is an aminalization product between 2,6-diacetyl­pyridine and 1,3-diamino­propane. It crystallizes with two independent mol­ecules in the asymmetric unit with different conformations.
Bolte, Michael   +3 more
core   +1 more source

5,5'-(1,4-Phenylenedimethylylidene)bis(1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione)

open access: yesMolbank, 2010
A novel compound, 5,5'-(1,4-phenylenedimethylylidene)bis(1,3-diethyl-2-thioxodihydropyrimidine-4,6(1H,5H)-dione) (3) has been synthesized by condensation of 1,3-diethyl-2-thiobarbituric acid and terephthalaldehyde in anhydrous ethanol in the presence of ...
Salman A. Khan, Abdullah Mohamed Asiri
doaj   +1 more source

Pyridine-Catalyzed Radical Borylation of Aryl Halides

open access: yes, 2016
A pyridine-catalyzed transition-metal-free borylation reaction of haloarenes has been developed based on the selective cross-coupling of an aryl radical and a pyridine-stabilized boryl radical.
Lei Jiao (780172), Li Zhang (8200)
core   +1 more source

Synthesis, Crystallographic Study and Antibacterial Activity of Ternary Copper(II) Complex with Chromone-Based Ligand and Pyridine

open access: yesCrystals
A new copper(II) complex was synthesized using chromone-2-carboxylic acid as the main ligand, and coordinated pyridine molecules. The complex was successfully crystallized and structurally characterized by single crystal X-ray diffraction.
Nikolina Filipović   +6 more
doaj   +1 more source

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