Category: 101-84-8

An article Palladium complexes of chalcogenoethanamine (S/Se) bidentate ligands: Applications in catalytic arylation of C-H and O-H bonds WOS:000540828300020 published article about N-HETEROCYCLIC CARBENE; COX-2 SELECTIVE INHIBITORS; COUPLING REACTIONS; NANO-PARTICLES; DIARYL ETHERS; ARYL HALIDES; REDUCTIVE ELIMINATION; DIRECT C5-ARYLATION; EFFICIENT CATALYST; IMIDAZOLES in [Bhatt, Ramprasad] Birla Inst Technol & Sci, Dept Chem, Pilani Campus, Pilani 333031, Rajasthan, India; [Sharma, Alpesh K.] Indian Inst Technol Delhi, Dept Chem, New Delhi 110016, India; [Himanshi; Joshi, Hemant] Cent Univ Rajasthan, Sch Chem Sci & Pharm, Dept Chem, ISC Lab, NH 8, Ajmer 305817, Rajasthan, India; [Bhuvanesh, Nattamai] Texas A&M Univ, Dept Chem, POB 30012, College Stn, TX 77842 USA in 2020, Cited 73. Category: ethers-buliding-blocks. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

This report describes the syntheses of N,E (E = S, Se) coordinated bidentate palladium complexes, by the reaction of N-(2-bromobenzyl)-2-(phenylthio/selanyl)ethanamine (3, 4) with [PdCl2(CH3CN)(2)]. The new ligands and palladium complexes were characterized by techniques like H-1, C-13{H-1} NMR, IR, and elemental analysis. The coordination modes of ligand with palladium precursor in complexes 5 and 6 were authenticated by single crystal X-ray diffraction. The complexes possess distorted square planar geometry around palladium center. Thermally robust and air stable complexes 5 and 6 were used as catalyst for regioselective arylation of imidazole and O-arylation of phenol. In case of regioselective arylation of imidazole, the reaction proceeds smoothly under mild reaction conditions, only 2.0 mol% of catalyst loading is required to achieve high yield (76-92%). This protocol is applicable to a broad substrate scope showing excellent tolerance towards different functional groups. Whereas for O-arylation of phenol also only 2.0 mol% catalyst loading is sufficient to give good yield (71-92%) with excellent tolerance towards a broad range of functional groups. Among sulfur and selenium coordinated ligands, selenium ligand coordinated complex, was found to outperform the catalytic reactions in both cases as compare to sulfur ligand. The mercury and triphenylphosphine poisoning tests suggest homogeneous nature of catalysis. (C) 2020 Elsevier Ltd. All rights reserved.

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Recommanded Product: 101-84-8. I found the field of Chemistry very interesting. Saw the article Organocatalyzed Birch Reduction Driven by Visible Light published in 2020.0, Reprint Addresses Miyake, GM (corresponding author), Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide.

The Birch reduction is a powerful synthetic methodology that uses solvated electrons to convert inert arenes to 1,4-cyclohexadienes-valuable intermediates for building molecular complexity. Birch reductions traditionally employ alkali metals dissolved in ammonia to produce a solvated electron for the reduction of unactivated arenes such as benzene (E-red < -3.42 V vs SCE). Photoredox catalysts have been gaining popularity in highly reducing applications, but none have been reported to demonstrate reduction potentials powerful enough to reduce benzene. Here, we introduce benzo[ghi]perylene imides as new organic photoredox catalysts for Birch reductions performed at ambient temperature and driven by visible light from commercially available LEDs. Using low catalyst loadings (<1 mol percent), benzene and other functionalized arenes were selectively transformed to 1,4-cyclohexadienes in moderate to good yields in a completely metal-free reaction. Mechanistic studies support that this unprecedented visible-light-induced reactivity is enabled by the ability of the organic photoredox catalyst to harness the energy from two visible-light photons to affect a single, high-energy chemical transformation. Recommanded Product: 101-84-8. Welcome to talk about 101-84-8, If you have any questions, you can contact Cole, JP; Chen, DF; Kudisch, M; Pearson, RM; Lim, CH; Miyake, GM or send Email.

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In 2019.0 BIORESOURCES published article about BROMINATED FLAME RETARDANTS; EPOXIDIZED SOYBEAN OIL; IN-HOUSE DUST; DI(2-ETHYLHEXYL)PHTHALATE DEHP; POLYCHLORINATED-BIPHENYLS; INHALATION TOXICITY; PLASTIC COMPOSITES; URINARY PHTHALATE; BREAST-MILK; METABOLITE CONCENTRATIONS in [Ulker, Ozge Cemiloglu] Ankara Univ, Sch Pharm, Dept Toxicol, TR-06100 Ankara, Turkey; [Ulker, Onur] Kirikkale Univ, Dept Interior Architecture & Environm Design, TR-71450 Kirikkale, Turkey in 2019.0, Cited 174.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. HPLC of Formula: C12H10O

Adhesives, flame-retardant chemicals, and paints are used in engineered wood products (EWPs) to increase some of the properties of wood. Most of the engineered wood composites, including plywood, particleboard, and fiberboard, used as furniture components contain formaldehyde resins as an adhesive. The International Agency for Research on Cancer (IARC) added formaldehyde to the list of human carcinogens (Group 1) in 2004. Flame-retardant chemicals are semi-volatile organic compounds that can migrate from the products to the air. There are developmental neurotoxic effects from flame-retardant additives, among which polybrominated diphenyl ethers (PBDEs) are commonly used in EWPs. The flexibility and durability of plastics are increased using phthalates, which are a class of synthetic chemicals, by adding them to the polyvinyl chloride (PVC) that is used in the wood-plastic composites (WPC). Formaldehyde, PBDEs, and phthalates are toxicants that are commonly present in value-added furniture products. This review summarized the toxic effects of these chemicals from the aspect of human health and from the perspective of green products.

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Quality Control of Diphenyl oxide. In 2019.0 ENVIRON SCI-PROC IMP published article about PERSISTENT ORGANIC POLLUTANTS; POLYCHLORINATED-BIPHENYLS; POTENTIAL SOURCES; SEASONAL TRENDS; AMBIENT AIR; SAMPLERS; PCBS; ATMOSPHERE; CALIBRATION; PBDES in [Kalina, Jiri; White, Kevin B.; Scheringer, Martin; Pribylova, Petra; Kukucka, Petr; Audy, Ondrej; Klanova, Jana] Masaryk Univ, Fac Sci, RECETOX Ctr, Kamenice 753-5, Brno 62500, Czech Republic; [Scheringer, Martin] Swiss Fed Inst Technol, Inst Biogeochem & Pollutant Dynam, CH-8092 Zurich, Switzerland in 2019.0, Cited 52.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

The comparability of data from active (ACT) and passive sampling (PAS) of persistent organic pollutants (POPs) in air is hindered by uncertainties related to the derivation of sampling rates and concentrations, as well as differences in the duration, volume and frequency of sampling. Although data from ACT have been used extensively in short-term PAS calibration studies, no attempts have been made to evaluate the comparability of long-term trends calculated from PAS to established ACT trends. This is crucial, as continuous long-term ACT is unfeasible in most regions of the world. To address these challenges, we calculated and compared trends for organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) at the six sites in Europe with at least 5 years of co-located ACT and PAS data (2012-2016): Birkenes, Kosetice, Pallas, Rao, Storhofoi and Zeppelin. Strong agreement of ACT and PAS trends was observed for most OCPs and PCBs. Apart from two PCBs at Storhofoi, all pairs of ACT and PAS trends followed the same direction. However, differences in the magnitude, significance and confidence intervals of their slopes were observed for some compounds and were primarily attributed to the short duration of the PAS time series. Despite some limitations, our results suggest that the comparability of ACT and PAS POP trends will continue to improve with additional years of data. This study confirms the suitability of PAS for the calculation of long-term POP trends in air, and highlights the importance of continuous sampling at established monitoring sites with consistent analytical methods.

