Category: 112-63-0

Swiderska, Aleksandra; Parzuchowski, Pawel G.; Zurowski, Radoslaw; Wieclaw-Midor, Anna; Wolosz, Dominik published the artcile< Energy dissipating poly(hydroxyurethane) elastomers - Synthesis, characterization and comparison with shear thickening fluid materials>, COA of Formula: C19H34O2, the main research area is polyhydroxyurethane elastomer shear thickening fluid.

In this article we report preparation and characterization of cross-linked non-isocyanate poly(hydroxyurethane) polymeric materials showing energy-dissipating properties. The materials were obtained by the ring-opening polyaddition reaction of hyperbranched multi(cyclic carbonate) (HBPG2) with various diamines. The hyperbranched multi(cyclic carbonate) was obtained in two step procedure including anionic polymerization of glycidol with trimethylolpropane (TMP) as a core yielding polyglycerol (HBPG1) and reaction of terminal vicinal hydroxyl groups of HBPG1 with di-Me carbonate in the presence of potassium carbonate. HBPG1 and HBPG2 were characterized using various NMR techniques, FTIR and MALDI-ToF mass spectroscopy. Thermal and mech. properties of elastomers, including dissipated energy capacity have been studied. Anal. of force absorbing efficiency test results showed that synthesized elastomers have the capability to dissipate about 60% of the energy. The energy dissipating properties of obtained poly(hydroxyurethane) elastomers were similar to those of shear thickening fluid materials that are currently used in human body protectors, in vibration damping devices or sound insulations. The article proves that it is possible to obtain advanced engineering materials using environmentally friendly materials.

Polymer published new progress about Anionic polymerization. 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

Li, Zheng; Tian, Zhongliang; Zhang, Chengzhi; Wang, Fei; Ye, Chong; Han, Fei; Tan, Jun; Liu, Jinshui published the artcile< An AlCl3 coordinating interlayer spacing in microcrystalline graphite facilitates ultra-stable and high-performance sodium storage>, Computed Properties of 112-63-0, the main research area is aluminum chloride microcrystalline graphite facilitate performance sodium storage.

Metal chloride-intercalated graphite intercalation compounds (MC-GICs) show a perfect sandwich structure with high electronic conductivity and chem. stability, but there are few applications for MC-GICs in anode materials of sodium ion batteries (SIBs). Herein, we selected a splendid host microcrystalline graphite (MG) to synthesize an AlCl3 intercalated MG intercalation compound (AlCl3-MGIC) anode material and demonstrated that it is suitable for SIBs via electrolyte optimization. The AlCl3-MGIC electrode is primarily compared in four electrolytes. Sodium storage is proposed for co-intercalation and conversion reactions by simultaneously selecting a compatible NaPF6/diethylene glycol di-Me ether (DEGDME) electrolyte. As a result, the AlCl3-MGIC anode delivers a specific capacity of 202 mA h g-1 at a c.d. of 0.2 A g-1 after 100 cycles and still exhibits a satisfactory capacity of 198 mA h g-1 after 900 cycles. D. functional theory calculations further illustrate that DEGDME solvent mols. offer moderate adsorption energy to sodium ions that guarantees structure stabilization of GICs during repeated cycling. This work provides a theor. basis for designing sodium ion storage with a graphite layered structure and unveiling the prospects of MC-GIC materials as high-performance anodes.

Nanoscale published new progress about Adsorption energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

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

Ma, Yangmin; Lei, Rui; Yang, Xiufang; Yang, Fangzhou published the artcile< Eco-friendly Waterborne Alkyd Resin from Polyethylene Terephthalate Waste>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is waterborne alkyd resin polyethylene terephthalate waste recycling thermomech property.

This work reports a simple and eco-friendly way of recycling polyethylene terephthalate (PET) waste. PET waste was glycolyzed using trimethylolpropane (TMP) giving tetra-functional glycolyzate, to prepare alkyd resin. 0.25% ZnOAc and the TMP to PET molar ratio of 12:1 at 220°C produced the best yield of glycolyzate. The obtained glycolyzate was characterized by Fourier transform IR spectroscopy (FTIR) spectroscopy, 1H and 13C NMR (NMR) and further used in the synthesis of alkyd resins. The properties of the prepared alkyd resins including acid value, the pencil hardness, chem. resistance and thermal stability, were investigated. The pencil hardness of the cured resins film is 3H, which is better than the com. alkyd resin YF-155. Thermogravimetric anal. (TGA) exhibited polymer decomposition occurred above 160°C. When compared to com. coatings, Zanthoxylum bungeanum seed oil (ZSO)-based alkyd resin from postconsumer PET bottles has potential for com. applications, and may even be superior in thermal and chem. resistance.

Journal of Polymers and the Environment published new progress about Acid number. 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

Moreira, Denise Ramos; Ferreira, Elano Nery; Neto, Joao Francisco Camara; Bezerra, Lucas Lima; Monteiro, Norberto de Kassio Vieira; do Valle, Camila Peixoto; Arruda, Tathilene Bezerra Mota Gomes; de Lima Neto, Pedro; Rodrigues, Jailson Silva; Rodrigues, Francisco Eduardo Arruda; Petzhold, Cesar Liberato; Maier, Martin E.; Ricardo, Nagila Maria Pontes Silva published the artcile< Green lubricants production from Nile tilapia waste and prediction of physical properties through molecular dynamics simulations>, Related Products of 112-63-0, the main research area is Nile tilapia waste green lubricant property mol dynamics simulation.

Fish farming is a worldwide growing activity and a large amount of residues is produced in this process. The present work describes a cleaner and sustainable way to produce new lubricants from fish waste oil. Oil extracted from the Nile tilapia (Oreochromis niloticus) viscera was utilized as raw material to produce basic oil for lubricants. The products were synthesized by esterification with polyols, trimethylolpropane (TMP) and pentaerythritol (PE), using p-toluenesulfonic acid (p-TSA) as catalyst. The synthesized esters were characterized by IR (IR) and NMR (NMR). Computational methods were used to predict the phys. characteristics of the material. In addition, the main physicochem. properties were evaluated, as well as the thermal behavior and toxicity of the products against Artemia salina. The synthesized esters showed high viscosity indexes (VI > 150) and viscosities that fit the degree of application ISO-46 and 150. Mol. dynamics simulations indicated that at room temperature the lubricants Tilapia fatty acid – trimethylolpropane ester (T-TMPE) and Tilapia fatty acid – pentaerythritol ester (T-PEE) are in liquid and gel states, resp., confirming the exptl. data. The products did not present toxicity against A. salina. In this research, we reinforce the potential of using tilapia oil from waste to produce green lubricants as a strategy to reduce damage to the environment, as well as the use of computational methods that collaborate to predict phys. properties of lubricants.

Journal of the American Oil Chemists’ Society published new progress about Artemia salina. 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

Buku, Angeliki; Eggena, Patrick; Wyssbrod, Herman R.; Schwartz, Irving L.; Gazis, Diana; Somoza, Lisa I.; Glass, John D. published the artcile< [1-Desamino,7-lysine,8-arginine]vasotocin: attachment of reporter groups and affinity ligands through the lysine side chain>, HPLC of Formula: 112-63-0, the main research area is lysine deaminovasotocin preparation acylation; biotinyllysine deaminovasotocin; azidobenzoyllysine deaminovasotocin; affinity ligand lysine deaminovasotocin.

The title vasotocin analog was prepared by the solid-phase method and then it was acylated with d-biotin p-nitrophenyl ester and succinimidyl 4-azidobenzoate to give the corresponding Nε-d-biotinyl and Nε-azidobenzoyl derivatives, resp. The latter acyl derivatives are suitable as affinity ligands and photoaffinity ligands.

Journal of Medicinal Chemistry published new progress about Antidiuretics. 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

Larock, Richard C.; Yum, Eul K.; Doty, Mark J.; Sham, Kelvin K. C. published the artcile< Synthesis of Aromatic Heterocycles via Palladium-Catalyzed Annulation of Internal Alkynes>, Electric Literature of 112-63-0, the main research area is heteroannulation alkyne iodophenol iodobenzoate; benzofuran; benzopyran; isocoumarin; isoquinoline.

Pd catalyzes the heteroannulation of internal alkynes bearing tert-alkyl, aryl, or silyl groups by o-iodophenols, benzylic amides, benzylic alcs., and benzoates to afford good yields of the corresponding benzofurans, 1,2 -dihydroisoquinolines, benzopyrans, and isocoumarins.

Journal of Organic Chemistry published new progress about Alkynes Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Hsu, Jen-Yu; Sun, Hsin-Yun; Hsieh, Tan-Wen; Chang, Sui-Yuan; Chuang, Yu-Chung; Huang, Yu-Shan; Hsiao, Ching-Yu; Su, Yi-Ching; Liu, Wen-Chun; Chang, Shu-Fang; Hung, Chien-Ching published the artcile< Incidence of low-level viremia and its impact on virologic failure among people living with HIV-1 who switched to elvitegravir-based antiretroviral therapy>, Related Products of 112-63-0, the main research area is elvitegravir antiretroviral agent human immunodeficiency virus1 infection; Integrase strand transfer inhibitor; Plasma HIV RNA load; Resistance-associated mutation; Viral blip; Virologic response.

We aimed to investigate the incidence of low-level viremia (LLV) and its impact on virol. failure (VF) in people living with HIV (PLWH) on stable antiretroviral therapy (ART) who switched to co-formulated elvitegravir, cobicistat, emtricitabine and tenofovir alafenamide (EVG/c/FTC/TAF). PLWH aged 18 years or older who had received ART with plasma HIV RNA load (PVL) <50 copies/mL for 6 mo or longer and switched to EVG/c/FTC/TAF between March and Oct. 2018 were retrospectively included. The incidence of LLV (defined as PVL of 50-999 copies/mL) and VF (PVL ≥1000 copies/mL) was calculated and represented by Kaplan-Meier plots. The generalised estimating equation model was constructed to identify factors associated with LLV and VF. Resistance-associated mutations were determined using population sequencing. A total of 1078 PLWH were included. The incidence rates of LLV and VF after the switch to EVG/c/FTC/TAF were 3.5 and 0.8 events per 100 person-years of follow-up, resp., whereas the resp. cumulative incidence of LLV and VF reached 11.7% and 2.9% within 3 years of follow-up. LLV was associated with any LLV episode before or after the switch and prior exposure to integrase strand transfer inhibitor-based ART. VF was associated with any LLV before or after the switch and prior exposure to raltegravir, but not the level or frequency of LLV. The risks of LLV and VF were low in PLWH who had achieved virol. suppression and switched to EVG/c/FTC/TAF, and the presence of LLV and prior exposure to raltegravir increased the risk of VF. Journal of Global Antimicrobial Resistance published new progress about Antiviral agents. 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

Thomson, Jennifer E.; Campbell, Craig D.; Concellon, Carmen; Duguet, Nicolas; Rix, Kathryn; Slawin, Alexandra M. Z.; Smith, Andrew D. published the artcile< Probing the Efficiency of N-Heterocyclic Carbene Promoted O- to C-Carboxyl Transfer of Oxazolyl Carbonates>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is carbonate oxazolyl Steglich rearrangement carboxyl transfer azolium salt catalyst; oxazolone alkoxycarbonyl aryloxycarbonyl preparation.

