Category: 90-44-8

Gao, P; Xu, M; Liu, YL; da Silva, EB; Xiang, P; Ma, LNQ in [Gao, Peng; da Silva, Evandro B.; Xiang, Ping; Ma, Lena Q.] Southwest Forestry Univ, Inst Environm Remediat & Human Hlth, Kunming 650224, Yunnan, Peoples R China; [Gao, Peng; Xu, Min; da Silva, Evandro B.; Ma, Lena Q.] Univ Florida, Soil & Water Sci Dept, Gainesville, FL 32611 USA; [Xu, Min] Sichuan Agr Univ, Coll Environm Sci, Chengdu 611130, Sichuan, Peoples R China; [Liu, Yalan] Univ Florida, Dept Environm Engn Sci, Gainesville, FL 32611 USA published Emerging and legacy PAHs in urban soils of four small cities: Concentrations, distribution, and sources in 2019, Cited 20. Product Details of 90-44-8. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8.

Polycyclic aromatic hydrocarbons (PAHs) are widespread organic contaminants in the environment, much being accumulated in soils. Although their concentrations in large cities have been studied, their levels in small cities were less studied. This study determined the concentrations, distributions, and sources of 16 USEPA priority PAHs (legacy PAHs) and 6 emerging PAHs in urban soils of four small cities. A total of 100 soil samples were collected in Florida, USA. The average Sigma 16-PAHs in urban soils of Clay county, Ocala, Pensacola, and West Palm Beach were 1821, 2748, 3115 and 4055 mu g kg(-1), respectively. Based on benzo[a]pyrene-equivalent (BaP-EQ), the 7 USEPA carcinogenic PAHs (7cPAHs) and 3 emerging carcinogenic PAHs (3cPAHs) in urban soils in Clay County averaged 223 and 3703, Ocala 319 and 4521, Pensacola 302 and 5423, and West Palm Beach 449 and 5916 mu g kg(-1), respectively. Although Sigma 7cPAHs in 87-89% of samples were lower than the Florida Soil Cleanup Target Levels (FSCTLs) for industrial sites at 700 mu g kg(-1), Sigma 3cPAHs were 13-18 times greater than Sigma 7cPAHs. Based on the PMF model and molecular diagnostic ratios, soil PAHs were dominated by similar sources in small cities, mainly from pyrogenic sources including biomass, coal and coke combustion and vehicle emissions. It is important to evaluate both legacy and emerging PAHs concentrations in urban soils when considering soil remediation and human health risk assessment. (C) 2019 Published by Elsevier B.V.

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SDS of cas: 90-44-8. In 2020 J AM CHEM SOC published article about SINGLET OXYGEN; GENERATION; DERIVATIVES; MECHANISMS; SHUTTLES in [Li, Wei-Jian; Xu, Lin; Wang, Xu-Qing; Wang, Wei; Yin, Guang-Qiang; Zhang, Dan-Yang; Yang, Hai-Bo] East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China; [Li, Wei-Jian; Xu, Lin; Wang, Xu-Qing; Wang, Wei; Yin, Guang-Qiang; Zhang, Dan-Yang; Yang, Hai-Bo] East China Normal Univ, Sch Chem & Mol Engn, Chang Kung Chuang Inst, Shanghai 200062, Peoples R China; [Hu, Zhubin; Sun, Zhenrong; Sun, Haitao] East China Normal Univ, Sch Phys & Elect Sci, State Key Lab Precis Spect, Shanghai 200241, Peoples R China; [Yin, Guang-Qiang; Li, Xiaopeng] Shenzhen Univ, Coll Chem & Environm Engn, Shenzhen 518055, Peoples R China in 2020, Cited 86. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8.

During the past few decades, fabrication of functional rotaxane-branched dendrimers has become one of the most attractive yet challenging topics within supramolecular chemistry and materials science. Herein, we present the successful fabrication of a family of new rotaxane-branched dendrimers containing up to 21 platinum atoms and 42 photosensitizer moieties through an efficient and controllable divergent approach. Notably, the photosensitization efficiencies of these rotaxane-branched dendrimers gradually increased with the increase of dendrimer generation. For example, third-generation rotaxane-branched dendrimer PG3 revealed 13.3-fold higher O-1(2) generation efficiency than its corresponding monomer AN. The enhanced O-1(2) generation efficiency was attributed to the enhancement of intersystem crossing (ISC) through the simple and efficient incorporation of multiple heavy atoms and photosensitizer moieties on the axles and wheels of the rotaxane units, respectively, which has been validated by UV-visible and fluorescence techniques, time-dependent density functional theory calculations, photolysis model reactions, and apparent activation energy calculations. Therefore, we develop a new promising platform of rotaxane-branched dendrimers for the preparation of effective photosensitizers.

