Category: 56413-95-7

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Synthesis and spectral properties of tetrapyrazinoporphyrazinato metal complexes derived from a sterically hindered phenol, the main research direction is azaphthalocyanine cobalt zinc complex preparation; self association cobalt zinc azaphthalocyanine complex.Computed Properties of C6Cl2N4.

The synthesis of metal-containing tetrapyrazinoporphyrazines (azaphthalocyanines) bearing eight bulky substituents at the peripheral positions is described. The key precursor was prepared using a nucleophilic aromatic substitution reaction between a sterically hindered phenol and 5,6-dichloropyrazine-2,3-dicarbonitrile. Thus, azaphthalocyanine (AzaPc) derived from 2,6-isopropyl-4-nitrophenol possesses substituents that are forced by steric constraints to adopt a non-planar conformation which drastically enhances the solubility of the macrocycles and inhibits efficient cofacial interaction of the macrocycles even in the solid state as evaluated by UV-visible and 1H NMR spectroscopic techniques. The intense absorption in the red visible region and photostability of these highly soluble and non-aggregated complexes enhance the dynamic activity and make these complexes potentially suitable for PDT.

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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: 5,6-Dichloropyrazine-2,3-dicarbonitrile. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Dicyanopyrazine-derived push-pull chromophores for highly efficient photoredox catalysis. Author is Zhao, Yu; Zhang, Chenhao; Chin, Kek Foo; Pytela, Oldrich; Wei, Guo; Liu, Hongjun; Bures, Filip; Jiang, Zhiyong.

Here, we report dicyanopyrazine (DPZ)-derived push-pull chromophores, easily prepared and tunable organic compounds, as new kinds of photoredox catalysts. In particular, the DPZ derivative H, containing 2-methoxythienyl as electron-donating moiety, exhibits a broad absorption of visible light with an absorption edge up to 500 nm and excellent redox properties, and has been demonstrated as a desirably active and efficient photoredox catalyst in four challenging kinds of photoredox reactions. The amount of catalyst in most reactions is less than 0.1 mol% and even 0.01 mol%, representing the lowest catalyst loading in the current photoredox organocatalysis.

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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 chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Functional dyes derived from 2,3-dichloro-5,6-dicyanopyrazine, the main research direction is cyanopyrazine dye synthesis nucleophilic substitution; amine nucleophilic substitution dichlorodicyanopyrazine.Category: chiral-oxygen-ligands.

Chlorine nucleophilic substitution of 2,3-dichloro-5,6-dicyanopyrazine (I) with amines yielded 8 mono- or disubstituted derivatives that were tested for their second harmonic generation (SHG) and biol. activity. Triethylamine reaction with I gave a new enamine product that was characterized by NMR and IR spectroscopy. Effectiveness in controlling some plant diseases was observed

Here is a brief introduction to this compound(56413-95-7)Category: chiral-oxygen-ligands, if you want to know about other compounds related to this compound(56413-95-7), you can read my other articles.

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.Zimcik, Petr; Miletin, Miroslav; Ponec, Jan; Kostka, Miroslav; Fiedler, Zdenek researched the compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile( cas:56413-95-7 ).Application In Synthesis of 5,6-Dichloropyrazine-2,3-dicarbonitrile.They published the article 《Synthesis and studies on photodynamic activity of new water-soluble azaphthalocyanines》 about this compound( cas:56413-95-7 ) in Journal of Photochemistry and Photobiology, A: Chemistry. Keywords: photodynamic activity water soluble azaphthalocyanine derivative; photosensitized photooxidation phenylisobenzofurane azaphthalocyanine derivative singlet oxygen generation. We’ll tell you more about this compound (cas:56413-95-7).

Aza analogs of phthalocyanines (AzaPc’s) bearing four long chains with carboxy groups at the end and four “”bulky”” diethylamino groups on periphery were synthesized and characterized. Their sodium salts are very soluble in water. The first studies on photodynamic activity of this tetrapyrazinoporphyrazines (a type of AzaPc) are presented. The dye-sensitized photooxidation of 1,3-diphenylisobenzofurane via 1O2 was studied in pyridine. Their photodynamic activity in vitro was not detected due to the aggregation behavior of these compounds in water.

Here is a brief introduction to this compound(56413-95-7)Application In Synthesis of 5,6-Dichloropyrazine-2,3-dicarbonitrile, if you want to know about other compounds related to this compound(56413-95-7), you can read my other articles.

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 compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about New highly soluble phenoxy-substituted phthalocyanine and azaphthalocyanine derivatives: Synthesis, photochemical and photophysical studies and atypical aggregation behavior. Author is Makhseed, Saad; Tuhl, Ahmad; Samuel, Jacob; Zimcik, Petr; Al-Awadi, Nouria; Novakova, Veronika.

Zn phthalocyanines and corresponding aza-analog azaphthalocyanines substituted with peripheral 2,6-diisopropylphenoxy substituents containing different functional groups (Br, OCH3, and OH) were synthesized and their photophys. properties were studied. UV-visible and 1H NMR analyses confirmed the nonaggregation behavior of the prepared complexes in most organic solvents. All studied compounds showed good photophys. and photochem. properties in THF and DMF with ΦF values at 0.22-0.44 and ΦΔ values ranging between 0.42 and 0.57. Hydroxylated compounds showed good solubility in polar solvents including EtOH, MeOH, acetone and even in aqueous EtOH mixtures Absorption spectra in aqueous EtOH indicated presence of only monomers even at very low EtOH content in H2O (0.5% of EtOH in H2O). Despite this, no fluorescence occurred from ∼50% of EtOH in H2O suggesting presence of aggregates that do not differ from monomers in a shape of absorption spectra.

Here is a brief introduction to this compound(56413-95-7)Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile, if you want to know about other compounds related to this compound(56413-95-7), you can read my other articles.

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

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, ChemistrySelect called Structure-Catalytic Activity in a Series of Push-Pull Dicyanopyrazine/Dicyanoimidazole Photoredox Catalysts, Author is Hlouskova, Zuzana; Tydlitat, Jiri; Kong, Manman; Pytela, Oldrich; Mikysek, Tomas; Klikar, Milan; Almonasy, Numan; Dvorak, Miroslav; Jiang, Zhiyong; Ruzicka, Ales; Bures, Filip, which mentions a compound: 56413-95-7, SMILESS is N#CC1=NC(Cl)=C(Cl)N=C1C#N, Molecular C6Cl2N4, COA of Formula: C6Cl2N4.

A series of dicyanopyrazine and dicyanoimidazole derived push-pull mols. have been prepared and further investigated as photoredox catalysts. The fundamental properties of the catalysts were studied by DSC, X-ray anal., absorption/emission spectra, and electrochem. and were completed with the DFT results. The catalytic activity has been evaluated in visible light induced α-functionalization of amines (cross-dehydrogenative coupling and annulation reaction of tetrahydroisoquinolines). Thorough structure-property-catalytic activity relationships were elucidated. The developed series of tailored organic photoredox catalysts allows synthetic chemists to perform desired reactions under sustainable and mild conditions employing solely visible light as a source of energy.

Here is a brief introduction to this compound(56413-95-7)COA of Formula: C6Cl2N4, if you want to know about other compounds related to this compound(56413-95-7), you can read my other articles.

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

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 56413-95-7, is researched, SMILESS is N#CC1=NC(Cl)=C(Cl)N=C1C#N, Molecular C6Cl2N4Journal, Dyes and Pigments called The synthesis and cyclotetramerisation reactions of aryloxy-, arylalkyloxy-substituted pyrazine-2,3-dicarbonitriles and spectroelectrochemical properties of octakis(hexyloxy)-pyrazinoporphyrazine, Author is Uslu Kobak, Rabia Zeynep; Oeztuerk, Egemen Selcuk; Koca, Atif; Guel, Ahmet, the main research direction is arylalkyloxy substituted pyrazine dicarbonitrile dye synthesis cyclotetramerization.Product Details of 56413-95-7.

Novel, aryloxy- and arylalkyloxy-substituted pyrazine dicarbonitriles were synthesized from 5,6-dichloropyrazine-2,3-dicarbonitrile and the corresponding phenol/alc. derivatives Cyclotetramerisation of these pyrazine derivatives to form metal pyrazinoporphyrazines in the presence of appropriate metal salts in different solvents such as DMF, quinoline, 2-dimethylaminoethanol and n-hexanol, resulted in decomposition products with the exception of the latter solvent which lead to mainly octakis(alkyloxy)pyrazinoporphyrazines. Cyclic voltammetry and differential pulsed voltammetry of the complexes indicated that cobalt pyrazinoporphyrazine displayed both ligand and metal-based redox processes while zinc and copper derivatives exhibited only ligand-based redox processes. The redox processes of the pyrazinoporphyrazines shifted significantly towards pos. potentials compared to those of the common phthalocyanines. The novel compounds were characterized using elemental anal. and spectral techniques.

Here is a brief introduction to this compound(56413-95-7)Product Details of 56413-95-7, if you want to know about other compounds related to this compound(56413-95-7), you can read my other articles.