Screening a range of azolium salts, bases and solvents for reactivity indicates that triazolinylidenes, generated in situ with KHMDS in THF, promote the Steglich rearrangement of oxazolyl carbonates I (R1 = 4-MeOC6H4; R2 = Me, Me2CH, Me2CHCH2, MeSCH2CH2, Ph, PhCH2; R3 = Me, Me2CH, Cl3CCMe2, Ph, PhCH2, PhCH2CHMe, Me2CHCHMe) to [alkoxy(or aryloxy)carbonyl]oxazolones II with high catalytic efficiency (typical reaction time 5 min at <1.5 mol % NHC). This protocol shows wide substrate applicability, even allowing the efficient generation of vicinal quaternary centers. An improved exptl. procedure is also described that allows a simplified one-pot reaction protocol to be employed with similarly high catalytic efficiency. Journal of Organic Chemistry published new progress about Carbenes (methylene derivatives) Role: CAT (Catalyst Use), SPN (Synthetic Preparation), USES (Uses), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Luo, Jin; Bai, Rui; Liu, Yunxiao; Bi, Hong; Shi, Xiangzhen; Qu, Chongxiao published the artcile< Long non-coding RNA ATXN8OS promotes ferroptosis and inhibits the temozolomide-resistance of gliomas through the ADAR/GLS2 pathway>, Application of C19H34O2, the main research area is temozolomide long non coding RNA ferroptosis glioma; ADAR; ATXN8OS; Ferroptosis; Gliomas; TMZ-resistance.

As the most common malignant tumor, gliomas remain a poor prognosis while chemotherapy resistance is a medical problem for the treatment of glioma. Considering the correlation between drug resistance and ferroptosis, this study aims to explore the mechanism of chemotherapy resistance in glioma from the perspective of epigenetics. Because of the low expression of long non-coding RNA (lncRNA) ATXN8 opposite strand (ATXN8OS) in glioma cell lines, the role of ATXN8OS was explored by the detection on ferrous iron (Fe2+)/lipid reactive oxygen species (ROS), function experiments and assays performed with xenograft model, proving that ATXN8OS inhibited temozolomide (TMZ)-resistance of glioma. After subcellular fractionation and FISH assays revealed that ATXN8OS was mainly located in cytoplasm, we determined the RNA binding protein (RBP) of ATXN8OS as adenosine deaminase acting on RNA (ADAR) via RNA binding protein immunoprecipitation (RIP), RNA pull down and western blot assays. Furthermore, we verified that ATXN8OS stabilized glutaminase 2 (GLS2) mRNA by recruiting ADAR and GLS2 restrained TMZ-resistance of glioma both in vitro and in vivo. Rescue experiments indicated that ATXN8OS modulated TMZ-resistance of glioma through GLS2. In conclusion, ATXN8OS mediated ferroptosis and regulated the TMZ-resistance of glioma via ADAR/GLS2 pathway.

Brain Research Bulletin published new progress about Chemotherapy. 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

Sakai, Takaaki; Hirashima, Shin-ichi; Matsushima, Yasuyuki; Nakano, Tatsuki; Ishii, Daiki; Yamashita, Yoshifumi; Nakashima, Kosuke; Koseki, Yuji; Miura, Tsuyoshi published the artcile< Synthesis of Chiral γ,γ-Disubstituted γ-Butenolides via Direct Vinylogous Aldol Reaction of Substituted Furanone Derivatives with Aldehydes>, Related Products of 112-63-0, the main research area is hydroxymethyl butenolide regioselective diastereoselective enantioselective preparation; stereoselective vinylogous aldol addition butenolide aldehyde sulfonamide squaramide catalyst.

In the presence of a quinine-derived squaramide-sulfonamide, aldehydes RCHO (R = 4-ClC6H4, 3-ClC6H4, 2-ClC6H4, 4-BrC6H4, 4-F3CC6H4, Ph, 4-MeC6H4, 4-MeOC6H4, 1-naphthyl, 2-naphthyl, 2-furanyl, cyclohexyl, BuCH2) underwent regioselective, diastereoselective, and enantioselective vinylogous aldol addition reactions with γ-substituted β,γ-butenolides such as γ-angelica lactone to yield anti-(hydroxymethyl)butenolides such as I (R = 4-ClC6H4, 3-ClC6H4, 2-ClC6H4, 4-BrC6H4, 4-F3CC6H4, Ph, 4-MeC6H4, 4-MeOC6H4, 1-naphthyl, 2-naphthyl, 2-furanyl, cyclohexyl, BuCH2) in up to 95% ee.

Organic Letters published new progress about Addition reaction catalysts, stereoselective (vinylogous aldol, regioselective). 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