Category: 101-84-8

Safety of Diphenyl oxide. In 2019.0 NEW J CHEM published article about UPPER RIM; CALIXARENES; POLYSILOXANE; PERFORMANCE; DERIVATIZATION; AMINES in [Sun, Tao; Ren, Kaixin; Jiang, Xingxing; Chen, Haipeng; Hu, Shaoqiang] Luoyang Normal Univ, Coll Chem & Chem Engn, Henan Key Lab Funct Oriented Porous Mat, Luoyang 471934, Peoples R China; [Shuai, Xiaomin; Cai, Zhiqiang] Shenyang Univ Technol, Liaoning Prov Engn Res Ctr Fine Chem Engn Aromat, Sch Petrochem Engn, Liaoyang 111003, Liaoning, Peoples R China; [Bin, Li] Handan Univ, Hebei Key Lab Heterocycl Cpds, Handan 056005, Peoples R China in 2019.0, Cited 32.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Here, we report the first example of the utilization of p-nitro-tetradecyloxy-calix[4]arene (C4A-NO2) as a stationary phase for capillary gas chromatographic (GC) separations. The statically coated C4A-NO2 column exhibited a high column efficiency of 3815 plates per m and moderate polarity. The C4A-NO2 column was investigated for its separation performance and retention behaviours by utilizing a wide variety of isomer mixtures, covering alkylated benzenes and naphthalenes, alkenes, furans, alcohols, benzaldehydes, phenols and halogenated anilines. Importantly, the C4A-NO2 column exhibited high resolving capability for both aliphatic and aromatic isomers. Particularly, it displayed advantageous resolving capability over the commercial DB-17 column for halogenated aniline isomers. This work provides a good reference for designing calixarene derivatives as GC stationary phases, which is important for developing a family of stationary phases with specific selectivity.

Welcome to talk about 101-84-8, If you have any questions, you can contact Sun, T; Shuai, XM; Bin, L; Ren, KX; Jiang, XX; Chen, HP; Hu, SQ; Cai, ZQ or send Email.. Safety of Diphenyl oxide

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An article Metal-Free Synthesis of Benzothiophenes by Twofold C-H Functionalization: Direct Access to Materials-Oriented Heteroaromatics WOS:000487699900001 published article about INTERRUPTED PUMMERER REACTION; NUCLEOPHILIC ORTHO-ALLYLATION; TRIFLUOROMETHYLATING AGENTS; ORTHO-PROPARGYLATION; RAPID CONSTRUCTION; DIRECT ARYLATION; ARYL SULFOXIDES; BAY REGIONS; ARENES; HETEROARENES in [Yan, Jiajie; Pulis, Alexander P.; Perry, Gregory J. P.; Procter, David, I] Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England in 2019.0, Cited 94.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Name: Diphenyl oxide

Due to their ubiquity in nature and frequent use in organic electronic materials, benzothiophenes are highly sought after. Here we set out an unprecedented procedure for the formation of benzothiophenes by the twofold vicinal C-H functionalization of arenes that does not require metal catalysis. This one-pot annulation proceeds through an interrupted Pummerer reaction/[3,3]-sigmatropic rearrangement/cyclization sequence to deliver various benzothiophene products. The procedure is particularly effective for the rapid synthesis of benzothiophenes from non-prefunctionalized polyaromatic hydrocarbons (PAHs).

Name: Diphenyl oxide. Welcome to talk about 101-84-8, If you have any questions, you can contact Yan, JJ; Pulis, AP; Perry, GJP; Procter, DI or send Email.

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Safety of Diphenyl oxide. In 2021.0 ENVIRON RES published article about POLYBROMINATED DIPHENYL ETHERS; PERSISTENT ORGANIC POLLUTANTS; NORTHERN VIETNAM; RIVER SEDIMENTS; DECABROMODIPHENYL ETHANE; PCBS; PBDES; SYSTEM; SOILS; WATER in [Anh Quoc Hoang; Takahashi, Shin] Ehime Univ, Ctr Adv Technol Environm, Grad Sch Agr, 3-5-7 Tarumi, Matsuyama, Ehime 7908566, Japan; [Anh Quoc Hoang; Thi Ngoc Mai Pham; Thi Anh Huong Nguyen; Tri Manh Tran; Minh Binh Tu] Vietnam Natl Univ, Univ Sci, Fac Chem, 19 Le Minh Tong, Hanoi 10000, Vietnam; [Nhu Da Le; Thi Phuong Quynh Le] Vietnam Acad Sci & Technol, Inst Nat Prod Chem, Lab Environm Chem, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam; [Nhu Da Le; Thi Phuong Quynh Le] Vietnam Acad Sci & Technol, Grad Univ Sci & Technol, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam; [Thi Thuy Duong] Vietnam Acad Sci & Technol, Inst Environm Technol, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam; [Thi Mai Huong Pham] Hanoi Univ Ind, 298 Cau Dien, Hanoi 10000, Vietnam in 2021.0, Cited 70.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Comprehensive and updated information about polychlorinated biphenyls (PCBs) and brominated flame retardants (BFRs) in surface sediments from Hanoi, the capital city of Vietnam, is rather scarce. In this study, concentrations and profiles of 209 PCBs, 41 polybrominated diphenyl ethers (PBDEs), 2,2 ‘,4,4 ‘,5,5 ‘-hexabromobiphenyl (BB-153), hexabromocyclododecane (HBCD), pentabromoethylbenzene (PBEB), 1,2-bis(2,4,6tribromophenoxy)ethane (BTBPE), and decabromodiphenyl ethane (DBDPE) were determined in sediment samples collected from the Red River and some inner-city rivers of Hanoi. Concentrations (ng/g dry weight, median and range) of pollutants decreased in the order: DBDPE (28; not detected ND – 59) approximate to PCBs (27; 1.7-50) > PBDEs (23; 0.20-61) > HBCD (1.2; ND – 5.2) > BTBPE (0.46; ND – 3.6) > BB-153 (0.004; ND – 0.014) > PBEB (ND). Pollutant levels in the inner-city river sediments were about one to two orders of magnitude higher than those measured in the Red River main stream sediments. Tri-to hexa-CBs are major homologs but detailed profiles vary between individual samples, reflecting source and/or seasonal variations. CB-11 and CB-209 were found at higher proportions in sediments than in technical PCB mixtures, suggesting their novel sources from pigments. Deca-BDE and DBDPE are the most predominant BFRs with an increasing trend predicted for DBDPE. A preliminary ecological risk assessment was conducted for these pollutants in sediments. Total PCBs and deca-BDE in a few inner-city river sediments may exhibit adverse effects on benthic organisms, but no serious risk was estimated in general.

Welcome to talk about 101-84-8, If you have any questions, you can contact Hoang, AQ; Takahashi, S; Le, ND; Duong, TT; Pham, TMH; Pham, TNM; Nguyen, TAH; Tran, TM; Tu, MB; Le, TPQ or send Email.. Safety of Diphenyl oxide

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Recommanded Product: 101-84-8. In 2021.0 FIRE SAFETY J published article about DEGRADATION in [Ramgobin, Aditya; Fontaine, Gaelle; Bourbigot, Serge] Univ Lille, ENSCL, UMR 8207, UMET,Unite Mat & Transformat, F-59000 Lille, France in 2021.0, Cited 20.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

This article reports the thermal and fire behaviors of a high performance polymer, namely polyimide (PI). These behaviors were investigated using different techniques and tests, i.e., pyrolysis-Gas-Chromatography/MassSpectrometry (py-GC/MS) and TGA coupled with a Fourier Transform InfraRed spectrometer (TGA-FTIR), and mass loss cone (MLC) at different heat fluxes. It was observed that the thermal stability of PI strongly depends on the oxygen concentration. The main identified gases released during thermal degradation are: carbon dioxide, carbon monoxide, water and organic compounds (phenol, aniline, cyanobenzene, dicyanobenzene, 4-aminophenol, benzene, 2-(4-hydroxyphenyl)isoindoline-1,3-dione, phthalimide, dibenzofuran, and diphenylether). The ignition of PI in MLC experiment is observed under an external heat flux of 60 kW/m2. In that case, the peak of heat released by polyimide is only 30 kW/m2. Based on these investigations, a possible decomposition pathway of PI is proposed.

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Recommanded Product: Diphenyl oxide. In 2019.0 RUSS J PHYS CHEM A+ published article about N-BUTYLBENZENE; PYROLYSIS in [Shakun, V. A.; Nesterova, T. N.; Spiridonov, S. A.] Samara State Tech Univ, Samara, Russia; [Tarazanov, S., V] All Russian Res Inst Oil Refining, Moscow 111116, Russia in 2019.0, Cited 16.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

In the temperature range of 703-763 K, the thermal stability of 4-tert-butyl diphenyl oxide (4-TBDPO) has been studied, the components of the thermolysis reaction mass have been identified, a kinetic model of the process has been proposed, and the rate constants and parameters of the Arrhenius equation for all reactions under consideration have been calculated. The predominant role of isomerization transformations of 4-TBDPO has been found. A mechanism for the radical isomerization of the tert-butyl substituent has been proposed.

About Diphenyl oxide, If you have any questions, you can contact Shakun, VA; Nesterova, TN; Tarazanov, SV; Spiridonov, SA or concate me.. Recommanded Product: Diphenyl oxide

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Cossaboon, JM; Hoh, E; Chivers, SJ; Weller, DW; Danil, K; Maruya, KA; Dodder, NG in [Cossaboon, Jennifer M.; Hoh, Eunha; Dodder, Nathan G.] San Diego State Univ, Sch Publ Hlth, San Diego, CA 92182 USA; [Chivers, Susan J.; Weller, David W.; Danil, Kerri] NOAA, Southwest Fisheries Sci Ctr, La Jolla, CA 92037 USA; [Maruya, Keith A.] Southern Calif Coastal Water Res Project Author, Costa Mesa, CA 92626 USA; [Dodder, Nathan G.] San Diego State Univ, Res Fdn, San Diego, CA 92182 USA; [Cossaboon, Jennifer M.] UC Davis Sch Vet Med, Davis, CA 95616 USA published Apex marine predators and ocean health: Proactive screening of halogenated organic contaminants reveals ecosystem indicator species in 2019.0, Cited 46.0. SDS of cas: 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Despite decades-long bans on the production and use of certain chemicals, many halogenated organic compounds (HOCs) are persistent and can bioaccumulate in the marine environment with the potential to cause physiological harm to marine fauna. Highly lipid-rich tissue (e.g., marine mammal blubber) functions as a reservoir for HOCs, and selecting ideal indicator species is a priority for retrospective and proactive screening efforts. We selected five marine mammal species as possible indicators for the Southern California Bight (SCB) and applied a non-targeted analytical method paired with an automated data reduction strategy to catalog a broad range of known, known but unexpected, and unknown compounds in their blubber. A total of 194 HOCs were detected across the study species (n = 25 individuals), 81% of which are not routinely monitored, including 30 halogenated natural products and 45 compounds of unknown structure and origin. The cetacean species (long-beaked common dolphin, short-beaked common dolphin, and Risso’s dolphin) averaged 128 HOCs, whereas pinnipeds (California sea lion and Pacific harbor seal) averaged 47 HOCs. We suspect this disparity can be attributed to differences in life history, foraging strategies, and/or enzyme-mediated metabolism. Our results support proposing (1) the long- and short-beaked common dolphin as apex marine predator sentinels for future and retrospective biomonitoring of the SCB ecosystem and (2) the use of non-targeted contaminant analyses to identify and prioritize emerging contaminants. The use of a sentinel marine species together with the non-targeted analytical approach will enable a proactive approach to environmental contaminant monitoring. (C) 2019 Elsevier Ltd. All rights reserved.

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Category: ethers-buliding-blocks. I found the field of Chemistry very interesting. Saw the article Synthesis of Tetraarylethene Luminogens by C-H Vinylation of Aromatic Compounds with Triazenes published in 2020, Reprint Addresses Severin, K (corresponding author), Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, CH-1015 Lausanne, Switzerland.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide.

Tetraarylethenes are obtained by acid-induced coupling of vinyl triazenes with aromatic compounds. This new C-H activation route for the synthesis of aggregation-induced emission luminogens is simple, fast, and versatile. It allows the direct grafting of triarylethenyl groups onto a variety of aromatic compounds, including heterocycles, supramolecular hosts, biologically relevant molecules, and commercial polymers.

Welcome to talk about 101-84-8, If you have any questions, you can contact Suleymanov, AA; Doll, M; Ruggi, A; Scopelliti, R; Fadaei-Tirani, F; Severin, K or send Email.. Category: ethers-buliding-blocks

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An article Nanoporous phenanthroline polymer locked Pd as highly efficient catalyst for Suzuki-Miyaura Coupling reaction at room temperature WOS:000509524100018 published article about COVALENT ORGANIC FRAMEWORKS; PALLADIUM NANOPARTICLES; C-C; RECYCLABLE NANOCATALYST; REUSABLE CATALYST; HETEROGENEOUS CATALYST; FE3O4 NANOPARTICLES; GREEN SYNTHESIS; AQUEOUS-MEDIA; REDUCTION in [Chen, Jian; Zhang, Yan; Xie, Mingjiang] Huanggang Normal Univ, Hubei Key Lab Proc & Applicat Catalyt Mat, Huanggang 438000, Peoples R China; [Zhang, Ju; Li, Tao] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, 1037 Luoyu Rd, Wuhan 430074, Peoples R China in 2020.0, Cited 71.0. Product Details of 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Because of the intrinsic advantages, Suzuki coupling reactions have been one of the most popular coupling reactions in organic synthesis, however developing a high-performance heterogeneous catalyst for Suzuki coupling reactions in aqueous media at low temperature (e.g. room temperature) is still a challenge. Herein, a heterogeneous catalyst with coordinated Pd as active site and a designed conjugated phenanthroline based porous polymer (CPP) as support was fabricated. Systematically investigation on CPP support by Fourier transform infrared spectroscopy (FT-IR), Thermogravimetric analysis (TGA), Transmission electron microscopy (TEM), N-2 adsorption-desorption isotherm and Scanning electron microscopy (SEM) show that the derived CPP catalyst support owns a porous structure, moderately good surface area (141 m(2)/g) and an excellent thermal stability. As a heterogeneous catalyst for the synthesis of biphenyl derivatives via Suzuki coupling, Pd/CPP achieves an excellent catalytic performance and recycling ability towards Suzuki reaction of various reactants at room temperature in ethanol-water medium.

Product Details of 101-84-8. Bye, fridends, I hope you can learn more about C12H10O, If you have any questions, you can browse other blog as well. See you lster.

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An article Catalytic hydrogenolysis of lignin beta-O-4 aryl ether compound and lignin to aromatics over Rh/Nb2O5 under low H-2 pressure WOS:000528032800006 published article about C-O BONDS; SELECTIVE HYDRODEOXYGENATION; MODEL; PLATINUM; CLEAVAGE; HYDROGENATION; PHENOLS; ALUMINA; NICKEL; PD in [Guan, Weixiang; Chen, Xiao; Hu, Haoquan; Zhang, Jie; Liang, Changhai] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Lab Adv Mat & Catalyt Engn, Dalian 116024, Peoples R China; [Tsang, Chi-Wing] Technol & Higher Educ Inst Hong Kong, Fac Sci & Technol, 20A Tsing Yi Rd, Hong Kong, Peoples R China; [Lin, Carol Sze Ki] City Univ Hong Kong, Sch Energy & Environm, Kowloon Tong, Hong Kong, Peoples R China in 2020.0, Cited 41.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Product Details of 101-84-8

The increasing risk of fossil fuels depletion due to surging energy demand has accelerated the search of alternative renewable sources. Lignin, one of the major components of lignocellulosic biomass, is the only abundant renewable natural resource for aromatic compounds. In this work, the effects of metals and process parameters were discussed via the catalytic hydrogenolysis of beta-O-4 lignin model compound, 2-phenethyl phenyl ether. The best results were obtained over Rh/Nb2O5 with an overall conversion of 99.3% and exceptional selectivity of 98.9% to aromatic products when the hydrogenolysis was carried out at 260 degrees C and 0.1 MPa H-2 for 4 h. The high efficiency is mainly attributed to the cooperation between Rh and NbOx at the perimeter sites, in which Rh particles are responsible for the dissociation of H-2 and NbOx for activating CeO bonds. With respect to depolymerize of ash wood lignin, the liquid products were mostly aromatics over Rh/Nb2O5 under 0.1 MPa H-2. The results achieved in this work provide a promising prospect towards valorization of lignin into production of valuable aromatic compounds under low hydrogen pressure.

Product Details of 101-84-8. Welcome to talk about 101-84-8, If you have any questions, you can contact Guan, WX; Chen, X; Hu, HQ; Tsang, CW; Zhang, J; Lin, CSK; Liang, CH or send Email.

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I found the field of Environmental Sciences & Ecology; Toxicology very interesting. Saw the article Photodecomposition properties of brominated flame retardants (BFRs) published in 2020. Product Details of 101-84-8, Reprint Addresses Altarawneh, M (corresponding author), United Arab Emirates Univ, Dept Chem & Petr Engn, Sheikh Khabla bin Zayed St, Al Ain 15551, U Arab Emirates.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide

This study investigates the geometric and electronic properties of selected BFRs in their ground (S-0) and first singlet excited (S-1) states deploying methods of the density functional theory (DFT) and the time-dependent density functional theory (TDDFT). We estimate the effect of the S-0 -> S-1 transition on the elongations of the C-Br bond, identify the frontier molecular orbitals involved in the excitation process and compute partial atomic charges for the most photoreactive bromine atoms. The bromine atom attached to an who position in HBB (with regard to C-C bond; 2,2′,4,4′,6,6′-hexabromobiphenyl), TBBA (with respect to the hydroxyl group; 2,2′,6,6′-tetrabromobisphenol A), HBDE and BTBPE (in reference to C-O linkage; 2,2′,4,4′,6,6′-hexabromodiphenylether and 1,2-bis(2,4,6-tribromophenoxy)ethane, respectively) bears the highest positive atomic charge. This suggests that, these positions undergo reductive debromination reactions to produce lower brominated molecules. Debromination reactions ensue primarily in the aromatic compounds substituted with the highest number of bromine atoms owing to the largest stretching of the C-Br bond in the first excited state. The analysis of the frontier molecular orbitals indicates that, excitations of BFRs proceed via pi ->pi*, or pi ->sigma* or n ->sigma* electronic transitions. The orbital analysis reveals that, the HOMO-LUMO energy gap (EH-L) for all investigated brominesubstituted aromatic molecules falls lower (1.85-4.91 eV) than for their non-brominated analogues (3.39-8.07 eV), in both aqueous and gaseous media. The excitation energies correlate with the EH-L values. The excitation energies and EH-L values display a linear negative correlation with the number of bromine atoms attached to the molecule. Spectral analysis of the gaseous-phase systems reveals that, the highly brominated aromatics endure lower excitation energies and exhibit red shifts of their absorption bands in comparison to their lower brominated congeners. We attained a satisfactory agreement between the experimentally measured absorption peak (lambda(max)) and the theoretically predicted oscillator strength (lambda(max)) for the UV-Vis spectra. This study further confirms that, halogenated aromatics only absorb light in the UV spectral region and that effective photodegradation of these pollutants requires the presence of photocatalysts.

About Diphenyl oxide, If you have any questions, you can contact Saeed, A; Altarawneh, M; Siddique, K; Conesa, JA; Ortuno, N; Dlugogorski, BZ or concate me.. Product Details of 101-84-8

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