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. 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 Synthesis of mono-, di-, tri- and tetracarboxy azaphthalocyanines as potential dark quenchers. Author is Kopecky, Kamil; Satinsky, Dalibor; Novakova, Veronika; Miletin, Miroslav; Svoboda, Antonin; Zimcik, Petr.

Mono-, di-, tri- and tetracarboxy-substituted metal-free azaphthalocyanines (AzaPc) were synthesized from 5,6-bis(diethylamino)pyrazine-2,3-dicarbonitrile and 6-(5,6-dicyano-3-(diethylamino)pyrazin-2-ylamino)hexanoic acid using a statistical condensation approach. AzaPc bearing eight diethylamino peripheral substituents was also isolated from the mixture Anal. of the distribution of congeners in the statistical mixture using optimized HPLC method (Phenomenex Synergy RP Fusion column, acetonitrile/tetrahydrofuran/water (pH 5.5) 50:20:30) was performed. The anal. showed optimal ratios of starting materials to be 3:1 for AAAB, 1:3 for ABBB and 1:1 for AABB/ABAB types of the congeners. The distribution of the congeners corresponded well with calculated values indicating similar reactivity of both starting materials and no steric constraint between adjacent isoindole units in the AzaPc ring. All studied AzaPc showed no fluorescence, extremely low singlet oxygen quantum yields (Φ Δ < 0.005) in monomeric form and strong absorption in a wide range from 300 nm to almost 700 nm. Such properties are highly promising for future study of these compounds as dark quenchers of fluorescence in DNA hybridization probes. If you want to learn more about this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile)Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(56413-95-7).

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. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Red-Emitting Fluorescence Sensors for Metal Cations: The Role of Counteranions and Sensing of SCN- in Biological Materials. Author is Lochman, Lukas; Machacek, Miloslav; Miletin, Miroslav; Uhlirova, Stepanka; Lang, Kamil; Kirakci, Kaplan; Zimcik, Petr; Novakova, Veronika.

The spatiotemporal sensing of specific cationic and anionic species is crucial for understanding the processes occurring in living systems. Herein, the authors developed new fluorescence sensors derived from tetrapyrazinoporphyrazines (TPyzPzs) with a recognition moiety that consists of an aza-crown and supporting substituents. Their sensitivity and selectivity were compared by fluorescence titration experiments with the properties of known TPyzPzs (with either one aza-crown moiety or two of these moieties in a tweezer arrangement). Method of standard addition was employed for analyte quantification in saliva. For K+ recognition, the new derivatives had comparable or larger association constants with larger fluorescence enhancement factors compared to that with one aza-crown. Their fluorescence quantum yields in the ON state were 18× higher than that of TPyzPzs with a tweezer arrangement. Importantly, the sensitivity toward cations was strongly dependent on counteranions and increased as follows: NO3- < Br- < CF3SO3- < ClO4- ≪ SCN-. This trend resembles the chaotropic ability expressed by the Hofmeister series. The high selectivity toward KSCN was explained by synergic association of both K+ and SCN- with TPyzPz sensors. The sensing of SCN- was further exploited in a proof of concept study to quantify SCN- levels in the saliva of a smoker and to demonstrate the sensing ability of TPyzPzs under in vitro conditions. If you want to learn more about this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile)Recommanded Product: 56413-95-7, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(56413-95-7).

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

Related Products of 56413-95-7. 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 Bulky 2,6-diphenylphenylsulfanyl substituents efficiently inhibit aggregation in phthalocyanines and tetrapyrazinoporphyrazines and control their photophysical and electrochemical properties. Author is Zimcik, Petr; Malkova, Anna; Hruba, Lenka; Miletin, Miroslav; Novakova, Veronika.

Octasubstituted zinc, metal-free and magnesium complexes of phthalocyanine and tetrapyrazinoporphyrazine bearing very bulky 2,6-diphenylphenylsulfanyl substituents were synthesized. The substituents efficiently inhibited aggregation of the dyes and only monomers were detected even at a concentration of 200 μM solution in toluene. Photophys. data indicated influence of the heavy-atom effect – magnesium complexes were more fluorescent (ΦF 0.40-0.51) and zinc complexes produced stronger the singlet oxygen (ΦΔ 0.56-0.72) in both series of compounds The presence of addnl. nitrogens in tetrapyrazinoporphyrazine core made it substantially more electron deficient when compared with corresponding phthalocyanine analogs. 2,6-Diphenylphenylsulfanyl substituents also increased electron deficient character of the core and influenced the photophys. properties.

If you want to learn more about this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile)Related Products of 56413-95-7, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(56413-95-7).

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