Month: November 2022

On May 31, 2018, Zhou, Fan; Zhang, Jingshuang; Fu, Tianyi; Bai, Peng; Guo, Xianghai published an article.Recommanded Product: 321-28-8 The title of the article was Theoretical study on complexes and reactions of boron isotopic exchange separation with fluorinated anisoles as novel donors. And the article contained the following:

Semi-empirical and ab initio d.-functional theory (DFT) methods were evaluated for the description of isotope exchange reactions to produce enriched 10B species. We found that DFT calculations using M06-2X/6-311+G(3d,2p) functional and basis sets in combination with the SMD implicit solvation model were able to correctly predict the performance of various anisole-derived donor mols. We confirmed that fluorination results in greatly increased separation factors, and successfully identified the o- and 2,4-difluorinated anisole as superior donors for chem. exchange distillation These findings provide the basis for an efficient approach to rapidly screen and design new donor species. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Recommanded Product: 321-28-8

The Article related to anisole borontrifluoride complexation isotope exchange reaction enthalpy potential barrier, Physical Organic Chemistry: Addition, Elimination, and Substitution Reactions and other aspects.Recommanded Product: 321-28-8

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

Pereira, Raul; Wolstenhulme, Jamie; Sandford, Graham; Claridge, Timothy D. W.; Gouverneur, Veronique; Cvengros, Jan published an article in 2016, the title of the article was Synthesis and characterization of a novel N-F reagent derived from the ethano-Tröger’s base: 1JFN coupling constants as a signature for the N-F bond.Application of 321-28-8 And the article contains the following content:

Methylation of 2,8-dimethyl-6H,12H-5,11-ethanodibenzo[b,f][1,5]-diazocine (ethano-Troddoger’s base) with Me iodide followed by ion metathesis and fluorination with N-fluoro-2,3,4,5,6-pentachloropyridinium triflate affords a new electrophilic N-F reagent, that is more reactive than Selectfluor. 2D 19F-15N HMQC experiments provide 1JNF coupling constants which are diagnostic for the N-F functional group. The experimental process involved the reaction of 1-Fluoro-2-methoxybenzene(cas: 321-28-8).Application of 321-28-8

The Article related to electrophile preparation dimethylethanodibenzodiazocine methylation metathesis fluorination hmqc coupling constant, Physical Organic Chemistry: Addition, Elimination, and Substitution Reactions and other aspects.Application of 321-28-8

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

On April 30, 2020, Birolli, Willian Garcia; Zanin, Lucas Lima; Jimenez, David Esteban Quintero; Porto, Andre Luiz Meleiro published an article.Safety of 1,4-Dimethoxybenzene The title of the article was Synthesis of Knoevenagel Adducts Under Microwave Irradiation and Biocatalytic Ene-Reduction by the Marine-Derived Fungus Cladosporium sp. CBMAI 1237 for the Production of 2-Cyano-3-Phenylpropanamide Derivatives. And the article contained the following:

Abstract: The organic synthesis has been driven by the need of sustainable processes, which also requires efficiency and cost-effectiveness. In this work, we described the synthesis of nine Knoevenagel adducts between cyanoacetamide and aromatic aldehydes ((E)-2-cyano-3-(phenyl)acrylamide derivatives), employing triethylamine as catalyst under microwave irradiation in 30 min with excellent yields (93-99% yield). Then, these adducts were employed in the C-C double bond bioreduction by the marine-derived fungus Cladosporium sp. CBMAI 1237 for obtention of 2-cyano-3-phenylpropanamide derivatives in mild conditions and short reaction time for a whole-cells reduction (phosphate buffer pH 7.0, 32°C, 130 rpm, 8 h) with good yields (48-90%). It is important to emphasize that the exptl. conditions, especially the reaction time, should be carefully evaluated for the obtention of high yields. Since a biodegradation process consumed the obtained product in extended periods, probably due to the use of the substrate as carbon and nitrogen source. This approach showed that the use of coupled and greener catalysis methods such as microwave irradiation and biocatalytic reduction, which employs unique biocatalysts like marine-derived fungi, can be an interesting tool for the obtention of organic mols. The experimental process involved the reaction of 1,4-Dimethoxybenzene(cas: 150-78-7).Safety of 1,4-Dimethoxybenzene

The Article related to cladosporium biotransformation, biocatalysis, bioreduction, biotransformation, green chemistry, knoevenagel condensation, Fermentation and Bioindustrial Chemistry: Single-Cell Protein and Cell Growth and other aspects.Safety of 1,4-Dimethoxybenzene

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

Li, Yiming; Xie, Weisi; Jiang, Xuefeng published an article in 2015, the title of the article was Mechanistic Study of a Photocatalyzed C-S Bond Formation Involving Alkyl/Aryl Thiosulfate.Safety of Benzyl(4-bromophenyl)sulfane And the article contains the following content:

This study presents thioether construction involving alkyl/aryl thiosulfates and diazonium salt catalyzed by visible-light-excited [Ru(bpy)3Cl2] at room temperature in 44-86 % yield. ESR studies found that thiosulfate radical formation was promoted by K2CO3. Conversely, radicals generated from BnSH or BnSSBn (Bn=benzyl) were clearly suppressed, demonstrating the special property of thiosulfate in this system. Transient absorption spectra confirmed the electron-transfer process between [Ru(bpy)3Cl2] and 4-MeO-Ph diazonium salt, which occurred with a rate constant of 1.69×109 m-1 s-1. The corresponding radical trapping product was confirmed by X-ray diffraction. The full reaction mechanism was determined together with emission quenching data. Furthermore, this system efficiently avoided the over-oxidation of sulfide caused by H2O in the photoexcited system containing Ru2+. Both aryl and heteroaryl diazonium salts with various electronic properties were investigated for synthetic compatibility. Both alkyl- and aryl-substituted thiosulfates could be used as substrates. Notably, pharmaceutical derivatives afforded late-stage sulfuration smoothly under mild conditions. The experimental process involved the reaction of Benzyl(4-bromophenyl)sulfane(cas: 53136-21-3).Safety of Benzyl(4-bromophenyl)sulfane

The Article related to carbon sulfur bond formation photocatalysis alkyl aryl thiosulfate, bond formation, mechanistic study, organic thiosulfates, pharmaceuticals sulfuration, photocatalysis, Physical Organic Chemistry: Addition, Elimination, and Substitution Reactions and other aspects.Safety of Benzyl(4-bromophenyl)sulfane

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

On March 12, 2021, Butzelaar, Andreas J.; Liu, Kun L.; Roering, Philipp; Brunklaus, Gunther; Winter, Martin; Theato, Patrick published an article.Related Products of 929-37-3 The title of the article was A Systematic Study of Vinyl Ether-Based Poly(Ethylene Oxide) Side-Chain Polymer Electrolytes. And the article contained the following:

Herein, we report on the synthesis of a systematic library of vinyl ether-based poly(ethylene oxide) (PEO) side-chain copolymers in order to reduce the crystallization of PEO. The influence of different grafted PEO side chain lengths, the grafting d., and the [Li+]:[EO] ratio after mixing with LiTFSI on the glass transition temperature (Tg), the crystallinity, and the resulting ionic conductivity was examined Copolymers bearing longer PEO side chains and higher grafting densities show higher crystallization tendencies while their Tg is reduced at the same time. Furthermore, the addition of LiTFSI reduces crystallization but increases Tg. Because these effects are directly impacting the ionic conductivity, we demonstrate that the different parameters need to be carefully adjusted in order to balance their influence. In this way, a fundamental view that shows the potential of PEO side-chain copolymers for their applications as polymer electrolytes is provided. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Related Products of 929-37-3

The Article related to vinyl ether polyethylene oxide polymer electrolyte, Physical Properties of Synthetic High Polymers: Physical Properties Of Polymers and other aspects.Related Products of 929-37-3

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

On July 8, 2013, Khoshkhoo, Mahdi Samadi; Taromi, Faramarz Afshar; Kowsari, Elaheh; Shalamzari, Elham Khodabakhshi published an article.Application of 146370-51-6 The title of the article was Contribution of chromophores with different numbers of repeat units to overall emission of MEH-PPV: An experimental and simulation study. And the article contained the following:

In the present study, poly[1-methoxy-4-(2′-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) was synthesized, modified and characterized by FTIR, NMR, GPC, UV/vis absorption, fluorescence, and mass spectroscopy. The effective conjugation length was controlled by introducing phys. and chem. defects into the chain backbone. It was observed that absorption and emission spectra of polymer chains were blue-shifted by importing structural deficiencies. Chem. defects were introduced by controlled oxidation of vinylene double bonds using m-chloroperbenzoic acid and phys. defects were induced by tuning polymer-solvent interactions (varying solvent quality). It was shown for the first time that the recorded fluorescence spectrum of MEH-PPV can be reconstructed using the emission data of oligomeric constituents and the contribution of chromophores with different numbers of repeat units to overall emission can be quantified. The effect of excitation energy on the emission pattern was also investigated. It was shown that the emission contribution of shorter chromophores to overall emission is detectable using high excitation energies. Finally, atomistic mol. dynamic (MD) simulation was used to investigate the polymer chain conformation in methanol and chloroform. The results obtained from torsional angles studies confirmed the presence of a great number of induced phys. defects in the backbone and, hence, a collapsed conformation of polymer chains in methanol. Evaluations of phys. defects along the chain proposed the average number of coplanar Ph rings of ∼5 and 14 for polymer chains in methanol and chloroform resp. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Application of 146370-51-6

The Article related to meh ppv emission chromophore repeating unit effect, Physical Properties of Synthetic High Polymers: Physical Properties Of Polymers and other aspects.Application of 146370-51-6

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

On April 18, 2001, Li, Zuyi; Wu, Zhongliu published a patent.Quality Control of (S)-2-(2-Methoxyphenyl)propanoic acid The title of the patent was Rhodococcus sp. d12 and its culture method and application. And the patent contained the following:

The Rhodococcus sp.D12 (CGMCC Number0497) is prepared by culturing in culture medium at 15-40° for 1-3 d, culturing again in culture liquid at 15-40° for 1-3 d, washing with physiol. saline, and centrifugating or filtering. The culture medium comprises C source 0-20, N source 1-15, 0.5-5 g L-1 phosphate buffer 0-10, NaCl 0-1, microelement 0-5, and agar 10-40 g L-1, and its pH is 3-8. The culture liquid is composed of C source 0-20, N source 1-15, 0.5-5 g L-1 phosphate buffer 0-10, NaCl 0-1, microelement 0-5, and inducer 0.2-10 g L-1, and its pH is 3-8. The C source is selected from glucose, sucrose, fructose, maltose, lactose, xylose, soluble starch, ethanol, Na succinate, mannitol, and soluble dextrin. The N source is selected from yeast extract, beef extract, soya extract, peptone, L-Glu, (NH4)2SO4, NH4Cl, or NH4NO3. The inducer is benzamide, urea, acetonitrile, methacrylonitrile, methacrylamide, isobutyric acid, butyronitrile, acrylamide, formamide, or propionic acid. The microelement is Zn, Mn, Co, Ni, Mg, Fe, Ca, Cu, or B. The Rhodococcus sp. D12 is used as hydrolytic catalyst of nitrile compounds The experimental process involved the reaction of (S)-2-(2-Methoxyphenyl)propanoic acid(cas: 81616-80-0).Quality Control of (S)-2-(2-Methoxyphenyl)propanoic acid

The Article related to rhodococcus nitrile compound hydrolysis acid amide, Fermentation and Bioindustrial Chemistry: Pharmaceuticals (Including Nutrients) and other aspects.Quality Control of (S)-2-(2-Methoxyphenyl)propanoic acid

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

On June 30, 2000, Park, Lee Soon; Han, Yoon Soo; Kim, Sang Dae; Kim, Woo Sik; Lee, Dong Ho; Min, Kyung Eun; Seo, Kwan Ho; Kang, Inn Kyu published an article.SDS of cas: 146370-51-6 The title of the article was Synthesis of conjugated copolymers containing biphenyl group and their electroluminescence characteristics. And the article contained the following:

Poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene vinylene) (MEH-PPV) and poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene vinylene-co-1,1′-biphenyl-4,4′-xylene vinylene) [poly(MEHPV-co-BPV)] with a different feed ratio of biphenyl group in the main chain were synthesized by α-elimination reaction. Poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene vinylene-alt-1,1′-biphenyl-4,4′-xylene vinylene) [poly(MEHPV-alt-BPV)], which has alternating repeat unit, and poly(1,8-octanedioxy-2-methoxy-,4-phenylene-1,2-ethenylene-,1′-biphenyl-4,4′-xylene-1,2-ethenylene-3-methoxy-1,4- phenylene)[poly(BFMP8-BPV)] and poly(1,12-dodecanedioxy-2-ethoxy-1,4-phenylene-1,2-ethenylene 1,1′-biphenyl-4,4′-xylene-1,2-ethene-3-thoxy-1,4-phenylene) [poly(BFMP12-BPV)] containing both conjugated and non-conjugated group in the main chain were synthesized by the Honer-Emmons reaction Single layer type light-emitting diode (LED)s were fabricated utilizing the prepared polymers as the emitting layer and their electrooptical properties were examined The solubility of poly(MEHPV-co-BPV)s in common organic solvents decreased rapidly with the increasing amount of BPV units in the copolymer. Emission spectrum of poly(MEHPV-co-BPV)s had two peaks corresponding to MEHPV (586 nm) and BPV (469, 495 nm) moiety, resp. However, LED fabricated with poly(MEHPV-alt-BPV) showed relatively sharp single peak (544 nm) in the middle of the two peaks. 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 polyphenylenevinylene synthesis electroluminescence luminescence, Physical Properties of Synthetic High Polymers: Physical Properties Of Polymers and other aspects.SDS of cas: 146370-51-6

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

On May 13, 2014, Choi, U. Hyeok; Liang, Siwei; O’Reilly, Michael V.; Winey, Karen I.; Runt, James; Colby, Ralph H. published an article.Name: 2-(2-(Vinyloxy)ethoxy)ethanol The title of the article was Influence of Solvating Plasticizer on Ion Conduction of Polysiloxane Single-Ion Conductors. And the article contained the following:

Lithium ion conduction is investigated for a polysiloxane-based single-ion conductor containing weak-binding borates and cyclic carbonate side chains, plasticized with poly(ethylene glycol) (PEG). The addition of PEG increases the conductivity by up to 3 orders of magnitude compared to the host ionomer. A phys. model of electrode polarization is used to sep. ionic conductivity of the ionomers into number d. of simultaneously conducting ions and their mobility. A reduction in Tg with increasing PEG content boosts ion mobility owing to an increase in polymer chain flexibility. Further, the PEG ether oxygens lower the activation energy of simultaneously conducting ions (from 14 to 8 kJ/mol), significantly increasing conducting ion content by 100X, suggesting that ion aggregates observed in the host ionomer are solvated by PEG. This directly reflects the disappearance of an ion aggregation peak observed in X-ray scattering, and an initial large increase in static dielec. constant (εs), upon addition of PEG, suggesting that ionic aggregation is significantly reduced by a small amount of PEG. Further dilution with lower dielec. constant PEG gradually reduces εs. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Name: 2-(2-(Vinyloxy)ethoxy)ethanol

The Article related to polysiloxane ion conductor conductivity solvating plasticizer effect, Physical Properties of Synthetic High Polymers: Physical Properties Of Polymers and other aspects.Name: 2-(2-(Vinyloxy)ethoxy)ethanol

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

On October 29, 1999, Xiao, Yang; Yu, Wang-Lin; Pei, Jian; Chen, Zhikuan; Huang, Wei; Heeger, Alan J. published an article.Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Conjugated copolymers of 2-methoxy-5-2′-ethyl-hexyloxy-1,4-phenylenevinylene and 2,5-dicyano-1,4-phenylenevinylene as materials for polymer light-emitting diodes. And the article contained the following:

A series of electroluminescent polymers was prepared, which incorporates segments of 2,5-dicyano-1,4-phenylenevinylene (DCN-PV) into the backbone of poly(2-methoxy-5-(2′-ethyl-hexyloxy)-p-phenylene vinylene) (MEH-PPV). The copolymers have optical properties similar to those of MEH-PPV. The oxidation potential of the copolymers is slightly larger than that of MEH-PPV. The copolymers exhibit pre-reduction processes, beginning at about -0.9 V (vs. SCE), before the main reduction processes. The pre-reduction feature promotes electron injection, consequently, it improves electroluminescence (EL) performance. The improved EL performance of the copolymers in comparison with MEH-PPV was demonstrated by a single-layer copolymer as emitter layer in a light-emitting diode (PLED) test device. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to dicyanophenylenevinylene copolymer preparation electroluminescence prereduction process, polyphenylenevinylene cyanophenylene substituent preparation conjugated polymer, Physical Properties of Synthetic High Polymers: Physical Properties Of Polymers and other aspects.Recommanded Product: 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

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