Tag: M.W=100-150

Computed Properties of C8H6O2. Capolupo, M; Sorensen, L; Jayasena, KD; Booth, AM; Fabbri, E in [Capolupo, Marco; Jayasena, Kongalage Don Ranil; Fabbri, Elena] Univ Bologna, Dept Biol Geol & Environm Sci, Via St Alberto 163, I-48123 Ravenna, Italy; [Sorensen, Lisbet; Booth, Andy M.] SINTEF Ocean Environm & New Resources, Postboks 4762, N-7465 Trondheim, Norway published Chemical composition and ecotoxicity of plastic and car tire rubber leachates to aquatic organisms in 2020, Cited 66. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Synthetic polymer-based materials are ubiquitous in aquatic environments, where weathering processes lead to their progressive fragmentation and the leaching of additive chemicals. The current study assessed the chemical content of freshwater and marine leachates produced from car tire rubber (CTR), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS) and polyvinyl chloride (PVC) microplastics, and their adverse effects on the microalgae Raphidocelis subcapitata (freshwater) and Skeletonema costatum (marine) and the Mediterranean mussel Mytilus galloprovincialis. A combination of non-target and target chemical analysis revealed a number of organic and metal compounds in the leachates, including representing plasticizers, antioxidants, antimicrobials, lubricants, and vulcanizers. CTR and PVC materials and their corresponding leachates had the highest content of tentatively identified organic additives, while PET had the lowest. The metal content varied both between polymer leachates and between freshwater and seawater. Notable additives identified in high concentrations were benzothiazole (CTR), phthalide (PVC), acetophenone (PP), cobalt (CTR, PET), zinc (CTR, PVC), lead (PP) and antimony (PET). All leachates, except PET, inhibited algal growth with EC50 values ranging from 0.5% (CTR) and 64% (PP) of the total leachate concentration. Leachates also affected mussel endpoints, including the lysosomal membrane stability and early stages endpoints as gamete fertilization, embryonic development and larvae motility and survival. Embryonic development was the most sensitive parameter in mussels, with EC50 values ranging from 0.8% (CTR) to 65% (PET) of the total leachate. The lowest impacts were induced on D-shell larvae survival, reflecting their ability to down-regulate motility and filtration in the presence of chemical stressors. This study provides evidence of the relationship between chemical composition and toxicity of plastic/rubber leachates. Consistent with increasing contamination by organic and inorganic additives, the leachates ranged from slightly to highly toxic to mussels and algae, highlighting the need for a better understanding of the overall impact of plastic-associated chemicals on aquatic ecosystems. (C) 2019 The Authors. Published by Elsevier Ltd.

Welcome to talk about 87-41-2, If you have any questions, you can contact Capolupo, M; Sorensen, L; Jayasena, KD; Booth, AM; Fabbri, E or send Email.. Computed Properties of C8H6O2

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Benzofuran – Wikipedia,
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An article The Effect of Packing Material Properties on Tars Removal by Plasma Catalysis WOS:000601891100001 published article about NONTHERMAL PLASMA; MODEL-COMPOUND; BIOMASS GASIFICATION; NAPHTHALENE DECOMPOSITION; DISCHARGE CHARACTERISTICS; HETEROGENEOUS CATALYSIS; TOTAL OXIDATION; CARBON-DIOXIDE; PRODUCER GAS; CO2 in [Cimerman, Richard; Cibikova, Maria; Hensel, Karol] Comenius Univ, Fac Math Phys & Informat, Dept Astron Phys Earth & Meteorol, Mlynska Dolina F2, Bratislava 84248, Slovakia; [Satrapinskyy, Leonid] Comenius Univ, Fac Math Phys & Informat, Dept Expt Phys, Mlynska Dolina F2, Bratislava 84248, Slovakia in 2020, Cited 108. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. Category: benzofurans

