Tag: M.W=150-200

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

An article Direct reversible decarboxylation from stable organic acids in dimethylformamide solution WOS:000556568100044 published article about PYROLYSIS; CATALYSIS; ESTERS; CO2 in [Kong, Duanyang; Moon, Patrick J.; Lui, Erica K. J.; Bsharat, Odey; Lundgren, Rylan J.] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada in 2020.0, Cited 50.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. SDS of cas: 103-26-4

Many classical and emerging methodologies in organic chemistry rely on carbon dioxide (CO2) extrusion to generate reactive intermediates for bond-forming events. Synthetic reactions that involve the microscopic reverse-the carboxylation of reactive intermediates-have conventionally been undertaken using very different conditions. We report that chemically stable C(sp(3)) carboxylates, such as arylacetic acids and malonate half-esters, undergo uncatalyzed reversible decarboxylation in dimethylformamide solution. Decarboxylation-carboxylation occurs with substrates resistant to protodecarboxylation by Bronsted acids under otherwise identical conditions. Isotopically labeled carboxylic acids can be prepared in high chemical and isotopic yield by simply supplying an atmosphere of (CO2)-C-13 to carboxylate salts in polar aprotic solvents. An understanding of carboxylate reactivity in solution enables conditions for the trapping of aldehydes, ketones, and alpha,beta-unsaturated esters.

SDS of cas: 103-26-4. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Kong, DY; Moon, PJ; Lui, EKJ; Bsharat, O; Lundgren, RJ or concate me.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

I found the field of Polymer Science very interesting. Saw the article 1:3 ABAA sequence-regulated substituted polymethylenes via alternating radical copolymerization of methyl cinnamate and maleic anhydride followed by post-polymerization reactions published in 2019.0. Category: esters-buliding-blocks, Reprint Addresses Satoh, K; Kamigaito, M (corresponding author), Nagoya Univ, Grad Sch Engn, Dept Mol & Macromol Chem, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan.; Satoh, K (corresponding author), Tokyo Inst Technol, Sch Mat & Chem Technol, Dept Chem Sci & Engn, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528550, Japan.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate

Methyl cinnamate (M-1) and maleic anhydride (M-2), which are both non-homopolymerizable 1,2-disubtituted vinyl monomers, were radically copolymerized in toluene to result in 1:1 alternating copolymers. The 1:1 alternating sequence was confirmed by not only the monomer reactivity ratios obtained by using the terminal model fitted by the Kelen-Tiidos method (r(1) = 0.0035, r(2) = 0.069) but also MALDI-TOF-MS analysis of the copolymers with controlled molecular weights and relatively narrow molecular weight distributions (M-w/M-n = 1.20), which were prepared by RAFT copolymerization using 2-cyano-2-propyl ethyl trithiocarbonate (CPETC) as the RAFT agent. The maleic anhydride unit was transformed into two methyl ester groups by hydrolysis followed by methylation. Since the propagation of methyl cinnamate occurred regioselectively via a styrenic radical, the methyl esterified copolymers possessed ABAA sequence-controlled substituted polymethylene structures (A: methyl ester, B: phenyl). The sequence-controlled substituted polymethylene showed good thermal properties (T-d5 = 323 degrees C, T-g >= 192 degrees C) due to the rigid main-chain structures, which possessed a phenyl group on every fourth main-chain carbon in the repeating units in addition to three methyl ester groups on the other main-chain carbons. Block copolymers consisting of the rigid substituted polymethylene and soft poly(methyl acrylate) were also synthesized by RAFT polymerization.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Terao, Y; Sugihara, S; Satoh, K; Kamigaito, M or concate me.. Category: esters-buliding-blocks

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2019.0 INT J MOL SCI published article about FATTY LIVER-DISEASE; HEPATIC CYTOCHROME-P450 1A1; MESSENGER-RNA EXPRESSION; POTENTIAL ANKYRIN 1; ANDROGEN RECEPTOR; DANHONG INJECTION; OXIDATIVE STRESS; GENE-EXPRESSION; CYP 1A1; PLATELET-AGGREGATION in [Chen, Zhao; Cao, Yanfeng; Zhang, Yanling; Qiao, Yanjiang] Beijing Univ Chinese Med, Sch Chinese Mat Med, Beijing 102488, Peoples R China; [Chen, Zhao; Cao, Yanfeng; Zhang, Yanling; Qiao, Yanjiang] State Adm Tradit Chinese Med, Res Ctr TCM Informat Engn, Beijing 102488, Peoples R China in 2019.0, Cited 179.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. Category: esters-buliding-blocks

Pungent traditional Chinese medicines (TCMs) play a vital role in the clinical treatment of hepatobiliary disease, gastrointestinal diseases, cardiovascular diseases, diabetes, skin diseases and so on. Pungent TCMs have a vastness of pungent flavored (with pungent taste or smell) compounds. To elucidate the molecular mechanism of pungent flavored compounds in treating cardiovascular diseases (CVDs) and liver diseases, five pungent TCMs with the action of blood-activating and stasis-resolving (BASR) were selected. Here, an integrated systems pharmacology approach is presented for illustrating the molecular correlations between pungent flavored compounds and their holistic efficacy at the special organ level. First, we identified target proteins that are associated with pungent flavored compounds and found that these targets were functionally related to CVDs and liver diseases. Then, based on the phenotype that directly links human genes to the body parts they affect, we clustered target modules associated with pungent flavored compounds into liver and heart organs. We applied systems-based analysis to introduce a pungent flavored compound-target-pathway-organ network that clarifies mechanisms of pungent substances treating cardiovascular diseases and liver diseases by acting on the heart/liver organ. The systems pharmacology also suggests a novel systematic strategy for rational drug development from pungent TCMs in treating cardiovascular disease and associated liver diseases.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Chen, Z; Cao, YF; Zhang, YL; Qiao, YJ or concate me.. Category: esters-buliding-blocks

