Month: November 2022

Wrobel, Piotr; Kubisiak, Piotr; Eilmes, Andrzej published the artcile< NaFSI and NaTFSI Solutions in Ether Solvents from Monoglyme to Poly(ethylene oxide)-A Molecular Dynamics Study>, Quality Control of 112-63-0, the main research area is NaFSI NaTFSI solution monoglyme polyethylene oxide MD simulation.

Classical mol. dynamics simulations have been performed for a series of electrolytes based on sodium bis(fluorosulfonyl)imide or sodium bis(trifluoromethylsulfonyl)imide salts and monoglyme, tetraglyme, and poly(ethylene oxide) as solvents. Structural properties have been assessed through the anal. of coordination numbers and binding patterns. Residence times for Na-O interactions have been used to investigate the stability of solvation shells. Diffusion coefficients of ions and elec. conductivity of the electrolytes have been estimated from mol. dynamics trajectories. Contributions to the total conductivity have been analyzed in order to investigate the role of ion-ion correlations. It has been found that the anion-cation interactions are more probable in the systems with NaTFSI salts. Accordingly, the degree of correlations between ion motions is larger in NaTFSI-based electrolytes.

Journal of Physical Chemistry B published new progress about Autocorrelation function (Na-O, Na-anion residence time). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Stemmler, Tobias; Westerhaus, Felix A.; Surkus, Annette-Enrica; Pohl, Marga-Martina; Junge, Kathrin; Beller, Matthias published the artcile< General and selective reductive amination of carbonyl compounds using a core-shell structured Co3O4/NGr@C catalyst>, SDS of cas: 112-63-0, the main research area is cobalt oxide nanocomposite nitrogen enriched graphene reductive amination catalyst; nitroarene reductive amination carbonyl compound cobalt catalyst.

The application of heterogenized non-noble metal-based catalysts in selective catalytic hydrogenation processes is still challenging. In this respect, the preparation of a well-defined cobalt-based catalyst was investigated by immobilization of the corresponding cobalt(II)-phenanthroline chelate on Vulcan XC72R carbon powder. The formed core-shell structured cobalt/cobalt oxide nanocomposites are encapsulated by nitrogen-enriched graphene layers. This promising cheap heterogeneous catalyst allows for an efficient domino reductive amination of carbonyl compounds with nitroarenes.

Green Chemistry published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, SDS of cas: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kim, In-Hae; Park, Yong-Kyu; Hammock, Bruce D.; Nishi, Kosuke published the artcile< Structure-Activity Relationships of Cycloalkylamide Derivatives as Inhibitors of the Soluble Epoxide Hydrolase>, Application In Synthesis of 112-63-0, the main research area is preparation cycloalkylamide derivative inhibitor epoxide hydrolase.

Structure-activity relationships of cycloalkylamide compounds as inhibitors of human sEH were investigated. When the left side of amide function was modified by a variety of cycloalkanes, at least a C6 like cyclohexane was necessary to yield reasonable inhibition potency on the target enzyme. In compounds with a smaller cycloalkane or with a polar group on the left side of amide function, no inhibition was observed Increased hydrophobicity dramatically improved inhibition potency. Especially, a tetrahydronaphthalene (20) effectively increased the potency. When a series of alkyl or aryl derivatives of cycloalkylamide were investigated to continuously optimize the right side of the amide pharmacophore, a benzyl moiety functionalized with a polar group produced highly potent inhibition. A nonsubstituted benzyl, alkyl, aryl, or biaryl structure present on the right side of the cycloalkylamide function induced a big decrease in inhibition potency. Also, the resulting potent cycloalkylamide (32) showed reasonable phys. properties.

Journal of Medicinal Chemistry published new progress about Drug bioavailability. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application In Synthesis of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Stremming, Jane; Chang, Eileen I.; Knaub, Leslie A.; Armstrong, Michael L.; Baker, Peter R. II; Wesolowski, Stephanie R.; Reisdorph, Nichole; Reusch, Jane E. B.; Brown, Laura D. published the artcile< Lower citrate synthase activity, mitochondrial complex expression, and fewer oxidative myofibers characterize skeletal muscle from growth-restricted fetal sheep>, Application of C19H34O2, the main research area is citrate synthase mitochondrial complex oxidative myofiber skeletal muscle fetus; fetal growth restriction; fetal programming; fiber type; mitochondria; nucleotides.

Skeletal muscle from the late gestation sheep fetus with intrauterine growth restriction (IUGR) has evidence of reduced oxidative metabolism Using a sheep model of placental insufficiency and IUGR, we tested the hypothesis that by late gestation, IUGR fetal skeletal muscle has reduced capacity for oxidative phosphorylation because of intrinsic deficits in mitochondrial respiration. We measured mitochondrial respiration in permeabilized muscle fibers from biceps femoris (BF) and soleus (SOL) from control and IUGR fetal sheep. Using muscles including BF, SOL, tibialis anterior (TA), and flexor digitorum superficialis (FDS), we measured citrate synthase (CS) activity, mitochondrial complex subunit abundance, fiber type distribution, and gene expression of regulators of mitochondrial biosynthesis. Ex vivo mitochondrial respiration was similar in control and IUGR muscle. However, CS activity was lower in IUGR BF and TA, indicating lower mitochondrial content, and protein expression of individual mitochondrial complex subunits was lower in IUGR TA and BF in a muscle-specific pattern. IUGR TA, BF, and FDS also had lower expression of type I oxidative fibers. Fiber-type shifts that support glycolytic instead of oxidative metabolism may be advantageous for the IUGR fetus in a hypoxic and nutrient-deficient environment, whereas these adaptions may be maladaptive in postnatal life.

American Journal of Physiology published new progress about Animal gene Role: BSU (Biological Study, Unclassified), BIOL (Biological Study) (ATF2). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Rickborn, Bruce; Wuesthoff, Michael T. published the artcile< Kinetics, stereochemistry, and mechanism of the sodium borohydride reduction of alkyl-substituted cyclohexanones>, Electric Literature of 112-63-0, the main research area is kinetics reduction cyclohexanones; cyclohexanones reduction kinetics; stereochem reduction cyclohexanones.

The previously used method for determining the kinetics of NaBH4 reduction of cyclohexanones was inadequate, giving rise to small errors leading to measurably low rate constants A AgNO3-ethylenediamine potentiometric method gave correct values as shown by correspondence with the rate constants determined directly by vpc anal. Changes in stereochemistry during the course of reduction were observed with some substituted cyclohexanones, implying a significant buildup of an intermediate borohydride species. The rate constants and stereochem. results are discussed in terms of steric, electronic, and conformational effects.

Journal of the American Chemical Society published new progress about Reduction. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Distefano, Miriam; Steingass, Christof B.; Leonardi, Cherubino; Giuffrida, Francesco; Schweiggert, Ralf; Mauro, Rosario P. published the artcile< Effects of a plant-derived biostimulant application on quality and functional traits of greenhouse cherry tomato cultivars>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is greenhouse cherry tomato biostimulant application quality; Carotenoids; Fruit quality; Plant-derived biostimulant; Tocochromanols; Tomato.

A greenhouse experiment was conducted to study the effects of the application of a plant-derived biostimulant (Bioup TF) on fruit quality and composition of two clusters (cluster II and cluster VI) of the cherry tomato cultivars ‘Eletta’, ‘Kaucana’, and ‘Top Stellina’. The biostimulant application promoted fruit yield by 12% (up to 1.3 kg m-2 in ‘Kaucana’) and increased the concentrations of important functional constituents like phytoene, γ-tocopherol and β-tocopherol by up to 16, 25, and 23%, resp. Fruits from late-ripe cluster VI showed higher fruit weights, D-fructose, and total sugar contents than those from early-ripe cluster II (by 15, 7 and 5%, resp.), but reduced concentrations of acyclic carotenoids (phytoene and lycopene) and tocochromanols (mainly γ-tocopherol, -44%). ‘Top Stellina’ showed the highest responsiveness to the biostimulant, as particularly (all-E)-β-carotene, phytofluene, and γ-tocopherol concentrations increased, indicating a genotype-dependent effect of the treatment. However, fruits of all treated genotypes showed a contextual decrease in D-fructose and total sugars in response to the biostimulant (on average by 7 and 10%, resp.), indicating a metabolic load burdening the accumulation of lipophilic antioxidants in cherry tomatoes at the expense of their taste-related C pool.

Food Research International published new progress about Antioxidants. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Campagnaro, Gustavo D.; Elati, Hamza A. A.; Balaska, Sofia; Martin Abril, Maria Esther; Natto, Manal J.; Hulpia, Fabian; Lee, Kelly; Sheiner, Lilach; Van Calenbergh, Serge; de Koning, Harry P. published the artcile< A Toxoplasma gondii Oxopurine Transporter Binds Nucleobases and Nucleosides Using Different Binding Modes>, COA of Formula: C19H34O2, the main research area is Toxoplasma gondii oxopurine transporter nucleobase nucleoside binding mode; Tg244440; Toxoplasma gondii; apicomplexan; nucleobase transporter; purine transporter; substrate binding.

Toxoplasma gondii is unable to synthesize purines de novo, instead salvages them from its environment, inside the host cell, for which they need high affinity carriers. Here, we report the expression of a T. gondii Equilibrative Nucleoside Transporter, Tg244440, in a Trypanosoma brucei strain from which nucleobase transporters have been deleted. Tg244440 transported hypoxanthine and guanine with similar affinity (Km ∼1 μM), while inosine and guanosine displayed Ki values of 4.05 and 3.30 μM, resp. Low affinity was observed for adenosine, adenine, and pyrimidines, classifying Tg244440 as a high affinity oxopurine transporter. Purine analogs were used to probe the substrate-transporter binding interactions, culminating in quant. models showing different binding modes for oxopurine bases, oxopurine nucleosides, and adenosine. Hypoxanthine and guanine interacted through protonated N1 and N9, and through unprotonated N3 and N7 of the purine ring, whereas inosine and guanosine mostly employed the ribose hydroxy groups for binding, in addition to N1H of the nucleobase. Conversely, the ribose moiety of adenosine barely made any contribution to binding. Tg244440 is the first gene identified to encode a high affinity oxopurine transporter in T. gondii and, to the best of our knowledge, the first purine transporter to employ different binding modes for nucleosides and nucleobases.

International Journal of Molecular Sciences published new progress about Affinity. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Santaniello, Enzo; Ferraboschi, Patrizia; Grisenti, Paride; Aragozzini, Fabrizio; Maconi, Elisabetta published the artcile< A biocatalytic approach to the enantioselective synthesis of (R)- and (S)-malic acid>, Application In Synthesis of 617-55-0, the main research area is malate stereoisomer; malic acid stereoisomer; oxalacetate stereoselective enzymic reduction yeast; microbial reduction stereoselective oxalacetate; resolution enzymic malate esterase; chymotrypsin enzymic resolution malate.

(S)-EtO2CCH(OH)CH2CO2Et [(S)-I] was prepared (70-80% yield; >98% optical purity) by an enantioselective reduction of EtO2CC(ONa):CHCO2Et (II) by fermenting baker’s yeast. Other microorganisms were tested, most of them afforded 8-94% enantiomeric excess (S)-I. (R)-MeO2CCH(OH)CH2CO2Me [(R)-III] was obtained from racemic III by hydrolysis with pig liver esterase, the highest enantiomeric excess (93%) being realized at 0° in 20% aqueous MeOH. Enzymic hydrolyses of protected malates did not lead to improvement of the enantiomer excess.

Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about Enzymic reduction, stereoselective. 617-55-0 belongs to class esters-buliding-blocks, and the molecular formula is C6H10O5, Application In Synthesis of 617-55-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Jozwiak, Malgorzata; Komudzinska, Marlena; Tyczynska, Magdalena; Marczak, Wojciech; Jozwiak, Andrzej published the artcile< Heat capacity of six glymes in N,N-dimethylformamide + water mixtures. Solvation of glymes>, SDS of cas: 112-63-0, the main research area is glymes DMF water mixture solvation heat capacity.

The paper presents the heat capacities of glyme solutions: monoglyme, diglyme, triglyme, tetraglyme, pentaglyme and hexaglyme, in binary solvents N,N-dimethylformamide + water at four temperatures (293.15 K, 298.15 K, 303.15 K, 308.15 K) obtained using differential calorimeter Micro DSC III, Setaram – France. The concentration of glymes was approx. 0.25 mol/kg. On the basis of the obtained exptl. results, the apparent isobaric heat capacities of the glymes were calculated It was noted that the larger the glyme mol. was, the more pronounced the increase in the value of the apparent molar heat capacity function with the increase in water content in the two-component solvent. The observed changes in apparent isobaric heat capacity as a function of the water content in the mixed solvent are discussed in terms of the hydrophobic nature of the glymes. Moreover, it was shown that the apparent molar isobaric heat capacity of the glymes in pure solvents, i.e. in water and in N,N-dimethylformamide, increases linearly with the increase in the number of oxygen atoms in the glyme mols. i.e. with the size of glyme mols. Furthermore, a linear correlation was observed between the apparent isobaric molar heat capacity and the enthalpic effect of the hydrophobic hydration of the studied glymes at 298.15 K. The results obtained in this paper are compare with the same obtained for selected cyclic ethers.

Journal of Molecular Liquids published new progress about Correlation energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, SDS of cas: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ward, Lucy C.; McCue, Hannah V.; Rigden, Daniel J.; Kershaw, Neil M.; Ashbrook, Chloe; Hatton, Harry; Goulding, Ellie; Johnson, James R.; Carnell, Andrew J. published the artcile< Carboxyl Methyltransferase Catalysed Formation of Mono- and Dimethyl Esters under Aqueous Conditions: Application in Cascade Biocatalysis>, Product Details of C19H34O2, the main research area is Aspergillus carboxyl methyltransferase biocatalysis monomethyl dimethyl esters; Biocatalysis; Carboxylic Acids; Cascades; Enzymes; Methyltransferase.

Carboxyl methyltransferase (CMT) enzymes catalyze the biomethylation of carboxylic acids under aqueous conditions and have potential for use in synthetic enzyme cascades. Herein we report that the enzyme FtpM from Aspergillus fumigatus can methylate a broad range of aromatic mono- and dicarboxylic acids in good to excellent conversions. The enzyme shows high regioselectivity on its natural substrate fumaryl-L-tyrosine, trans, trans-muconic acid and a number of the dicarboxylic acids tested. Dicarboxylic acids are generally better substrates than monocarboxylic acids, although some substituents are able to compensate for the absence of a second acid group. For dicarboxylic acids, the second methylation shows strong pH dependency with an optimum at pH 5.5-6. Potential for application in industrial biotechnol. was demonstrated in a cascade for the production of a bioplastics precursor (FDME) from bioderived 5-hydroxymethylfurfural (HMF).

Angewandte Chemie, International Edition published new progress about Aspergillus fumigatus. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics