Month: April 2022

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Pyridine-3,5-dicarbonitrile(SMILESS: N#CC1=CC(C#N)=CN=C1,cas:1195-58-0) is researched.SDS of cas: 18362-64-6. The article 《Three novel zinc(II) metal-organic frameworks based on three tetrazolate ligands: synthesis, structures and photoluminescence》 in relation to this compound, is published in RSC Advances. Let’s take a look at the latest research on this compound (cas:1195-58-0).

Three metal-organic frameworks (MOFs), [Zn(BPT)H2O] (JUC-121), [Zn5(IBT)6]·8[H2NMe2]·DMA (JUC-122) and [Zn(TPD)(H2O)2]·0.5H2O (JUC-123) (JUC = Jilin University, China), H2BPT = (5-bromo-1,3-phenylene)bis(tetrazole), H3IBT = 4,5-bis(tetrazol-5-yl)imidazole and H2TPD = 3,5-di(tetrazol-5-yl)pyridine, were obtained by the reactions of Zn(NO3)2·6H2O and three tetrazolate ligands, which were characterized by single crystal x-ray diffraction, thermal gravimetric analyses (TGA), FTIR spectra (FTIR), elemental anal. (CHN) and powder X-ray diffraction (PXRD). From the crystal structures of these complexes and the coordination modes of the ligands, the authors can see that the tetrazolate ligands have multi-connectivity abilities to obtain intriguing varieties of mol. architectures. JUC-121 displays a three-dimensional (3D) network with the point symbol (4·65)2(42·84)(64·82). JUC-122 shows a two-dimensional (2D) framework with the point symbol (243)2(24)9 and JUC-123 has a 2-dimensional bimodal (3, 3)-connected net with the point symbol (4·82). The solid-state fluorescent spectra of JUC-121, JUC-122, JUC-123 and the free ligands were measured at room temperature

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Volke, J.; Skala, V. published an article about the compound: Pyridine-3,5-dicarbonitrile( cas:1195-58-0,SMILESS:N#CC1=CC(C#N)=CN=C1 ).COA of Formula: C7H3N3. 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:1195-58-0) through the article.

Electrochem. reduction of mono- and dicyanopyridines at a Hg electrode proceded via intermediates containing a cyclic π-electron septet formed after uptake of the 1st electron; these intermediates underwent either protonation, dimerization, or further 1-electron reduction, depending on the position of the cyano group(s), the acidity of the medium, and the electrode potential. This mechanism was substantiated by LCAO-MO and SCF calculations; the exptl. half-wave potentials were correlated to the energy of the lowest free MO of the substrate.

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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, European Journal of Organic Chemistry called Cobalt-Catalyzed C-N Bond-Forming Reaction between Chloronitrobenzenes and Secondary Amines, Author is Toma, Gabriel; Yamaguchi, Ryohei, which mentions a compound: 16588-26-4, SMILESS is BrC1=C(C=CC(=C1)[N+](=O)[O-])Cl, Molecular C6H3BrClNO2, Quality Control of 3-Bromo-4-chloronitrobenzene.

Cyclic secondary amines react with mono- or dichloronitrobenzenes in the presence of a catalytic amount of cobalt(II) chloride. Phosphane ligands are beneficial for the reaction, although the bite-angle effect was not strong. The resulting nitro-substituted tertiary amines are important as bioactive compounds and can also be intermediates for the synthesis of substituted anilines. This work represents the first cobalt-catalyzed approach to C-N bond-forming reactions involving aromatic chlorides and cyclic secondary amines. The reaction is ortho- and para-selective, with meta-substituted halides being unreactive in this procedure.

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Category: alcohols-buliding-blocks. 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: 3-Bromo-4-chloronitrobenzene, is researched, Molecular C6H3BrClNO2, CAS is 16588-26-4, about Efficient and recyclable bimetallic Co-Cu catalysts for selective hydrogenation of halogenated nitroarenes. Author is Sheng, Yao; Wu, Baoqin; Ren, Jiaan; Wang, Xueguang; Zou, Xiujing; Lu, Xionggang.