Quality Control of Diphenyl oxide. 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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Application In Synthesis of Diphenyl oxide. Authors Martinez-Merino, P; Midgley, SD; Martin, EI; Estelle, P; Alcantara, R; Sanchez-Coronilla, A; Grau-Crespo, R; Navas, J in AMER CHEMICAL SOC published article about in [Martinez-Merino, Paloma; Alcantara, Rodrigo; Navas, Javier] Univ Cadiz, Fac Ciencias, Dept Quim Fis, E-11510 Puerto Real, Spain; [Midgley, Scott D.; Grau-Crespo, Ricardo] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England; [Martin, Elisa I.; Sanchez-Coronilla, Antonio] Univ Seville, Fac Quim, Dept Ingn Quim, E-41012 Seville, Spain; [Martin, Elisa I.; Sanchez-Coronilla, Antonio] Univ Seville, Fac Farm, Dept Quim Fis, E-41012 Seville, Spain; [Estelle, Patrice] Univ Rennes, LGCGM, EA3913, F-35000 Rennes, France in 2020.0, Cited 0.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Nano-colloidal suspensions of nanomaterials in a fluid, nanofluids, are appealing because of their interesting properties related to heat transfer processes. While nanomaterials based on transition metal chalcogenides (TMCs) have been widely studied in catalysis, sensing, and energy storage applications, there are few studies of nanofluids based on TMCs for heat transfer applications. In this study, the preparation and analysis of nanofluids based on 2D-WS2 in a typical heat transfer fluid (HTF) used in concentrating solar power (CSP) plants are reported. Nanofluids prepared using an exfoliation process exhibited well-defined nanosheets and were highly stable. The nanofluids were characterized in terms of properties related to their application in CSP. The presence of WS2 nanosheets did not modify significantly the surface tension, the viscosity, or the isobaric specific heat, but the thermal conductivity was improved by up to 30%. The U-r factor, which characterizes the thermal efficiency of the fluid in the solar collector, shows an enhancement of up to 22% in the nanofluid, demonstrating great promise for CSP applications. The Reynolds number and friction factor of the fluid were not significantly modified by the addition of the nanomaterial to the HTF, which is also positive for practical applications in CSP plants. Ab initio molecular dynamics simulations of the nanoparticle/fluid interface showed an irreversible dissociative adsorption of diphenyl oxide molecules on the WS2 edge, with very low kinetic barrier. The resulting decoration of the WS2 edge dramatically affects the nature of the interface interactions and is therefore expected to affect significantly the rheological and transport properties of the nanofluids.

Welcome to talk about 101-84-8, If you have any questions, you can contact Martinez-Merino, P; Midgley, SD; Martin, EI; Estelle, P; Alcantara, R; Sanchez-Coronilla, A; Grau-Crespo, R; Navas, J or send Email.. Application In Synthesis of Diphenyl oxide

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An article The complex issue of chemicals and microplastic pollution: A case study in North Pacific lanternfish WOS:000466618000102 published article about POLYBROMINATED DIPHENYL ETHERS; PERSISTENT ORGANIC POLLUTANTS; PLASTIC DEBRIS; TOXIC-CHEMICALS; MARINE DEBRIS; FISH; ENVIRONMENT; BIOACCUMULATION; ACCUMULATION; NONYLPHENOL in [Gassel, Margy] Calif Environm Protect Agcy, Off Environm Hlth Hazard Assessment, Sacramento, CA 95812 USA; [Rochman, Chelsea M.] Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON M5S 3B2, Canada in 2019.0, Cited 62.0. Safety of Diphenyl oxide. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Marine plastic debris, including microplastics (<5 mm in size), comprises a suite of chemical ingredients and sorbed chemical contaminants. Thus, microplastics are a potential, and debated, source of anthropogenic chemicals for bioaccumulation and biomagnification. Several studies have investigated the role of microplastics as a vector of contaminants to marine organisms via modeling exercises, laboratory experiments, and field studies. Here, we examined relationships among chemical contaminants and microplastics in lanternfish (family Myctophidae), an important link in marine food webs, from the North Pacific Ocean as a case study from the field. We compared the body burden of several chemical groups (bisphenol A [BPA], nonylphenol [4-NP], octylphenol [4n-OP], alkylphenol ethoxylates [APEs], pesticides, polychlorinated biphenyls [PCBs], and polybrominated diphenyl ethers [PBDEs]) in fish caught within and outside the North Pacific Subtropical Gyre where plastic is known to accumulate. We also tested whether there was a relationship between chemical concentrations in fish and plastic density at each sampling location. Mean concentrations of common plastic constituents (BPA, 4-NP, 4n-OP, APEs, and total PBDEs) were comparable between myctophids collected within and outside the North Pacific Gyre. Pesticides were higher in lanternfish caught outside the gyre and were associated with lower plastic density. Total PCBs were also higher in fish outside the gyre. In contrast, lower chlorinated PCB congeners were higher in fish residing in the accumulation zone and were correlated with higher plastic density. This finding is consistent with other studies demonstrating an association between lower chlorinated PCBs and plastics in biota and suggests that microplastic may be a transport mechanism for some chemicals in nature. (C) 2019 Elsevier Ltd. All rights reserved. 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.. Safety of Diphenyl oxide

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Authors Li, GR; Yu, WQ; Xiao, ZJ; Long, M; Tong, LY; Qiu, Y in SPRINGER INTERNATIONAL PUBLISHING AG published article about SOLID-PHASE EXTRACTION; BISPHENOL-A; TRISILOXANE SURFACTANTS; N-METHYL-2-PYRROLIDONE; NONYLPHENOL; PERFORMANCE; TRICLOSAN; CHILDREN; URINE; FOODS in [Li, Genrong; Yu, Wenqin; Xiao, Zhaojing; Long, Mei; Tong, Lanyan; Qiu, Yue] Chongqing Acad Metrol & Qual Inspect, Chongqing 401123, Peoples R China; [Li, Genrong; Yu, Wenqin; Xiao, Zhaojing; Long, Mei; Tong, Lanyan; Qiu, Yue] Inspect Agr Proc Prod & Condiments, Chongqing 401123, Peoples R China in 2020.0, Cited 29.0. Recommanded Product: 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

A rapid, sensitive, and practical QuEChERS method coupled with gas chromatography-mass spectrometry was developed for the simultaneous determination of 16 chemical adjuvant residues in samples of fruits (apple, nectarine, grape) and vegetables (tomato, cucumber, spinach). All target compounds were separated in less than 16 min. Samples were extracted with acetonitrile, and the types of extraction salt and cleanup sorbent were optimized. The optimized method was validated by evaluating the linearity, accuracy, precision, and matrix effect. The recoveries of the 16 pesticides adjuvants ranged from 61.2 to 116.3% with relative standard deviations lower than 11.6%. Limits of detection ranged from 0.21 to 3.02 mu g/kg, and limits of quantification ranged from 0.71 to 10.07 mu g/kg. Finally, the developed method was successfully employed to identify and quantify pesticide adjuvant residues in the analysis of 30 real fruit and vegetable samples.

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In 2019.0 CHINESE J CHEM ENG published article about VAPOR-LIQUID-EQUILIBRIA; PLUS PROPANE SYSTEM; VAN-DER-WAALS; BINARY-MIXTURES; PHASE-EQUILIBRIUM; PURE COMPOUNDS; M-XYLENE; VOLUME TRANSLATION; P-XYLENE; 333.15 K in [Ghoderao, Pradnya N. P.; Narayan, Mohan] Inst Chem Technol, Dept Phys, Mumbai 400019, Maharashtra, India; [Dalvi, Vishwanath H.] Inst Chem Technol, Dept Chem Engn, Mumbai 400019, Maharashtra, India in 2019.0, Cited 73.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. HPLC of Formula: C12H10O