Plasma catalysis has been utilized in many environmental applications for removal of various hydrocarbons including tars. The aim of this work was to study the tars removal process by atmospheric pressure DBD non-thermal plasma generated in combination with packing materials of various composition and catalytic activity (TiO2, Pt/gamma Al2O3, BaTiO3, gamma Al2O3, ZrO2, glass beads), dielectric constant (5-4000), shape (spherical and cylindrical pellets and beads), size (3-5 mm in diameter, 3-8 mm in length), and specific surface area (37-150 m(2)/g). Naphthalene was chosen as a model tar compound. The experiments were performed at a temperature of 100 degrees C and a naphthalene initial concentration of approx. 3000 ppm, i.e., under conditions that are usually less favorable to achieve high removal efficiencies. For a given specific input energy of 320 J/L, naphthalene removal efficiency followed a sequence: TiO2 > Pt/gamma Al2O3 > ZrO2 > gamma Al2O3 > glass beads > BaTiO3 > plasma only. The efficiency increased with the increasing specific surface area of a given packing material, while its shape and size were also found to be important. By-products of naphthalene decomposition were analyzed by means of FTIR spectrometry and surface of packing materials by SEM analysis.

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Benzofuran – Wikipedia,
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I found the field of Chemistry; Science & Technology – Other Topics very interesting. Saw the article Continuous-Flow Amide and Ester Reductions Using Neat Borane Dimethylsulfide Complex published in 2020. Recommanded Product: 87-41-2, Reprint Addresses Otvos, SB; Kappe, CO (corresponding author), Karl Franzens Univ Graz, Inst Chem, NAWI Graz, Heinrichstr 28, A-8010 Graz, Austria.; Kappe, CO (corresponding author), RCPE, Ctr Continuous Synth & Proc CCFLOW, Inffeldgasse 13, A-8010 Graz, Austria.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

Reductions of amides and esters are of critical importance in synthetic chemistry, and there are numerous protocols for executing these transformations employing traditional batch conditions. Notably, strategies based on flow chemistry, especially for amide reductions, are much less explored. Herein, a simple process was developed in which neat borane dimethylsulfide complex (BH3 center dot DMS) was used to reduce various esters and amides under continuous-flow conditions. Taking advantage of the solvent-free nature of the commercially available borane reagent, high substrate concentrations were realized, allowing outstanding productivity and a significant reduction in E-factors. In addition, with carefully optimized short residence times, the corresponding alcohols and amines were obtained in high selectivity and high yields. The synthetic utility of the inexpensive and easily implemented flow protocol was further corroborated by multigram-scale syntheses of pharmaceutically relevant products. Owing to its beneficial features, including low solvent and reducing agent consumption, high selectivity, simplicity, and inherent scalability, the present process demonstrates fewer environmental concerns than most typical batch reductions using metal hydrides as reducing agents.

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Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Recommanded Product: 87-41-2. In 2019 ASIAN J ORG CHEM published article about GAMMA-LACTONES; CYCLIZATION; PHTHALIDES; FUNCTIONALIZATION; AMINES; ETHERS; ACIDS in [Nozawa-Kumada, Kanako; Kurosu, Satoshi; Shigeno, Masanori; Kondo, Yoshinori] Tohoku Univ, Grad Sch Pharmaceut Sci, Aoba Ku, 6-3 Aoba, Sendai, Miyagi 9808578, Japan in 2019, Cited 48. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

An inexpensive, powerful, and eco-friendly method for transition-metal-free oxidative C(sp(3))-H bond lactonization was developed using sodium peroxydisulfate as the sole oxidant. The cyclization of 2-alkylbenzoic acids containing a primary, secondary or tertiary carbon at the benzylic position proceeded smoothly, affording a variety of lactone derivatives. Furthermore, various functional groups such as halogen, cyano, nitro and hydroxy groups were tolerated under the reaction conditions.

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Benzofuran – Wikipedia,
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An article Investigation of the Potential Environmental Risks of Phthalate Derivatives Designed To Be Environmentally Friendly WOS:000528480300001 published article about ACID ESTERS; DEGRADATION; PHOTOLYSIS; TOXICITY; WATER; DERIVATIZATION; ORGANIZATION; METABOLITES; DIESTERS; PATTERNS in [Zhang, Wenhui; Sun, Ruihao; Hou, Yilin; Li, Yu] North China Elect Power Univ, Coll Environm Sci & Engn, Beijing, Peoples R China; [Zhang, Wenhui; Sun, Ruihao; Hou, Yilin; Li, Yu] North China Elect Power Univ, State Key Lab Reg Optimizat Energy Syst, Beijing, Peoples R China; [Qiu, Youli] North China Inst Sci & Technol, Dept Environm Engn, Beijing, Peoples R China in 2020, Cited 57. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. Computed Properties of C8H6O2

Phthalate derivatives with low estrogenic activity, high infrared spectrum signals, high Raman characteristic vibration spectrum, high fluorescence intensity, and high ultraviolet sensitivity were selected as precursors from our previous studies, so that the changes in their toxicity and estrogenic activity during biological metabolism, ozone oxidation, photocatalytic degradation, photodegradation, and microbial degradation could be studied.The transformation pathways of these derivatives were simulated, and the reaction energy barriers were calculated. To determine the potential environmental risks of these phthalate derivatives, the pharmacophore models of biotoxicity and estrogen activity of phthalates were used to predict the biotoxicity and estrogen activity of the transformed products. The results showed an increase in the biotoxicity and estrogen activity of the biometabolites, ozonation products, photocatalytic degradation products, and microbial degradation products; the only products that did not follow this trend were the photodegradation products. Notably, the pathways that produced more potentially toxic compounds were the less favorable paths. Our results indicate that the transformation products of the designed environmentally friendly phthalate derivatives potentially pose environmental risks. To avoid such risks, the environmental transformation pathway of these derivatives should be simulated to screen for environmentally friendly phthalate molecules. Environ Toxicol Chem 2020;00:1-11. (c) 2020 SETAC

Computed Properties of C8H6O2. Welcome to talk about 87-41-2, If you have any questions, you can contact Zhang, WH; Sun, RH; Hou, YL; Qiu, YL; Li, Y or send Email.

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Benzofuran – Wikipedia,
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Safety of Isobenzofuran-1(3H)-one. In 2019 APPL CATAL A-GEN published article about ACID IONIC LIQUIDS; EFFICIENT SYNTHESIS; CHEMICAL-EQUILIBRIUM; METHANOL; REDUCTION; SITES; OME; PARAFORMALDEHYDE; IMPROVEMENT; TRIOXANE in [Wang, Ruiyi; Wu, Zhiwei; Li, Zhikai; Qin, Zhangfeng; Chen, Chengmeng; Zheng, Zhanfeng; Wang, Guofu; Fan, Weibin; Wang, Jianguo] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, POB 165, Taiyuan 030001, Shanxi, Peoples R China; [Chen, Chengmeng] Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Shanxi, Peoples R China in 2019, Cited 48. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Polyoxymethylene dimethyl ethers (PODE, with the formula of CH3O-(CH2O)(n)-CH3), as a promising environmentally benign diesel fuel or additive with an enormous potential in the reduction of soot and NIC, emissions, can be efficiently synthesized from methanol derivatives such as dimethoxymethane (DMM) and trioxymethylene (TOM), which requests a proper catalyst of high performance. In this work, the catalytic performance of graphene oxide (GO) in the synthesis of PODEn as well as its relation to the catalyst structure was thoroughly investigated. The results indicate that GO is an excellent catalyst in the synthesis of PODEn from DMM and TOM; a TOM conversion of 94.6% and selectivity of 86.0% to PODE2-8 are achieved under mild reaction conditions, which is superior to the majority of the state-of-the-art catalysts. Meanwhile, the active species and characteristic layer structure of GO sheets catalytically responsible for PODEn formation were discriminated through selectively removing certain surface functional groups, thermally annealing at different temperatures, and carefully comparing with a series of model compounds. The results illustrate that the superior catalytic performance of GO in the PODEn synthesis should be ascribed to a synergy between the surface sulfonyl, hydroxyl and carboxyl groups present on the GO surface and the unique layered structure of GO sheets, wherein the surface sulfonyl groups act as the main active sites. The insights shown in this work are beneficial to a deep understanding on the catalytic principle of GO and development of efficient catalyst for the synthesis of PODEn.

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Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

An article Degradation of alpha-nitroso-beta-naphthol by UVA-B activated peroxide, persulfate and monopersulfate oxidants in water WOS:000487231200031 published article about ADVANCED OXIDATION PROCESSES; AQUEOUS-SOLUTION; WASTE-WATER; PHOTOCHEMICAL DEGRADATION; HYDROXYL RADICALS; HYDROGEN-PEROXIDE; AZO-DYE; MECHANISM; REMOVAL; KINETICS in [Lu, Chao; Yao, Jun; Amde, Meseret; Gu, Jihai; Liu, Jianli; Li, Hao] China Univ Geosci Beijing, Res Ctr Environm Sci & Engn, Sch Water Resource & Environm, 29 Xueyuan Rd, Beijing 100083, Peoples R China; [Knudsen, Tatjana Solevic] Univ Belgrade, Inst Chem Technol & Met, Njegoseva 12, Belgrade 11000, Serbia; [Amde, Meseret] Haramaya Univ, Coll Nat & Computat Sci, Dept Chem, POB 138, Dire Dawa, Ethiopia; [Zhang, Junyang] Curtin Univ, Western Australia Sch Mines, Dept Min & Met Engn, Kalgoorlie, WA, Australia in 2019, Cited 47. Recommanded Product: Isobenzofuran-1(3H)-one. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2

Flotation reagents, especially new chelating agents represented by alpha-nitroso-beta-naphthol, are the main components of cobalt mining drainage. This study reports the degradation of alpha-nitroso-beta-naphthol by simulated UVA-B (280-400 nm) activated systems using three common oxidants, hydrogen peroxide, sodium persulfate and potassium monopersulfate at a laboratory scale using a photoreactor. Parameters which can affect the degradation process were investigated and comparison of the degradation performance of the three systems were made. Based on the results, UVA-B/sodium persulfate system exhibited best performance towards the removal of alpha-nitroso-beta-naphthol with a lower cost of oxidant and energy consumption compared to the others. The removal efficiency was found to increase as the oxidant dosage and the UVA-B power increases. Only potassium monopersulfate could be activated by bicarbonate and chloride ions, and SO42- has insignificant effect on the removal efficiency of alpha-nitroso-beta-naphthol for all systems while NO3- inhibited the degradation of alpha-nitroso-beta-naphthol. In the UVA-B/hydrogen peroxide system, the hydroxyl radical had a leading role in the degradation of alpha-nitroso-beta-naphthol, while in the other two systems, the degradation of alpha-nitroso-beta-naphthol was mainly caused by the hydroxyl and sulphate radicals. Ten major intermediates from alpha-nitroso-beta-naphthol degradation in the three oxidation systems were identified by gas chromatography and mass spectrometry. In summary, this report could be a great input in developing UVA-B activated oxidants-based treatment technologies. The UVA-B/sodium persulfate system is strongly recommended for its consideration in the treatment of mine impacted wastewaters. (c) 2019 Elsevier Ltd. All rights reserved.

Welcome to talk about 87-41-2, If you have any questions, you can contact Lu, C; Yao, J; Knudsen, TS; Amde, M; Gu, JH; Liu, JL; Li, H; Zhang, JY or send Email.. Recommanded Product: Isobenzofuran-1(3H)-one

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

In J POLYM SCI POL CHEM published article about ALLYLIC AMINES; ARYL IODIDES; POLYMERIZATION; POLYMERS; COMPLEX; ETHYLENE; CYCLOPOLYMERIZATION; COPOLYMERIZATION; POLYETHYLENES; ALKYLENE)S in [Tan, Liyi; Takeuchi, Daisuke; Osakada, Kohtaro] Tokyo Inst Technol, Lab Chem & Life Sci, R1-03,4259 Nagatsuta, Yokohama, Kanagawa 2268503, Japan; [Takeuchi, Daisuke] Hirosaki Univ, Grad Sch Sci & Technol, Dept Frontier Mat Chem, 3 Bunkyo Cho, Hirosaki, Aomori 0368561, Japan in , Cited 41. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. Category: benzofurans

The Pd-catalyzed three-component coupling polycondensation of diiodoarenes, nonconjugated dienes, and carbonucleophiles afforded poly(arylene alkenylene)s with moderate molecular weight in good yield. The reaction involves Mizoroki-Heck coupling, olefin migration via chain walking, and addition of the carbonucleophile to the resulting pi-allylpalladium species. The polymerization with a slight excess of nucleophile with respect to diiodoarene also proceeded to give the polymer without significant decrease in molecular weight in spite of the nonstoichiometric mixture of the monomers. The Pd-catalyzed three-component coupling polycondensation of diiodoarenes, nonconjugated dienes, and diimide also proceeded. The base used in the reaction is critical for yield and molecular weight of the product. The reaction using NaHCO3 afforded the product with low solubility, which can be explained by the high molecular weight of the polymer and/or the strong interaction of the electron donating dimethoxyphenylene groups and electron accepting diimide groups in the polymer. (c) 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019