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

I found the field of Chemistry very interesting. Saw the article Pd-Colloids-Catalyzed/Ag2O-Oxidized General and Selective Esterification of Benzylic Alcohols published in 2019.0. Recommanded Product: Methyl 3-phenyl-2-propenoate, Reprint Addresses Kapdi, AR (corresponding author), Inst Chem Technol, Dept Chem, Nathalal Parekh Rd, Mumbai 400019, Maharashtra, India.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate

Palladium colloids obtained from the degradation of Hermann-Beller palladacycle proved to be an efficient catalytic system in combination with silver oxide as a selective oxidant for the oxidative esterification of differently substituted benzyl alcohols in MeOH as solvent. Excellent reactivity exhibited by the catalytic system also allowed the alcoholic coupling partner to be changed from MeOH to a wide range of alcohols having diverse functionalities. The mildness of the developed protocol also made it possible to employ propargyl alcohol as the coupling partner without any observation of any interference of the terminal alkyne. Selective oxidative coupling of a primary alcoholic functional group over secondary in the case of glycols and glycerols was also made possible using the developed catalyst system. To test the relevancy of Pd/Ag combined catalysis mixed Pd/Ag colloids were synthesized, characterized by TEM, XRD and XPS and applied to oxidative-esterification successfully.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Sable, V; Shah, J; Sharma, A; Kapdi, AR or concate me.. Recommanded Product: Methyl 3-phenyl-2-propenoate

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
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

HPLC of Formula: C13H8O2. I found the field of Biochemistry & Molecular Biology; Chemistry very interesting. Saw the article Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage published in 2019.0, Reprint Addresses Stamatiou, A (corresponding author), Lucerne Univ Appl Sci & Arts, Competence Ctr Thermal Energy Storage TES, CH-6048 Horw, Switzerland.. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one.

In the presented work, five bio-based and bio-degradable cyclic esters, i.e. lactones, have been investigated as possible phase change materials for applications in latent heat storage systems. Commercial natural lactones such as epsilon-caprolactone and gamma-valerolactone were easily purchased through chemical suppliers, while 1,2-campholide, oxa-adamantanone and dibenzochromen-6-one were synthesized through Baeyer-Villiger oxidation. The compounds were characterized with respect to attenuated total reflectance spectroscopy and gas chromatography coupled with mass spectroscopy, in order to confirm their chemical structures and identity. Subsequently, thermogravimetric analysis and differential scanning calorimetry were used to measure the phase change temperatures, enthalpies of fusion, degradation temperatures, as well to estimate the degree of supercooling. The lactones showed a wide range of phase change temperatures from -40 degrees C to 290 degrees C, making them a high interest for both low and high temperature latent heat storage applications, given the lack of organic phase change materials covering phase change temperature ranges below 0 degrees C and above 80 degrees C. However, low enthalpies of fusion, high degrees of supercooling and thermal degradations at low temperatures were registered for all samples, rendering them unsuitable as phase change materials.

About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Ravotti, R; Fellmann, O; Lardon, N; Fischer, LJ; Stamatiou, A; Worlitschek, J or concate me.. HPLC of Formula: C13H8O2

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 Redox-Neutral Nickel(II) Catalysis: Hydroarylation of Unactivated Alkenes with Arylboronic Acids WOS:000565674900001 published article about LINEAR-SELECTIVE HYDROARYLATION; DIRECTING GROUPS; HYDROCARBOFUNCTIONALIZATION; CYCLIZATIONS; PALLADIUM; CLEAVAGE; ETHYLENE; HALIDES in [Wang, Dao-Ming; Feng, Wang; Wu, Yichen; Liu, Tao; Wang, Peng] Chinese Acad Sci, Shanghai Inst Organ Chem, Ctr Excellence Mol Synth, State Key Lab Organomet Chem, 345 Lingling Rd, Shanghai 200032, Peoples R China; [Wang, Peng] Chinese Acad Sci, Shanghai Inst Organ Chem, CAS Key Lab Energy Regulat Mat, 345 Lingling Rd, Shanghai 200032, Peoples R China in 2020.0, Cited 66.0. Recommanded Product: 103-26-4. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4

Reported here is the discovery of a redox-neutral Ni-II/Ni(II)catalytic cycle which is capable of the linear-selective hydroarylation of unactivated alkenes with arylboronic acids for the first time. This novel catalytic cycle, enabled by the use of an electron-rich diimine ligand, features broad substrate scope, and excellent functional-group and heterocycle compatibility under mild reaction conditions in the absence of additional oxidants and reductants. Mechanistic investigations using kinetic analysis and deuterium-labelling experiments revealed the protonation to be the rate-determining step in this redox-neutral catalysis, and the reversible chain-walking nature of the newly developed diimine-Ni catalyst.

Recommanded Product: 103-26-4. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Wang, DM; Feng, W; Wu, YC; Liu, T; Wang, P or concate me.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics