Tag: M.W=100-150

Authors Xu, C; He, Z; Yang, HQ; Chen, HY; Zeng, QL in PERGAMON-ELSEVIER SCIENCE LTD published article about DIRECT ACCESS; FUNCTIONALIZATION; DISELENIDES; DISULFIDES; ACTIVATION; SELENIDES; OLEFINS in [Xu, Chao; He, Ze; Yang, Hongqin; Chen, Hongyi; Zeng, Qingle] Chengdu Univ Technol, Coll Mat Chem & Chem Engn, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Peoples R China in 2021, Cited 52. Quality Control of 1,3-Dimethoxybenzene. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

FeCl3-catalyzed three-component aryl-selenylation of alkenes with good to excellent yields has been disclosed. This method is characterized by synthesis of complicated products in a single-step reaction, simple operation and readily available commercially reagents. Finally, a reasonable mechanism of FeCl3-catalyzed aryl-selenylation is proposed. (C) 2021 Elsevier Ltd. All rights reserved.

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Recently I am researching about OXIDATIVE STRESS; HYDROGEN-PEROXIDE; RADICAL-CATION; VITAMIN-E; MECHANISMS; ATOM; DERIVATIVES; INHIBITION; MANAGEMENT; REDUCTION, Saw an article supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia [172016, 172014, 172015, III43004]. Published in ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER in ISSY-LES-MOULINEAUX ,Authors: Jakovljevic, K; Joksovic, MD; Botta, B; Jovanovic, LS; Avdovic, E; Markovic, Z; Mihailovic, V; Andric, M; Trifunovic, S; Markovic, V. The CAS is 99-04-7. Through research, I have a further understanding and discovery of 3-Methylbenzoic acid. Recommanded Product: 3-Methylbenzoic acid

A series of 15 novel 1,3,4-thiadiazole amide derivatives containing a protocatechuic acid moiety were synthesized and structurally characterized. In addition, the corresponding imino (4) and amino (5) analogues of a phenyl-substituted 1,3,4-thiadiazole amide derivative 3a were prepared to compare the effects of the structural changes on the radical-scavenging activity. The obtained compounds were examined for their antioxidative potential by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) assays. In addition, selected compounds were studied by density functional theory (DFT) and cyclic voltammetry experiments. The tested compounds showed high potential to scavenging DPPH radical and ABTS radical cation compared with the referent antioxidants ascorbic acid and nordihydroguaiaretic acid (NDGA). On the basis of the calculated thermodynamic parameters, it can be concluded that the sequential proton loss electron transfer (SPLET) mechanism represents the most probable reaction path in a polar solvent for DPPH radical-scavenging activity. On the other hand, the single electron transfer followed by proton transfer (SET-PT) can be a likely mechanistic pathway in the case of an ABTS radical cation. (C) 2019 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

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Isothiazole – Wikipedia,
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An article Redox-neutral photocatalytic strategy for selective C-C bond cleavage of lignin and lignin models via PCET process WOS:000497954900006 published article about PRIMARY ALCOHOL OXIDATION; VISIBLE-LIGHT; ORGANIC FRAMEWORKS; RADICAL CATIONS; CARBON-CARBON; DEPOLYMERIZATION; HYDROGENOLYSIS; TRANSFORMATION; DEGRADATION; BIOMASS in [Wang, Yinling; Liu, Yue; He, Jianghua; Zhang, Yuetao] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Jilin, Peoples R China in 2019, Cited 62. Recommanded Product: 151-10-0. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

It remains challenging to achieve the selective cleavage of C-C bonds in lignin or lignin model compounds to produce aromatic products in high yield and selectivity. We have developed a redox-neutral photocatalytic strategy to accomplish this goal in both beta-O-4 and beta-1 lignin models at room temperature (RT) via proton-coupled electron transfer (PCET) process without any pretreatments of substrate, by adjusting the alkalinity of base to obtain a lignin models/base PCET pair with a bond dissociation free energy close to 102 kcal/mol. Without breaking down C-beta-C-gamma bond and any C-O bonds, this PCET method is 100% atom economy and produces exclusive C-alpha-C-beta bond cleavage products, such as benzaldehydes (up to 97%) and phenyl ethers (up to 96%), in high to excellent yields and selectivities. Preliminary studies indicated that the PCET strategy is also effective for the depolymerization of native lignin at RT, thus providing significantly important foundation to the depolymerization of lignin. (C) 2019 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.

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An article Electrophilic Cyanative Alkenylation of Arenes WOS:000547468700004 published article about SUBSTITUTED QUINOLINES; POLYCYCLIC AROMATICS; CYCLIZATION; CARBOCYCLIZATIONS; ALKYNES in [Zhao, Mingyue; Barrado, Alejandro G.; Sprenger, Kristin; Golz, Christopher; Alcarazo, Manuel] Georg August Univ Gottingen, Inst Organ & Biomol Chem, D-37077 Gottingen, Germany; [Mata, Ricardo A.] Georg August Univ Gottingen, Inst Phys Chem, D-37077 Gottingen, Germany in 2020, Cited 45. Computed Properties of C8H10O2. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

A variety of appropriately substituted internal alkynes were transformed into the corresponding cyano-substituted phenanthrenes, dihydronaphthalenes, and cyclohepta-1,3,5-trienes in moderate to excellent yields by treatment with imidazolium thiocyanate 1, which serves as an easy to handle [CN](+) precursor, in the presence of BCl3. The synthetic value of the method is additionally demonstrated by the transformation of the primarily obtained products into heavily substituted quinolines. Additionally, the dynamic properties of the prepared dibenzocyclohepta-1,3,5-trienes have been investigated.

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An article TfOH-promoted transformation of TMS-ethers of diarylsubstituted CF3-allyl alcohols with arenes into CF3-indanes WOS:000484960000012 published article about TRIFLUOROMETHYLATED ALLYL ALCOHOLS; INDENES; CYCLIZATION in [Zerov, Aleksey V.; Bulova, Anastasia A.; Vasilyev, Aleksander V.] St Petersburg State Univ, Inst Chem, Dept Organ Chem, Univ Skaya Nab 7-9, St Petersburg 199034, Russia; [Khoroshilova, Olesya V.] St Petersburg State Univ, Res Ctr Xray Diffract Studies, Res Pk,Univ Skiy Pr 26, St Petersburg 198504, Petrodvoretz, Russia; [Vasilyev, Aleksander V.] St Petersburg State Forest Tech Univ, Dept Chem, Inst Sky Per 5, St Petersburg 194021, Russia in 2019, Cited 34. Quality Control of 1,3-Dimethoxybenzene. The Name is 1,3-Dimethoxybenzene. Through research, I have a further understanding and discovery of 151-10-0

The reaction of TMS-ethers of 2,4-diaryl-1,1,1-trifluorobut-3-en-2-ols with arenes in TfOH at room temperature for 5 min results in the formation of trans-/cis-1,3-diaryl-1-trifluoromethyl indanes in good yields (up to 99%). The predominant or exclusive formation of indanes with a trans-configuration of 1,3-diaryl groups has been observed. The reaction proceeds through an intermediate formation of the corresponding mesomeric CF3-allyl cations. A plausible reaction mechanism is discussed.

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Isothiazole – Wikipedia,
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Computed Properties of C8H8O2. Authors Chen, C; Wang, ZQ; Gong, YY; Wang, JC; Yuan, Y; Cheng, H; Sang, W; Chaemchuen, S; Verpoort, F in PERGAMON-ELSEVIER SCIENCE LTD published article about in [Chen, Cheng; Wang, Zhi-Qin; Wang, Ji-Chao; Yuan, Ye; Sang, Wei; Chaemchuen, Somboon; Verpoort, Francis] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, 122 Luoshi Rd, Wuhan 430070, Peoples R China; [Gong, Yan-Yan] Qilu Univ Technol, Shandong Acad Sci, State Key Lab Biobased Mat & Green Papermaking, Jinan, Peoples R China; [Cheng, Hua] Hubei Univ Arts & Sci, Dept Chem Engn & Food Sci, Xiangyang 441053, Peoples R China; [Chaemchuen, Somboon; Verpoort, Francis] Natl Res Tomsk Polytech Univ, Lenin Ave 30, Tomsk 634050, Russia; [Verpoort, Francis] Univ Ghent, Global Campus,119 Songdomunhwa Ro, Incheon 406840, South Korea in 2021, Cited 81. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7

Herein, cobalt embedded in nitrogen-doped porous carbon (Co@NC) was developed as a robust heterogeneous catalyst for the dehydrogenative coupling of primary alcohols and hydroxides. With Co@NC as the first earth-abundant metal/carbon composite material for this transformation, numerous aromatic and aliphatic carboxylic acids were efficiently afforded. Notably, the newly prepared Co@NC was fabricated in a facile and straightforward manner and reused up to 15 recycle rounds without activity decay. It is also worth emphasizing that the catalyst recycling was realized via magnetic separation with no special treatment or activation. Additionally, further experiments elucidated the pivotal role of the cobalt and nitrogen elements dispersed in the carbon matrix as well as the hierarchical porosity (micro-/mesopores) in the catalytic activity and recyclability. Considering the active sites of Co@NC, we envisioned that the Co-N species was the most active site, while other active sites such as Co-O, Co-0 species and free N-doped carbon were also present, but demonstrating lower activity or stability in comparison with the Co-N species. Additional mechanistic investigations were carried out to gain more insights into the possible reaction pathways. We found that the aldehyde was identified as a crucial intermediate, and two possible pathways were proposed for this catalytic process. (C) 2020 Elsevier Ltd. All rights reserved.

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Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Safety of 3-Methylbenzoic acid. In 2020 ACS CHEM NEUROSCI published article about GLYCOGEN-SYNTHASE KINASE-3-BETA; ALZHEIMERS-DISEASE; BIOLOGICAL EVALUATION; POTENT INHIBITORS; DESIGN; IDENTIFICATION; DERIVATIVES; KINASES; STRESS; GSK3 in [Liu, Jian-Guo; Xu, Ming-Hua] Southern Univ Sci & Technol, Dept Chem, Shenzhen Key Lab Small Mol Drug Discovery & Synth, Shenzhen 518055, Peoples R China; [Liu, Jian-Guo; Chen, Wen-Wen; Xu, Ming-Hua] Chinese Acad Sci, Shanghai Inst Mat Med, State Key Lab Drug Res, Shanghai 201203, Peoples R China; [Zhao, Danfeng; Gong, Qi; Bao, Fengxia; Zhang, Haiyan] Chinese Acad Sci, Shanghai Inst Mat Med, CAS Key Lab Receptor Res, Shanghai 201203, Peoples R China in 2020, Cited 47. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7.

Development of glycogen synthase kinase-3 beta (GSK-3 beta) inactivation-centric agents with polypharmacological profiles is increasingly recognized as a promising therapeutic strategy against the multifactorial etiopathology of Alzheimer’s disease (AD). In this respect, a series of disubstituted aminopyrazole derivatives were designed and synthesized as a new class of GSK-3 beta inhibitors. Most of these derivatives possess GSK-3 beta inhibitory activities with IC50 values in the micromolar ranges, among which bisindole-substituted aminopyrazole derivative 6h displayed moderate GSK-3 beta inhibition (IC50 = 1.76 +/- 0.19 mu M), and alleviative effects against lipopolysaccharide (LPS)-induced glial inflammation in BV-2 cells and glutamate-induced oxidative neurotoxicity in HT-22 cells. Further in vivo studies indicated that compound 6h had potent anti-inflammatory effect, by showing markedly reduced microglial activation and astrocyte proliferation in the brain of LPS-injected mice. Overall, the simultaneous modulation of 6h on multiple dysfunctions of disease network highlights this structural distinctively bisindole-substituted aminopyrazole could be a useful prototype for the discovery of novel therapeutic agents to tackle AD and other GSK-3 beta associated complex neurological syndromes.

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Isothiazole – Wikipedia,
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Formula: C8H10O2. Recently I am researching about DIHYDROLEVOGLUCOSENONE CYRENE; LIGNOCELLULOSIC BIOMASS; LEVOGLUCOSENONE; PLATFORM; ACID, Saw an article supported by the . Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Ray, P; Hughes, T; Smith, C; Hibbert, M; Saito, K; Simon, GP. The CAS is 151-10-0. Through research, I have a further understanding and discovery of 1,3-Dimethoxybenzene

In this work, Cyrene (TM), a bio-based green solvent, has been transformed into its methacrylic derivative (m-Cyrene) for the first time. Polymerization of the newly-synthesized monomer was studied using different polymerization techniques such as bulk, solution and emulsion polymerization. Compared to solution polymerization, emulsion polymerization was found to produce higher yields and molecular weights. Cyrene (TM), along with other green solvents, was used as a polymerization solvent and was found to be the most effective (as a solvent) with the highest yield and molecular weight. The new Cyrene (TM) monomer was found to undergo rapid polymerization compared to isobornyl methacrylate (IBMA), another bio-derived monomer with a close structural similarity, and the highest polymerization rate was obtained in Cyrene (TM) as the polymerization solvent media. A reactivity ratio calculation also showed m-Cyrene to be more reactive than IBMA. The homopolymer derived from emulsion polymerization showed high glass transition temperature (192 degrees C) and thermal stability (up to ca. 266 degrees C). Cytotoxicity testing confirmed the non-toxic nature of the bio-derived monomer, making it a green bio-derived methacrylic monomer for synthesizing polymers, where high thermal stability and mechanical properties are required.

