Category: 56413-95-7

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 56413-95-7, is researched, Molecular C6Cl2N4, about Tetrapyrazinoporphyrazine with eight peripheral adamantanylsulfanyl units – Synthesis and physicochemical study, the main research direction is adamantanylsulfanyl tetrapyrazinoporphyrazine preparation crystal structure physicochem.Recommanded Product: 5,6-Dichloropyrazine-2,3-dicarbonitrile.

A novel, (1-adamantylsulfanyl)-octasubstituted tetrapyrazinoporphyrazine has been synthesized and analyzed for its key physicochem. properties. Also, two 1-adamantylsulfanyl-substituted pyrazine derivatives were compared, and their crystallog. structures as well as chem. reactivity were assessed and discussed. Porphyrazine macrocycle showed good fluorescence and singlet oxygen generation properties as well as photostability. In addition, studied adamantylsulfanyl porphyrazine, despite its hydrophobic nature, revealed good solubility in polar solvents. Electrochem. studies revealed that the macrocycle underwent oxidation by one one-electron process and reduction with two one-electron processes.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Novakova, Veronika; Reimerova, Petra; Svec, Jan; Suchan, Daniel; Miletin, Miroslav; Rhoda, Hannah M.; Nemykin, Victor N.; Zimcik, Petr researched the compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile( cas:56413-95-7 ).Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile.They published the article 《Systematic investigation of phthalocyanines, naphthalocyanines, and their aza-analogues. Effect of the isosteric aza-replacement in the core》 about this compound( cas:56413-95-7 ) in Dalton Transactions. Keywords: zinc phthalocyanine naphthalocyanine complex preparation fluorescence DFT calculation electrochem. We’ll tell you more about this compound (cas:56413-95-7).

Zinc complexes of phthalocyanine, naphthalocyanine and their aza-analogs with alkylsulfanyl substituents were synthesized and characterized by UV-visible and MCD spectroscopy, and their redox properties were investigated using CV, DPV, and SWV approaches as well as spectroelectrochem. methods. Aggregation, photostability, singlet oxygen production, and fluorescence quantum yields of the target complexes were studied as a function of the stepwise substitution of the aromatic C-H fragments by nitrogen atoms. The electronic structure and vertical excitation energies of the target compounds were probed by DFT-PCM and TDDFT-PCM approaches. Introduction of addnl. nitrogens into the structure leads to a hypsochromic shift of the Q-band and makes the macrocycle strongly electron deficient and more photostable. The impact on the photophysics is limited. The relations between the type of macrocycle and the studied properties were defined.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Synthesis of pyrido[1′,2′:1,2]imidazo[4,5-b]pyrazines from 2-amino-3-chloro-5,6-dicyanopyrazine with substituted pyridines.Synthetic Route of C6Cl2N4.

Novel synthesis of the title compounds by the cyclization between 2-amino-3-chloro-5,6-dicyanopyrazine (I) and various substituted pyridines is described. E.g., heating I with pyridines II (R = Me, Pr, Me3C, PhCH2, CONH2, CO2Me, Ph, 2-pyridyl) in DMF at 90° for 48 h gave 14-72% pyridoimidazopyrazines III.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Multivalent Allyl-Substituted Macrocycles as Nonaggregating Building Blocks. Author is Husain, Ali; Ganesan, Asaithampi; Ghazal, Basma; Makhseed, Saad.

Based on the concept of dual-directionality, the synthesis of two novel zinc(II)-containing phthalocyanine (Pc-ene1) and azaphthalocyanine (AzaPc-ene1) macrocycles bearing dual directional (up/down) allyl moieties on their rims is reported. Their structural identification, i.e., NMR, FT-IR, UV-vis, MALDI-TOF spectral data, single crystal x-ray diffraction, and CHN elemental analyses, along with their nonaggregating behaviors in solvated media and crystalline forms has been confirmed.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Preparation, Characterization, and FET Properties of Novel Dicyanopyrazinoquinoxaline Derivatives, published in 2004-06-10, which mentions a compound: 56413-95-7, mainly applied to cyanopyrazinoquinoxaline derivative preparation FET, Product Details of 56413-95-7.

A series of the title dicyanopyrazinoquinoxaline derivatives have been prepared and characterized by using single-crystal X-ray structure anal. and redox potential measurements. They have strong electron-accepting properties due to the pyrazinopyrazine skeletons as well as the cyano groups. Substituents can be easily introduced at the benzene ring and control the HOMO-LUMO energy gap and the mol. packing. They show clear n-type transistor properties in the FET devices.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile(SMILESS: N#CC1=NC(Cl)=C(Cl)N=C1C#N,cas:56413-95-7) is researched.Quality Control of cis-4-Aminocyclohexane carboxylic acid. The article 《Phthalocyanines and Tetrapyrazinoporphyrazines with Two Cationic Donuts: High Photodynamic Activity as a Result of Rigid Spatial Arrangement of Peripheral Substituents》 in relation to this compound, is published in Journal of Medicinal Chemistry. Let’s take a look at the latest research on this compound (cas:56413-95-7).

High photodynamic activity was observed for hexadeca-cationic zinc, magnesium, and metal-free phthalocyanines (Pcs) and tetrapyrazinoporphyrazines with EC50 values as low as 5 nM (MCF-7 cells) for the best compound; this activity was several times better than that of clin. established photosensitizers verteporfin, temoporfin, S3AlOHPc, or protoporphyrin IX. This lead compound was characterized by low dark toxicity (TC50 = 369 μM), high efficiency against other cell lines (HCT 116 and HeLa), and possible activation by light above 680 nm. The excellent photodynamic activity resulted from the rigid spatial arrangement of the quaternized triazole moieties above and below the Pc core, as confirmed by X-ray crystallog. The triazole moieties thus formed two “”cationic donuts”” that protected the hydrophobic core against aggregation in water. The lysosomes were found to be the site of subcellular localization and were consequently the primary targets of photodynamic injury, resulting in predominantly necrotic cell death.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Recommanded Product: 56413-95-7. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Tetrapyrazinoporphyrazine with eight peripheral adamantanylsulfanyl units – Synthesis and physicochemical study.

A novel, (1-adamantylsulfanyl)-octasubstituted tetrapyrazinoporphyrazine has been synthesized and analyzed for its key physicochem. properties. Also, two 1-adamantylsulfanyl-substituted pyrazine derivatives were compared, and their crystallog. structures as well as chem. reactivity were assessed and discussed. Porphyrazine macrocycle showed good fluorescence and singlet oxygen generation properties as well as photostability. In addition, studied adamantylsulfanyl porphyrazine, despite its hydrophobic nature, revealed good solubility in polar solvents. Electrochem. studies revealed that the macrocycle underwent oxidation by one one-electron process and reduction with two one-electron processes.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Name: 5,6-Dichloropyrazine-2,3-dicarbonitrile. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Syntheses of Octa(dialkylamino)azaphthalocyanines. Author is Morkved, Eva H.; Kjosen, Helge; Ossletten, Hege; Erchak, Nikolai.

Ni(II) octa(4-morpholinyl)- (11a) and Cu(II) octa(1-pyrrolidinyl)- (11b) azaphthalocyanines were prepared from the corresponding pyrazine diiminoimides (10). The precursor pyrazine dicarbonitriles (2) gave 6-cyanopyrazine-5-alkyl carboximidates (3-9) as stable intermediates when reacted with NH3 and catalytic amounts of Na alkoxide in alcs. 3-9 Were converted to the diiminoimides 10 upon reflux in PrOH or BuOH for several hours. This unusual reaction pattern was observed for pyrazine-2,3-dicarbonitriles (2) with morpholine, thiomorpholine, piperidine or pyrrolidine substituted in the 5- and 6-positions.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Category: chiral-oxygen-ligands. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Dually directional glycosylated phthalocyanines as extracellular red-emitting fluorescent probes. Author is Husain, Ali; Ganesan, Asaithampi; Machacek, Miloslav; Cerveny, Lukas; Kubat, Pavel; Ghazal, Basma; Zimcik, Petr; Makhseed, Saad.

The development of new non-aggregated phthalocyanines bearing multivalent saccharide moieties on their macrocyclic rims is of great interest. Many characteristics, including water-solubility, non-toxicity and others, can be feasibly obtained by these amphiphiles which can be considered as a key solution for demonstrating highly efficient photoactive materials in water. Herein, a family of five newly prepared dually directional Zn(II) containing phthalocyanines (PcG1-4) and azaphthalocyanine (AzaPcG1) glycoconjugates is described. The unique spatial arrangement of the glucoside units based on peripherally hexadeca-(PcG1) and nonperipherally octa-(PcG4) macrocycles provides a fully monomeric behavior along with a high fluorescence (ΦF ~0.21) in aqueous solution These amphiphiles were characterized by low toxicity, and an extremely low cellular uptake was obtained due to the highly polar nature of the glucoside substituents. Accordingly, their potential as suitable photoactive chromophores for red-emitting extracellular fluorescent probes has been confirmed upon the evaluation of paracellular transport using a layer of MDCKII cells with the permeability coefficient fully comparable with an established evaluator of the integrity of the monolayer.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Application of 56413-95-7. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Azaphthalocyanines: Red Fluorescent Probes for Cations. Author is Novakova, Veronika; Lochman, Lukas; Zajicova, Ivana; Kopecky, Kamil; Miletin, Miroslav; Lang, Kamil; Kirakci, Kaplan; Zimcik, Petr.

Chelation of sodium and potassium cations by aza[15]crown-5 switches on strong red fluorescence in azaphthalocyanines. This is due to an inhibition of ultrafast intramol. charge transfer by coordination of the cations to the donor center. Sodium cations fit well into a cavity of the recognition moiety, while potassium forms supramol. assemblies of azaphthalocyanines with 1:2 stoichiometry.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate