Month: November 2022

On February 25, 2021, Yang, Zongfan; Chen, Pei; Hao, Wenjing; Xie, Zhen; Feng, Yu; Xing, Guolong; Chen, Long published an article.Product Details of 91-16-7 The title of the article was Sulfonated 2D Covalent Organic Frameworks for Efficient Proton Conduction. And the article contained the following:

Open 1D channels found in covalent organic frameworks are unique and promising to serve as pathways for proton conduction; how to develop high-rate yet stable transporting systems remains a substantial challenge. Herein, this work reports a strategy for exploring proton-conducting frameworks by engineering pore walls and installing proton-containing polymers into the pores. Amide-linked and sulfonated frameworks were synthesized from imine-linked precursors via sequentially engineering to oxidize into amide linkages and to further anchor sulfonic acid groups onto the pore walls, enabling the creation of sulfonated frameworks with high crystallinity and channel ordering. Integrating sulfonated polyether ether ketone chains into the open channels enables proton hopping to across the channels, greatly increases proton conductivity and enables a stable continuous run. These results suggest a way to explore proton-conducting COFs via systematic engineering of the wall and space of the open nanochannels. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Product Details of 91-16-7

The Article related to sulfonated covalent organic framework proton conductivity crystallinity nanochannel, covalent organic frameworks, post-synthesis, proton conduction, stability, sulfonation and other aspects.Product Details of 91-16-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Liu, Wei; Liu, Sheng; Xie, Hongqi; Qing, Zhixing; Zeng, Jianguo; Cheng, Pi published an article in 2015, the title of the article was TBHP mediated oxidation of N-2-alkynylphenyl α-amino carbonyl compounds to oxalic amides using visible light photoredox catalysis and their application in the synthesis of 2-aryl indoles.Application In Synthesis of 2-((4-Methoxyphenyl)ethynyl)aniline And the article contains the following content:

A visible light promoted and TBHP mediated oxidative reaction of N-((2-arylalkynyl)aryl)glycine esters I [R1 = H, 4-Me, 4-F, 4-Cl; R2 = C6H5, Pr, 2-F-C6H4, etc.] to give (2-arylalkynyl)oxalic amides II was developed. In the presence of CuBr and photocatalyst Ru(bpy)3Cl2, the reaction proceeded smoothly to afford the corresponding oxalic amides under the irradiation of 26 W compact fluorescence bulb at room temperature Furthermore, compounds II were further reacted to give 2-aryl indoles III [R1 = H, 5-F; R3 = H, 4-Me, 2-F, 4-F] without an addnl. deacylation step through a favored 5-endo-dig N-cyclization process using AgNO3 as catalyst. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Application In Synthesis of 2-((4-Methoxyphenyl)ethynyl)aniline

The Article related to aryl indole preparation, arylalkynyl oxalic amide preparation silver nitrate catalyst cyclization, tbhp oxidant arylalkynyl glycine ester ruthenium photocatalyst oxidation and other aspects.Application In Synthesis of 2-((4-Methoxyphenyl)ethynyl)aniline

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On October 31, 2022, Kurbanoglu, Sevinc; Cevher, Sevki Can; Toppare, Levent; Cirpan, Ali; Soylemez, Saniye published an article.Application of 91-16-7 The title of the article was Electrochemical biosensor based on three components random conjugated polymer with fullerene (C60). And the article contained the following:

Herein, a conjugated polymer and fullerene bearing architecture-based electrochem. Tyrosinase (Tyr) enzyme inhibition biosensor for indomethacin (INDO) drug active compound has been developed. For this purpose, three moieties of benzoxadiazole, thienopyrroledione, and benzodithiophene containing conjugated polymer; poly[BDT-alt-(TP;BO)] was used as a transducer modifier together with fullerene for catechol detection. The specific combination of these materials is considered an effective way to fabricate highly sensitive and fast response catechol biosensors for the first time. Electrochem. and surface characteristics of the modified electrodes were obtained by cyclic voltammetry, electrochem. impedance spectroscopy, SEM, and at. force microscopy. The effect of the parameters during chronoamperometric measurements on the biosensor response was also studied. Using optimized conditions, biosensing of catechol was achieved between 0.5 and 62.5 μM with a limit of the detection 0.11 μM. Tyr inhibition was followed with INDO drug active compound and it was found that INDO has a mixed type characteristic of enzyme kinetics with an I50 value of 15.11 μM. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Application of 91-16-7

