Tag: M.W=100-200

Gampe, Dominique Mario; Haensch, Veit Georg; Schramm, Stefan; Menzel, Roberto; Weiss, Dieter; Beckert, Rainer published an article about the compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile( cas:56413-95-7,SMILESS:N#CC1=NC(Cl)=C(Cl)N=C1C#N ).Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:56413-95-7) through the article.

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.

Compound(56413-95-7)Safety of 5,6-Dichloropyrazine-2,3-dicarbonitrile received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile), if you are interested, you can check out my other related 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: 3685-23-2, is researched, SMILESS is N[C@H]1CC[C@H](CC1)C(O)=O, Molecular C7H13NO2Journal, Article, Bioorganic & Medicinal Chemistry Letters called Conformationally restricted indolopiperidine derivatives as potent CCR2B receptor antagonists, Author is Witherington, J.; Bordas, V.; Cooper, D. G.; Forbes, I. T.; Gribble, A. D.; Ife, R. J.; Berkhout, T.; Gohil, J.; Groot, P. H. E., the main research direction is indolylazabicyclooctylmethylcyclohexyl dichlorocinnamamide preparation CCR2B receptor antagonist.HPLC of Formula: 3685-23-2.

The preparation and biol. evaluation of a series of indolopiperidine CCR2B receptor antagonists possessing a conformationally restricted C-5 linker chain in combination with a restricted piperidine ring are described. Compared to the parent compound, the analog I shows a dramatic improvement in selectivity against a range of 5-HT and dopaminergic receptors.

Compound(3685-23-2)HPLC of Formula: 3685-23-2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(cis-4-Aminocyclohexane carboxylic acid), if you are interested, you can check out my other related 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

Recommanded Product: 3685-23-2. 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: cis-4-Aminocyclohexane carboxylic acid, is researched, Molecular C7H13NO2, CAS is 3685-23-2, about Knoevenagel Reaction. Kinetic study of the reaction of (+)-3-methyl-cyclohexanone with malononitrile. Author is Prout, Franklin S.; Beaucaire, Victor D.; Dyrkacz, Gary R.; Koppes, William M.; Kuznicki, Robert E.; Marlewski, Theordore A.; Pienkowski, James J.; Puda, Jacqueline M..

The condensation of malononitrile with (+)-3-methylcyclohexanone produced an 80-85% yield of (-)-3-methylcyclohexylidenemalononitrile. The reaction, followed polarimetrically in aqueous alc., is kinetically second order and efficiently catalyzed by weak bases (ω-amino acids, cyclic amino acids, NH4OAc) furnishing solutions having an apparent pH 7.5-8.0. With β-alanine as catalyst, the Ea was 7.6 kcal/mole compared to 11 kcal/mole uncatalyzed. Stronger bases (Barbital, NaOAc, LOAc, KF, piperidine) effect more rapid condensation but poorer kinetics because of telomerization of malononitrile at the higher pHs.

Compound(3685-23-2)Recommanded Product: 3685-23-2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(cis-4-Aminocyclohexane carboxylic acid), if you are interested, you can check out my other related 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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: cis-4-Aminocyclohexane carboxylic acid(SMILESS: N[C@H]1CC[C@H](CC1)C(O)=O,cas:3685-23-2) is researched.Category: chiral-oxygen-ligands. The article 《Characterization of an inhibitory receptor in rat hippocampus. A microiontophoretic study using conformationally restricted amino acid analogs》 in relation to this compound, is published in British Journal of Pharmacology. Let’s take a look at the latest research on this compound (cas:3685-23-2).

The inhibitory potencies of GABA [56-12-2], β-alanine [107-95-9], and glycine [56-40-6] in rat hippocampal pyramidal cells were determined and compared with those of substituted aminocyclopentane and aminocyclohexane carboxylic acids (ACPC and ACHC resp.). The order of effectiveness of the small aliphatic amino acids was GABA > β-alanine > glycine. GABA-induced inhibition was inhibited by iontophoresis of bicuculline or picrotoxin but not strychnine-HCl. The inhibitory abilities of the substituted ACPC and ACHC derivatives was a direct function of the separation of NH2 and CO2H groups in both series of cyclic amino acids. The most potent inhibition was observed when the spatial separation was similar to that of the extended GABA mol. (4.74 Å). Inhibition by (±)-cis-3-aminocyclopentanecarboxylic acid was blocked by simultaneous application of bicuculline or picrotoxin, but not by strychnine-HCl. The physiol. active conformation of GABA is probably the fully extended mol. and one dimension of the postsynaptic receptor site is probably within the range 4.2-4.8 Å.

Compound(3685-23-2)Recommanded Product: 3685-23-2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(cis-4-Aminocyclohexane carboxylic acid), if you are interested, you can check out my other related 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

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.Application In Synthesis of 2-(Furan-2-yl)-2-oxoacetaldehyde. The article 《Solid-Phase Synthesis of Aza-phthalocyanine-Oligonucleotide Conjugates and Their Evaluation As New Dark Quenchers of Fluorescence》 in relation to this compound, is published in Bioconjugate Chemistry. Let’s take a look at the latest research on this compound (cas:56413-95-7).

Hydrophobic non-aggregating metal-free azaphthalocyanines (AzaPc) of the tetrapyrazinoporphyrazine type were synthesized, characterized, and used for oligonucleotide labeling. Both 3′-end and 5′-end labeling methods using solid phase synthesis suitable for automatic processes in the DNA/RNA synthesizer were developed. The hydrophobic character of AzaPc enabled the anchoring of the conjugates on reverse phase of the oligonucleotide purification cartridge, thus enabling their simple purification AzaPc did not show any fluorescence and extremely low singlet oxygen quantum yields (ΦΔ = 0.015-0.018 in DMF) in a monomeric state due to ultrafast intramol. charge transfer. That is why they were investigated as a new dark quencher structural type. They profit particularly from absorption in a wide range of wavelengths (300-740 nm) that covers all fluorophores used in hybridization assays nowadays. As an example, quenching efficiency was evaluated in a simple hybridization assay using monolabeled probes. AzaPc-based probes efficiently quenched both fluorescein and Cy5 fluorescence by both resonance energy transfer and contact quenching. The results were compared with three established dark quenchers, and the AzaPc exerted better (BHQ-1 and BHQ-2) or comparable (BBQ-650) quenching efficiencies for both fluorophores.

From this literature《Solid-Phase Synthesis of Aza-phthalocyanine-Oligonucleotide Conjugates and Their Evaluation As New Dark Quenchers of Fluorescence》,we know some information about this compound(56413-95-7)Product Details of 56413-95-7, but this is not all information, there are many literatures 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

Formula: C7H13NO2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: cis-4-Aminocyclohexane carboxylic acid, is researched, Molecular C7H13NO2, CAS is 3685-23-2, about Synthesis of di- and tripeptides containing 4-aminocyclohexanecarboxylic acid. Author is Chen, Wen-Yih; Olsen, Richard K..

Amino acid derivatives were coupled to cis- and trans-4-aminocyclohexanecarboxylic acid with diethylphosphoryl cyanide as coupling reagent. Treatment of trans-I (R = Me3CO2C, R1 = OH) with diethylphosphoryl cyanide, followed by condensation with L-valine Me ester gave trans I (R = Me3CO2C, R1 = Val-OMe) (II). Deprotection and coupling of II with N-tert-butoxycarbonyl-L-alanine gave trans-I (R = Me3CO2C-Ala-, R1 = Val-OMe). Similar transformations were effected with cis-I (R = Me3CO2C, R1 = OH). Other coupling procedures investigated were the carbodiimide, p-nitrophenyl active ester, and sym. anhydride methods, which were less satisfactory for coupling to cyclohexane amino acids.

Compound(3685-23-2)Formula: C7H13NO2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(cis-4-Aminocyclohexane carboxylic acid), if you are interested, you can check out my other related 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, Microchemical Journal called Analysis of metabolites and metabolic mechanism in Bt transgenic and non-transgenic maize, Author is Zhang, Liyuan; Yu, Runzhong; Yu, Yingbo, which mentions a compound: 3685-23-2, SMILESS is N[C@H]1CC[C@H](CC1)C(O)=O, Molecular C7H13NO2, Safety of cis-4-Aminocyclohexane carboxylic acid.

The gas chromatog.-mass spectrometry was used to isolate and identify metabolites of non-transgenic and Bacillus thuringiensis transgenic maize. The non-targeted metabolomics technique was used to anal. the metabolic pathway and mechanism of two kinds of maize. The methanol was used as extractant and the N,O-bis(trimethylsilyl) trifluoroacetamide was used as derivatization reagent. 38 kinds of metabolites were isolated and identified from non-transgenic maize, and 61 kinds of metabolites were isolated and identified in Bacillus thuringiensis transgenic maize. The specific metabolites between non-transgenic and Bacillus thuringiensis transgenic maize were analyzed. The metabolic pathway of specific metabolites was analyzed by KEGG annotation. The metabolic mechanism of non-transgenic maize and Bacillus thuringiensis transgenic maize was explored. The result indicated there were more metabolites involved in metabolic pathways in Bacillus thuringiensis transgenic maize than in non-transgenic maize, and tricarboxylic acid cycle and energy metabolism pathways of Bacillus thuringiensis transgenic maize are found to be higher than that of non-transgenic maize. The metabolic pathway of Bacillus thuringiensis transgenic maize conforms to the biol. activity law.

