Category: 112-63-0

Stoermer, R. published the artcile< Esterifications by ultraviolet light>, Electric Literature of 112-63-0, the main research area is .

Believing that cis-trans-dicarboxylic acids of cyclic saturated hydrocarbons might undergo a rearrangement similar to that of stable unsaturated acids into their labile forms, trans-hexahydro-p-phthalic acid was exposed 10 days in MeOH to an uviol lamp; there was no rearrangement, however, and only 10% of the trans-monomethyl ester, needles, m. 125°, was no obtained; after 14 days’ illumination, 10% of the di-Me ester, m. 71°, is obtained. Similarly, trans-pentamethylene-1,2-dicarboxylic acid after 10 days gives the trans-monomethyl ester, needles, m. 45°; after 30 days, about 10% each of the mono-Me and dimethyl ester, oil of disagreeable odor. BzOH after 8 days gives about 30% BzOMe; if a trace of HCl is added, the yield of ester is increased to about 56%. PhCH:CHCO2H is not perceptibly esterified in pure MeOH, but if a very small amount of HCl is added 4 g. acid after 8 days yields 2.5 g. of a mixture of stable and allo-acids and 1.5 g. of practically pure stable ester.

Berichte der Deutschen Chemischen Gesellschaft published new progress about Esterification. 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

Sui, Zongming; Huang, Jianguo; Yuan, Ling published the artcile< Ceriporia lacerata HG2011 enhances P mobilization and wheat agronomic performance irrespective of P fertilization levels>, COA of Formula: C19H34O2, the main research area is Ceriporia lacerate phosphorus fertilization wheat agronomic level; colonization; fertilization; nutrient uptake; phosphate-mobilizing micro-organism; soil phosphorus.

To identify soil phosphorus (P) mobilization and wheat agronomic performance in response to the P mobilizer Ceriporia lacerata HG2011 could provide a new strategy for improving fertilizer P efficiency in wheat cultivation. Liquid culture showed that C. lacerata HG2011 converted Ca3(PO4)2, FePO4, AlPO4, phytate, lecithin and RNA into soluble inorganic P, which was stimulated by ammonium and urea but less influenced by P supply. In the incubation experiment, this fungus colonized on wheat roots, and mobilized P in the soils regardless of Olsen P levels. The efflux of protons, organic acids and phosphatase could be involved in insoluble P mobilization. In the greenhouse pot experiment, C. lacerata HG2011 increased soil Olsen P under different P fertilization levels, improved wheat P uptake by 15.39%-28.70%, P fertilizer use efficiency by 4.26%-13.04% and grain yield by 12.24%-22.39%. Ceriporia lacerata HG2011 was able to colonize on wheat roots, mobilize P in soils and improve wheat agronomic performance irresp. of P fertilization levels. Ceriporia lacerata HG2011 could be used to enhance the quality of compost or as a bio-fertilizer for P mobilization in modern sustainable agriculture.

Journal of Applied Microbiology published new progress about Bacterial fertilizers Role: AGR (Agricultural Use), BIOL (Biological Study), USES (Uses). 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

Gharieb, Shimaa Abdallah; Dorgham, Yousra; Abdelgawad, Mohamed; Abdelhai, Shaimaa Farouk published the artcile< Survival of glioblastoma multiforme patients treated with hypofractionated radiotherapy with integrated boost plus temozolomide>, SDS of cas: 112-63-0, the main research area is anticancer temozolomide radiotherapy prognosis glioblastoma.

Despite recent advances in multimodal treatments, the glioblastoma multiforme (GBM) prognosis remains poor. Hypofractionated radiotherapy regimens have been increasingly adopted for treatment of glioblastoma. To assess the survival rate when using hypofractionated radiotherapy with simultaneous integrated boost concurrently with temozolomide in treatment of GBM. The prospective study was conducted to forty-eight GBM patients referred to the Clin. Oncol. & Nuclear Medicine Department, Zagazig University Hospitals, from August 2019 to August 2021. The patients weres divided in two arms, Arm A include 24 patients treated prospectively by Hypofractionated radiotherapy with simultaneous integrated boost at a dose 50 Gy in 16 fractions, 3.12 Gy per fraction to high-risk planning target volume (PTV) and 40 Gy in 16 fractions, 2.5 Gy per fraction to low-risk PTV concurrently with TMZ and compared with Arm B that include 24 patients treated prospectively by conventional radiotherapy at a dose 60Gy / 30 fractions (phase I 46 Gy / 23 fractions and phase II 14 Gy / 7 fractions) concurrently with TMZ. Main outcome measures: Hypofractionated radiotherapy with integrated boost outcomes. For group A, 6 mo OS (78.4%) and 12 mo OS (43.6%), group B, 6 mo OS (75%) and 12 mo OS (52.5%). For group A the 6 mo PFS rate was (59.2%) while 12 mo PFS rate was (43.1%).For group B the 6 mo PFS rate was (50.5%) while 12 mo PFS rate was (39.8%) with no statistically significant difference between both groups. Hypofractionated radiotherapy shows promising comparable survival outcomes to conventional radiotherapy.

Latin American Journal of Pharmacy published new progress about Antitumor agents. 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

Sen, Arko; Prager, Briana C.; Zhong, Cuiqing; Park, Donglim; Zhu, Zhe; Gimple, Ryan C.; Wu, Qiulian; Bernatchez, Jean A.; Beck, Sungjun; Clark, Alex E.; Siqueira-Neto, Jair L.; Rich, Jeremy N.; McVicker, Graham published the artcile< Leveraging allele-specific expression for therapeutic response gene discovery in glioblastoma>, Related Products of 112-63-0, the main research area is temozolomide olaparib anticancer agent prognosis Zika virus glioblastoma adult.

Glioblastoma is the most prevalent primary malignant brain tumor in adults and is characterized by poor prognosis and universal tumor recurrence. Effective glioblastoma treatments are lacking, in part due to somatic mutations and epigenetic reprogramming that alter gene expression and confer drug resistance. To investigate recurrently dysregulated genes in glioblastoma, we interrogated allele-specific expression (ASE), the difference in expression between two alleles of a gene, in glioblastoma stem cells (GSC) derived from 43 patients. A total of 118 genes were found with recurrent ASE preferentially in GSCs compared with normal tissues. These genes were enriched for apoptotic regulators, including schlafen family member 11 (SLFN11). Loss of SLFN11 gene expression was associated with aberrant promoter methylation and conferred resistance to chemotherapy and PARP inhibition. Conversely, low SLFN11 expression rendered GSCs susceptible to the oncolytic flavivirus Zika. This discovery effort based upon ASE revealed novel points of vulnerability in GSCs, suggesting a potential alternative treatment strategy for chemotherapy-resistant glioblastoma.

Cancer Research published new progress about Adult, mammalian. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.

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

Hiscock, Jennifer R.; Gale, Philip A.; Lalaoui, Noemie; Light, Mark E.; Wells, Neil J. published the artcile< Benzimidazole-based anion receptors exhibiting selectivity for lactate over pyruvate>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is benzimidazole based anion receptor selectivity lactate pyruvate crystallog.

The influence of anions on tautomerism in benzimidazole containing anion receptors has been studied via a variety of techniques in both solution and the solid state. The results show that hydrogen bonding interactions between the receptors and guests have a significant effect of the nature of the tautomer present. The compounds show a preference for complexation of lactate over pyruvate.

Organic & Biomolecular Chemistry published new progress about Anions. 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

Gilmour, Sandra; Marder, Seth R.; Tiemann, Bruce G.; Cheng, Lap Tak published the artcile< Synthesis and second-order nonlinear optical properties of various acceptor-substituted biologically derived chromophores>, HPLC of Formula: 112-63-0, the main research area is nonlinear optical property apocarotenal.

The title study of β-apo-8′-carotenal compounds is reported. Elec.-field-induced second harmonic generation measurements give values of β(0) 2-6 times greater than for 4-(dimethylamino)-4′-nitrostilbene.

Proceedings of SPIE-The International Society for Optical Engineering published new progress about Dipole moment. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

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

Wang, Bin; Ma, Jiawei; Ren, Hongyuan; Lu, Shuo; Xu, Jingkai; Liang, Yong; Lu, Changsheng; Yan, Hong published the artcile< Chemo-, site-selective reduction of nitroarenes under blue-light, catalyst-free conditions>, HPLC of Formula: 112-63-0, the main research area is aryl amine preparation chemoselective green chem; nitroarene photoinduced double hydrogen atom transfer deoxygenative transborylation reduction.

The tandem reaction of photoinduced double hydrogen-atom transfer and deoxygenative transborylation for chemo- and site-selective reduction of nitroarenes into aryl amines under catalyst-free, room temperature conditions was disclosed in excellent yields. In this reaction, isopropanol (iPrOH) was used as hydrogen donor and tetrahydroxydiboron [B2(OH)4] as deoxygenative reagent with green, cheap, and com. available credentials. In particular, a wide range of reducible functional groups such as halogen (-Cl, -Br and even -I), alkenyl, alkynyl, aldehyde, ketone, carboxyl, and cyano are all tolerated. Moreover, the reaction preferentially reduces the nitro group at the electron-deficient site over another nitro group in the same mol. A detailed mechanistic investigation in combination of experiments and theor. calculations gave a reasonable explanation for the reaction pathway.

Chinese Chemical Letters published new progress about Aromatic amines Role: SPN (Synthetic Preparation), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

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

Hao, Lin; Chuen, Chan Wei; Ganguly, Rakesh; Chi, Yonggui Robin published the artcile< NHC-catalyzed ester activation: access to sterically congested spirocyclic oxindoles via reaction of α-aryl esters and unsaturated imines>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is spirocyclic oxindole preparation; aryl ester imine heterocyclic carbene.

Carboxylic esters can be readily obtained at low cost. Therefore, asym. catalytic activation of esters should provide useful strategies for organic synthesis. Here we report a N-heterocyclic carbene (NHC)-mediated reaction of α-aryl acetic esters with oxindole-derived α,β-unsaturated imines. The reaction involves the formation of NHC-bound ester enolate intermediate from an ester as a key step, and furnishes spirocyclic oxindole products. The sterically congested spirocyclic oxindole e. g., I, bears a newly formed six-membered δ-lactams and cannot be easily prepared using other methods.

Synlett published new progress about Aromatic esters Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Adauto, Anais; Khan, Sabir; Augusto da Silva, Matheus; Gomes Neto, Jose Anchieta; Picasso, Gino; Sotomayor, Maria del Pilar Taboada published the artcile< Synthesis, characterization and application of a novel ion hybrid imprinted polymer to adsorb Cd(II) in different samples>, SDS of cas: 112-63-0, the main research area is ion imprinted polymer cadmium adsorption kinetics river water; Atomic absorption spectroscopy; Cadmium (II) adsorption; Hybrid materials; Ion imprinted polymer; Polymers.

Two new ionic imprinted hybrid polymers (IIHP) and their corresponding non imprinted hybrid polymers (NIHP) were synthesized. The prepared IIHP was highly selective to Cd2+. To prepare the IIHP, 1-vinylimidazole (VIN) was used as the functional monomer, (3-mercaptopropyl) trimethoxysilane (MP) or (3-aminopropyl) trimethoxysilane (AMP) was used as the functional organosilane, trimethylolpropane (TRIM) was used as the crosslinking agent, AIBN was used as a radical initiator and TEOS was used as a functional precursor. The functional monomer was selected considering calculations based on the d. functional theory (DFT). The fabricated materials were characterized via field emission gun SEM (FEG-SEM), Fourier transform IR spectroscopy (FTIR), energy dispersive X-ray spectroscopy (EDX) and thermogravimetric anal. (TGA). The maximum adsorption capacity of Cd2+ was achieved at a pH of 7.2 in the tris-HCl medium. The adsorption test indicated that the reaction followed pseudo second order kinetics, and the equilibrium sorption data fitted well into the Langmuir isotherm model. The relative selectivity coefficients of polymers IIHP-VIN-AMP and IIHP-VIN-MP, as evaluated in binary mixtures of Cd2+ and interferent cations (Pb2+, Zn2+, Hg2+, Cu2+, Ni2+, Ca2+, Mg2+, and Na+) at different molar ratios, were greater than one due to the presence of specific recognition sites for Cd2+ ions. Moreover, the selective materials exhibited a high reusability and reproducibility in the context of Cd2+ adsorption. These adsorbent materials, specifically IIHP-VIN-MP, exhibited a % removal efficiency of more than 90% for the Cd2+ in river water samples.

Environmental Research published new progress about Adsorbents. 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

Kothe, Vinicius; Melfi, Diego Trevisan; dos Santos, Kallynca Carvalho; Corazza, Marcos Lucio; Ramos, Luiz Pereira published the artcile< Thermodynamic analysis, experimental and kinetic modeling of levulinic acid esterification with ethanol at supercritical conditions>, Quality Control of 112-63-0, the main research area is levulinic acid esterification ethanol thermodn kinetic model.

Et levulinate is an environmentally friendly biomass-derived ester that is an alternative to the classic petroleum-derived fuel additives. Several studies have been addressed to its chem. production pathways. The supercritical esterification of levulinic acid to Et levulinate, however, remains understudied. This work reports the effect of process variables and a kinetic study for the esterification of levulinic acid with ethanol under sub and supercritical conditions. Exptl. data were obtained in a continuous tubular reactor at a fixed pressure of 100 bar. The reaction temperature varied from 220 to 280 °C, and the ethanol to levulinic acid molar ratios from (2:1) to (9:1). Et levulinate was synthesized with high selectivity under all evaluated reaction conditions, achieving conversions up to 80% and 93% when ethanol to levulinic acid molar ratios of (2:1) and (9:1) were used, resp. A PFR model approach was considered with an elementary reversible self-catalyzed rate law, and the effect of considering the mixture d. behavior through the reactor using the PC-SAFT equation of state was discussed. The proposed kinetic approach was able to correlate the kinetic exptl. data for all exptl. conditions used in this study. Furthermore, a thermodn. anal. was performed to elucidate trends in reaction performance.

Fuel published new progress about Density. 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