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Reference:
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Authors Pencikova, K; Ciganek, M; Neca, J; Illes, P; Dvorak, Z; Vondracek, J; Machala, M in ELSEVIER SCIENCE BV published article about ARYL-HYDROCARBON RECEPTOR; POLYCYCLIC AROMATIC-HYDROCARBONS; ESTROGEN-RECEPTOR; CELL-LINE; IN-VITRO; PARTICULATE MATTER; EPITHELIAL-CELLS; DNA-DAMAGE; ACTIVATION; EXPOSURE in [Pencikova, Katerina; Ciganek, Miroslav; Neca, Jiri; Machala, Miroslav] Vet Res Inst, Dept Chem & Toxicol, Hudcova 70, Brno 62100, Czech Republic; [Illes, Peter; Dvorak, Zdenek] Palacky Univ, Fac Sci, Dept Cell Biol & Genet, Slechtitelu 27, Olomouc 78371, Czech Republic; [Vondracek, Jan] Czech Acad Sci, Inst Biophys, Dept Cytokinet, Kralovopolska 135, Brno 61265, Czech Republic in 2019, Cited 65. Recommanded Product: 90-44-8. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8

Organic pollutants associated with diesel exhaust particles (DEP), such as polycyclic aromatic hydrocarbons (PAHs) and their derivatives, may negatively impact human health. However, a comprehensive overview of their effects on endocrine nuclear receptor activities is still missing. Here, we evaluated the effects of extracts and chromatographic fractions (fractionated according to increasing polarity) of two standard reference materials derived from distinct types of diesel engines (SRM 2975, SRM 1650b), on activation of androgen receptor (AR), estrogen receptor alpha (ER alpha), peroxisome proliferator-activated receptor gamma (PPAR gamma), glucocorticoid receptor (GR) and thyroid receptor alpha (TR alpha), using human cell-based reporter gene assays. Neither DEP standard modulated AR or GR activities. Crude extracts and fractions of SRM 1650b and SRM 2975 suppressed ER alpha-mediated activity in the ER-CALUX (TM) assay; however, this effect could be partly linked to their cytotoxicity in this cell line. We observed that only SRM 2975 extract and its fractions were partial PPAR gamma inducers, while SRM 1650b extract was not active towards this receptor. Importantly, we found that both extracts and polar fractions of SRM activated TR alpha and significantly potentiated the activity of endogenous TR alpha ligand, triiodothyronine. Based on a detailed chemical analysis of both extracts and their polar fractions, we identified several oxygenated PAH derivatives, that were present at relatively high levels in the analyzed DEP standards, including 3-nitrobenzanthrone (3-NBA), anthracene-9,10-dione, phenanthrene-9,10-dione. 9H-fluoren-9-one or benzo[a] anthracene-7,12-dione, to activate TR alpha activity. Nevertheless, these compounds provided only a minor contribution to the overall TR alpha activity identified in polar fractions. This suggests that yet unidentified polar polyaromatic compounds associated with DEP may, apart from their known impact on the aryl hydrocarbon receptor or steroid signaling, deregulate activities of additional nuclear receptors, in particular of TR alpha. This illustrates the need to better characterize endocrine disrupting activities of DEP. (C) 2019 Elsevier B.V. All rights reserved.

Welcome to talk about 90-44-8, If you have any questions, you can contact Pencikova, K; Ciganek, M; Neca, J; Illes, P; Dvorak, Z; Vondracek, J; Machala, M or send Email.. Recommanded Product: 90-44-8

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Thiomorpholine – Wikipedia,
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COA of Formula: C14H10O. Abdelkawy, MA; Aly, EA; El-Badawi, MA; Itsuno, S in [Abdelkawy, Mahmoud A.; Itsuno, Shinichi] Toyohashi Univ Technol, Dept Appl Chem & Life Sci, Toyohashi, Aichi 4418580, Japan; [Abdelkawy, Mahmoud A.; Aly, El-Saied A.; El-Badawi, Mahmoud A.] Tanta Univ, Fac Sci, Chem Dept, Tanta 31527, Egypt published Synthesis of Cinchona Urea Polymers and Their Evaluation as Catalyst in the Asymmetric Reactions in 2020, Cited 25. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8.

Chiral polyureas of cinchona alkaloids were synthesized via repetitive Mizoroki-Heck (MH) coupling reaction. The Pd-catalyzed polycondensation of cinchona urea dimers6and aromatic diiodide7afforded the chiral polyureas (P1-P4). The catalytic activity of the chiral polymers was subsequently investigated. The asymmetric Michael addition of ketoesters to nitroolefins was successfully catalyzed by the polymeric organocatalysts (P1-P4) to give the corresponding Michael adducts with high catalytic activities and excellent enantionselectivities (up to >99% ee). The polymeric catalysts were insoluble in commonly used organic solvents. They were easily recovered and reused several times without any loss of the catalytic activity.

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Thiomorpholine – Wikipedia,
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Weddeling, JH; Vishnevskiy, YV; Neumann, B; Stammler, HG; Mitzel, NW in [Weddeling, Jan-Henrik; Vishnevskiy, Yury V.; Neumann, Beate; Stammler, Hans-Georg; Mitzel, Norbert W.] Univ Bielefeld, Lehrstuhl Anorgan Chem & Strukturchem, Fak Chem, Univ Str 25, D-33615 Bielefeld, Germany published Inter- and Intramolecular Aryl-Aryl Interactions in Partially Fluorinated Ethylenedioxy-bridged Bisarenes** in 2020, Cited 55. Application In Synthesis of Anthrone. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8.

Several ethylenedioxy-bridged bisarenes with a variety of type and number of aryl groups were synthesized to study non-covalent dispersion-driven inter- and intramolecular aryl-aryl interactions in the solid state and gas phase. Intramolecular interactions are preferably found in the gas phase. DFT calculations with and without dispersion correction show larger interacting aromatic groups increase the stabilization energy of folded conformers and decrease the intermolecular centroid-centroid distance. Single-molecule structures generally adopt folded conformations with short intramolecular aryl-aryl contacts. Gas electron diffraction experiments were performed exemplarily for 1-(pentafluorophenoxy)-2-(phenoxy)ethane. A new procedure for structure refinement was developed to deal with the conformational complexity of such molecules. The results are an experimental confirmation of the existence of folded conformations of this molecule with short intramolecular aryl-aryl distances in the gas phase. Solid-state structures are dominated by stretched structures without intramolecular aryl-aryl interactions but interactions with neighboring molecules.

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Thiomorpholine – Wikipedia,
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In 2019 ENVIRON SCI POLLUT R published article about PAHS; BEHAVIOR in [Qiao, Meng; Fu, Lujing; Cao, Wei; Bai, Yaohui; Zhao, Xu] Chinese Acad Sci, Key Lab Drinking Water Sci & Technol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China; [Huang, Qiuxin] Minist Ind & Informat Technol, CEPREI Environm Assessment & Monitoring Ctr, Elect Res Inst 5, Guangzhou 510610, Guangdong, Peoples R China; [Zhao, Xu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China in 2019, Cited 28. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8. SDS of cas: 90-44-8

Ecological wastewater treatment plant (EWWTP), a kind of emerging wastewater treatment plant (WWTP) in recent years, combined microbiology with botany which is efficient for the removal of nitrogen and organic matter, as well as deodorization. The occurrence and removal of micro-organic pollutants in EWWTPs were still not well known. Polycyclic aromatic hydrocarbons (PAHs) and their typical derivatives (SPAHs) including the oxygenated PAHs (OPAHs), chlorinated PAHs (ClPAHs), and methyl PAHs (MPAHs) were investigated in an EWWTP in Guangdong Province, China. The concentrations of the sigma 6 OPAHs (114-384ng/L) were higher than the sigma 16 PAHs (92-250ng/L), and much higher than the sigma 4 MPAHs (13-64ng/L) and sigma 9 ClPAHs (2-3ng/L) in the EWWTP and the effluent receiving river. The total removal efficiencies of the PAHs, OPAHs, MPAHs, and ClPAHs in the EWWTP (43 +/- 14%, 41 +/- 7%, 55 +/- 16%, and 18 +/- 4%) were lower than the traditional WWTPs, probably due to the lower concentration of the sludge in the ecological treatment. The advanced treatment process (microfiltration and UV disinfection treatment) contributed much less (0-20%) to the whole removal efficiency than the ecological treatment (80-100%). The effluent from the EWWTP slightly reduced the PAHs and SPAHs concentrations in the receiving river. The high concentrations of the PAHs and SPAHs in the receiving river were similar to the influent of the EWWTP, indicating that some untreated wastewater was directly discharged to the river, especially in the upstream.

SDS of cas: 90-44-8. Welcome to talk about 90-44-8, If you have any questions, you can contact Qiao, M; Fu, LJ; Cao, W; Bai, YH; Huang, QX; Zhao, X or send Email.

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An article Stoichiometric Formation of an Oxoiron(IV) Complex by a Soluble Methane Monooxygenase Type Activation of O-2 at an Iron(II)-Cyclam Center WOS:000526393700003 published article about METAL-OXO; NONHEME; REACTIVITY; OXIDATION; DIOXYGEN; INTERMEDIATE; AUTOXIDATION; H2O2 in [Kass, Dustin; Corona, Teresa; Warm, Katrin; Braun-Cula, Beatrice; Ray, Kallol] Humboldt Univ, Inst Chem, D-12489 Berlin, Germany; [Kuhlmann, Uwe; Hildebrandt, Peter] Tech Univ Berlin, Dept Chem, D-10623 Berlin, Germany; [Bill, Eckhard] Max Planck Inst Chem Energiekonvers, D-45470 Mulheim, Germany; [Mebs, Stefan; Dau, Holger; Haumann, Michael] Free Univ Berlin, Dept Phys, D-14195 Berlin, Germany; [Swart, Marcel] ICREA, Barcelona 08010, Spain; [Swart, Marcel] Univ Girona, IQCC, Girona 17003, Spain in 2020, Cited 38. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8. SDS of cas: 90-44-8

In soluble methane monooxygenase enzymes (sMMO), dioxygen (O-2) is activated at a diiron(II) center to form an oxodiiron(IV) intermediate Q that performs the challenging oxidation of methane to methanol. An analogous mechanism of O-2 activation at mono- or dinuclear iron centers is rare in the synthetic chemistry. Herein, we report a mononuclear non-heme iron(II)cyclam complex, 1-trans, that activates O-2 to form the corresponding iron(IV)-oxo complex, 2-trans, via a mechanism reminiscent of the O-2 activation process in sMMO. The conversion of 1-trans to 2-trans proceeds via the intermediate formation of an iron(III)-superoxide species 3, which could be trapped and spectroscopically characterized at -50 degrees C. Surprisingly, 3 is a stronger oxygen atom transfer (OAT) agent than 2-trans; 3 performs OAT to 1-trans or PPh 3 to yield 2-trans quantitatively. Furthermore, 2-trans oxidizes the aromatic C-H bonds of 2,6-di-tert-butylphenol, which, together with the strong OAT ability of 3, represents new domains of oxoiron(IV) and superoxoiron(III) reactivities.

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Thiomorpholine – Wikipedia,
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Authors Sharma, H; Sharma, S; Sharma, C; Paul, S; Clark, JH in ELSEVIER SCIENCE BV published article about HIGHLY EFFICIENT; CATALYST; SUZUKI; REDUCTION; NANOPARTICLES; NANOCATALYSTS; HECK; NITROAROMATICS; NANOCOMPOSITE; COMPOSITE in [Sharma, Harsha; Sharma, Shally; Sharma, Chandan; Paul, Satya] Univ Jammu, Dept Chem, Jammu 180006, Jammu & Kashmir, India; [Clark, James H.] Univ York, Dept Chem, Green Chem Ctr Excellence, York YO10 5DD, N Yorkshire, England in 2019, Cited 50. Application In Synthesis of Anthrone. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8

We report the synthesis of inexpensive and environmentally benign cobalt(0) nanoparticles on L-3,4-dihydroxyphenylalanine (L-dopa) functionalized and magnetite (Fe3O4) grafted graphene oxide (Co@GO/Fe3O4/L-dopa) which was fully characterized with different techniques such as Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HR-TEM), X-Ray Photoelectron Spectroscopy (XPS), X-ray Powder Diffraction (XRD), Thermogravimetric analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR), Vibrating Sample Magnetometer (VSM), Carbon Hydrogen Nitrogen (CHN) analysis, Energy Dispersive X-ray (EDX) and Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). Graphene oxide was used as the core material due to its mechanical, electrical and thermal properties. In order to avoid the cumbersome process of separation, magnetite nanoparticles were coated over the graphene oxide. After the successful preparation of graphene oxide based magnetic nanoparticles, L-dopa was grafted over Fe3O4 nanoparticles so as to provide firm anchoring agent for cobalt nanoparticles. Finally, cobalt(0) nanoparticles were immobilized on the developed magnetic support. The catalytic efficiency of the synthesized catalyst was tested for Suzuki cross-coupling and oxidation reactions, usually carried out by precious and expensive second and third row transition metals; products were obtained in good to excellent yields. The synthesized catalyst represents an attractive alternative to conventional catalysts for Suzuki cross-coupling and oxidation reactions, and is recyclable up to five runs.

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Thiomorpholine – Wikipedia,
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An article 2-Iodoxybenzoic acid ditriflate: the most powerful hypervalent iodine(v) oxidant WOS:000474265200004 published article about X-RAY-STRUCTURE; 2-IODOXYBENZENESULFONIC ACID; REACTIVITY; BEARING in [Yusubov, Mekhman S.; Soldatova, Natalia S.; Postnikov, Pavel S.; Valiev, Rashid R.; Yoshimura, Akira] Tomsk Polytech Univ, Tomsk 634050, Russia; [Valiev, Rashid R.] Tomsk State Univ, Tomsk 634050, Russia; [Yoshimura, Akira; Zhdankin, Viktor V.] Univ Minnesota, Dept Chem & Biochem, Duluth, MN 55812 USA; [Wirth, Thomas] Cardiff Univ, Sch Chem, Pk Pl, Cardiff CF10 3AT, S Glam, Wales; [Nemykin, Victor N.] Univ Manitoba, Dept Chem, Winnipeg, MB R3T 2N2, Canada in 2019, Cited 30. The Name is Anthrone. Through research, I have a further understanding and discovery of 90-44-8. Product Details of 90-44-8

A ditriflate derivative of 2-iodoxybenzoic acid (IBX) was prepared by the reaction of IBX with trifluoromethanesulfonic acid and characterized by single crystal X-ray crystallography. IBX-ditriflate is the most powerful oxidant in a series of structurally similar IBX derivatives which is best illustrated by its ability to readily oxidize hydrocarbons and the oxidation resistant polyfluoroalcohols.

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I found the field of Chemistry; Science & Technology – Other Topics very interesting. Saw the article Visible-Light-Triggered Quantitative Oxidation of 9,10-Dihydroanthracene to Anthraquinone by O-2 under Mild Conditions published in 2020. COA of Formula: C14H10O, Reprint Addresses Fu, ZH (corresponding author), Hunan Normal Univ, Coll Chem & Chem Engn, Natl & Local Joint Engn Lab New Petrochem Mat & F, Changsha 410081, Hunan, Peoples R China.. The CAS is 90-44-8. Through research, I have a further understanding and discovery of Anthrone

The development of mild and efficient processes for the selective oxygenation of organic compounds by molecular oxygen (O-2) is key for the synthesis of oxygenates. This paper discloses an atom-efficient synthesis protocol for the photo-oxygenation of 9,10-dihydroanthracene (DHA) by O-2 to anthraquinone (AQ), which could achieve quantitative AQ yield (100 %) without any extra catalysts or additives under ambient temperature and pressure. A yield of 86.4 % AQ was obtained even in an air atmosphere. Furthermore, this protocol showed good compatibility for the photo-oxidation of several other compounds with similar structures to DHA. From a series of control experiments, free-radical quenching, and electron paramagnetic resonance spin-trapping results, the photo-oxygenation of DHA was probably initiated by its photoexcited state DHA*, and the latter could activate O-2 to a superoxide anion radical (O-2(.-)) through the transfer of its electron. Subsequently, this photo-oxidation was gradually dominated by the oxygenated product AQ as an active photocatalyst obtained from the oxidation of DHA by O-2(.-), and was accelerated with the rapid accumulation of AQ. The present photo-oxidation protocol is a good example of selective oxygenation based on the photoexcited substrate self-activated O-2, which complies well with green chemistry ideals.

COA of Formula: C14H10O. About Anthrone, If you have any questions, you can contact Jiang, DB; Hu, WW; Chen, MK; Fu, ZH; Su, AQ; Yang, B; Mao, F; Zhang, C; Liu, YC; Yin, DL or concate me.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem