Day: October 20, 2021

Gan, YM; Liu, DL; Chen, C; Duan, W; Yang, YX; Du, JR in [Gan, Yu-Miao; Liu, Dong-Ling; Yang, Yu-Xin; Du, Jun-Rong] Sichuan Univ, Key Lab Drug Targeting & Drug Delivery Syst, Educ Minist & Sichuan Prov, West China Sch Pharm,Dept Pharmacol,Sichuan Engn, Chengdu 610041, Peoples R China; [Gan, Yu-Miao; Liu, Dong-Ling; Yang, Yu-Xin; Du, Jun-Rong] Sichuan Univ, Sichuan Res Ctr Drug Precis Ind Technol, West China Sch Pharm, Chengdu 610041, Peoples R China; [Chen, Chu] Sichuan Acad Chinese Med Sci, Sichuan Prov Key Lab Qual & Innovat Res Chinese M, Chengdu 610041, Peoples R China; [Duan, Wei] Deakin Univ, Sch Med, Waurn Ponds, Vic, Australia; [Duan, Wei] Deakin Univ, Ctr Mol & Med Res, Waurn Ponds, Vic, Australia; [Yang, Yu-Xin] PRIVIS TECHNOL CO LTD, Chengdu 610041, Peoples R China published Phthalide derivative CD21 alleviates cerebral ischemia-induced neuroinflammation: Involvement of microglial M2 polarization via AMPK activation in 2020, Cited 47. SDS of cas: 87-41-2. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Microglia can be activated to become the classic phenotype (M1) or alternative phenotype (M2), which play an important role in regulating neuroinflammatory response and tissue repair after ischemic stroke. CD21, a novel phthalide derivative, is a potential neuroprotectant against ischemic brain injury. The present study further investigated the effects of CD21 on post-ischemic microglial polarization and the underlying mechanisms. Transient middle cerebral artery occlusion (tMCAO) was used as a mouse model of ischemic stroke, while BV2 cells stimulated with conditioned medium collected from oxygen-glucose deprivation-treated HT22 cells were used in in vitro ischemic studies. The current results showed that CD21 dose-dependently and significantly improved neurological outcomes in tMCAO mice. Biochemical analyses revealed that CD21 decreased the expression of M1 phenotype markers (CD86, interleukin-1 beta and inducible nitric oxide synthase) and increased the expression of M2 phenotype markers (CD206, interleukin-10 and YM1/2) in both ischemic brain tissues and BV2 cells. Meanwhile, CD21 decreased the production of proinflammatory cytokines (interleukin-1 beta, interleukin-6 and tumor necrosis factor-alpha), promoted the release of the antiinflammatory cytokine (interleukin-10), and enhanced the phosphorylation of adenosine 5′-monophosphate-activated protein kinase (AMPK) in ischemic brain tissue and BV2 cells. Furthermore, the AMPK inhibitor (compound C) reversed these effects of CD21 in BV2 cells. These findings indicate that CD21 alleviates post-ischemic neuroinflammation through induction of microglial M2 polarization that is at least in part medicated by AMPK activation, suggesting that CD21 may be a promising candidate for protecting against ischemic brain injury.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Gan, YM; Liu, DL; Chen, C; Duan, W; Yang, YX; Du, JR or concate me.. SDS of cas: 87-41-2

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

Recently I am researching about ENANTIOSELECTIVE SYNTHESIS; ORGANOCATALYSTS; BOND; 1,3-DIHYDROISOBENZOFURANS; STRATEGY; CASCADE, Saw an article supported by the National Research Foundation of KoreaNational Research Foundation of Korea [NRF-2020R1A2C1005438]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Son, EC; Kim, SY; Kim, SG. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one. COA of Formula: C8H6O2

Organocatalytic enantioselective intramolecular oxa-Michael reactions of benzyl alcohol bearing alpha,beta-unsaturated carbonyls as Michael acceptors are presented herein. Using cinchona squaramide-based organocatalyst, enones as well as alpha,beta-unsaturated esters containing benzyl alcohol provided their corresponding 1,3-dihydroisobenzofuranyl-1-methylene ketones and 1,3-dihydroisobenzofuranyl-1-methylene esters in excellent yields with high enantioselectivities. In addition, enantioenriched 1,3-dihydroisobenzofuranyl-1-methylene ketone could be obtained from the Wittig/oxa-Michael reaction cascade of 1,3-dihydro-2-benzofuran-1-ol.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Son, EC; Kim, SY; Kim, SG or concate me.. COA of Formula: C8H6O2

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

Formula: C8H6O2. Pan, YL; Zheng, HL; Wang, J; Yang, C; Li, X; Cheng, JP in [Pan, Yu-Liang; Zheng, Han-Liang; Wang, Jie; Yang, Chen; Li, Xin; Cheng, Jin-Pei] Nankai Univ, State Key Lab Elementoorgan Chem, Coll Chem, Tianjin 300071, Peoples R China published Enantioselective Allylation of Oxocarbenium Ions Catalyzed by Bi(OAc)(3)/Chiral Phosphoric Acid in 2020, Cited 81. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Phthalides as the crucial core skeletons are found extensively in natural products and biological active molecules. Herein we disclose an asymmetric allylation of 3-hydroxyisoben-zofuran-1(3H)-ones with boron allylation reagents to construct chiral phthalide derivatives. The simple Bi(OAc)(3)/chiral phosphoric acid catalytic system proves to be efficient in this method, delivering the desired chiral 3-allylisobenzofuran-1(3H)-ones in good yields (up to 99%) and high enantioselectivities (up to 99.5:0.5 e.r.) under mild conditions. The large-scale reaction and diverse transformations of products to various scaffolds with potential biological activities render it more attractive. Moreover, the mechanism was preliminarily explored by control reactions, mass spectrometry, deuterium experiment, and DFT calculations.

Formula: C8H6O2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Pan, YL; Zheng, HL; Wang, J; Yang, C; Li, X; Cheng, JP or concate me.

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

Recently I am researching about REAGENTS; FUNCTIONALIZATION; REACTIVITY; CHEMISTRY, Saw an article supported by the Ministry of Education, Culture, Sports, Science and Technology of JapanMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT) [G19K05469]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Nishiguchi, Y; Moriyama, K. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one. Recommanded Product: 87-41-2

We developed a method for the preparation of (diacetoxyiodo)-2-(N-alkylamido)benzene as an aniline-type hypervalent iodine(III). We also achieved direct cyclizations via C-H bond abstraction, such as the Hofmann-Loffler-Freytag reaction, a direct amination, and a direct lactonization, using the aniline-type hypervalent iodine(III) to obtain corresponding products in high yields.

Recommanded Product: 87-41-2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Nishiguchi, Y; Moriyama, K or concate me.

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

Recently I am researching about N-HETEROCYCLIC CARBENE; EFFICIENT CATALYSTS; BASIS-SETS; SELECTIVE HYDROGENATION; MOLECULAR CALCULATIONS; CARBOXYLIC ESTERS; COMPLEXES; ALCOHOLS; REDUCTION; ACID, Saw an article supported by the National Science FoundationNational Science Foundation (NSF) [CHE-1665144, CHE-1726308]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Le, L; Liu, JC; He, TY; Malek, JC; Cervarich, TN; Buttner, JC; Pham, J; Keith, JM; Chianese, AR. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one. Safety of Isobenzofuran-1(3H)-one

We report the conversion of a series of CNN-pincer-ruthenium complexes Ru(CNN)HCl(CO) to a CC-chelated form Ru(CC)(PR3)(2)H(CO) on reaction with sodium tert-butoxide and monodentate phosphines. When the phosphine is triphenylphosphine, cis-phosphine complexes form at room temperature, which convert to the trans isomer at elevated temperatures. When the phosphine is tricyclohexylphosphine, only the trans-phosphine isomer is observed. The CC-chelated complexes are active catalysts for the hydrogenation of esters, without the need for added base. The ligand structure-activity relationship in the series of CC-chelated complexes mirrors that in the precursor CNN-Ru complexes, potentially indicating a common catalytic mechanism. Density functional theory calculations establish a plausible mechanism for the CNN-to-CC rearrangement and demonstrate that this rearrangement is potentially reversible under the conditions of ester hydrogenation catalysis.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Le, L; Liu, JC; He, TY; Malek, JC; Cervarich, TN; Buttner, JC; Pham, J; Keith, JM; Chianese, AR or concate me.. Safety of Isobenzofuran-1(3H)-one

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

I found the field of Chemistry very interesting. Saw the article Unexpected CNN-to-CC Ligand Rearrangement in Pincer-Ruthenium Precatalysts Leads to a Base-Free Catalyst for Ester Hydrogenation published in 2019. Name: Isobenzofuran-1(3H)-one, Reprint Addresses Keith, JM; Chianese, AR (corresponding author), Colgate Univ, Dept Chem, 13 Oak Dr, Hamilton, NY 13346 USA.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

We report the conversion of a series of CNN-pincer-ruthenium complexes Ru(CNN)HCl(CO) to a CC-chelated form Ru(CC)(PR3)(2)H(CO) on reaction with sodium tert-butoxide and monodentate phosphines. When the phosphine is triphenylphosphine, cis-phosphine complexes form at room temperature, which convert to the trans isomer at elevated temperatures. When the phosphine is tricyclohexylphosphine, only the trans-phosphine isomer is observed. The CC-chelated complexes are active catalysts for the hydrogenation of esters, without the need for added base. The ligand structure-activity relationship in the series of CC-chelated complexes mirrors that in the precursor CNN-Ru complexes, potentially indicating a common catalytic mechanism. Density functional theory calculations establish a plausible mechanism for the CNN-to-CC rearrangement and demonstrate that this rearrangement is potentially reversible under the conditions of ester hydrogenation catalysis.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Le, L; Liu, JC; He, TY; Malek, JC; Cervarich, TN; Buttner, JC; Pham, J; Keith, JM; Chianese, AR or concate me.. Name: Isobenzofuran-1(3H)-one

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

I found the field of Chemistry very interesting. Saw the article Syntheses of o-iodobenzyl alcohols-BODIPY structures as potential precursors of bimodal tags for positron emission tomography and optical imaging published in 2019. COA of Formula: C8H6O2, Reprint Addresses Fouquet, E; Hermange, P (corresponding author), Univ Bordeaux, CNRS, Bordeaux INP, ISM,UMR 5255, 351 Cours Liberat, F-33405 Talence, France.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

Aiming the faster development from bench to bedside of new potential tracers, multimodal tracers for positron emission tomography (PET) and optical imaging (OI) have emerged as a very promising tool. Indeed, they combine the simplicity of use of optical techniques for in vitro/in vivo pre-clinical studies with the various clinical possibilities offered by PET imaging using their radioactive versions. In this context, the preparation of new tags detectable by fluorescence imaging and potentially suitable for PET imaging after a last-step C-11-labeling of the corresponding precursor has been investigated. Various designs and syntheses were explored by linking o-iodobenzyl alcohols and tetramethyl-BODIPY moieties together. Among them, the most promising structure was produced in 30% yield over five steps from a commercially available and inexpensive starting material. (C) 2019 Elsevier Ltd. All rights reserved.

COA of Formula: C8H6O2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Christine, T; Tabey, A; Cornilleau, T; Fouquet, E; Hermange, P or concate me.

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

I found the field of Chemistry very interesting. Saw the article Efficient synthesis of N ‘-benzylidene-2-hydroxymethylbenzohydrazides from the one-pot reaction of phthalide, hydrazine and aldehydes published in 2019. Product Details of 87-41-2, Reprint Addresses Ablajan, K (corresponding author), Xinjiang Univ, Key Lab Oil & Gas Fine Chem, Minist Educ & Xinjiang Uyghur Autonomous Reg, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China.. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

We report an efficient, catalyst-free, one-pot synthesis of (E)-N ‘-benzylidene-2-(hydroxymethyl)benzohydrazide derivatives by the one-pot reaction of phthalide, hydrazine hydrate and aldehyde. Advantages of this synthetic approach include mild reaction conditions and environmentally friendly nature, and the ability to provide a wide range of desired compounds in moderate to excellent yields. Graphic abstract Here we introduce a green and efficient one-pot three-component protocol for the synthesis of (E)-N ‘-benzylidene-2-(hydroxymethyl)benzohydrazide derivatives in ethanol without any catalyst. [GRAPHICS] .

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Alifu, Z; Nizhamu, M; Ablajan, K or concate me.. Product Details of 87-41-2

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

Recently I am researching about PEROXIDE-INDUCED DAMAGE; OXIDATIVE STRESS; 3-SUBSTITUTED ISOCOUMARINS; CELLS; CHEMISTRY, Saw an article supported by the Minas Gerais Funding Foundation Fapemig [APQ-00848-14]. Published in PERGAMON-ELSEVIER SCIENCE LTD in OXFORD ,Authors: Teixeira, AD; Teixeira, RR; Ribeiro, IML; Pereira, WL; Manhabosco, TM; de Brito, ACF; Oliveira, LAM; Nogueira, KDPC. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one. Recommanded Product: 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. Recommanded Product: Isobenzofuran-1(3H)-one. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Teixeira, AD; Teixeira, RR; Ribeiro, IML; Pereira, WL; Manhabosco, TM; de Brito, ACF; Oliveira, LAM; Nogueira, KDPC or concate me.

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

HPLC of Formula: C8H6O2. In 2020 CHEM ENG J published article about VOLATILE ORGANIC-COMPOUNDS; ENHANCED PHOTOCATALYTIC ACTIVITY; VISIBLE-LIGHT PHOTOCATALYSIS; TOTAL-ENERGY CALCULATIONS; TITANIUM-DIOXIDE; CATALYTIC COMBUSTION; INDOOR AIR; OXIDATION; PHOSPHATE; REMOVAL in [Wang, Zhuang; Mahmood, Asad; Xie, Xiaofeng; Wang, Xiao; Sun, Jing] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China; [Wang, Zhuang; Qiu, Hanxun] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, 516 Jungong Rd, Shanghai 200093, Peoples R China in 2020, Cited 75. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

For the oxide-based photocatalysts, polyoxylic acid modification can affect their adsorption/desorption properties and further regulate photocatalytic reaction pathway, which is crucial for enhancing photocatalytic activity and selectivity. Herein, phosphoric acid modified TiO2 was synthesized by a facile impregnation-calcination method for photocatalytic degradation of gaseous o-xylene. According to FTIR, XPS, and EDS analysis, phosphoric acid was anchored on the surface of TiO2 successfully. The surface P atomic percentages for PT1 was 2.45%. The as-prepared phosphoric acid modified TiO2 (PTx) had a photocatalytic performance superior to that of commercial TiO2 and unmodified TiO2 (PT0), with increasing by 2.2 times at most. Interestingly, the phosphoric acid molecules strongly adsorbed on anatase TiO2 surface by forming H-O-2C and =O-Ti-5C chemical bonds according to the first principle calculations, which changed TiO2 surface properties (specific surface area and surface negative electrostatic field) and further improved adsorption and charge carrier separation and transfer, thus improving the photocatalytic activity. Additionally, according to the intermediates results, the relative abundance of intermediates shows obvious difference. Acetone was detected as the most abundant intermediates during o-xylene degradation for PT0, whereas that was o-methyl benzaldehyde for PT1, which could be ascribed to the difference of surface adsorption configuration of o-xylene. According to the temperature-programmed desorption (TPD) results, the surface modified by phosphoric acid could change the o-xylene adsorption configuration to favor its methyl oxidation (standing configuration), whereas the unmodified surface could be more favorable to the benzene ring-open reaction (lying configuration). This work will deepen the understanding of the relevance of surface modification and surface photocatalytic reaction, which also provides a feasible strategy to improve photocatalytic selectivity.

HPLC of Formula: C8H6O2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Wang, Z; Mahmood, A; Xie, XF; Wang, X; Qiu, HX; Sun, J or concate me.

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