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Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

COA of Formula: C8H6O2. In 2020 CHEMSUSCHEM published article about DIBAL-H REDUCTION; CATALYTIC-HYDROGENATION; CARBONYL REDUCTIONS; CHEMISTRY; GREEN; EFFICIENT; CINACALCET; TOOLS in [Oetvoes, Sandor B.; Kappe, C. Oliver] Karl Franzens Univ Graz, Inst Chem, NAWI Graz, Heinrichstr 28, A-8010 Graz, Austria; [Kappe, C. Oliver] RCPE, Ctr Continuous Synth & Proc CCFLOW, Inffeldgasse 13, A-8010 Graz, Austria in 2020, Cited 63. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Reductions of amides and esters are of critical importance in synthetic chemistry, and there are numerous protocols for executing these transformations employing traditional batch conditions. Notably, strategies based on flow chemistry, especially for amide reductions, are much less explored. Herein, a simple process was developed in which neat borane dimethylsulfide complex (BH3 center dot DMS) was used to reduce various esters and amides under continuous-flow conditions. Taking advantage of the solvent-free nature of the commercially available borane reagent, high substrate concentrations were realized, allowing outstanding productivity and a significant reduction in E-factors. In addition, with carefully optimized short residence times, the corresponding alcohols and amines were obtained in high selectivity and high yields. The synthetic utility of the inexpensive and easily implemented flow protocol was further corroborated by multigram-scale syntheses of pharmaceutically relevant products. Owing to its beneficial features, including low solvent and reducing agent consumption, high selectivity, simplicity, and inherent scalability, the present process demonstrates fewer environmental concerns than most typical batch reductions using metal hydrides as reducing agents.

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Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

An article (Cyclopentadienone)iron-Catalyzed Transfer Dehydrogenation of Symmetrical and Unsymmetrical Diols to Lactones WOS:000516665800006 published article about MEDIATED 2+2+1 CYCLOADDITIONS; IRON-CATALYZED HYDROGENATION; OPPENAUER-TYPE OXIDATION; METAL-DIENE COMPLEXES; REGIOSELECTIVE DEHYDROGENATION; AEROBIC OXIDATION; ORGANIC-SYNTHESIS; CARBON-MONOXIDE; LACTONIZATION; ALCOHOLS in [Tang, Yidan; Meador, Rowan I. L.; Malinchak, Casina T.; Harrison, Emily E.; McCaskey, Kimberly A.; Hempel, Melanie C.; Funk, Timothy W.] Gettysburg Coll, Dept Chem, Gettysburg, PA 17325 USA in 2020, Cited 86. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. SDS of cas: 87-41-2

Air-stable iron carbonyl compounds bearing cyclo-pentadienone ligands with varying substitution were explored ,as catalysts in dehydrogenative diol lactonization reactions using acetone as both the solvent and hydrogen acceptor. Two catalysts with trimethylsilyl groups in the 2- and 5-positions, [2,S-(SiMe3)(2)-3,4-(CH2)(4)(eta(4)-C4C=O))Fe(CO)(3) (1) and [2,5-(SiMe3)(2)-3,4(CH2)(3)(eta(4)-C4C=O)]Fe(CO)(3) (2), were found to be the most active, with 2 being the most selective in the lactonization of diols containing both primary and secondary alcohols. Lactones containing five-, six-, and seven-membered rings .were successfully synthesized, and no over-oxidations to carboxylic acids were detected. The lactonization of unsymmetrical diols containing two primary alcohols occurred with catalyst 1, but selectivity was low based on alcohol electronics and modest based on alcohol sterics. Evidence for a transfer dehydrogenation mechanism was found, and insight into the origin of selectivity in the lactonization of 1 degrees/2 degrees diols was obtained. Additionally, spectroscopic evidence for a trimethylamine-ligated iron species formed in solution during the reaction was discovered.

Welcome to talk about 87-41-2, If you have any questions, you can contact Tang, YD; Meador, RIL; Malinchak, CT; Harrison, EE; McCaskey, KA; Hempel, MC; Funk, TW or send Email.. SDS of cas: 87-41-2

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem