Tag: M.W=100-150

I found the field of Chemistry very interesting. Saw the article Synthesis and Photodimerization of 2-and 2,3-Disubstituted Anthracenes: Influence of Steric Interactions and London Dispersion on Diastereoselectivity published in 2019. SDS of cas: 87-41-2, Reprint Addresses Bettinger, HF (corresponding author), Eberhard Karls Univ Tubingen, Inst Organ Chem, Morgenstelle 18, D-72076 Tubingen, Germany.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

There is increased evidence that the effect of bulky groups in organic, organometallic, and inorganic chemistry is not only repulsive but can be attractive because of London dispersion interactions. The influence of the size of primary alkyl substituents in 2- ‘ and 2,3-positions of anthracenes on the diastereoselectivity (anti vs syn dimer) of the [pi(4s) + pi(4s)] photoinduced dimerization is investigated. The synthesis of the anthracene derivatives was achieved by Suzuki-Miyaura reaction of 2,3-dibromoanthracene with alkylboronic acids as well as by reduction of anthraquinones that were obtained from 2,3-disubstituted 1,3-butadienes and naphthoquinone followed by dehydrogenation. The mixtures of dianthracene isomers were analyzed with respect to the anti/syn-ratio of the products by X-ray crystallography and nuclear Overhauser effect spectroscopy. While for the 2,3-dimethylanthracene the anti and syn isomers were formed in equal amounts, the anti dimers are the major products in all other cases. A linear correlation (R-2 = 0.98) between the steric size (Charton parameter) and the isomeric ratio suggests that the selectivity is dominated by classical repulsive steric effects. An exception is the iso-butyl substituent that produces an increased amount of the syn isomer. It is suggested that this is due to an exalted effect of London dispersion interactions.

SDS of cas: 87-41-2. Welcome to talk about 87-41-2, If you have any questions, you can contact Geiger, T; Haupt, A; Maichle-Mossmer, C; Schrenk, C; Schnepf, A; Bettinger, HF or send Email.

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

Authors Shaalan, Y; Boulton, L; Jamieson, C in AMER CHEMICAL SOC published article about in [Shaalan, Youssef; Boulton, Lee] GlaxoSmithKline Med Res Ctr, Chem Dev, Stevenage SG1 2NY, Herts, England; [Shaalan, Youssef; Jamieson, Craig] Univ Strathclyde, Dept Pure & Appl Chem, Glasgow G1 1XL, Lanark, Scotland in 2020, Cited 39. Quality Control of Isobenzofuran-1(3H)-one. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2

Ruthenium pincer complexes were synthesized and used for catalytic ester reductions under mild conditions (similar to 5 bar of hydrogen). An experimental design approach was used to optimize the conditions for yield, purity, and robustness. Evidence for the catalytically active ruthenium dihydride species is presented. Observed intermediates and side products, as well as time-course data, were used to build mechanistic insight. The optimized procedure was further demonstrated through scaled-up reductions of two pharmaceutically relevant esters, both in batch and continuous flow.

Welcome to talk about 87-41-2, If you have any questions, you can contact Shaalan, Y; Boulton, L; Jamieson, C or send Email.. Quality Control of Isobenzofuran-1(3H)-one

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

COA of Formula: C8H6O2. I found the field of Toxicology very interesting. Saw the article Association of electroanalytical and spectrophotometric methods to evaluate the antioxidant activity of isobenzofuranone in primary cultures of hippocampal neurons published in 2020, Reprint Addresses Nogueira, KDPC (corresponding author), Univ Fed Ouro Preto, Inst Ciencias Exatas Biol ICEB, Dept Ciencias Biol DECBI, Campus Morro Cruzeiro S-N, BR-35400000 Ouro Preto, MG, Brazil.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one.

The isobenzofuran-1(3H)-ones (phthalides) exhibit various biological activities, including antioxidant activity on reactive oxygen species (ROS). An excess of ROS that cannot be naturally contained by cellular enzymatic systems is called redox imbalance, which damage cell membranes, proteins, and DNA, thereby possibly triggering neuronal death in several neurodegenerative diseases. Considering our ongoing efforts to find useful compounds to control redox imbalance, herein we evaluated the antioxidant activity of two phtalides (compounds 3 and 4), using primary cultures of hippocampal neurons. Spectrophotometric assays showed that compound 3 significantly reduced (p <= 0.05) ROS levels and lipid peroxidation compared to the control treatment, while compound 4 was unable at any of the tested concentrations. Despite their structural similarity, these compounds behave differently in the intracellular environment, which was reliably corroborated by the determination of oxidation potentials via cyclic voltammetry. It was demonstrated that compound 3 presents a lower oxidation potential. The combination of the mentioned methods allowed us to find a strong correlation between the chemical structure of compounds and their biological effects. Taking together, the results indicate that compound 3 presents desirable characteristics to act as a candidate pharmacological agent for use in the prevention and treatment of neurodegenerative diseases. COA of Formula: C8H6O2. Bye, fridends, I hope you can learn more about C8H6O2, If you have any questions, you can browse other blog as well. See you lster.

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

I found the field of Chemistry very interesting. Saw the article alpha-Angelica lactone catalyzed oxidation of benzylic sp(3) C-H bonds of isochromans and phthalans published in 2020. Safety of Isobenzofuran-1(3H)-one, Reprint Addresses Das, U (corresponding author), CSIR Natl Chem Lab, Div Organ Chem, Pune 411008, Maharashtra, India.; Das, U (corresponding author), Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

A metal-free organocatalytic system has been developed for highly efficient benzylic C-H oxygenations of cyclic ethers using oxygen as an oxidant. This oxidation reaction utilizes alpha-angelica lactone as a low cost/low molecular weight catalyst. The optimized reaction conditions allow the synthesis of valued isocoumarins and phthalides from readily available precursors in good yields. Mechanistic studies indicate that the reaction pathway likely involves a radical process via a peroxide intermediate.

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

Name: Isobenzofuran-1(3H)-one. Recently I am researching about 1,10-PHENANTHROLINE COMPLEXES; PHOTOOXIDATION; MECHANISM; NITRATE; LIGNIN, Saw an article supported by the Nuclear Decommissioning Authority; European Research Council (ERC) under the European UnionEuropean Research Council (ERC) [740311]; University of Edinburgh; EPSRCUK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC) [EP/N022122/1, EP/M010554/1]; Uppsala University, Sweden. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Arnold, PL; Purkis, JM; Rutkauskaite, R; Kovacs, D; Love, JB; Austin, J. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

Controlled, photocatalytic C-H bond activations are key reactions in the toolkits of the modern synthetic chemist. While it is known that the uranyl(VI) ion, [(UO2)-O-VI](2+), the environmentally dominant form of uranium, is photoactive, most literature examines its luminescent properties, neglecting its potential synthetic utility for photocatalytic C-H bond cleavage. Here, we synthesise and fully characterise an air-stable and hydrocarbon-soluble uranyl phenanthroline complex, [(UO2)-O-VI(NO3)(2)(Ph(2)phen)], U-Ph2phen, and demonstrate that it can catalytically abstract hydrogen atoms from a variety of organic substrates under visible light irradiation. We show that the commercially available parent complex, uranyl nitrate ([(UO2)-O-VI(NO3)(2)(OH2)(2)]center dot 4H(2)O; U-NO3), is also competent, but from electronic spectroscopy we attribute the higher rates and selectivity of U-Ph2phen to ligand-mediated electronic effects. Ketones are selectively formed over other oxygenated products (alcohols, etc.), and the catalytic oxidation of substrates containing a benzylic C-H position is particularly improved for U-Ph2phen. We also show uranyl-mediated photocatalytic C-C bond cleavage in a model lignin compound for the first time.

Name: Isobenzofuran-1(3H)-one. Bye, fridends, I hope you can learn more about C8H6O2, If you have any questions, you can browse other blog as well. See you lster.

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

In 2019 CHEM PHYS LETT published article about AQUEOUS-SOLUTION; FLUORESCENCE; MOLECULES; DYNAMICS; URACIL in [Tseplin, Evgeniy E.; Tseplina, Svetlana N.] Russian Acad Sci, Ufa Fed Res Ctr, Inst Mol & Crystal Phys, Prospekt Oktyabrya 151, Ufa 450075, Russia in 2019, Cited 37. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. Formula: C8H6O2

The optical absorption spectra of phthalide in polar (methanol) and nonpolar (n-hexane) solvents are recorded. The electronic phthalide spectrum was calculated by TDDFT B3LYP/6-311 + G(d, p) using the polarisable continuum model. Based on an analysis of calculation data and the displacement of absorption bands in a polar solvent, it was established that the absorption bands of phthalide at energies of 3.51 and 3.96 eV correspond to singlet-triplet transitions to the T-1 and T-2 states, respectively.

Welcome to talk about 87-41-2, If you have any questions, you can contact Tseplin, EE; Tseplina, SN or send Email.. Formula: C8H6O2

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

An article Ruthenium catalyzed alpha-methylation of sulfones with methanol as a sustainable C1 source WOS:000605450500016 published article about 1,4-CONJUGATE ADDITION; ASYMMETRIC-SYNTHESIS; GRIGNARD-REAGENTS; KETONES; ALKYLATION; ALCOHOLS; DERIVATIVES; OLEFINATION; INHIBITORS; NITRILES in [Song, Dingguo; Chen, Linlin; Li, Yujin; Liu, Tao; Yi, Xiao; Liu, Lei; Ling, Fei; Zhong, Weihui] Zhejiang Univ Technol, Coll Pharmaceut Sci, Hangzhou 310014, Peoples R China in 2021, Cited 57. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. Formula: C8H6O2

Methylation of sulfones, which have an alpha-CH bond, can be easily achieved via a one-step, Ru(II) catalyzed redox neutral reaction using methanol as a sustainable C1 building block. The reaction requires a stoichiometric amount of base and generates only water as a byproduct. A series of value-added methylated sulfones with various functional groups are produced under the reaction conditions from readily available substrates. Mechanism studies shows that a sulfone carbanion addition to an in situ generated aldehyde formed via catalytic dehydrogenation and subsequent catalyst mediated reduction of the alkene by hydrogen may be involved.

Formula: C8H6O2. Bye, fridends, I hope you can learn more about C8H6O2, If you have any questions, you can browse other blog as well. See you lster.

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

In 2019 CHEM COMMUN published article about AEROBIC OXIDATION; HYDROGEN-PEROXIDE; ALPHA-OXYGENATION; TERTIARY-AMINES; FERRIC NITRATE; METAL-FREE; C=C BONDS; ETHERS; PHOTOREDOX; ALDEHYDES in [Geng, Shasha; Xiong, Baojian; Zhang, Yun; Zhang, Juan; He, Yun; Feng, Zhang] Chongqing Univ, Chongqing Key Lab Nat Prod Synth & Drug Res, Sch Pharmaceut Sci, Chongqing 401331, Peoples R China; [Feng, Zhang] Chinese Acad Sci, Shanghai Inst Organ Chem, Key Lab Organofluorine Chem, Shanghai 200032, Peoples R China in 2019, Cited 56. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. Recommanded Product: Isobenzofuran-1(3H)-one

A ligand-free iron-catalyzed method for the oxygenation of benzylic sp(3) C-H bonds by molecular oxygen (1 atm) using a thiyl radical as a cocatalyst has been developed. This transformation provides a facile access to amides, esters and ketones from readily accessible corresponding amines, ethers and alkanes. It features high regioselectivity, mild oxidative conditions and excellent functional group compatibility, providing good opportunities to the site-selective functionalization of complex molecules. Preliminary mechanistic studies suggest that this reaction may not undergo a benzylic cation intermediate pathway and the carbonyl oxygen atom in the products may be derived from molecular oxygen.

Recommanded Product: Isobenzofuran-1(3H)-one. Bye, fridends, I hope you can learn more about C8H6O2, If you have any questions, you can browse other blog as well. See you lster.

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

Quality Control of Isobenzofuran-1(3H)-one. Recently I am researching about ENDOTHELIAL-CELLS; OXIDATIVE STRESS; SENKYUNOLIDE I; Z-LIGUSTILIDE; CHUANXIONG; INJURY; STROKE, Saw an article supported by the Shanghai Municipal Commission of Health and Family Planning [ZY3-CCCX-3-5001]; Science and Technology Commission of Shanghai MunicipalityScience & Technology Commission of Shanghai Municipality (STCSM) [14401901400, 15DZ2292000]; Expenditure Budget Program of Shanghai Municipal Education Commission [2016YSN24]; Xinglin Young Talent Program of Shanghai University of Traditional Chinese Medicine. Published in TAYLOR & FRANCIS LTD in ABINGDON ,Authors: Fang, X; Ma, Q; Zhang, KX; Yao, SY; Feng, Y; Jin, YS; Liang, S. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

As part of our continuing efforts to discover structurally interesting bioactive phthalide derivatives, 23 of them with a structure incorporating thiophen or halogens were designed and synthesized, 17 of which are previously unreported. In vitro antiplatelet aggregation activity screening showed that 14b could significantly inhibit platelet aggregation induced by arachidonic acid, compared with edaravone (p < 0.01). Meanwhile, oxidative damage models using SH-SY5Y and PC12 cells induced by H2O2 were built to evaluate the antioxidant activity of the phthalide derivatives. In SH-SY5Y cells, compared with aspirin, 1a significantly increased the relative cell survival rate (p < 0.05). Compared with edaravone, 1a (p < 0.01) and 15b (p < 0.05) significantly increased the relative cell survival rate. In PC12 cells, 1a (p < 0.01), 15b (p < 0.01), and 12a (p < 0.05) remarkably increased the cell survival rate compared with edaravone. The present study identified lead structures to develop potential anti-ischemic stroke agents. Quality Control of Isobenzofuran-1(3H)-one. Bye, fridends, I hope you can learn more about C8H6O2, If you have any questions, you can browse other blog as well. See you lster.

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

Yu, LY; Huang, HB; Wang, XH; Li, S; Feng, NX; Zhao, HM; Huang, XP; Li, YW; Li, H; Cai, QY; Mo, CH in [Yu, Le-Yi; Huang, He-Biao; Wang, Xiao-Hong; Li, Sha; Feng, Nai-Xian; Zhao, Hai-Ming; Huang, Xian-Pei; Li, Yan-Wen; Li, Hui; Cai, Quan-Ying; Mo, Ce-Hui] Jinan Univ, Coll Life Sci & Technol, Guangdong Prov Res Ctr Environm Pollut Control &, Guangzhou 510632, Guangdong, Peoples R China published Novel phosphate-solubilising bacteria isolated from sewage sludge and the mechanism of phosphate solubilisation in 2019, Cited 73. Category: benzofurans. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

A great amount of insoluble phosphate in agricultural soils is not available for crops. Three strains of bacteria (Bacillus megaterium YLYP1 Pseudumonas prosekii YLYP6 and Pseudomonas sp. YLYP29) isolated from activated sludge and soil could efficiently solubilise tricalcium phosphate. In particular, the novel strain P. prosekii YLYP6 produced 716 mg L-1 of available phosphate within 6 days under the optimal culture conditions [20 degrees C, pH 7.9, inoculum size of 0.5% (v:v)] determined by response surface methodology. P. prosekii YLYP6 demonstrated efficient phosphate solubilisation in response to broad variations in pH (5-9) and temperature (15-35 degrees C). The phosphate solubilisation curves of the strains fit well with a first-order kinetic model (R-2 > 0.939), with a halt-life of 1.51-5.94 d for 5.0 g L-1 calcium phosphate. Continuous culture experiments combined with scanning electron microscopic observations and gas chromatography-mass spectrometry analysis revealed that 2,3-dimethylfumaric acid, gluconic and N-butyl-tert-butylamine that were produced by P. prosekii YLYP6 were responsible for phosphate solubilisation by supplying H+ ions and organic anions. Efficient phosphate solubilisation in actual soil by P. prosekii YLYP6 demonstrated the strong application potential to reduce the use of chemical P fertilisers and the resulting agricultural nonpoint pollution. (C) 2018 Elsevier B.V. All rights reserved.

Category: benzofurans. Welcome to talk about 87-41-2, If you have any questions, you can contact Yu, LY; Huang, HB; Wang, XH; Li, S; Feng, NX; Zhao, HM; Huang, XP; Li, YW; Li, H; Cai, QY; Mo, CH or send Email.

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