Silica supported N-doped carbon layers encapsulating Co-Cu nanoparticles (Co1Cux@CN/SiO2) were prepared by a one-step impregnation of Co(NO3)2·6H2O, Cu(NO3)2·3H2O, urea and glucose, following in situ carbothermal reduction Effects of Cu contents on the catalytic performance of the Co1Cux@CN/SiO2 catalysts were investigated for selective hydrogenation of p-chloronitrobenzene to p-chloroaniline. The Co1Cu0.30@CN/SiO2 with Cu/Co molar ratio of 0.30:1 presented much higher activity and stability than the monometallic Co@CN/SiO2 catalyst. The addition of Cu into Co1Cux@CN/SiO2 catalysts had favorable effects on the formation of highly active Co-N sites and N-doped carbon layer. The role of the N-doped carbon layer was to protect the Co from oxidation by air, and the Co1Cu0.30@CN/SiO2 could be reused for at least 12 cycles without decrease in catalytic efficiency. Mechanistic and in situ IR studies revealed that the interaction effect between the Co and Cu atoms made the surface of Co highly electron rich, which decreased adsorption of halogen groups and resulting in the enhanced selectivity during chemoselective hydrogenation of halogenated nitroarenes for a wide scope of substrates.

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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, Nippon Kagaku Zasshi called HMO [Hueckel molecular orbital] calculation and the reactivity of quinolinecarbonitriles and isoquinolinecarbonitriles with nucleophilic reagents, Author is Ide, Akio; Matsumori, Kunihiko; Ishizu, Kazuhiko; Watanabe, Hiroyasu, which mentions a compound: 1195-58-0, SMILESS is N#CC1=CC(C#N)=CN=C1, Molecular C7H3N3, SDS of cas: 1195-58-0.

Simple Hueckel MO calculations were carried out to explain the fact that the Grignard reagents attack the CN group of 2- and 4-quinolinecarbonitriles and 1- and 3-isoquinolinecarbonitriles, whereas the ring is attacked in the case of 3-quinolinecarbonitrile and 4-isoquinolinecarbonitrile. These facts could be explained by the reactivity indexes obtained with the following parameters: α + 0.5β for the Coulomg integral of N in the ring, α + 1.1β for the Coulomb integral of N of the cyano group, and 1.4β for resonance integral of the cyano group. The νCN absorption could be correlated with the π-bond order of the cyano group and the chem. shifts of H with the π-electron density (qr) by the equation: δ = 19.64 – 12.20qr. 1-Propionylisoquinoline, b5 125°, was prepared

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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: 12080-32-9, is researched, SMILESS is C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-], Molecular C8H12Cl2PtJournal, Journal of Coordination Chemistry called Synthesis, reactivity and transition metal complexes of 1,1′-bis(diethynylphosphino)ferrocene, Author is Sonawane, Sachin C.; Kunchur, Harish S.; Pandey, Sameer Prasad; Balakrishna, Maravanji S., the main research direction is ferrocenyl bisphosphine preparation oxidation reaction transition metal complex; diethynylphosphinoferrocene preparation crystal mol structure reactivity transition metal complex; crystal mol structure diethynylphosphinoferrocene sulfide platinum copper complex.Formula: C8H12Cl2Pt.

The synthesis, oxidation reactions and transition metal complexes of a new ferrocenyl-bisphosphine, [Fe{C5H4P(CH)2}2] (1), are described. The reaction of bis(dichlorophosphino)ferrocene with four equivalent of ethynylmagnesium bromide resulted in the formation of 1 in 76% yield. The reaction between 1, aqueous H2O2 or elemental sulfur produced bis(oxide) and bis(sulfide) derivatives, [Fe{C5H4P(E)(CCH)2}2] (2 E = O, 3 E = S). Reaction of with [Ru(η6-p-cymene)Cl2]2 yielded a diruthenium complex [Fe{C5H4P(CCH)2}2{RuCl2(η6-p-cymene)}2] (4). Treatment of 1 with [M(COD)Cl2] (M = Pd, Pt) resulted in [Fe{C5H4P(CCH)2}2{MCl2}] (5 M = Pd, 6 M = Pt). Equimolar reactions between 1 and CuX produced binuclear complexes, [Fe{C5H4P(CCH)2}2{CuX}2] (7 X = Cl, 8 X = Br, 9 X = I).

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Name: Pyridine-3,5-dicarbonitrile. 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: Pyridine-3,5-dicarbonitrile, is researched, Molecular C7H3N3, CAS is 1195-58-0, about Vapor-phase oxidation and oxidative ammonolysis of some alkylpyridines on a vanadium-iron catalyst. Author is Suvorov, B. V.; Belova, N. A.; Kan, I. I.; Rakhimova, M. A..

Optimum conditions were determined for gas-phase oxidation and oxidative ammonolysis for each of 4 alkylpyridines (2- and 3-picoline, 2-methyl-5-ethylpyridine, 3,5-lutidine) over the catalyst 2V2O5·Fe2O3 in the presence or absence of H2O. At best, overall selectivity for oxygen- and nitrogen-containing derivatives (e.g., cyanopyridines) of pyridine reached 80-90%.

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Suvorov, B. V.; Belova, N. A.; Stepanova, L. A. published an article about the compound: Pyridine-3,5-dicarbonitrile( cas:1195-58-0,SMILESS:N#CC1=CC(C#N)=CN=C1 ).Recommanded Product: Pyridine-3,5-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:1195-58-0) through the article.

Oxidative ammonolysis of alkylbenzenes and alkylpyridines (p-xylene, pseudocumene, 2-, 3-, and 4-picoline, 2,6- and 3,5-lutidine, 3-ethylpyridine, 2-methyl-5-ethylpyridine, and 2-methyl-5-vinylpyridine) on SnO2-modified Ti V oxide catalyst gave the corresponding nitriles in high yields. The catalyst is activated by water vapor.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-Bromo-4-chloronitrobenzene(SMILESS: BrC1=C(C=CC(=C1)[N+](=O)[O-])Cl,cas:16588-26-4) is researched.Name: Oxazole. The article 《Enzyme kinetics and substrate selectivities of rat glutathione S-transferase isoenzymes towards a series of new 2-substituted 1-chloro-4-nitrobenzenes》 in relation to this compound, is published in Xenobiotica. Let’s take a look at the latest research on this compound (cas:16588-26-4).

1. Four different rat glutathione S-transferase (GST) isoenzymes, belonging to three different classes, were examined for their GSH conjugating capacity towards 11 2-substituted 1-chloro-4-nitrobenzene derivatives Significant differences were found in their enzyme kinetic parameters Km, kcat and kcat/Km. 2. Substrates with bulky substituents on the ortho-position appeared to have high affinities (low Km’s) for the active site of the GST-isoenzymes, suggesting that there is sufficient space in this area of the active site. A remarkably high Km (low affinity) was found for 2-chloro-5-nitropyridine towards all GST-isoenzymes examined 3. GST 3-3 catalyzed the reaction between GSH and the substrates most efficiently (high kcat) compared with the other GST-isoenzymes. Moreover, GST 3-3 showed clear substrate selectivities towards the substrates with a trifluoromethyl- chlorine- and bromine-substituent. 1-Chloro-2,4-dinitrobenzene and 2-chloro-5-nitrobenzonitrile were most efficiently conjugated by all four GST-isoenzymes examined 4. When the rate of the conjugation reactions was followed, a linear increase of formation of GS-conjugate could be seen for 2-chloro-5-nitrobenzonitrile during a much longer period of time than for 1-chloro-2,4-dinitrobenzene with all GST-isoenzymes examined Therefore, it is suggested that 2-chloro-5-nitrobenzonitrile might be recommended as an alternative model substrate in GST-research.

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Sutton, Ryan B.; Henderson, William published an article about the compound: Dichloro(1,5-cyclooctadiene)platinum(II)( cas:12080-32-9,SMILESS:C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-] ).Related Products of 12080-32-9. 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:12080-32-9) through the article.

The synthesis of the platinum(II) μ2-sulfide complex [Pt2(μ2-S)2(PTA)4] (PTA = phosphatriazaadamantane), as a water-soluble analog of the known triphenylphosphine complex [Pt2(μ2-S)2(PPh3)4], was explored through a range of synthetic routes. A direct synthesis, from cis-[PtCl2(PTA)2] and Na2S·9H2O in benzene is the most effective, while attempted ligand substitution of the PPh3 ligands of [Pt2(μ2-S)2(PPh3)4] with PTA resulted in rearrangement of the {Pt2S2} core, and formation of a series of PTA-substituted trinuclear species of the general composition [Pt3(μ3-S)2(PPh3)x(PTA)6-x]2+. The fully-substituted complex [Pt3(μ3-S)2(PTA)6]2+ was also obtained when cis-[PtCl2(PTA)2] was reacted with a sulfide ion-exchange resin. Reaction of [PtCl2(cod)] (cod = 1,5-cyclooctadiene) with Na2S·9H2O in benzene gave a red solid identified as crude [Pt2(μ2-S)2(cod)2]. Reaction of this labile {Pt2S2} precursor with PTA gave [Pt2(μ2-S)2(PTA)4] along with PTA -oxide and -sulfide. ESI mass spectrometry was widely employed as a convenient tool for exploring this chem., in conjunction with 31P{1H} NMR spectroscopy. These PTA-Pt-sulfide species, especially those containing {Pt2S2} cores, have a tendency to decompose in solution Addnl. confirmation of the formation of [Pt2(μ2-S)2(PTA)4] was provided by its reaction with [Rh2(μ2-Cl)2(cod)2], giving the adduct [Pt2(μ3-S)2(PTA)4Rh(cod)]+, identified using ESI MS.

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