Category: 322-46-3

Improved organic hydrogen carriers with superior thermodynamic properties was written by Lu, Rui-Feng;Boethius, Gustav;Wen, Shu-Hao;Su, Yan;Deng, Wei-Qiao. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2009.Recommanded Product: 322-46-3 This article mentions the following:

By incorporation of N atoms into naphthalene, we present a theor. investigation to seek improved organic hydrogen carriers with an explicit guideline. The release of H₂ is found to be greatly favored thermodynamically and the corresponding cycloalkanes possess high hydrogen storage capacity. This offers extensive candidates for practical applications of the promising hydrogen energy. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Recommanded Product: 322-46-3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine has the elements of symmetry for the point group D2h. It has three mutually perpendicular two-fold axes. It also has three mutually perpendicular planes of symmetry. As a result, pyrazine also has a centre of symmetry. Pyrazine-based skeletons were incorporated into agents targeting a range of ailments. Many derivatives were synthesized and evaluated as potential cancer treatments.Recommanded Product: 322-46-3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Tris(dipivaloylmethanato)europium-induced shifts of proton resonances in π-deficient nitrogen heterocycles was written by Armarego, W. L. F.;Batterham, T. J.;Kershaw, J. R.. And the article was included in Organic Magnetic Resonance in 1971.Product Details of 322-46-3 This article mentions the following:

Tris(dipivaloylmethanato)europium, [Eu(DPM)3], induced shifts of the PMR of pyridine and its 2-Me, 3-Me, 2,3-di-Me and 2,5-di-Me derivatives, pyridazine, pyrimidine, pyrazine, quinoline, isoquinoline, 1,6-, 1,7- and 1,8-naphthyridine, cinnoline, phthalazine, quinazoline, quinoxaline, 1,4,5- and 1,4,6-triazanaphthalene, pteridine, acridine, phenanthridine and 1,10-phenanthroline, were measured for solutions containing 0.1, 0.3, and 0.5 molar equivalents of Eu(DPM)3. Differences in the behavior of these heterocycles are discussed in terms of the steric relations between the heterocycle and the complex. The 3 cos2 * dhi term, present in the expression for calculating pseudocontact shifts, is important. The order of basicity of these heterocycles, as measured by their pKa values, cannot be used to predict the order of Eu(DPM)3 induced chem. shifts. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Product Details of 322-46-3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazines are volatile compounds that are used in the cosmetic, food, flavor, and fragrance industries. A number of pyrazine-based derivatives were used as dyes or fluorescent probes.Product Details of 322-46-3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Copper perchlorate and tetrafluoridoborate compounds with the ligand 1,4,5-triazanaphthalene. Gradual transformation of mononuclear Cu(II) compounds via polynuclear mixed-valence Cu(ii)/Cu(i) species to dinuclear Cu(i); syntheses, characterizations and X-ray structures was written by van Albada, Gerard A.;Mutikainen, Ilpo;Ghazzali, Mohamed;Al-Farhan, Khalid;Reedijk, Jan. And the article was included in Dalton Transactions in 2012.Related Products of 322-46-3 This article mentions the following:

When the ligand 1,4,5-triazanaphthalene (abbreviated as tan) is reacted with Cu(II) BF₄^– and ClO₄^– salts, a variety of mononuclear compounds has been found, all with the [Cu(tan)₄] unit and varying amounts of weakly coordinating axial ligands and lattice solvents. Reproducible compounds formed include two purple compounds, analyzing as [Cu(tan)₄](ClO₄)₂(CH₃OH)₂(H₂O) (1) and [Cu(tan)₄](BF₄)₂(CH₃OH)_1.5(H₂O) (3), and two blue compounds, analyzing as [Cu(tan)₄](ClO₄)₂(H₂O)₂ (2) and [Cu(tan)₄]₂(BF₄)₂(H₂O)₂ (4). Upon standing at room temperature, red-colored, mixed-valence dinuclear-based 3D coordination polymers are formed by conversion of the purple/blue products, of which [Cu₂(tan)₄]_n(BF₄)_3n (5) and the isomorphic methanol-water adduct [Cu(tan)₄]_n(BF₄)_3n(CH₃OH)_n(H₂O)_5n (5A) are presented in this paper. In addition a fully reduced dinuclear Cu(I) compound of formula [Cu₂(tan)₃(ClO₄)₂] (7) has been observed, and structurally characterized, as a rare three-blade propeller structure, with a Cu-Cu distance of 2.504 Å. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Related Products of 322-46-3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine heterocycles and their benzo derivatives possess many interesting properties, including chemical reactivity profiles, and have diverse applications in total synthesis, medicine, chemical biology, materials, dyes, and imaging. Pyrazine-based skeletons were incorporated into agents targeting a range of ailments. Many derivatives were synthesized and evaluated as potential cancer treatments.Related Products of 322-46-3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Synthesis and biological evaluation of pyrido[2,3-b]pyrazine and pyrido[2,3-b]pyrazine-N-oxide as selective glycine antagonists was written by Cugola, Alfredo;Donati, Daniele;Guarneri, M.;Micheli, Fabrizio;Missio, Andrea;Pecunioso, Angelo;Reggiani, Angelo;Tarzia, G.;Zanirato, V.. And the article was included in Bioorganic & Medicinal Chemistry Letters in 1996.Synthetic Route of C7H5N3 This article mentions the following:

Pyrido[2,3-b]pyrazines and pyrido[2,3-b]pyrazines-N-oxides have been synthesized and evaluated for in vitro/in vivo antagonistic activity at the glycine site on the NMDA receptor. Efforts to improve the glycine vs. AMPA selectivity focussed on both aromatic substitution and on modification of the heterocyclic ring. The compounds showed a good affinity for the glycine binding site and > 100-fold selectivity vs. the AMPA receptor. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Synthetic Route of C7H5N3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine is an N-heterocyclic moiety, and it can be easily prepared from ethylenediamine and 1,2-diketone, α-hydroxyketone, α-methyl ketone. Pyrazines undergo nearly all of the same reactions as pyrimidines, from nucleophilic substitution (SNAr) to palladium-catalyzed cross coupling reactions.Synthetic Route of C7H5N3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Synthesis and characterization of dirhodium(II,II) formamidinate complexes containing short-bite nitrogen ligands was written by Tresoldi, Giuseppe;Lo Schiavo, Sandra;Nicolo, Francesco;Cardiano, Paola;Piraino, Pasquale. And the article was included in Inorganica Chimica Acta in 2003.Formula: C7H5N3 This article mentions the following:

The Rh⁴⁺₂ complex [Rh₂(form)₂(O₂CCF₃)₂(H₂O)₂] (form = N,N’-di-p-tolylformamidinate anion) easily reacts with the short-bite ligand pyrido[2,3-b]pyrazine, molar ratio 1:2, yielding [Rh₂(form)₂(pyrido[2,3-b]pyrazine)₂(O₂CCF₃)₂] which was characterized by conductivity measurements and IR and ¹H NMR spectroscopy. The complex exhibits a lantern type structure with the two N ligands coordinated, in a cisoid arrangement, at the equatorial positions across the dirhodium unit while the axial sites are occupied by two monoligated trifluoroacetate groups. Conductivity and IR data show that in DMSO the complex undergoes dissociation of both the axial ligands leading to [Rh₂(form)₂(pyrido[2,3-b]pyrazine)₂(DMSO)₂]²⁺. The parent compound reacts also with 2-chloro-5,7-dimethyl-1,8-naphthyridine and 2,7-dichloro-5-methyl-1,8-naphthyridine leading to [Rh₂(form)₂(O₂CCF₃)(C₁₀H₉N₂O)(H₂O)] and [Rh₂(form)₂(O₂CCF₃)(C₉H₆N₂ClO)(H₂O)], resp., in which the dirhodium unit is supported by three different bridging ligands. Microanal., ¹H NMR and x-ray data unambiguously show that the reaction proceeds, unexpectedly, with elimination of a trifluoroacetate group and the substitution of a Cl atom of the naphthyridine ligands by O. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Formula: C7H5N3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine has the elements of symmetry for the point group D2h. It has three mutually perpendicular two-fold axes. It also has three mutually perpendicular planes of symmetry. As a result, pyrazine also has a centre of symmetry. A large number of pyrazine derivatives are known for their antitumor, antibiotic, anticonvulsant, antituberculosis, and diuretic activities.Formula: C7H5N3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Separation and characterization of chloroform-soluble preasphaltenes in non-distillable coal liquids was written by Allen, Todd W.;Hurtubise, Robert J.;Silver, Howard F.. And the article was included in Fuel in 1987.Computed Properties of C7H5N3 This article mentions the following:

N compounds and hydroxy-aromatics from CHCl₃-soluble/PhMe-insoluble preasphaltenes of a Kentucky coal-liquid sample were characterized by elemental anal., IR spectroscopy and field-ionization mass spectrometry. A similar approach was used for the general characterization of the pyridine-soluble/CHCl₃-insoluble preasphaltenes. A new HPLC method was applied for the separation of a N-compound fraction and a hydroxy-aromatic fraction from the CHCl₃-soluble/PhMe-insoluble preasphaltenes. The chromatog. method was very selective in separating polar N compounds and polar hydroxy-aromatics The separation order within a given fraction was based on increasing polarity of the compounds Spectral results indicated that the CHCl₃-soluble preasphaltenes were composed of structures with mol. weights ≈ 200-800 and were predominantly mono- and dihydroxy compounds In addition, nonhydroxy compounds that contained pyrrolic functionality were present. Solubility information for the preasphaltenes in various solvents was also obtained. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Computed Properties of C7H5N3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazinesare six-membered aromatic heterocyclic organic compounds with two nitrogen atoms at 1,4-positions. Pyrazine is a weaker base (pKb = 13.4) than pyridine (pKb = 8.8), pyrimidine (pKb = 12.7). Pyrazines undergo nearly all of the same reactions as pyrimidines, from nucleophilic substitution (SNAr) to palladium-catalyzed cross coupling reactions.Computed Properties of C7H5N3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Alkylating reduction of some polynitrogen heteroaromatic compounds was written by Cosmao, Jean Marie;Collignon, Noel;Queguiner, Guy. And the article was included in Journal of Heterocyclic Chemistry in 1979.Electric Literature of C7H5N3 This article mentions the following:

The reduction-alkylation of quinoxaline, phthalazine and pyrido[2,3-b]pyrazine by KBH₄ in a carboxylic acid medium is described. HCO₂H, HOAc, ClCH₂CO₂H, and EtCO₂H were used. The diazine ring of the mol. was reduced and alkylated into an N,N‘-dialkyltetrahydro compound With quinoxaline and HCO₂H, N-formylation may be an important factor. Sodium borodeuteride gave a hexadeuterated compound In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Electric Literature of C7H5N3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine is a symmetrical molecule with point group D2h. Pyrazine is less basic than pyridine, pyridazine and pyrimidine. Pyrazines are chemical compounds (technically called “methoxypyrazines”) found in grape skin and stems that are responsible for many “green” flavors in wine. Levels of pyrazines are dependent on viticultural practices, climate, and grape variety.Electric Literature of C7H5N3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Preparation of polystyryl-1,5-naphthyridine, polystyrylpyrido[2,3-b]pyrazine, and some of their copper(II) complexes was written by Valera, Nestor S.;Hendricker, David G.. And the article was included in Polymer in 1981.SDS of cas: 322-46-3 This article mentions the following:

Poly(styryl-1,5-naphthyridine) and poly(styrylpyrido[2,3-b]pyrazine) Cu (II) complexes were prepared by lithiation of brominated divinylbenzene-styrene copolymer, followed by addition of 1,5-naphthyridine or pyrido[2,3-b]pyrazine, resp. Cu(NO₃)₂ was added to the polystyryl compounds, and the resulting complexes were characterized by elemental anal. and IR. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3SDS of cas: 322-46-3).

Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine heterocycles and their benzo derivatives possess many interesting properties, including chemical reactivity profiles, and have diverse applications in total synthesis, medicine, chemical biology, materials, dyes, and imaging. Substituted pyrazines have been found as subunits of multiple synthetically constructed therapeutic agents, as well as several natural products.SDS of cas: 322-46-3

Referemce:
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem