Month: October 2022

Shandura, M. P.; Poronik, Ye. M.; Kovtun, Yu. P. published the artcile< New heterocyclic analogues of rhodamines>, Reference of 112-63-0, the main research area is rhodamine heterocyclic analog synthesis fluorescent property; fluorescent quantum yield hetarylpyronine.

Double formylation of 9-methylpyronine yielded the corresponding 9-diformylmethinexanthene which was heterocyclized to furnish 9-hetarylpyronines. The chem. and spectral behavior of the rhodamine analogs thus obtained was studied.

Dyes and Pigments published new progress about Fluorescence. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

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

Li, Dan; Zhu, Changyan; Zhang, Min; Wang, Ying; Kang, Ziye; Liu, Yulong; Liu, Jun; Liu, Jia; Xie, Haiming published the artcile< 1,2-dimethyl-3-propylimidazolium iodide as a multiple-functional redox mediator for Li-O2 batteries: In situ generation of a ""self-defensed"" SEI layer on Li anode>, Related Products of 112-63-0, the main research area is dimethyl propylimidazolium iodide redox mediator lithium oxygen battery anode.

How to develop a homogeneous redox mediator (RM) towards both ORR and OER and how to prevent the shuttle effect are two main issues for Li-O2 batteries thus far. Here, we firstly report 1,2-dimethyl-3-propylimidazolium iodide (DMPII), which serves multiple functions as a RM for discharge capacity promotion, a RM for charge potential reduction, and a Li anode protector for shuttling suppression by in situ generating a “”self-defensed”” SEI layer. Benefiting from these advantages, a cell with DMPII displays a stable cyclability with a low terminal charge potential of ∼3.6 V till the cell death, a considerable rate performance, and a good reversibility associated with Li2O2 formation and degradation Based on the exptl. and d. functional theory (DFT) calculation results, a working mechanism for a cell operation is also proposed. These results represent a promising progress in the development of multiple-functional RM for Li-O2 batteries. Moreover, we expect that this work gives an insight into the in situ protection of Li metal anode for board applications (e.g., Li-S batteries, all-solid-state Li-ion batteries, etc.).

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Adsorption. 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

Chen, Xun; Kuang, Sufang; He, Yi; Li, Hongyu; Yi, Chen; Li, Yiming; Wang, Chao; Chen, Guanhui; Chen, Shangwu; Yu, Dongsheng published the artcile< The Differential Metabolic Response of Oral Squamous Cell Carcinoma Cells and Normal Oral Epithelial Cells to Cisplatin Exposure>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is cisplatin anticancer agent drug metabolism oral squamous cell carcinoma; cisplatin exposure; metabolic response; metabolomics; normal oral epithelial cells; oral squamous cell carcinoma cells.

Metabolic reprogramming is one of the hallmarks of a tumor. It not only promotes the development and progression of tumor but also contributes to the resistance of tumor cells to chemotherapeutics. The difference in the metabolism between drug-resistant and sensitive tumor cells indicates that drug-resistant tumor cells have experienced metabolic adaptation. The metabolic response induced by chemotherapy is dynamic, but the early metabolic response of tumor cells to anticancer drugs and the effect of an initial response on the development of drug resistance have not been well studied. Early metabolic intervention may prevent or slow down the development of drug resistance. The differential metabolic responses of normal cells and tumor cells to drugs are unclear. The specific metabolites or metabolic pathways of tumor cells to chemotherapeutic drugs can be used as the target of metabolic intervention in tumor therapy. In this study, we used comparative metabolomics to analyze the differential metabolic responses of oral cancer cells and normal oral epithelial cells to short-term cisplatin exposure, and to identify the marker metabolites of early response in oral cancer cells. Oral cancer cells showed a dynamic metabolic response to cisplatin. Seven and five metabolites were identified as specific response markers to cisplatin exposure in oral cancer cell SCC-9 and normal oral epithelial cell HOEC, resp. Glyoxylate and dicarboxylate metabolism and fructose, malate, serine, alanine, sorbose and glutamate were considered as specific enriched metabolic pathways and biomarkers of SCC-9 cells in response to cisplatin, resp. The existence of differential metabolic responses lays a foundation for tumor chemotherapy combined with metabolic intervention.

Metabolites published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Samath, Sheik A.; Jeyasubramanian, Kadarkaraithangam; Thambidurai, Subramanian; Kamardeen, Sickandar; Ramalingam, Sutharavalli K. published the artcile< Substitutions of coordinated salicylaldehyde and its Schiff bases>, Reference of 112-63-0, the main research area is cobalt salicylaldehyde Schiff brominating agent reaction; copper salicylaldehyde Schiff brominating agent reaction; salicylaldehyde Schiff cobalt copper brominating agent; bromination cobalt copper salicylaldehyde Schiff; cyano substitution cobalt copper salicylaldehyde Schiff; succinimido substitution cobalt copper salicylaldehyde Schiff.

Several bis/tris-salicylaldehyde, salicylaldimine and salicylethylenediimine chelates of Co(III), Cr(III), Co(II), Ni(II) and Cu(II) readily react with various brominating agents and undergo α-bromo/cyano/succinimido substitution, with or without accompanying Br substitution of the aryl ring. The selectivity of these reactions on the metal-coordinated salicylaldehyde derivatives allows the preparation in 5-80% yield of hitherto unreported specific α-bromo products. Data are presented for several reactions with Co and Cu complexes. The substituted organic compounds could be isolated by demetalation of the chelate products.

Transition Metal Chemistry (Dordrecht, Netherlands) published new progress about Bromination. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

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

Sonsona, Isaac G.; Vicenzi, Andrea; Guidotti, Marco; Bisag, Giorgiana Denisa; Fochi, Mariafrancesca; Herrera, Raquel P.; Bernardi, Luca published the artcile< Investigation of Squaramide Catalysts in the Aldol Reaction En Route to Funapide>, COA of Formula: C19H34O2, the main research area is funapide squaramide catalyst aldol enantioselective organocatalysis.

Funapide (I) is a 3,3′-spirocyclic oxindole with promising analgesic activity. A reported pilot-plant scale synthesis of this chiral compound involves an asym. aldol reaction, catalyzed by a common bifunctional thiourea structure. In this work, we show that the swapping of the thiourea unit of the catalyst for a tailored squaramide group provides an equally active, but rewardingly more selective, catalyst for this aldol reaction (from 70.5 to 85% ee). The reaction was studied first on a model oxindole compound Then, the set of optimal conditions was applied to the target funapide intermediate. The applicability of these conditions seems limited to oxindoles bearing the 3-substituent of funapide. Exemplifying the characteristics of target-focused methodol. development, this study highlights how a wide-range screening of catalysts and reaction conditions can provide non-negligible improvements in an industrially viable asym. transformation.

European Journal of Organic Chemistry published new progress about Aldol addition catalysts, stereoselective. 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

Kang, Inhan; Kang, Jungwon published the artcile< Direct growth of CuO particles on carbon papers for high-performance rechargeable Li-O2 batteries>, Quality Control of 112-63-0, the main research area is lithium oxygen battery carbon paper copper oxide particle growth.

Lithium-oxygen (Li-O2) batteries are considered as a promising high-energy storage system. However, they suffer from overpotential and low energy efficiency. This study showed that CuO growth on carbon using facile synthesis (simple dipping and heating process) reduces overpotential, thus increasing the energy efficiency. We confirmed the structure of CuO on carbon using X-ray diffraction pattern, XPS, field-emission SEM, and field-emission transmission electron microscopy. The cathode of CuO on carbon shows an average overpotential reduction of ~6% charge/discharge during 10 cycles in nonaqueous Li-O2 batteries. The possible reason for the reduced charge overpotential of the cathode of CuO on carbon is attributed to the formed Li2O2 of smaller particle size during discharging compared to pristine carbon.

Journal of Nanoscience and Nanotechnology published new progress about Air. 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

Razazpour, Fateme; Najafi, Farhood; Moshaverinia, Alireza; Fatemi, Seyyed Mostafa; Sima, Shahabi published the artcile< Synthesis and characterization of a photo-cross-linked bioactive polycaprolactone-based osteoconductive biocomposite>, Application In Synthesis of 3290-92-4, the main research area is photocrosslinked bioactive polypropylene fumarate polycaprolactone osteoconductive biocomposite tissue engineering; PCL; PPF; bio composite; bone defect; copolymer; β-TCP.

In this study, a light cross-linkable biocomposite scaffold based on a photo-cross-linkable poly (propylene fumarate) (PPF)-co-polycaprolactone (PCL) tri-block copolymer was synthesized and characterized. The developed biodegradable scaffold was further modified with β-tricalcium phosphate (β-TCP) bioceramic for bone tissue engineering applications. The developed biocomposite was characterized using H NMR and Fourier transform IR spectroscopy. Moreover, the bioceramic particle size distribution and morphol. were evaluated using Brunauer-Emmett-Teller method, X-ray diffraction, and SEM. The mech. properties and biodegradation of the scaffolds were also evaluated. Cytotoxicity and mineralization assays were performed to analyze the biocompatibility and bioactivity capacity of the developed biocomposite. The characterization data confirmed the development of a biodegradable and photo-cross-linkable PCL-based biocomposite reinforced with β-TCP bioceramic. In vitro analyses demonstrated the biocompatibility and mineralization potential of the synthesized bioceramic. Altogether, the results of the present study suggest that the photo-cross-linkable PCL-PPF-PCL tri-block copolymer reinforced with β-TCP is a promising biocomposite for bone tissue engineering applications. According to the results, this newly synthesized material has a proper chem. composition for further clin.-relevant studies in tissue engineering.

Journal of Biomedical Materials Research, Part A published new progress about Biocomposites. 3290-92-4 belongs to class esters-buliding-blocks, and the molecular formula is C18H26O6, Application In Synthesis of 3290-92-4.

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

Lu, Xianghong; Chen, Qianxia; Lu, Jiaqi; Xu, Haoliang; Ji, Jianbing published the artcile< Investigation of reinforced braided hollow fiber membrane containing silver-based butanediol for methyl linolenate separation:Better penetration rate, higher stability>, SDS of cas: 112-63-0, the main research area is hollow fiber composite membrane silver butanediol methyl linolenate separation.

Supported liquid membranes show great potential in the efficient separation of Me linolenate from its analogs, but there still remain some critical challenges to further this technol. towards larger application because of the slow transmembrane transport and poor stability of liquid membrane. Herein, 1,2-butanediol (1,2-BDO) with good solubility for AgBF4 substitutes for ionic liquid as membrane solvent, and fabric reinforced hollow fiber composite membrane (PR-HFM) with higher mech. strength and interfacial area replaces plate membrane as base support. A new supported liquid membrane has been prepared by coating the 1,2-BDO solution dissolving AgBF4 on the surface of PR-HFM and embedding the solution into the micro-pores of PR-HFM by repeated pull with vacuum and push with N2. The as-prepared liquid membranes exhibit good separation performance and stability. It can be safely and steadily used to treat the feed with fatty acid Me esters (FAMEs) concentration < 150 mg/mL at the velocity of less than 0.22 m/s. Within 24 h continuous operation, Me linolenate (C18-3) can pass steadily through the liquid membrane at the mean permeability > 3.13 x 10-7 m/s, the C18-3 product with the purity > 82%, and the selectivity of C18-3 over C18-2 (SC18-3/C18-2) > 6.63 can be obtained steadily.

Journal of Membrane Science published new progress about Coating materials. 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

Gong, Ming; Kim, Jung Keun; Zhao, Xiuli; Li, Yabo; Zhang, Jianye; Huang, Mengmeng; Wu, Yangjie published the artcile< Visible-light-induced α-oxyamination of 1,3-dicarbonyls with TEMPO via a photoelectrocatalytic process applying a DSSC anode or in a DSSC system>, COA of Formula: C11H12O3, the main research area is oxyamination dicarbonyls TEMPO photoelectrocatalytic DSSC.

A green and environmentally friendly photoelectrocatalytic one-pot method was developed for the α-oxyamination between 1,3-dicarbonyls and TEMPO via a photoelectrocatalytic process using visible light as the energy source. The recovered DSSC anode (photocatalyst) could be used > 8 times, at the same time, the α-oxyamination reaction proceeding in the DSSC device might be involved in the photoelectrocatalysis process. Mechanistic studies establish that the reaction might undergo both the visible-light-induced radical and the ionic reaction processes.

Green Chemistry published new progress about 1,3-Dicarbonyl compounds Role: PEP (Physical, Engineering or Chemical Process), PRP (Properties), RCT (Reactant), PROC (Process), RACT (Reactant or Reagent). 94-02-0 belongs to class esters-buliding-blocks, and the molecular formula is C11H12O3, COA of Formula: C11H12O3.

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

Zhu, Jie S.; Son, Jung-Ho; Teuthorn, Andrew P.; Haddadin, Makhluf J.; Kurth, Mark J.; Tantillo, Dean J. published the artcile< Diverting Reactive Intermediates Toward Unusual Chemistry: Unexpected Anthranil Products from Davis-Beirut Reaction>, Formula: C9H9NO4, the main research area is interrupted Davis Beirut reaction anthranil preparation.

The discovery of a new variation on the Davis-Beirut reaction is described in which an atypical heterocyclic framework (the anthranil or benzo[c]isoxazole framework) is formed as the result of diversion of a key reactive intermediate away from its expected reactivity – a potentially general approach to reaction design and development. Exptl. and computational support for the proposed mechanism and origins of altered reactivity are described.

Journal of Organic Chemistry published new progress about Aromatic nitro compounds Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 30095-98-8 belongs to class esters-buliding-blocks, and the molecular formula is C9H9NO4, Formula: C9H9NO4.

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