The Article related to graphite electrode polymer fullerene tyrosinase electrochem biosensor, catechol detection, conjugated random polymer, enzyme inhibition, fullerene, indomethacin, tyrosinase and other aspects.Application of 91-16-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On November 8, 2021, Deolka, Shubham; Govindarajan, Ramadoss; Khaskin, Eugene; Fayzullin, Robert R.; Roy, Michael C.; Khusnutdinova, Julia R. published an article.Quality Control of 2-Methoxynaphthalene The title of the article was Photoinduced Trifluoromethylation of Arenes and Heteroarenes Catalyzed by High-Valent Nickel Complexes. And the article contained the following:

Authors describe a series of air-stable NiIII complexes supported by a simple, robust naphthyridine-based ligand. Access to the high-valent oxidation state is enabled by the CF3 ligands on the nickel, while the naphthyridine exhibits either a monodentate or bidentate coordination mode that depends on the oxidation state and sterics, and enables facile aerobic oxidation of NiII to NiIII. These NiIII complexes act as efficient catalysts for photoinduced C(sp2)-H bond trifluoromethylation reactions of (hetero)arenes using versatile synthetic protocols. This blue LED light-mediated catalytic protocol proceeds via a radical pathway and demonstrates potential in the late-stage functionalization of drug analogs. The experimental process involved the reaction of 2-Methoxynaphthalene(cas: 93-04-9).Quality Control of 2-Methoxynaphthalene

The Article related to arene heteroarene photoinduced trifluoromethylation high valent nickel complex, c−h bond functionalization, nickel, photoreactivity, radical formation, trifluoromethylation and other aspects.Quality Control of 2-Methoxynaphthalene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On October 15, 2020, Yang, Qing-Yu; Zhang, You-Ming; Ma, Xiao-Qiang; Dong, Hong-Qiang; Zhang, Yun-Fei; Guan, Wen-Li; Yao, Hong; Wei, Tai-Bao; Lin, Qi published an article.HPLC of Formula: 150-78-7 The title of the article was A pillar[5]arene-based fluorescent sensor for sensitive detection of L-Met through a dual-site collaborative mechanism. And the article contained the following:

L-Methionine (L-Met) is one of the essential amino acids in human health, efficiently detect L-Met is a significant issue. Herein, a concept “dual-site collaborative recognition” had been successfully introduced into the design and achieved high selective and sensitive recognition of L-Met. In order to realize the “dual-site collaborative recognition”, the authors rationally designed and synthesized an ester functionalized pillar[5]arene-based fluorescent sensor (SP5). And it shows blue Aggregation-induced emission (AIE) fluorescence. In the SP5, the pillar[5]arene group act as C-H···π interactions site, and ester group serve as multi hydrogen bonding acceptor. The SP5 exhibited high selectivity and sensitivity (2.84 × 10-8 M) towards L-Met based on the collaboration of electron-rich cavernous pillar[5]arene group and ester group through C-H···π and H-bond interactions, resp. This “dual-site collaborative recognition” mechanism has been studied by 1H NMR, ESI-MS and theor. calculation including frontier orbital (HOMO and LUMO), electrostatic potential (ESP) and the noncovalent interaction (NCI). These theor. calculations not only support the proposed host-guest recognition mechanism, but also provided visualized information on the “dual-site collaborative recognition” mode. Furthermore, the concept “dual-site collaborative recognition” is an effective strategy for easily detecting biol. mols. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).HPLC of Formula: 150-78-7

The Article related to pillararene based fluorescent probe met dual site collaborative mechanism, aiegen, dft calculation, dual-site collaborative recognition, fluorescent sensor, pillar[n]arenes and other aspects.HPLC of Formula: 150-78-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Marrot, Laetitia; Meile, Kristine; Zouari, Mariem; DeVallance, David; Sandak, Anna; Herrera, Rene published an article in 2022, the title of the article was Characterization of the compounds released in the gaseous waste stream during the slow pyrolysis of hemp (Cannabis sativa L.).HPLC of Formula: 91-16-7 And the article contains the following content:

This study aims to characterize and valorize hemp residual biomass by a slow pyrolysis process. The volatile byproducts of hemp carbonization were characterized by several methods (TGA, UV-VIS, TLC, Flash Prep-LC, UHPLC, QTOF-MS) to understand the pyrolysis reaction mechanisms and to identify the chem. products produced during the process. The obtained carbon yield was 29%, generating a gaseous stream composed of phenols and furans which was collected in four temperature ranges (F1 at 20-150掳C, F2 at 150-250掳C, F3 at 250-400掳C and F4 at 400-1000掳C). The obtained liquid fractions were separated into subfractions by flash chromatog. The total phenolic content (TPC) varied depending on the fraction but did not correlate with an increase in temperature or with a decrease in pH value. Compounds present in fractions F1, F3 and F4, being mainly phenolic mols. such as guaiacyl or syringyl derivatives issued from the lignin degradation, exhibit antioxidant capacity. The temperature of the pyrolysis process was pos. correlated with detectable phenolic content, which can be explained by the decomposition order of the hemp chem. constituents. A detailed understanding of the chem. composition of pyrolysis products of hemp residuals allows for an assessment of their potential valorization routes and the future economic potential of underutilized biomass. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).HPLC of Formula: 91-16-7

The Article related to cannabis slow pyrolysis valorization gaseous waste stream antioxidant, biocompounds, gaseous phase, hemp by-products, residual stream, slow pyrolysis, thermal decomposition and other aspects.HPLC of Formula: 91-16-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On November 5, 2014, Milner, Phillip J.; Kinzel, Tom; Zhang, Yong; Buchwald, Stephen L. published an article.Safety of 1-Fluoro-2-methoxybenzene The title of the article was Studying Regioisomer Formation in the Pd-Catalyzed Fluorination of Aryl Triflates by Deuterium Labeling. And the article contained the following:

Isotopic labeling was used to determine that a portion of the desired product in the Pd-catalyzed fluorination of electron-rich, nonortho-substituted aryl triflates results from direct C-F cross-coupling. In some cases, formation of a Pd-aryne intermediate is responsible for producing undesired regioisomers. The generation of the Pd-aryne intermediate occurs primarily via ortho-deprotonation of a L路Pd(Ar)OTf (L = biaryl monophosphine) species by CsF and thus competes directly with the transmetalation step of the catalytic cycle. D labeling studies were conducted with a variety of aryl triflates. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Safety of 1-Fluoro-2-methoxybenzene

The Article related to palladium complex catalyzed fluorination coupling aryl triflate deuterium labeling, aryne palladacycle intermediate preparation catalyst fluorination coupling aryl triflate and other aspects.Safety of 1-Fluoro-2-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On May 20, 2015, Minar, Norma K.; Docampo, Pablo; Fattakhova-Rohlfing, Dina; Bein, Thomas published an article.SDS of cas: 146370-51-6 The title of the article was Guided in Situ Polymerization of MEH-PPV in Mesoporous Titania Photoanodes. And the article contained the following:

Incorporation of conjugated polymers into porous metal oxide networks is a challenging task, which is being pursued via many different approaches. We have developed the guided in situ polymerization of poly(2-methoxy-5-(2′-ethylhexyloxy)-p-phenylenevinylene) (MEH-PPV) in porous titania films by means of surface functionalization. The controlled polymerization via the Gilch route was induced by an alkoxide base and by increasing the temperature The selected and specially designed surface-functionalizing linker mols. mimic the monomer or its activated form, resp. In this way, we drastically enhanced the amount of MEH-PPV incorporated into the porous titania phase compared to nonfunctionalized samples by a factor of 6. Addnl., photovoltaic measurements were performed. The devices show shunting or series resistance limitations, depending on the surface functionalization prior to in situ polymerization of MEH-PPV. We suggest that the reason for this behavior can be found in the orientation of the grown polymer chains with respect to the titania surface. Therefore, the geometry of the anchoring via the linker mols. is relevant for exploiting the full electronic potential of the conjugated polymer in the resulting hybrid composite. This observation will help to design future synthesis methods for new hybrid materials from conjugated polymers and n-type semiconductors to take full advantage of favorable electronic interactions between the two phases. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).SDS of cas: 146370-51-6

The Article related to guided polymerization meh ppv mesoporous titania photoanode, meh-ppv, hybrid materials, in situ polymerization, mesoporous titania, nanocomposite, surface functionalization and other aspects.SDS of cas: 146370-51-6

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On February 17, 2016, Ortiz-Cervantes, Carmen; Flores-Alamo, Marcos; Garcia, Juventino J. published an article.Recommanded Product: 2-((4-Methoxyphenyl)ethynyl)aniline The title of the article was Synthesis of pyrrolidones and quinolines from the known biomass feedstock levulinic acid and amines. And the article contained the following:

A series of N-(alkyl/aryl/aralkyl)-5-methyl-2-pyrrolidones I [R = t-Bu, c-hex, Bn, etc.] was prepared via ruthenium nanoparticles- catalyzed reductive amination of levulinic acid with various amines using formic acid as the hydrogen source. Ruthenium nanoparticles with a mean diameter of cal 3.8 nm were prepared by thermal decomposition of [Ru3(CO)12] in solvent-free conditions. When these reductive thermal reactions were carried out without the catalyst, the pyrrolidons were obtained with low yield and poor selectivity. The reductive amination reaction between levulinic acid and 2-ethynyl aniline surprisingly produced 2-(2,4-dimethylquinolin-3-yl)acetic acid. Furthermore, synthesis of substituted quinolines II [R1 = H, Et; R2 = H, Me, OMe] was achieved through p-toluenesulfonic acid-promoted condensation of levulinic acid and 2-alkynyl anilines. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Recommanded Product: 2-((4-Methoxyphenyl)ethynyl)aniline

The Article related to pyrrolidone preparation, levulinic acid primary amine reductive amination ruthenium nanoparticle catalyst, quinoline preparation, alkynyl aniline levulinic acid condensation and other aspects.Recommanded Product: 2-((4-Methoxyphenyl)ethynyl)aniline

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On September 24, 2021, Song, Yaru; Feng, Guangyuan; Sun, Chenfang; Liang, Qiu; Wu, Lingli; Yu, Xi; Lei, Shengbin; Hu, Wenping published an article.Category: ethers-buliding-blocks The title of the article was Ternary Conductance Switching Realized by a Pillar[5]arene-Functionalized Two-Dimensional Imine Polymer Film. And the article contained the following:

Nowadays, most manufacturing memory devices are based on materials with elec. bistability (i. e., “0” and “1”) in response to an applied elec. field. Memory devices with multilevel states are highly desired so as to produce high-d. and efficient memory devices. Herein, we report the first multichannel strategy to realize a ternary-state memristor. We make use of the intrinsic sub-nanometer channel of pillar[5]arene and nanometer channel of a two-dimensional imine polymer to construct an active layer with multilevel channels for ternary memory devices. Low threshold voltage, long retention time, clearly distinguishable resistance states, high ON/OFF ratio (OFF/ON1/ON2=1 : 10 : 103), and high ternary yield (75 %) were obtained. In addition, the flexible memory device based on 2DPTPAZ+TAPB can maintain its stable ternary memory performance after being bent 500 times. The device also exhibits excellent thermal stability and can tolerate a temperature as high as 300 掳C. It is envisioned that the results of this work will open up possibilities for multistate, flexible resistive memories with good thermal stability and low energy consumption, and broaden the application of pillar[n]arene. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Category: ethers-buliding-blocks

The Article related to arene functionalized two dimensional imine polymer film ternary conductance, 2d materials, conductive filaments, memristors, multistate, pillar[n]arenes, resistive switching and other aspects.Category: ethers-buliding-blocks

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem