Day: October 27, 2021

An article Quinine-derived thiourea promoted enantioselective Michael addition reactions of 3-substituted phthalides to maleimides WOS:000467500500016 published article about ASYMMETRIC CONJUGATE ADDITION; CARBOXYLIC-ACIDS; FACILE ACCESS; QUATERNARY; DIHYDRONAPHTHOQUINONES; BENZOFURAN-2(3H)-ONES; BENZOFURAN-2-ONES; STEREOCENTERS; DERIVATIVES; CYCLIZATION in [Wang, Jie; Li, Xin; Cheng, Jin-Pei] Nankai Univ, State Key Lab Elementoorgan Chem, Collaborat Innovat Ctr Chem Sci & Engn, Coll Chem, Tianjin 300071, Peoples R China in 2019, Cited 44. COA of Formula: C8H6O2. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2

A highly diastereoselective and enantioselective Michael addition/desymmetrization reaction of maleimides with prochiral 3- substituted phthalides catalyzed by quinine-derived bifunctional thiourea was realized. A broad range of the 3,3-disubstituted phthalides bearing vicinal quaternary-tertiary stereogenic centers were synthesized in moderate to good yields (up to 96%) with high diastereoselectivities (up to >19:1 dr) and enantioselectivities (up to 96:4 er).

COA of Formula: C8H6O2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Wang, J; Li, X; Cheng, JP or concate me.

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

Recommanded Product: 87-41-2. In 2020 CHEM COMMUN published article about NADH MODEL COMPOUNDS; ASYMMETRIC REDUCTION; CHIRAL 1,4-DIHYDROPYRIDINES; PYRIDINIUM SALTS; HYDRIDE TRANSFER; OXIDATION in [Ogawa, Narihito; Kosugi, Yuya; Takazawa, Takayuki] Meiji Univ, Dept Appl Chem, Kawasaki, Kanagawa 2148571, Japan; [Furukawa, Sei; Kanomata, Nobuhiro] Waseda Univ, Dept Chem & Biochem, Shinjuku Ku, Tokyo 1698555, Japan in 2020, Cited 22. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Magnesium hemithioacetates were used as model cysteine compounds to mimic natural hemithioacetals, and their biomimetic oxidation reactions using a model NAD(+) compound were investigated. Cyclic hemithioacetate was found to be the best substrate for the reaction with the model NAD(+) compound, which gave the corresponding NADH analog in excellent yield.

Recommanded Product: 87-41-2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Ogawa, N; Furukawa, S; Kosugi, Y; Takazawa, T; Kanomata, N or concate me.

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

Category: benzofurans. Recently I am researching about GRAPHITIC CARBON NITRIDE; PHOTOREDOX CATALYSIS; ALPHA-OXYGENATION; MOLECULAR-OXYGEN; SINGLET OXYGEN; BOND-CLEAVAGE; OXIDATION; ETHERS; COPPER; EFFICIENT, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21801030, 21672210]; Basic and Frontier Research Project of Chongqing [cstc2018jcyjAX0413, cstc2015jcyjA50022]; Venture & Innovation Support Program for Chongqing Overseas Returnees [cx2018060]. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Geng, PX; Tang, YR; Pan, GT; Wang, WT; Hu, JC; Cai, YF. The CAS is 87-41-2. Through research, I have a further understanding and discovery of Isobenzofuran-1(3H)-one

A metal-free heterogeneous photocatalytic system has been developed for highly efficient benzylic C-H oxygenations using oxygen as an oxidant. This visible light mediated oxidation reaction utilizes graphitic carbon nitride (g-C3N4) as a recyclable, nontoxic and low cost photocatalyst. Mild reaction conditions allow for the generation of synthetically and biologically valued isochromannones, phthalides, isoquinolinones, isoindolinones and xanthones from readily accessible alkyl aromatic precursors in good yields. The heterogeneous nature of the g-C3N4 catalytic system enables easy recovery and recycling as well as the use in multiple runs without loss of activity. The synthetic utility of this green methodology was further demonstrated by applying in bioactive and drug valued target syntheses.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Geng, PX; Tang, YR; Pan, GT; Wang, WT; Hu, JC; Cai, YF or concate me.. Category: benzofurans

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

COA of Formula: C8H6O2. 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.

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.

COA of Formula: C8H6O2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Geng, SS; Xiong, BJ; Zhang, Y; Zhang, J; He, Y; Feng, Z or concate me.

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. Recommanded Product: 87-41-2

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.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Du, T; Gao, RH; Deng, YF; Wang, C; Zhou, Q; Geng, YH or concate me.. Recommanded Product: 87-41-2

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

Authors Rysak, V; Dixit, R; Trivelli, X; Merle, N; Agbossou-Niedercorn, F; Vanka, K; Michon, C in ROYAL SOC CHEMISTRY published article about METAL-FREE REDUCTION; FRUSTRATED LEWIS PAIRS; H BOND ACTIVATION; CARBONYL-COMPOUNDS; CARBOXYLIC-ACIDS; IRIDIUM(III) METALLACYCLES; HOMOGENEOUS CATALYSIS; UNSYMMETRICAL ETHERS; SELECTIVE REDUCTION; SI-H in [Rysak, Vincent; Merle, Nicolas; Agbossou-Niedercorn, Francine; Michon, Christophe] Univ Lille, Univ Artois, UMR 8181 UCCS Unite Catalyse & Chim Solide, Cent Lille,CNRS, F-59000 Lille, France; [Dixit, Ruchi; Vanka, Kumar] Natl Chem Lab, Phys & Mat Chem Div, CSIR, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India; [Dixit, Ruchi] Acad Sci & Innovat Res AcSIR, Ghaziahad 201002, India; [Trivelli, Xavier] Univ Lille, Univ Artois, Cent Lille, FR 2638 IMEC Inst Michel Eugene Chevreul,CNRS,INR, F-59000 Lille, France; [Michon, Christophe] Univ Strasbourg, Univ Haute Alsace, Ecole Europeenne Chim Polymeres & Mat, CNRS,LIMA,UMR 7042, 25 Rue Becquerel, F-67087 Strasbourg, France in 2020, Cited 117. COA of Formula: C8H6O2. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2

We report the catalytic and transition metal-free reductive deoxygenation of esters to ethers through the use of a hydrosilane and a fluorinated borate BArF salt as a catalyst. Experimental and theoretical studies support the role of noncovalent interactions between the fluorinated catalyst, the hydrosilane and the ester substrate in the reaction mechanism.

COA of Formula: C8H6O2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Rysak, V; Dixit, R; Trivelli, X; Merle, N; Agbossou-Niedercorn, F; Vanka, K; Michon, C or concate me.

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

COA of Formula: C8H6O2. Authors Feng, XY; Pi, YH; Song, Y; Xu, ZW; Li, Z; Lin, WB in AMER CHEMICAL SOC published article about in [Feng, Xuanyu; Pi, Yunhong; Song, Yang; Xu, Ziwan; Lin, Wenbin] Univ Chicago, Dept Chem, Chicago, IL 60637 USA; [Pi, Yunhong; Li, Zhong] South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China in 2021, Cited 63. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2

We report here the construction of two metal-organic frameworks (MOFs), Zr-6-Cu/Fe-1 and Zr-6–Cu/Fe-2, by integrating earth-abundant cuprous photosensitizers (Cu-PSs) and Fe catalysts for photocatalytic aerobic oxidation. Site isolation and pore confinement stabilize both Cu-PSs and Fe catalysts, while the proximity between active centers facilitates electron and mass transfer. Upon visible light irradiation and using O-2 as the only oxidant, Zr-6-Cu/Fe-1 and Zr-6-Cu/ Fe-2 efficiently oxidize alcohols and benzylic compounds to afford corresponding carbonyl products with broad substrate scopes, high turnover numbers of up to 500 with a 9.4-fold enhancement over homogeneous analogues, and excellent recyclability in four consecutive runs. Control experiments, spectroscopic evidence, and computational studies revealed the photooxidation mechanism: oxidative quenching of [Cu-PS]* by O-2 affords [Cu-II-PS], which efficiently oxidizes Fe-III-OH to generate a hydroxyl radical for substrate oxidation. This work highlights the potential of MOFs in promoting earth-abundant metal-based photocatalysis.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Feng, XY; Pi, YH; Song, Y; Xu, ZW; Li, Z; Lin, WB or concate me.. COA of Formula: C8H6O2

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

Kang, HJ; Jung, Y; Kwon, JH in [Kang, Hyun-Joong; Jung, Yerin; Kwon, Jung-Hwan] Korea Univ, Div Environm Sci & Ecol Engn, 145 Anam Ro, Seoul 02841, South Korea published Changes in ecotoxicity of naphthalene and alkylated naphthalenes during photodegradation in water in 2019, Cited 65. COA of Formula: C8H6O2. The Name is Isobenzofuran-1(3H)-one. Through research, I have a further understanding and discovery of 87-41-2.

