Category: 4553-62-2

Gavagan, John E.; Fager, Susan K.; Fallon, Robert D.; Folsom, Patrick W.; Herkes, Frank E.; Eisenberg, Amy; Hann, Eugenia C.; DiCosimo, Robert published an article about the compound: 2-Methylglutaronitrile( cas:4553-62-2,SMILESS:N#CC(C)CCC#N ).HPLC of Formula: 4553-62-2. 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:4553-62-2) through the article.

Five- and six-membered ring lactams have been prepared by first converting an aliphatic α,ω-dinitrile to an ω-cyano carboxylic acid ammonium salt, using a microbial cell catalyst having an aliphatic nitrilase activity (Acidovorax facilis 72W, ATCC 55746) or a combination of nitrile hydratase and amidase activities (Comamonas testosteroni 5-MGAM-4D, ATCC 55744). The ω-cyano carboxylic acid ammonium salt was then directly converted to the lactam by hydrogenation in aqueous solution, without isolation of the intermediate ω-cyano carboxylic acid or ω-amino carboxylic acid. Only one of two possible lactam products was produced from α-alkyl-substituted α,ω-dinitriles, where the nitrilase of A. facilis 72W regioselectively hydrolyzed only the ω-cyano group to produce a single cyano carboxylic acid ammonium salt in greater than 98% yield.

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Phadke, Satyajit; Cao, Mingli; Anouti, Meriem published the article 《Approaches to Electrolyte Solvent Selection for Poly-Anthraquinone Sulfide Organic Electrode Material》. Keywords: polyanthraquinone sulfide organic electrode material electrolyte solvent selection; Hansen parameters; organic batteries; organic electrode; polyanthraquinone; solubility.They researched the compound: 2-Methylglutaronitrile( cas:4553-62-2 ).COA of Formula: C6H8N2. 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:4553-62-2) here.

Organic materials such as polyanthraquinone sulfide (PAQS) are receiving increased attention as electrodes for energy storage systems owing to their good environmental compatibility, high rate capability, and large charge-storage capacity. However, one of their limitations is the solubility in organic solvents typically composing the electrolytes. Here, the solubility of PAQS was tested in 17 different solvents using UV/Vis spectroscopy. The results show that PAQS exhibits a very wide range of solubility according to the nature of the solvent and the obtained trend agrees well with the predictions from Hansen solubility anal. Furthermore, the transport properties (conductivity, σ, and viscosity, η) of selected electrolytes composed of non-solubilising solvents with 1 M LiTFSI are compared and discussed in the temperature range from -40 °C to 80 °C. In the second part of this study, the electrochem. characterization of PAQS as electrode material in selected pure or mixture of solvents with 1 M LiTFSI as salt was made in half-cells by a galvanostatic method. In a methylglutaronitrile (2MeGLN)-based electrolyte that exhibits low solubility of PAQS, it appears that the capacity fade is intricately linked to the large irreversibility of the second step of the redox process. Although the standard cyclic carbonate solvents mixture (ethylene carbonate and propylene carbonate) led to rapid capacity fade in the initial 10-15 cycles owing to their high solubilising ability. Finally, it is shown that a pure linear alkylcarbonate (di-Me carbonate) or binary mixture of ether-based (dioxolane/dimethoxy ethane) electrolyte is much more compatible for enhanced capacity retention in PAQS with more than 120 mAh g-1 for 1000 cycles at 4 C.

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Name: 2-Methylglutaronitrile. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about Synthesis of β-picoline from 2-methylglutaronitrile over supported noble metal catalysts. I. Catalyst activity and selectivity. Author is Lanini, S.; Prins, R..

Silica-supported palladium, rhodium and platinum were active catalysts in the production of β-picoline by the vapor phase hydrogenation of a tech. mixture of 2-methylglutaronitrile and 2-ethylsuccinonitrile, whereas Ni/SiO2 and Ru/SiO2 showed no appreciable activity. On the fresh Pd, Rh and Pt catalysts, β-picoline was obtained in a good yield and the complete conversions pointed to extremely high reaction rates. Accordingly, transport limitations due to film and pore diffusion were observed Activity and selectivity of the catalysts decreased with time on stream, while catalyst stability decreased in the order Pt > Pd > Rh. A large number of byproducts was formed, mainly from hydrogenolysis or intermol. imine-amine condensation. Pt catalysts displayed the highest hydrogenolysis activity, Pd catalysts tended to condensations, while the behavior of Rh-containing catalysts was in between those of Pd and Pt catalysts. Stability and selectivity were influenced by the nature of the substrate, metal dispersion, basicity of the support and average metal ensemble size. The presence of 2-ethylsuccinonitrile in the feed led to the formation of pyrroles and polymers, but was not responsible for the observed deactivation, which was due to coke deposits formed by highly reactive intermediates.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Conformation of biaryls. Dipole moment measurements of o-methylbiphenyls》. Authors are Sato, Takeo.The article about the compound:2-Methylglutaronitrilecas:4553-62-2,SMILESS:N#CC(C)CCC#N).Application In Synthesis of 2-Methylglutaronitrile. Through the article, more information about this compound (cas:4553-62-2) is conveyed.

cf. CA 54, 19584a. 5,5′-Dinitro- (I), 5,5′-dichloro-2,2′-dimethylbiphenyl (II), and 2-methyl-3′,5-dinitrobiphenyl (III) were prepared, their dipole moments measured and the interplanar angles calculated The results for I and II showed the rings to be nearly perpendicular to each other, whereas III showed a slight trans arrangement with inclined C6H6 rings at an angle of 76°. 2-Iodo-4-nitrotoluene (100 g.) and 150 g. dry sand heated to 215° 100 g. activated Cu-bronze (IV) added over 1 hr. with good stirring at 215-20°, heated and kept 1.5 hrs. at 250°, the mixture poured into dry sand and extracted with EtOH gave a low yield of I, yellow needles, m. 177-8° (HOAc or Me2CO). 4-Chloro-2-iodotoluene (16 g.) heated at 240-50°, 20 g. IV added over 1 hr., the mixture heated and kept 40 min. at 280-90°, extracted with Me2CO and distilled gave II, b4 140-55°, n20 1.5961. IV (15 g.) added with stirring over 30 min. to a mixture of 4 g. 2-iodo-4-nitrotoluene and 75 g. m-nitroiodobenzene at 220-30°, heated and kept 30 min. at 240-50°, extracted with Me2CO and the solvent evaporated gave III, yellow plates, m. 145-6° (EtOH).

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Microbial degradation of nitrile compounds. Part IV. Fungal degradation of triacrylonitrile, published in 1981-01-31, which mentions a compound: 4553-62-2, Name is 2-Methylglutaronitrile, Molecular C6H8N2, Application In Synthesis of 2-Methylglutaronitrile.

Two fungal strains (TG-1 and TG-2) which utilized triacrylonitrile (I) as N source were isolated from soil and identified as Fusarium merismoides merismoides and F. solani solani, resp. F. merismoides TG-1 could utilize I, adiponitrile, glutaronitrile, diacrylonitrile, and 2,4-dicyano-1-butene as N sources. Conditions for cultivation of the strain were studied. Degradation products of I were a mixture of 5,7-dicyanoheptanoic acid (62%) and 4,7-dicyanoheptanoic acid (II) (38%). A mixture of 5,7-dicyanoheptanoic acid (11%) and II (89%) was also obtained from the culture broth of F. solani TG-2.

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Reference of 2-Methylglutaronitrile. 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: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about Inhalation toxicity of methylglutaronitrile in rats.

Methylglutaronitrile (MGN) is a high-boiling (263°) solvent/intermediate used in the fiber industry. Twenty male rats per group were exposed nose-only to condensation aerosol/vapor concentrations of approx. either 5, 25, or 200 mg/m3 MGN for 6 h/day, 5 days/wk over a 4-wk period. Ten rats/group were sacrificed 1 day after the final exposure and the remaining rats after a 4-wk recovery period. No effects were observed in clin. observations during the exposure period, but body-weight depression was observed in the 200-mg/m3 group. The 200-mg/m3 group showed minimal decreases in red blood cell count, Hb, and hematocrit values accompanied by increases in reticulocytes. There were no other effects observed in clin. or pathol. evaluations in the study. A neurobehavioral battery of tests (including grip strength, functional observational battery, and motor activity tests) given at the end of the exposure and recovery periods showed no MGN effects. During the 4-wk recovery, body weights in the 200-mg/m3 group returned to normal and the hematol. findings in all the groups were normal. Based on the above findings of body weight depression at 200 mg/m3, the no-observed-adverse-effect level (NOAEL) for this study was considered to be 25 mg/m3.

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Reference of 2-Methylglutaronitrile. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about Deactivation during the hydrogenation of 2-methylglutaronitrile to β-picoline. Author is Lanini, S.; Prins, R..

A strong correlation between conversion and product selectivity was found for the production of β-picoline from 2-methylglutaronitrile in a single-stage process. The conversion had to be maintained at a very high level in order to keep the intermediates concentration low, thus preventing the formation of coke precursors by condensation reactions. The intermediates concentration on the metal surface was strongly influenced by the reaction temperature and the partial pressures. Above 598 K, the selectivity for condensation products decreased sharply, but also the overall conversion decreased. This neg. effect could be compensated by an increased hydrogen partial pressure.

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Formula: C6H8N2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about New solvent for aromatics separation. Author is Feldman, Julian.

1,3-Dicyanobutane (derived from acrylonitrile) has a higher capacity for light aromatic hydrocarbons in liquid-liquid extraction than does sulfolane. As a solvent in extractive distillation its low volatility, high thermal stability, low f.p. and high selectivity are useful. Equilibrium data and multistage extractions of a typical light catalytic reformate are reported. A light counter-solvent is effective, especially when followed by extractive distillation A combination of methods gives high purity aromatics or improved octane gasoline. A flow diagram is given for continuous cyclic operation to sep. reformate and recover the solvent.

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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.Chandrasekaran, M.; Krishnan, V. researched the compound: 2-Methylglutaronitrile( cas:4553-62-2 ).Recommanded Product: 4553-62-2.They published the article 《Electrochemical reduction of 2-methylglutaronitrile on deposited electrodes in aqueous media》 about this compound( cas:4553-62-2 ) in Bulletin of Electrochemistry. Keywords: electrochem reduction methylglutaronitrile; methyldiaminopentane. We’ll tell you more about this compound (cas:4553-62-2).

H2N(CH2)3CHMeCH2NH2 was obtained in 40-60% yield by the electrochem. reduction of NCCH2CH2CHMeCN using deposited nickel black and palladium black cathodes under different conditions. Various synthetic parameters were standardized. The results obtained from various reduction experiments are discussed.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2-Methylglutaronitrile( cas:4553-62-2 ) is researched.Related Products of 4553-62-2.Gavagan, John E.; Fager, Susan K.; Fallon, Robert D.; Folsom, Patrick W.; Herkes, Frank E.; Eisenberg, Amy; Hann, Eugenia C.; DiCosimo, Robert published the article 《Chemoenzymic Production of Lactams from Aliphatic α,ω-Dinitriles》 about this compound( cas:4553-62-2 ) in Journal of Organic Chemistry. Keywords: dinitrile enzymic hydrolysis lactamization; cyano carboxylic acid enzymic preparation lactamization; lactam enzymic preparation dinitrile. Let’s learn more about this compound (cas:4553-62-2).

Five- and six-membered ring lactams have been prepared by first converting an aliphatic α,ω-dinitrile to an ω-cyano carboxylic acid ammonium salt, using a microbial cell catalyst having an aliphatic nitrilase activity (Acidovorax facilis 72W, ATCC 55746) or a combination of nitrile hydratase and amidase activities (Comamonas testosteroni 5-MGAM-4D, ATCC 55744). The ω-cyano carboxylic acid ammonium salt was then directly converted to the lactam by hydrogenation in aqueous solution, without isolation of the intermediate ω-cyano carboxylic acid or ω-amino carboxylic acid. Only one of two possible lactam products was produced from α-alkyl-substituted α,ω-dinitriles, where the nitrilase of A. facilis 72W regioselectively hydrolyzed only the ω-cyano group to produce a single cyano carboxylic acid ammonium salt in greater than 98% yield.

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