A four-parameter, Ghoderao-Dalvi-Narayan 2 cubic equation of state (GDN2 CEOS), is presented which incorporates the following: 1. The experimental value of the critical compressibility factor has been used as a fixed input parameter for calculations; 2. All the parameters (a, b, c, d) of CEOS are temperature dependent functions in the subcritical region and arc temperature independent functions in the supercritical region and; 3. A new a function is introduced with two compound specific parameters which are estimated by matching saturated vapor pressure at two fixed temperature points T-r = 0.5, 0.7. Our formalism enables us to cast three of the four parameters of the CEOS as a function of the remaining parameter. The proposed CEOS is used to predict properties of 334 pure compounds, including saturated vapor pressure and liquid density, compressed liquid density, heat capacities at the constant pressure and volume, enthalpy of vaporization, sound velocity. To calculate thermodynamic properties of a pure compound, the present CEOS require the critical temperature, the critical pressure, the Pitzer’s acentric factor, the critical compressibility factor, and two parameters of the alpha function. The saturated liquid density predictions for pure fluids are very accurate when compared with GDN1 (Ghoderao-Dalvi-Narayan 1), MPR (Modified Peng-Robinson), and PT (Patel-Teja) equations of state. Unlike MPR EOS, the proposed temperature dependent covolume parameter b in the present work satisfies all the constraints mentioned in the literature to avoid thermodynamic inconsistencies at the extreme temperature and pressure. Using van der Waals one-fluid mixing rule, the present CEOS is further used to predict bubble pressure and the vapor mole fraction of binary mixtures. (C) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.

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Recommanded Product: Diphenyl oxide. Authors Wu, J; Qi, JF; Lin, YM; Chen, Y; Zhang, X; Wu, RL; Wang, HP in AMER CHEMICAL SOC published article about in [Qi, Jiefei; Lin, Yiming; Chen, Yong; Zhang, Xu; Wu, Rongliang; Wang, Huaping] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Coll Mat Sci & Engn, Shanghai 201620, Peoples R China; [Wu, Jing; Wang, Huaping] Donghua Univ, Coinnovat Ctr Text Ind, Innovat Ctr Text Sci & Technol, Shanghai 201620, Peoples R China in 2021.0, Cited 63.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Isohexides are versatile carbohydrate-based building blocks for designing biodegradable polymers with tunable biodegradability and enhanced material properties owing to their unique high structural rigidity and hydrophilicity. However, the limited reactivity and thermal stability of isohexides, especially the isomers with endo-hydroxyl groups, hamper their practical applications. In this work, fully aliphatic copolyesters based on two isohexide stereoisomers, isosorbide (IS) and isomannide (IM), were comparatively synthesized via a mild lipase-catalyzed polymerization [enzymatic polymerization (EP)] technique. The products were obtained with fairly high molecular weights (M-n values: 15,300-31,500 g.mol(-1)), negligible degree of discoloration, and 20-40 degrees C higher thermal stabilities (T-d,T-5% : 335-360 degrees C) compared to those of their counterparts obtained by melt polymerization (MP). Molecular dynamics (MD) simulation revealed that the endo-OH is preferred to the exo-OH under the EP process having a high hydrogen-bonding frequency with the catalytic site of CALB (lipase immobilized from Candida antarctica, CALB), and it also requires considerably low energy (70-100 kJ.mol(-1)) to form the second tetrahedral transition-state intermediates. The wide-angle X-ray diffraction (WAXD) study further elucidates the interesting influence of the EP process on inducing specific beta-type crystalline structures.

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Name: Diphenyl oxide. Liu, L; Nevado, C in [Liu, Le; Nevado, Cristina] Univ Zurich, Dept Chem, CH-8057 Zurich, Switzerland published Diaryl Ether Formation Merging Photoredox and Nickel Catalysis in 2021.0, Cited 70.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Photoredox and Ni catalysis are combined to produce diaryl ethers under mild conditions. A broad range of aryl halides and phenol derivatives are cross-coupled in the presence of a readily available organic photocatalyst and NiBr2 (dtbpy). Symmetrical diaryl ethers have also been directly obtained from aryl bromides in the presence of water. Mechanistic investigations support the involvement of Ni(0) species at the outset of the reaction and a Ni(II)/Ni(III)-photocatalyzed single electron transfer process preceding the productive C(sp(2))-OAr reductive elimination.

Name: Diphenyl oxide. Welcome to talk about 101-84-8, If you have any questions, you can contact Liu, L; Nevado, C or send Email.

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