Category: 2005-10-9

An article Memory of Chirality in Flow Electrochemistry: Fast Optimisation with DoE and Online 2D-HPLC WOS:000497558400001 published article about ACID; CHEMISTRY; OXIDATION; STRATEGY; SYSTEM in [Santi, Micol; Seitz, Jakob; Cicala, Rossana; Hardwick, Tomas; Ahmed, Nisar; Wirth, Thomas] Cardiff Univ, Sch Chem, Main Bldg,Pk Pl, Cardiff CF10 3AT, S Glam, Wales in 2019.0, Cited 60.0. Computed Properties of C13H8O2. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

Amino acid derivatives undergo non-Kolbe electrolysis to afford enantiomerically enriched alpha-alkoxyamino derivatives through intermediate chiral carbenium ions. The products contain N,O-acetals which are important structural motifs found in bioactive natural products. The reaction is performed in a continuous flow electrochemical reactor coupled to a 2D-HPLC for immediate online analysis. This allowed a fast screening of temperature, electrode material, current, flow-rate and concentration in a DoE approach. The combination with online HPLC demonstrates that also stereoselective reactions can benefit from a hugely accelerated optimisation by combining flow electrochemistry with multidimensional analysis.

Computed Properties of C13H8O2. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Santi, M; Seitz, J; Cicala, R; Hardwick, T; Ahmed, N; Wirth, T or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recommanded Product: 6H-Benzo[c]chromen-6-one. I found the field of Pharmacology & Pharmacy; Chemistry very interesting. Saw the article Bridged-Selective Intramolecular Diels-Alder Reactions in the Synthesis of Bicyclo[2.2.2]octanes published in 2020.0, Reprint Addresses Matsuo, J (corresponding author), Kanazawa Univ, Grad Sch Med Sci, Div Pharmaceut Sci, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan.. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one.

Regioselectivity for intramolecular Diels-Alder (IMDA) reactions of 6-acetoxy-6-alkenylcyclohexa-2,4-dien-1-ones that were formed by oxidation of 2-alkenylphenols with lead tetraacetate in acetic acid were studied. Bridged regioselectivity was observed in the IMDA reactions of 6-acetoxy-6-alkenylcyclohexa-2,4-dien-1-ones having a dienophile part which could conjugate with an aromatic group. Bridged seven-and eight-membered rings and bicyclo[2.2.2]octane skeletons were constructed by the present IMDA reactions. Density functional theory (DFT) calculations suggested that conjugation of the dienophile with neighboring aromatic groups lowered the highest occupied molecular orbital-lowest unoccupied molecular orbital (HOMO-LUMO) energy gap and preceded bridged [4 + 2] adducts.

Recommanded Product: 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Hanashima, M; Matsumura, T; Asaji, Y; Yoshimura, T; Matsuo, J or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Pyrimidopteridine N-Oxide Organic Photoredox Catalysts: Characterization, Application and Non-Covalent Interaction in Solid State WOS:000462057300011 published article about ELECTRON-TRANSFER PROCESS; Z ISOMERIZATION; PHOTOOXIDATIVE DECARBOXYLATION; PHOTOCATALYTIC E; PI INTERACTIONS; ACTIVATION; OXIDATION; CLEAVAGE in [Hauptmann, Richy; Petrosyan, Andranik; Cordero, Miguel A. Argueello; Surkus, Annette-E; Pospech, Jola] Univ Rostock, Leibniz Inst Catalysis, Albert Einstein Str 29a, D-18059 Rostock, Germany; [Fennel, Franziska; Cordero, Miguel A. Argueello] Univ Rostock, Inst Phys, Dynam Mol Syst, Albert Einstein Str 23-24, D-18059 Rostock, Germany in 2019.0, Cited 33.0. Name: 6H-Benzo[c]chromen-6-one. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

Herein we report the photo- and electrochemical characterization of pyrimidopteridine N-oxide-based heterocycles. The potential of their application as organic photoredox catalysts is showcased in the photomediated contra-thermodynamic E -> Z isomerization of cinnamic acid derivatives and oxidative cyclization of 2-phenyl benzoic acid to benzocoumarin using molecular oxygen as a mild oxidant. Furthermore, unprecedented intermolecular non-covalent n-pi-hole interactions in solid state are discussed based on crystallographic and theoretical data.

Name: 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Hauptmann, R; Petrosyan, A; Fennel, F; Cordero, MAA; Surkus, AE; Pospech, J or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recently I am researching about C-H FUNCTIONALIZATION; CARBON-DIOXIDE; DUAL CATALYSIS; DRIVEN CARBOXYLATION; UNACTIVATED PRIMARY; BUILDING-BLOCK; BONDS; HALIDES; ACIDS; HYDROCARBOXYLATION, Saw an article supported by the DST, SERB, Government of India via the Ramanujan fellowship [SR/S2/RJN-97/2012]; UGCUniversity Grants Commission, India; CSIRCouncil of Scientific & Industrial Research (CSIR) – India; DSTDepartment of Science & Technology (India); DST, SERB, Government of India, via the Extramural Research Grant [EMR/2014/000469]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Bhunia, SK; Das, P; Nandi, S; Jana, R. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one. Name: 6H-Benzo[c]chromen-6-one

We report herein a visible-light-promoted, highly practical carboxylation of readily accessible aryl triflates at ambient temperature and a balloon pressure of CO2 by the combined use of palladium and photoredox Ir(III) catalysts. Strikingly, the stoichiometric metallic reductant is replaced by a nonmetallic amine reductant providing an environmentally benign carboxylation process. In addition, one-pot synthesis of a carboxylic acid directly from phenol and modification of estrone and concise synthesis of pharmaceutical drugs adapalene and bexarotene have been accomplished via late-stage carboxylation reaction. Furthermore, a parallel decarboxylation-carboxylation reaction has been demonstrated in an H-type closed vessel that is an interesting concept for the strategic sector. Spectroscopic and spectroelectrochemical studies indicated electron transfer from the Ir(III)/DIPEA combination to generate aryl carboxylate and Pd(0) for catalytic turnover.

About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Bhunia, SK; Das, P; Nandi, S; Jana, R or concate me.. Name: 6H-Benzo[c]chromen-6-one

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Palladium-Catalyzed Site-Selective Benzocylization of Aromatic Acids with o-Fluoro-Substituted Diaryliodonium Salts toward 3,4-Benzocoumarins WOS:000543669800036 published article about C-F BOND; H DUAL ACTIVATION; CASCADE ANNULATION; CARBOXYLIC-ACIDS; ARYL MIGRATION; ARYLATION; ACCESS; DERIVATIVES; EXTENSION; NITRILES in [Pan, Cheng; Wang, Limin; Han, Jianwei] East China Univ Sci & Technol, Key Lab Adv Mat, Inst Fine Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China; [Pan, Cheng; Wang, Limin; Han, Jianwei] East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Inst Fine Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China; [Han, Jianwei] Chinese Acad Sci, Shanghai Hong Kong Joint Lab Chem Synth, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China in 2020.0, Cited 68.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9. Name: 6H-Benzo[c]chromen-6-one

By using 2-fluoro-substituted diaryliodonium salts, a novel benzocylization has been accomplished for the synthesis of 3,4-benzocoumarin derivatives via a cascade of ortho-arylation and defluorination in the presence of palladium catalysts. The reaction exhibits a broad compatibility of readily available aromatic acids with an excellent level of site-selectivity. Mechanistic investigations revealed a unique reactivity of carboxylic acid directed arylation by followed nucleophilic substitution of aromatic fluoride in the present system.

Name: 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Pan, C; Wang, LM; Han, JW or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Authors Boelke, A; Nachtsheim, BJ in WILEY-V C H VERLAG GMBH published article about HYPERVALENT IODINE REAGENTS; ALPHA-TOSYLOXYLATION; KETONES; REACTIVITY; CATALYSIS in [Boelke, Andreas; Nachtsheim, Boris J.] Univ Bremen, Inst Organ & Analyt Chem, D-28359 Bremen, Germany in 2020.0, Cited 40.0. Recommanded Product: 6H-Benzo[c]chromen-6-one. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

The reactivity of ortho-functionalized N-heterocycle-substituted iodoarenes (NHIAs) as organocatalysts in iodine(I/III)-mediated oxidations was systematically investigated in the alpha-tosyloxylation of ketones as the model reaction. During a systematic catalyst evolution, it was found that NH-triazoles and benzoxazoles have the most significant positive influence on the reactivity of the central iodine atom. A further catalyst improvement which focused on the substitution pattern of the arene revealed a remarkable ortho-effect. By introduction of an o-OMe group we were able to generate a novel NHIA with a so far unseen catalytic efficiency. This new catalyst is not only easy to synthesize but also enabled the alpha-tosyloxylation of carbonyl compounds at the lowest reported catalyst loading of only 1 mol%. Finally, the performance of this iodine(I) catalyst was successfully demonstrated in intramolecular oxidative couplings of biphenyls and oxidative rearrangements.

Recommanded Product: 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Boelke, A; Nachtsheim, BJ or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Carboxylation of Aryl Triflates with CO2 Merging Palladium and Visible-Light-Photoredox Catalysts WOS:000473116000050 published article about C-H FUNCTIONALIZATION; CARBON-DIOXIDE; DUAL CATALYSIS; DRIVEN CARBOXYLATION; UNACTIVATED PRIMARY; BUILDING-BLOCK; BONDS; HALIDES; ACIDS; HYDROCARBOXYLATION in [Bhunia, Samir Kumar; Das, Pritha; Nandi, Shantanu; Jana, Ranjan] CSIR Indian Inst Chem Biol, Organ & Med Chem Div, 4 Raja SC Mullick Rd, Kolkata 700032, W Bengal, India; [Bhunia, Samir Kumar; Jana, Ranjan] Acad Sci & Innovat Res AcSIR, Kolkata 700032, W Bengal, India in 2019.0, Cited 88.0. Computed Properties of C13H8O2. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

We report herein a visible-light-promoted, highly practical carboxylation of readily accessible aryl triflates at ambient temperature and a balloon pressure of CO2 by the combined use of palladium and photoredox Ir(III) catalysts. Strikingly, the stoichiometric metallic reductant is replaced by a nonmetallic amine reductant providing an environmentally benign carboxylation process. In addition, one-pot synthesis of a carboxylic acid directly from phenol and modification of estrone and concise synthesis of pharmaceutical drugs adapalene and bexarotene have been accomplished via late-stage carboxylation reaction. Furthermore, a parallel decarboxylation-carboxylation reaction has been demonstrated in an H-type closed vessel that is an interesting concept for the strategic sector. Spectroscopic and spectroelectrochemical studies indicated electron transfer from the Ir(III)/DIPEA combination to generate aryl carboxylate and Pd(0) for catalytic turnover.

Computed Properties of C13H8O2. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Bhunia, SK; Das, P; Nandi, S; Jana, R or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

HPLC of Formula: C13H8O2. I found the field of Engineering very interesting. Saw the article Synergistic adsorption of Cu(II) and photocatalytic degradation of phenanthrene by a jaboticaba-like TiO2/titanate nanotube composite: An experimental and theoretical study published in 2019.0, Reprint Addresses Cai, ZQ (corresponding author), East China Univ Sci & Technol, Natl Engn Lab High Concentrat Refractory Organ Wa, Shanghai 200237, Peoples R China.; Liu, W (corresponding author), Peking Univ, Key Lab Water & Sediment Sci, Minist Educ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China.. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one.

Combined water pollution with the coexistence of heavy metals and organic contaminants is of great concern for practical wastewater treatment. In this study, a jaboticaba-like nanocomposite, titanate nanotubes supported TiO2 (TiO2/TiNTs), was synthesized by a two-step hydrothermal treatment. TiO2 /TiNTs had large surface area, abundant of -ONa/H groups and fine crystal anatase phase, thus exhibited both good adsorptive performance for Cu(II) and high photocatalytic activity for phenanthrene degradation. The maximum Cu(II) adsorption capacity on TiO2/TiNTs was 115.0 mg/g at pH 5 according to Langmuir isotherm model, and > 95% of phenanthrene was degraded within 4 h under UV light. TiO2/TiNTs showed about 10 times higher observed rate constant (k(obs) ) for phenanthrene degradation compared to the unmodified TiNTs. More importantly, the coexistence of Cu(II) promoted photocatalytic degradation of phenanthrene, because the incorporated Cu(II) in the lattice of TiNTs could trap photo-excited electron and thus inhibited the electron-hole recombination. Density functional theory (DFT) calculation indicated that the sites of phenanthrene with high Fukui index (f(0)) preferred to be attacked by center dot OH radicals. The quantitative structure-activity relationship (QSAR) analysis revealed that the degradation intermediates had lower acute toxicity and mutagenicity than phenanthrene. TiO2/TiNTs also owned high stability, as only slight loss of Cu(II) and phenanthrene removal efficiency was observed even after four reuse cycles. The developed material in this study is of great application potential for water or wastewater treatment with multi-contaminants, and this work can help us to better understand the mechanisms on reaction between Ti-based nanomaterials and different kinds of contaminants.

HPLC of Formula: C13H8O2. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Cheng, KY; Cai, ZQ; Fu, J; Sun, XB; Sun, WL; Chen, L; Zhang, DD; Liu, W or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recently I am researching about C-H BONDS; RACEMIC SECONDARY ALCOHOLS; HYDROGEN-PEROXIDE; ASYMMETRIC EPOXIDATION; OXOCARBENIUM IONS; AEROBIC OXIDATION; HYDROXYLATION; MECHANISM; COMPLEX; DESYMMETRIZATION, Saw an article supported by the National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21722204, 21971148]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Sun, ST; Ma, YG; Liu, ZQ; Liu, L. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one. Application In Synthesis of 6H-Benzo[c]chromen-6-one

A manganese-catalyzed oxidative kinetic resolution of cyclic benzylic ethers through asymmetric C(sp(3))-H oxidation is reported. The practical approach is applicable to a wide range of 1,3-dihydroisobenzofurans bearing diverse functional groups and substituent patterns at the alpha position with extremely efficient enantiodiscrimination. The generality of the strategy was further demonstrated by efficient oxidative kinetic resolution of another type of five-membered cyclic benzylic ether, 2,3-dihydrobenzofurans, and six-membered 6H-benzo[c]chromenes. Direct late-stage oxidative kinetic resolution of bioactive molecules that are otherwise difficult to access was further explored.

Application In Synthesis of 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Sun, ST; Ma, YG; Liu, ZQ; Liu, L or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Safety of 6H-Benzo[c]chromen-6-one. In 2021.0 ORG LETT published article about AMINOHYDROXYLATION; OLEFINS in [Li, Jun; Yuan, Yong; Bao, Xiazhen; Sang, Tongzhi; Yang, Jie; Huo, Congde] Northwest Normal Univ, Gansu Int Sci & Technol Cooperat Base Water Reten, Lanzhou 730070, Gansu, Peoples R China; [Li, Jun; Yuan, Yong; Bao, Xiazhen; Sang, Tongzhi; Yang, Jie; Huo, Congde] Northwest Normal Univ, Minist Educ, Key Lab Ecoenvironm Related Polymer Mat, Lanzhou 730070, Gansu, Peoples R China; [Li, Jun; Yuan, Yong; Bao, Xiazhen; Sang, Tongzhi; Yang, Jie; Huo, Congde] Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Gansu, Peoples R China in 2021.0, Cited 36.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9.

An intermolecular vicinal O-N difunctionalization reaction of olefins with oxime esters through energy transfer catalysis has been developed.

Safety of 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Li, J; Yuan, Y; Bao, XZ; Sang, TZ; Yang, J; Huo, CD or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics