Category: 2213-63-0

HPLC of Formula: C8H4Cl2N2, New research progress on 2213-63-0 in 2021. In classical electrochemical theory, both the electron transfer rate and the adsorption of reactants at the electrode control the electrochemical reaction. 2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2. In a Article，once mentioned of 2213-63-0

A novel bipolar donor-acceptor-donor (D-A-D) type quinoxaline derivative, 2,3-di(9H-carbazol-9-yl)quinoxaline (DCQ) was designed and synthesized. The spectroscopic, thermal, photophysical and electrochemical properties of DCQ were systematically investigated. DCQ was employed as a yellow host material for phosphorescent organic light emitting diodes (PHOLEDs) having both a good electron and hole transport properties. Importantly, DCQ as a host material exhibits excellent device performance having a triplet energy of 2.46 eV The maximum quantum efficiency of 24.6% at 3% doping concentration and power efficiency of 49.6 lm/W at 5% doping concentration in yellow phosphorescent device.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1517 | ChemSpider

Reference of 2213-63-0, New research progress on 2213-63-0 in 2021. Redox catalysis has been broadly utilized in electrochemical synthesis due to its kinetic advantages over direct electrolysis. 2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2. In a Article，once mentioned of 2213-63-0

Bis(pyrazino) tetrathiafulvalene (BPTTF), bis(quinoxalino) tetrathiafulvalene (BQTTF), bis(pyrimidino) tetrathiafulvalenes (BPMTTFs), bis(pyridazino) tetrathiafulvalenes (BPDTTFs), bis(pyrazino) tetraselenafulvalene (BPTSF) and bis(quinoxalino) tetraselenafulvalene (BQTSF) were prepared.These compounds were found to be ?-donors and gave C.T. salts.The perchlorate salt of BPTTF was found to be a 3-D conductor.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1494 | ChemSpider

New Advances in Chemical Research, May 2021. In heterogeneous catalysis, catalysts provide a surface to which reactants bind in a process of adsorption. Recommanded Product: 2213-63-0, In a article, mentioned the application of 2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2

Quinoxalines belong to a class of excellent heterocyclic scaffolds owing to their wide biological properties and diverse therapeutic applications in medicinal research. They are complementary in shapes and charges to numerous biomolecules they interact with, thereby resulting in increased binding affinity. The pharmacokinetic properties of drugs bearing quinoxaline cores have shown them to be relatively easy to administer either as intramuscular solutions, oral capsules or rectal suppositories. This work deals with recent advances in the synthesis and pharmacological diversities of quinoxaline motifs which might pave ways for novel drugs development.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1243 | ChemSpider

New Advances in Chemical Research, May 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. category: quinoxaline, We’ll be discussing some of the latest developments in chemical about CAS: 2213-63-0, name is 2,3-Dichloroquinoxaline. In an article，Which mentioned a new discovery about 2213-63-0

The reaction of o-phenylene diamine and ethyl oxamate is reinvestigated and led to 3-aminoquinoxalin-2(1H)-one rather than benzimidazole-2-carboxamide as was previously reported. The structure of the obtained quinoxaline has been confirmed by X-ray. The anti-tumor activity of synthesized quinoxalines 1-21 has been evaluated by studying their possible inhibitory effects on Epstein-Barr virus early antigen (EBV-EA) activation induced by 12-O-tetradecanoylphorbol-13- acetate (TPA). Among the studied compounds 1-21, compounds 12, 8, 13, 18, 17 and 19, respectively, demonstrated strong inhibitory effects on the EBV-EA activation without showing any cytotoxicity and their effects being stronger than that of a representative control, oleanolic acid. Furthermore, compound 12 exhibited a remarkable inhibitory effect on skin tumor promotion in an in vivo two-stage mouse skin carcinogenesis test using 7,12-dimethylbenz[a]anthracene (DMBA) as an initiator and TPA as a promoter. The result of the present investigation indicated that compound 12 might be valuable as a potent cancer chemopreventive agent. Moreover, the molecular docking into PTK (PDB: 1t46) has been done for lead optimization of the aforementioned compounds as potential PTK inhibitors.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1333 | ChemSpider

New Advances in Chemical Research in 2021. In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 2213-63-0, name is 2,3-Dichloroquinoxaline, introducing its new discovery. Synthetic Route of 2213-63-0

We have reported synthesis of monoalkynyl- and dialkynyl-quinoxalines using Pd(0)/PEG nanoparticles as a catalyst and the tandem cyclization of the dialkynequinoxalines with sodium azide in high yields. The structures of all synthesized compounds were confirmed by IR, NMR and ESI-MS. The derivatives showed the absorption maxima at the region of 370 to 442 nm and emission maxima at the region of 386 to 539 nm with high fluorescence intensity in chloroform. It suggests that compounds 4b, 4c, 5b and 5c can be potential candidates for optical device applications.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1487 | ChemSpider

New Advances in Chemical Research, May 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. Safety of 2,3-Dichloroquinoxaline, We’ll be discussing some of the latest developments in chemical about CAS: 2213-63-0, name is 2,3-Dichloroquinoxaline. In an article，Which mentioned a new discovery about 2213-63-0

Liquid-crystalline (LC) N-heteroacenes, tetraazanaphthacene (TANC), and fluoflavin (FFV) were synthesized, and their self-assembly into columnar LC structures at room temperature was investigated. LC TANC and LC FFV functioned as an electron acceptor and electron donor, respectively. A TANC/FFV LC mixture showed ESR activity in the presence of a strong base. Copyright

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Safety of 2,3-Dichloroquinoxaline, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 2213-63-0, in my other articles.

Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1373 | ChemSpider

2213-63-0, New research progress on 2213-63-0 in 2021. Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, preparation and modification of special coatings, and research on the structure and performance of functional materials.2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2. In a article，once mentioned of 2213-63-0

A series of novel quinoxaline derivatives linked to a pyridine moiety through phenylamino or phenoxy residue was synthesized and evaluated as candidate anticonvulsants. The synthesis was achieved through reaction of 2,3-dichloroquinoxaline (1) with an equimolar amount of 4-aminoacetophenone to give compound 2 which is considered as an important synthon for the construction of a pyridine ring via several synthetic routs. Some compounds were synthesized through formation of the intermediate alpha,beta-unsaturated compounds which, in turn, were allowed to react with malononitrile to give the corresponding alkoxypyridines (8-17). Compounds 18-21 were synthesized by a one-pot simple reaction between 2, the appropriate aldehyde, and malononitrile in sodium alkoxide solution. Moreover, they can be synthesized through reaction of compound 2 and arylidenemalononitrile in sodium alkoxide. The phenoxy analogues were prepared by reaction of 1 with 4-hydroxyacetophenone or 3-hydroxybenzaldehyde to give 22 and 27, respectively. These compounds, in turn, were allowed to react with malononitrile and the proper carbonyl compound in presence of sodium alkoxide in a one-pot reaction technique to give the target compounds. Biological evaluation of the prepared compounds showed that some of them are potent anticonvulsant agents. The detailed synthesis, spectroscopic and biological data are reported.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1482 | ChemSpider

Electric Literature of 2213-63-0, New research progress on 2213-63-0 in 2021. As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world.2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2. In a article，once mentioned of 2213-63-0

The controllable switching of suitably bridged resorcin[4]arene cavitands between a “vase” conformation, with a cavity capable of guest inclusion, and a “kite” conformation, featuring an extended flattened surface, provides the basis for ongoing developments of dynamic molecular receptors, sensors, and molecular machines. This paper describes the synthesis, X-ray crystallographic characterization, and NMR analysis of the “vase-kite” switching behavior of a fully pyrazine-bridged cavitand and five other mixed-bridged quinoxaline-bridged cavitands with one methylene, phosphonate, or phosphate bridge. The pyrazine-bridged resorcin[4]arene cavitand displayed an unexpectedly high preference for the kite conformation in nonpolar solvents, relative to the quinoxaline-bridged analogue. This observation led to extensive solvent-dependent switching studies that provide a detailed picture of how solvent affects the thermal vase-kite equilibration. As for any thermodynamic process in the liquid phase, the conformational equilibrium is affected by how the solvent stabilizes the two individual states. Suitably sized solvents (benzene and derivatives) solvate the cavity of the vase form and reduce the propensity for the vase-to-kite transition. Correspondingly, the kite geometry becomes preferred in bulky solvents such as mesitylene, incapable of penetrating the vase cavity. As proposed earlier by Cram, the kite form is preferred at low temperatures due to the more favorable enthalpy of solvation of the enlarged surface. Furthermore, the kite conformation is more preferred in solvents with substantial hydrogen-bonding acidity: weak hydrogenbonding interactions between the mildly basic quinoxaline and pyrazine nitrogen atoms and solvent molecules are more efficient in the open kite than in the closed vase form. Vase-to-kite conversion is entirely absent in dipolar aprotic solvents lacking any H-bonding acidity. Thermal vase-kite switching requires fully quinoxaline- or pyrazinebridged cavitands, whereas pH-controlled switching is also applicable to systems incorporating only two or three such bridges.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1523 | ChemSpider

New Advances in Chemical Research, May 2021. In heterogeneous catalysis, catalysts provide a surface to which reactants bind in a process of adsorption. Recommanded Product: 2213-63-0, In a article, mentioned the application of 2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2

Urea transporter A (UT-A) isoforms encoded by the Slc14a2 gene are expressed in kidney tubule epithelial cells, where they facilitate urinary concentration. UT-A1 inhibition is predicted to produce a unique salt-sparing diuretic action in edema and hyponatremia. Here we report the discovery of 1,2,4-triazoloquinoxalines and the analysis of 37 synthesized analogues. The most potent compound, 8ay, containing 1,2,4-triazolo[4,3-a]quinoxaline-substituted benzenesulfonamide linked by an aryl ether, rapidly and reversibly inhibited UT-A1 urea transport by a noncompetitive mechanism with IC50 ? 150 nM; the IC50 was ?2 muM for the related urea transporter UT-B encoded by the Slc14a1 gene. Molecular modeling suggested a putative binding site on the UT-A1 cytoplasmic domain. In vitro metabolism showing quinoxaline ring oxidation prompted the synthesis of metabolically stable 7,8-difluoroquinoxaline analogue 8bl, which when administered to rats produced marked diuresis and reduced urinary osmolality. 8bl has substantially improved UT-A1 inhibition potency and metabolic stability compared with prior compounds.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1423 | ChemSpider

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. SDS of cas: 2213-63-0, In a article, mentioned the application of 2213-63-0, Name is 2,3-Dichloroquinoxaline, molecular formula is C8H4Cl2N2

The title compound (1) was efficiently synthesized in two steps starting from 2,3-dichloroquinoxaline (2) and 1-amino-2-naphthol (3); the method involves cyclization of 2 with 3 and subsequent salcomine oxidation. The compound (1) showed unique inhibitory activity against a panel of human cancer cell lines.

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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N1449 | ChemSpider