Category: benzofurans

Recently I am researching about PATHWAY CONTRIBUTES; STROKE; INJURY; NEUROGENESIS; LIGUSTILIDE; DEFICITS; KLOTHO, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81072636, 81473219]; Sichuan Science and Technology Programs [2014JY0151, 20185Z0015]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities; 111 Project of the National Ministry of Education [B18035]. Safety of Isobenzofuran-1(3H)-one. Published in ELSEVIER in AMSTERDAM ,Authors: Gan, YM; Liu, DL; Chen, C; Duan, W; Yang, YX; Du, JR. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

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.

Safety of Isobenzofuran-1(3H)-one. Welcome to talk about 87-41-2, If you have any questions, you can contact Gan, YM; Liu, DL; Chen, C; Duan, W; Yang, YX; Du, JR or send Email.

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

An article Synthesis of Phthalides and alpha,beta-butenolides by Transition Metal-Catalyzed Activation of CH Bonds WOS:000460805900170 published article about ONE-STEP SYNTHESIS; BENZOIC-ACIDS; CARBOXYLIC-ACIDS; SOFT ACIDS; OXIDASE CATALYSIS; INTERNAL ALKYNES; H ALKENYLATIONS; BASES HSAB; ALDEHYDES; KETONES in [Renzetti, Andrea; Fukumoto, Kozo] Univ Ryukyus, Fac Educ, 1 Senbaru, Nishihara, Okinawa 9030213, Japan in 2019, Cited 68. Computed Properties of C8H6O2. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2

Phthalides and ,-butenolides are two related classes of oxygenated heterocycles with a wide range of biological activities. An innovative strategy to prepare these compounds is based on CH bond functionalization reactions, in which two simple, unfunctionalized molecules are coupled together with cleavage of a CH bond and formation of a CX bond (X=C or heteroatom). This paper reviews the methods for the synthesis of phthalides and ,-butenolides by CH bond functionalization from non-halogenated starting materials. Over 30 methods are reported, mostly developed during the past ten years.

Computed Properties of C8H6O2. Welcome to talk about 87-41-2, If you have any questions, you can contact Renzetti, A; Fukumoto, K or send Email.

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Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Application In Synthesis of Isobenzofuran-1(3H)-one. Wei, Q; Yang, JB; Li, L; Su, YL; Wang, AG in [Wei, Qian; Yang, Jianbo; Li, Li; Su, Yalun; Wang, Aiguo] Chinese Acad Med Sci, Peking Union Med Coll, Inst Mat Med, State Key Lab Bioact Subst & Funct Nat Med, Beijing 100050, Peoples R China; [Yang, Jianbo] Natl Inst Food & Drug Control, Inst Control Chinese Tradit Med & Ethn Med, Beijing 100050, Peoples R China published Novel phthalide dimers from the aerial parts of Ligusticum sinense Oliv cv. Chaxiong in 2019, Cited 21. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Five new phthalide dimers, chaxiongnolides C-G (1-5), the two enantiomers of riligustilide (6a and 6b) and tokinolide B (7) were isolated from the aerial parts of Ligusticum sinense Oliv cv. Chaxiong. The structures of 1-5 were elucidated through extensive spectroscopic analysis, and the relative configurations of compounds 2 and 3 were further confirmed by an X-ray diffraction experiment. The absolute configurations of 1-3 were assigned by comparing calculated and experimental ECD spectra. The ECD exciton chirality method was used to confirm the absolute configurations of compounds 4, 5, 6a and 6b. Compounds 1-3 are the first dimeric phthalides to be reported that are comprising a sedanolide unit. The compounds were evaluated in vitro for their cytotoxic activity against select human cell lines.

Application In Synthesis of Isobenzofuran-1(3H)-one. Welcome to talk about 87-41-2, If you have any questions, you can contact Wei, Q; Yang, JB; Li, L; Su, YL; Wang, AG or send Email.

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

Yu, CB; Wang, HD; Song, B; Shen, HQ; Fan, HJ; Zhou, YG in [Yu, Chang-Bin; Wang, Heng-Ding; Song, Bo; Shen, Hong-Qiang; Fan, Hong-Jun; Zhou, Yong-Gui] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China; [Wang, Heng-Ding] Univ Chinese Acad Sci, Beijing 100049, Peoples R China published Reversal of diastereoselectivity in palladium-arene interaction directed hydrogenative desymmetrization of 1,3-diketones in 2020, Cited 57. Name: Isobenzofuran-1(3H)-one. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

For the metal-catalyzed asymmetric hydrogenation of alpha-substituted ketones, cis reductive products are generally obtained due to steric hindrance of substituents. Herein, an unprecedented trans reductive products were observed in palladium-catalyzed hydrogenative desymmetrization of cyclic and acyclic 1,3-diketones, providing the chiral trans beta-hydroxy ketones with two adjacent stereocenters including one alpha-tertiary or quaternary stereocenter with high enantioselectivity and diastereoselectivity. Mechanistic studies and DFT calculations suggested that the rarely observed diastereoselectivity reversal is ascribed to the charge-charge interaction between the palladium and aromatic ring of the substrate, which could not only result in the reversal of the diastereoselectivity, but also improve the reactivity.

Name: Isobenzofuran-1(3H)-one. Welcome to talk about 87-41-2, If you have any questions, you can contact Yu, CB; Wang, HD; Song, B; Shen, HQ; Fan, HJ; Zhou, YG or send Email.

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

Recently I am researching about C-H ALKYNYLATION; BRONSTED ACID; AMINE OXIDASE; DERACEMISATION; RACEMATE, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21971148]; Shenzhen Special Funds [JCYJ20190807093805572]. Published in ELSEVIER SCIENCE INC in NEW YORK ,Authors: Chen, XH; Zhao, R; Liu, ZQ; Sun, ST; Ma, YG; Liu, QY; Sun, X; Liu, L. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one. Application In Synthesis of Isobenzofuran-1(3H)-one

Chiral alpha-substituted 1,3-dihydroisobenzofurans are key scaffolds in a number of bioactive natural products and synthetic pharmaceuticals. However, catalytic asymmetric approaches have been rarely developed. Here, a redox deracemization technology is adopted to address the catalytic asymmetric synthesis. A broad range of alpha-aryl substituted 1,3-dihydroisobenzofurans are effectively deracemized in high efficiency with excellent ee. alpha-Alkynyl substituted ethers were also compatible with the deracemization technology. (c) 2021 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

Application In Synthesis of Isobenzofuran-1(3H)-one. Welcome to talk about 87-41-2, If you have any questions, you can contact Chen, XH; Zhao, R; Liu, ZQ; Sun, ST; Ma, YG; Liu, QY; Sun, X; Liu, L or send Email.

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Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

In 2019 HETEROCYCLES published article about CONDITION PHTHALIMIDINE SYNTHESIS; DUAL SYNTHETIC AUXILIARIES; 1,2,3-1H-BENZOTRIAZOLE; 2-MERCAPTOETHANOL; ISOINDOLINONES; MECHANISM in [Takahashi, Ichiro; Nishiwaki, Yoshinori; Saitoh, Kenta; Matsunaga, Takatoshi; Aratake, Akihiro; Morita, Toshio] Univ Fukui, Fac Engn, Dept Appl Chem & Biotechnol, Bunkyo Ku, Fukui 9108507, Japan; [Hosoi, Shinzo] Kyoto Pharmaceut Univ, Res Ctr Pharm Educ, Yamashina Ku, 5 Nakauchi Cho, Kyoto 6078414, Japan in 2019, Cited 38. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. COA of Formula: C8H6O2

Direct condensation between phthalide and a primary amine in the presence of Lewis acid was achieved for the first time in organic solvent-diluted reaction systems catalyzed by GaCl3. The peripheral aspects of this reaction is discussed.

COA of Formula: C8H6O2. Welcome to talk about 87-41-2, If you have any questions, you can contact Takahashi, I; Nishiwaki, Y; Saitoh, K; Matsunaga, T; Aratake, A; Morita, T; Hosoi, S or send Email.

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Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

COA of Formula: C8H6O2. Tzirakis, MD; Malliaros, NG; Orfanopoulos, M in [Tzirakis, Manolis D.; Malliaros, Nikitas G.; Orfanopoulos, Michael] Univ Crete, Dept Chem, Voutes Campus, Iraklion 71003, Crete, Greece published Photochemical Reaction of o-Phthalaldehyde with Fullerene C-60: The Stimulus for the Phthalide Additions to C-60 in 2019, Cited 18. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

A new, simple, and rapid photochemical reaction of o-phthalaldehyde with C-60 has been disclosed. This reaction afforded exclusively the unanticipated C-60-phthalide derivative 11 in good yield. The formation of this product is consistent with the intervention of a key free-radical intermediate -a benzylic radical- in the course of the reaction. The structure of 11 has been determined by the combined use of experimental and theoretical NMR studies. In the course of this study we further disclosed a new mode of radical reactivity of C-60 with a series of substituted phthalides (2, 15-17) catalyzed by tetrabutylammonium decatungstate.

COA of Formula: C8H6O2. Welcome to talk about 87-41-2, If you have any questions, you can contact Tzirakis, MD; Malliaros, NG; Orfanopoulos, M or send Email.

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

SDS of cas: 87-41-2. Recently I am researching about ASYMMETRIC BINARY ACID; 3-SUBSTITUTED PHTHALIDES; TRANSFER HYDROGENATION; RELAY CATALYSIS; TRANSFORMATION; DERIVATIVES; FUSCINARIN; CHEMISTRY; ACETALS; ETHERS, Saw an article supported by the NNSFCNational Natural Science Foundation of China (NSFC) [21971120, 21933008]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Pan, YL; Zheng, HL; Wang, J; Yang, C; Li, X; Cheng, JP. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

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.

SDS of cas: 87-41-2. Welcome to talk about 87-41-2, If you have any questions, you can contact Pan, YL; Zheng, HL; Wang, J; Yang, C; Li, X; Cheng, JP or send Email.

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

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. Safety of Isobenzofuran-1(3H)-one, 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.

Safety of Isobenzofuran-1(3H)-one. Welcome to talk about 87-41-2, If you have any questions, you can contact Otvos, SB; Kappe, CO or send Email.

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

In 2020 ANGEW CHEM INT EDIT published article about CHANNEL ORGANIC SEMICONDUCTORS; PI-CONJUGATED MATERIALS; HIGH-PERFORMANCE; BUILDING-BLOCK; THIOPHENE-S,S-DIOXIDIZED INDOPHENINE; QUINOIDAL OLIGOTHIOPHENES; SIDE-CHAIN; MOLECULES; POLYMERS; ANALOGS in [Du, Tian; Gao, Ruiheng; Deng, Yunfeng; Wang, Cheng; Zhou, Qian; Geng, Yanhou] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China; [Deng, Yunfeng; Geng, Yanhou] Tianjin Univ, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China; [Deng, Yunfeng; Geng, Yanhou] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China; [Geng, Yanhou] Tianjin Univ, Joint Sch Natl Univ Singapore & Tianjin Univ, Int Campus, Fuzhou 350207, Fujian, Peoples R China in 2020, Cited 46. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2. COA of Formula: C8H6O2

A series of 1,3-indandione-terminated pi-conjugated quinoids were synthesized by alkoxide-mediated rearrangement reaction of the respective alkene precursors, followed by air oxidation. This new protocol allows access to quinoidal compounds with variable termini and cores. The resulting quinoids all show LUMO levels below -4.0 eV and molar extinction coefficients above 10(5) L mol(-1) cm(-1). The optoelectronic properties of these compounds can be regulated by tuning the central cores as well as the aryl termini ascribed to the delocalized frontier molecular orbitals over the entire molecular skeleton involving aryl termini. n-Channel organic thin-film transistors with electron mobility of up to 0.38 cm(2) V-1 s(-1) were fabricated, showing the potential of this new class of quinoids as organic semiconductors.

COA of Formula: C8H6O2. Welcome to talk about 87-41-2, If you have any questions, you can contact Du, T; Gao, RH; Deng, YF; Wang, C; Zhou, Q; Geng, YH or send Email.

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