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Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

Computed Properties of C8H8O2. Authors Xu, KQ; Liu, L; Li, ZH; Huang, TZ; Xiang, K; Chen, TQ in AMER CHEMICAL SOC published article about in [Xu, Kaiqiang; Liu, Long; Li, Zhaohui; Huang, Tianzeng; Xiang, Kang; Chen, Tieqiao] Hainan Univ, Hainan Prov Fine Chem Engn Res Ctr, Hainan Prov Key Lab Fine Chem, Key Lab,Minist Educ Adv Mat Trop Isl Resources, Haikou 570228, Hainan, Peoples R China in 2020, Cited 64. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7

The controllable phosphorylations of thioesters were developed. When the reaction was catalyzed by a palladium catalyst, aryl or alkenyl phosphoryl compounds were generated through decarbonylative coupling, while the benzyl phosphoryl compounds were produced through deoxygenative coupling when the reaction was carried out in the presence of only a base.

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Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com

In 2021.0 POLYM DEGRAD STABIL published article about HIGH-DENSITY POLYETHYLENE; FLUIDIZED-BED REACTOR; THERMAL-DEGRADATION; CATALYTIC DEGRADATION; POLYPROPYLENE; POLYSTYRENE; FUEL; TEMPERATURE; RECOVERY in [Klaimy, S.; Casetta, M.; Duquesne, S.] Univ Lille, UMET Unite Mat & Transformat, Cent Lille, CNRS,INRAE,UMR 8207, F-59000 Lille, France; [Klaimy, S.; Lamonier, J-F] Univ Lille, Univ Artois, UCCS Unite Catalyse & Chim Solide, CNRS,Cent Lille,ENSCL,UMR 8181, F-59000 Lille, France; [Heymans, S.] NeoEco, Zone Commerciale, 1 Rue Source, F-59320 Hallennes Lez Haubourdin, France in 2021.0, Cited 44.0. The Name is 3-Methylbenzoic acid. Through research, I have a further understanding and discovery of 99-04-7. Safety of 3-Methylbenzoic acid

Recovery of plastic waste is becoming crucial since the amount of such waste increases continuously. The objective of this study is to investigate the potential of the pyrolysis technique for the recovery of plastic waste. In that frame, the influence of temperature (550 degrees C or 600 degrees C) on the pyrolysis of pure polypropylene (PP), polyethylene (PE), polystyrene (PS) and polyethylene terephthalate (PET) was first studied. It is shown that whatever the type of polymer, aromatic compounds are mainly formed and could reach 55wt.-% of the oil fraction for PP and 31wt.-% for PE at 550 degrees C. In a second step, a PP/PE mixture and a model mixture representative of the packaging plastic waste stream were pyrolyzed to investigate the influence of a combination of polymers on the proportions and composition of the different fractions. The pyrolysis of the polymer mixtures shows that, even if the aromatic compounds formed are similar to those obtained for the virgin polymers, the proportion of aromatic compounds is much more important than when the polymers are pyrolyzed alone. Indeed, mixing PE with PP at a 50/50 ratio does not affect the amount of liquid, gas and solid fractions but leads to the formation of a higher quantity of xylene (39 wt-%) at 550 degrees C. The combination of the plastics in the model mixture has also led to a decrease of the amount of waxy compounds. Furthermore, it was shown that a higher amount of aromatics than expected was formed. As a conclusion, this study demonstrates that pyrolysis is an effective technique to recover plastic waste as aromatic compounds for the petroleum industry. In the specific conditions used in this study (proposed model mixture and pyrolysis conditions), it will favor the idea that sorting is not needed to recover plastic waste through pyrolysis since aromatics formation is favored when the stream is composed of a mixture of polymers. (C) 2021 Published by Elsevier Ltd.

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Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com