Crude oil released into the environment contains many polycyclic aromatic hydrocarbons (PAHs). Alkylated PAHs are more abundant than unsubstituted PAHs and their toxicity is also of serious concern. Among the various physical, chemical, and biological weathering processes of crude oils, photodegradation is one of the most important for determining the environmental fate of oil residues. In this study, the photodegradation rate constants of naphthalene and alkylated naphthalenes were determined under simulated laboratory conditions at different temperature. Changes in the luminescence inhibition of Aliivibrio fischeri, as an indicator of the baseline toxicity, were observed in photodegradation mixtures. The major transformation products were also identified by gas chromatography-mass spectrometry. The photodegradation of naphthalene and the eight alkylated naphthalenes was described well by pseudofirst-order kinetics regardless of experimental temperature. The measured toxicity of the reaction mixtures obtained by photodegradative weathering slightly increased initially and then decreased with further weathering. In all cases, the observed toxicity was greater than accounted for by the parent compounds, indicating that the photodegradation products also contributed significantly to the overall toxicity of the mixtures. The identified photodegradation products were mostly oxygenated compounds such as alcohols, aldehydes, ketones, and quinones, which warrant further investigation. (C) 2019 Elsevier Ltd. All rights reserved.

COA of Formula: C8H6O2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Kang, HJ; Jung, Y; Kwon, JH or concate me.

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

In 2019 PLOS ONE published article about NATURAL MELANIN; HUMIC ACIDS; BIOSYNTHESIS; IDENTIFICATION; OPTIMIZATION; METABOLITES; POLYMERS; SPECTRA; CULTURE in [Suwannarach, Nakarin; Kumla, Jaturong; Lumyong, Saisamorn] Chiang Mai Univ, Dept Biol, Fac Sci, Chiang Mai, Thailand; [Suwannarach, Nakarin; Kumla, Jaturong; Lumyong, Saisamorn] Chiang Mai Univ, Ctr Excellence Microbial Divers & Sustainable Uti, Chiang Mai, Thailand; [Watanabe, Bunta] Kyoto Univ, Inst Chem Res, Kyoto, Japan; [Matsui, Kenji] Yamaguchi Univ, Grad Sch Sci & Technol Innovat Agr, Yamaguchi, Japan; [Lumyong, Saisamorn] Royal Soc Thailand, Acad Sci, Bangkok, Thailand in 2019, Cited 61. 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

Melanin is a natural pigment that is produced by filamentous fungi. In this study, the endophytic species, Spissiomyces endophytica (strain SDBR-CMU319), produced a brownblack pigment in the mycelia. Consequently, the pigment was extracted from the dried fungal biomass. This was followed by pigment purification, characterization and identification. Physical and chemical characteristics of the pigment showed acid precipitation, alkali solubilization, decolorization with oxidizing agents, and insolubility in most organic solvents and water. The pigment was confirmed as melanin based on ultraviolet-visible spectroscopy, Fourier-transform infrared, and electron paramagnetic resonance spectra analyses. The analyses of the elemental composition indicated that the pigment possessed a low percentage of nitrogen, and therefore, was not 3,4-dihydroxyphenylalanine melanin. Inhibition studies involving specific inhibitors, both tricyclazole and phthalide, and suggest that fungal melanin could be synthesized through the 1,8-dihydroxynaphthalene pathway. The optimum conditions for fungal pigment production from this species were investigated. The highest fungal pigment yield was observed in glucose yeast extract peptone medium at an initial pH value of 6.0 and at 25 degrees C over three weeks of cultivation. This is the first report on the production and characterization of melanin obtained from the genus Spissiomyces.

SDS of cas: 87-41-2. About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Suwannarach, N; Kumla, J; Watanabe, B; Matsui, K; Lumyong, S or concate me.

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. Name: Isobenzofuran-1(3H)-one

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.

About Isobenzofuran-1(3H)-one, If you have any questions, you can contact Du, T; Gao, RH; Deng, YF; Wang, C; Zhou, Q; Geng, YH or concate me.. Name: Isobenzofuran-1(3H)-one

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