Compound(3685-23-2)Safety of cis-4-Aminocyclohexane carboxylic acid received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(cis-4-Aminocyclohexane carboxylic acid), if you are interested, you can check out my other related 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

Reference 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 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).

Compound(56413-95-7)Reference of 5,6-Dichloropyrazine-2,3-dicarbonitrile received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile), if you are interested, you can check out my other related 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

Quality Control of 5,6-Dichloropyrazine-2,3-dicarbonitrile. 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 Metal-Cation Recognition in Water by a Tetrapyrazinoporphyrazine-Based Tweezer Receptor.

A series of zinc azaphthalocyanines with two azacrowns in a rigid tweezer arrangement were prepared and the fluorescence sensing properties were studied. The size-driven recognition of alkali and alk. earth metal cations was significantly enhanced by the close cooperation of the two azacrown units, in which both donor nitrogen atoms need to be involved in analyte binding to switch the sensor on. The mono- or biphasic character of the binding isotherms, together with the binding stoichiometry and magnitude of association constants (KA), indicated specific complexation of particular analytes. Water solvation was shown to play an important role and resulted in a strong quenching of sensor fluorescence in the ON state. The lead compound was embedded into silica nanoparticles and advantageous sensing properties towards K+ were demonstrated in water (λF = 671 nm, apparent KA = 82 M-1, increase of 17×), even in the presence of (supra)physiol. concentrations of Na+ and Ca2+.

Compound(56413-95-7)Quality Control of 5,6-Dichloropyrazine-2,3-dicarbonitrile received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile), if you are interested, you can check out my other related 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

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.Name: 5,6-Dichloropyrazine-2,3-dicarbonitrile.Belo, D.; Santos, I. C.; Almeida, M. published the article 《5,6-Dicyano-2,3-dithiopyrazine (dcdmp) chemistry: synthesis and crystal structure of Au(III)(dcdmp)2 complexes and 2,3,7,8-tetracyano-1,4,6,9-tetraazathianthrene》 about this compound( cas:56413-95-7 ) in Polyhedron. Keywords: gold cyanodithiopyrazine cyanotetraazathianthrene complex preparation structure; crystal structure aurate cyanodithiopyrazine cyanotetraazathianthrene complex; electrochem redox aurate cyanodithiopyrazine cyanotetraazathianthrene complex. Let’s learn more about this compound (cas:56413-95-7).

As an effort to explore new complexes of the 2,3-dicyano-5,6-dimercaptopyrazine (dcdmp) ligand with different transition metals, different salts containing both the Au(dcdmp)2 – complex and the new species 2,3,7,8-tetracyano-1,4,6,9-tetraazathianthrene (tctata), were obtained and characterized. Bu4N[Au(dcdmp)2] crystallizes in monoclinic space group C2/c, Z = 8 with a 35.147(4), b 9.527(1), c 21.792(2) Å and β 109.626(8)°. Its crystal structure consist of almost regular columns of [Au(dcdmp)2]-, stacked along b, surrounded by Bu4N+ cations. Bu4N[AuBr2(tctata)] crystallizes in triclinic space group P1̅, Z = 2, with a 10.986(1), b 13.230(2), c 13.791(1) Å, α 79.150(9), β 69.663(6), γ 70.254(9)°. The crystal packing is made by zigzag chains of tctata separated by layers of cations, with AuBr2 anions located in alternated cavities between the tctata chains and the cation layers. At last, Bu4N[Au(dcdmp)2].(tctata) crystallizes in monoclinic space group P21/n, Z = 4, with a 10.693(2), b 40.308(7), c 10.870(1) Å, β 92.16(1)°. Its crystal structure can be seen has a mix of those of the two preceding compounds It consists of bidimensional layers composed of out of registry parallel zigzag chains of alternating tctata and [Au(dcdmp)2]- units. The adjacent layers are separated by layers of [Bu4N]+. In the last two compounds the tctata appears as a planar mol.

Compound(56413-95-7)Name: 5,6-Dichloropyrazine-2,3-dicarbonitrile received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(5,6-Dichloropyrazine-2,3-dicarbonitrile), if you are interested, you can check out my other related 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