Category: 56413-95-7

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 Synthesis and studies on photodynamic activity of new water-soluble azaphthalocyanines, published in 2003-02-20, which mentions a compound: 56413-95-7, mainly applied to photodynamic activity water soluble azaphthalocyanine derivative; photosensitized photooxidation phenylisobenzofurane azaphthalocyanine derivative singlet oxygen generation, Synthetic Route of C6Cl2N4.

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.

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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 preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile( cas:56413-95-7 ) is researched.Synthetic Route of C6Cl2N4.Hill, Jonathan P.; Subbaiyan, Navaneetha K.; D’Souza, Francis; Xie, Yongshu; Sahu, Satyajit; Sanchez-Ballester, Noelia M.; Richards, Gary J.; Mori, Toshiyuki; Ariga, Katsuhiko published the article 《Antioxidant-substituted tetrapyrazinoporphyrazine as a fluorescent sensor for basic anions》 about this compound( cas:56413-95-7 ) in Chemical Communications (Cambridge, United Kingdom). Keywords: antioxidant tetrapyrazinoporphyrazine fluorescent sensor anion. Let’s learn more about this compound (cas:56413-95-7).

Tetrapyrazinoporphyrazine substituted at its periphery with eight antioxidant 3,5-di-t-butyl-4-hydroxyphenyl groups behaves as a turn-on fluorescent sensor for fluoride anions. Conversely, the precursor antioxidant-substituted 1,2-phthalonitrile was found to act in turn-off mode suggesting that the origin of the phenomenon lies at the phenolate-substituted 1,4-pyrazinyl moiety.

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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 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 Mixing Chromophores: Donor-Acceptor Dyes with Low-Lying LUMOs and Narrow Band Gaps by Connecting 4-Alkoxythiazoles and Azaacenes. Author is Gampe, Dominique Mario; Haensch, Veit Georg; Schramm, Stefan; Menzel, Roberto; Weiss, Dieter; Beckert, Rainer.

The synthesis and characterization of novel donor-acceptor (D-A) type functional dyes is presented. The materials studied are based on the 4-alkoxythiazole structure containing one of three arylamine donor units and one of three acceptor building blocks. The nine dyes were characterized with respect to their photo- and electrochem. properties based on UV/Vis absorption and fluorescence emission spectroscopy, and cyclic voltammetry. D. functional theory calculations were carried out to support these studies. The building blocks used brought their characteristics into the final target structures: the reversible oxidation and electron-donating properties of diarylamines, the high fluorescence quantum yields of 4-alkoxythiazoles, and the low-lying LUMOs of tetraazaanthracenes. Furthermore, by introducing tetraazaanthracenes as the acceptor moiety, narrow band gaps of 1.1 and 0.7 eV were estimated electrochem.

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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

Jaung, Jae-Yun; Matsuoka, Masaru; Fukunishi, Koushi published the article 《Dicyanopyrazine studies. part IV: syntheses and solid state absorption spectra of new dicyanopyrazine dyes derived from dichlorodicyanopyrazine and Fischer’s type bases》. Keywords: dye dicyanopyrazine preparation spectra MO.They researched the compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile( cas:56413-95-7 ).Computed Properties of C6Cl2N4. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:56413-95-7) here.

2-Chloro-5,6-dicyano-3-[2-(1,3,3-trimethylindolinylidene)methyl]pyrazine showed large differences in λmax from solution to the solid state resulting from strong intermol. π-π interactions. Related derivatives were synthesized by the nucleophilic substitution of 2,3-dichloro-5,6-dicyanopyrazine with various Fischer’s base type enamines. Absorption spectra, fluorescent properties and other phys. properties were correlated with their chem. structures. The PPP MO and MOPAC approach to evaluate their absorption spectra correlate with their conformations were conducted. Good correlation between the calculated and the exptl. results were obtained. The substituent effects of dicyanopyrazines affecting their chem., electronic, and phys. properties were also studied.

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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.Synthetic Route of C6Cl2N4. The article 《The synthesis and cyclotetramerisation reactions of aryloxy-, arylalkyloxy-substituted pyrazine-2,3-dicarbonitriles and spectroelectrochemical properties of octakis(hexyloxy)-pyrazinoporphyrazine》 in relation to this compound, is published in Dyes and Pigments. Let’s take a look at the latest research on this compound (cas: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.

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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 A Multifunctional Reagent Designed for the Site-Selective Amination of Pyridines, the main research direction is Boc protected aminopyridine chemoselective regioselective preparation; pyridine tert butyl chloro dicyanopyrazinyl oxy carbamate amination.Computed Properties of C6Cl2N4.

The development of a multifunctional reagent for the direct conversion of pyridines to Boc-protected 2-aminopyridines such as I [R = H, 3-Br, 4-Ph, etc.] with exquisite site selectivity and chemoselectivity was reported. The novel reagent was prepared on 200g scale in a single step, reacted in title reaction under mild conditions without precautions toward air or moisture, and is tolerant of nearly all common functionality. Exptl. and in situ spectroscopic monitoring techniques provided detailed insights and unexpected findings for the unique reaction mechanism.

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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

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, Coloration Technology called Synthesis and solution studies on azaphthalocyanines with quaternary aminoethyl substituents, Author is Kobak, Rabia Z. Uslu; Gul, Ahmet, the main research direction is magnesium cobalt zinc substituted azaphthalocyanine preparation UV.Synthetic Route of C6Cl2N4.

A pyrazinedinitrile derivative carrying dimethylaminoethylsulfanyl groups at positions 5 and 6 was synthesized from 2-dimethylaminoethanethiol hydrochloride and 2,3-dicarbonitrile-5,6-dichloropyrazine. The dicarbonitrile gave magnesium azaphthalocyanine (MgAzaPc) when reacted with magnesium propoxide in propanol. The conversion of the MgAzaPc to a metal-free derivative was achieved by treatment with trifluoroacetic acid. Incorporation of transition metal ions into the inner core of azaphthalocyanine was accomplished by treatment of the metal-free derivative with metal acetates, i.e. Zn(OAc)2, Co(OAc)2. These azaphthalocyanines were converted into water-soluble quaternised products by reaction with Me iodide. Aggregation phenomena were followed for magnesium azaphthalocyanine with quaternisable dimethylamino substituents within a specific range of pH. The compounds were characterized by FTIR, 1H NMR, mass and UV-visible spectral data.

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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

COA of Formula: C6Cl2N4. 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 Electron-deficient acene-based liquid crystals: dialkoxydicyanopyrazinoquinoxalines. Author is Takeda, Takashi; Tsutsumi, Jun’ya; Hasegawa, Tatsuo; Noro, Shin-ichiro; Nakamura, Takayoshi; Akutagawa, Tomoyuki.

Three electron-accepting dialkoxydicyanopyrazinoquinoxaline derivatives showed properties of smectic (Sm) liquid crystals. Temperature-dependent X-ray diffraction studies were consistent with the formation of a bilayer structure through the π-overlap and interdigitation of alkoxy chains in the Sm liquid crystalline state. Intermol. dipole-dipole interactions between the cyano groups played an important role in stabilizing the bilayer structure and liquid crystalline properties. Elongation of the alkoxy chains from C6H13O- and/or C12H25O- to C18H37O- changed the mol. arrangement and the liquid crystal phase from SmA to SmC, suggesting the importance of the van-der-Waals interaction of CnH2n+1O- chains for stabilizing the liquid crystalline phase. A hole-mobility value of 5 × 10-3 cm2 V-1 s-1 was observed for the SmA phase of bis(dodecyloxy)pyrazino[2,3-b]quinoxaline-2,3-dicarbonitrile at 438 K based on transient photocurrent measurements. The synthesis of the target compounds was achieved by a reaction of 5,6-dichloro-2,3-pyrazinedicarbonitrile with 4,5-bis(hexyloxy)-1,2-benzenediamine, 4,5-bis(dodecyloxy)-1,2-benzenediamine, 4,5-bis(octadecyloxy)-1,2-benzenediamine. The title compounds thus formed included bis(alkoxy)pyrazino[2,3-b]quinoxaline-2,3-dicarbonitrile derivatives (electron-deficient acene derivatives, heterocyclic anthracene analogs).

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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 Bulky 2,6-diphenylphenylsulfanyl substituents efficiently inhibit aggregation in phthalocyanines and tetrapyrazinoporphyrazines and control their photophysical and electrochemical properties, published in 2017-01-31, which mentions a compound: 56413-95-7, mainly applied to magnesium zinc sulfanyl phthalocyanine tetrapyrazinoporphyrazine complex preparation redox potential; fluorescence magnesium zinc sulfanyl phthalocyanine tetrapyrazinoporphyrazine complex, COA of Formula: C6Cl2N4.

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.

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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

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 Dually directional glycosylated phthalocyanines as extracellular red-emitting fluorescent probes, the main research direction is glycosylated phthalocyanine extracellular red emitting fluorescent probe.Formula: C6Cl2N4.

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