Tag: M.W=150-200

An article Synthesis and optical properties of a library of multi-colored isomeric aryldibenzopyrylium halochromic cations WOS:000534460400006 published article about ELECTRON-TRANSFER; HYDRIDE; IONS; DYES; AGGREGATION; REDUCTION; ROSAMINE; PROTON in [Meyer, Samantha M.; Charlesworth-Seiler, Eva M.; Patrow, Joel G.; Kitzrow, Jonathan P.; Gerlach, Deidra L.; Dahl, Bart J.] Univ Wisconsin, Dept Chem, Eau Claire, WI 54702 USA; [Reinheimer, Eric W.] Rigaku Amer Corp, 9009 New Trails Dr, The Woodlands, TX 77381 USA in 2020.0, Cited 40.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9. Formula: C13H8O2

This report describes the synthesis of five new colorful 6-aryldibenzo[b,d]pyrylium cation salts, a largely unexplored structural unit. These rare compounds are benzannulated structural derivatives of the well-known flavylium cations found widespread in natural pigments. These new dyes are directly compared to three previously synthesized 6-aryldibenzo[b,d]pyrylium cation salts as well as eight colorful isomeric 9-aryldibenzo[b,d]pyrylium cation, or 9-arylxanthylium, salts. The 9-arylxanthylium unit is commonly found in the biologically important rhodamine and rosamine dyes, yet six of the analogs presented in this study were either previously unreported or not isolated. The visual and spectroscopic properties of all 16 compounds were analyzed as a function of the structural differences between the compounds. All compounds displayed reversible halochromism in organic solution, displaying bright colors under acidic conditions and becoming colorless under basic conditions. (C) 2020 Elsevier Ltd. All rights reserved.

Formula: C13H8O2. Bye, fridends, I hope you can learn more about C13H8O2, If you have any questions, you can browse other blog as well. See you lster.

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

In 2020 NAT CATAL published article about CHEMOSELECTIVE REDUCTION; SECONDARY AMIDES; TERTIARY AMIDES; MILD; ALDEHYDES; ALCOHOLS; COMPLEX; AMINES; HYDROGENATION; HYDROSILANES in [Tamang, Sem Raj; Singh, Arpita; Bedi, Deepika; Bazkiaei, Adineh Rezaei; Warner, Audrey A.; Glogau, Keeley; McDonald, Corey; Unruh, Daniel K.; Findlater, Michael] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA in 2020, Cited 69. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. Recommanded Product: Methyl 3-phenyl-2-propenoate

Catalytic reduction of carboxamides into their corresponding amines is an attractive but extremely challenging transformation, which often meets with limited success; the valuable amine products drive ongoing research in this area. Here we show the direct deoxygenation of carboxamides using earth-abundant lanthanum catalysts in the presence of HBpin, presenting good to excellent yields with broad substrate scope and functional group/heteroatom tolerance. Moreover, this method is also effective in catalysing the hydroboration of esters. Finally, selective cleavage of the amide group bonds (C-N versus C-O) could be achieved based on the nature of the nitrogen substituents. Amide reduction via hydroboration is challenging, and catalysts often exhibit limited substrate scope. Here the authors report synthesis of a lanthanum cluster as a catalyst for the hydroboration of esters and amides, capable of reducing a wide range of primary, secondary and tertiary amides to amines.

Welcome to talk about 103-26-4, If you have any questions, you can contact Tamang, SR; Singh, A; Bedi, D; Bazkiaei, AR; Warner, AA; Glogau, K; McDonald, C; Unruh, DK; Findlater, M or send Email.. 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

An article Chemical characterization of four Brazilian brown propolis: An insight in tracking of its geographical location of production and quality control WOS:000477091700048 published article about BETA-CARYOPHYLLENE; ANTIOXIDANT ACTIVITY; ANTIMICROBIAL ACTIVITY; CYTOTOXIC ACTIVITIES; BIOACTIVE COMPOUNDS; RED PROPOLIS; BEE POLLEN; D-LIMONENE; FT-IR; ORIGIN in [Olegario, Lary Souza] Univ Fed Paraiba, Lab Flavor Anal, Joao Pessoa, Paraiba, Brazil; [Santana Andrade, Julianna Karla; Denadai, Marina; Cavalcanti, Ranielly Lira; Narain, Narendra] Univ Fed Sergipe, Lab Flavor & Chromatog Anal, Sao Cristovao, Sergipe, Brazil; [Santana Andrade, George Ricardo] Univ Fed Sergipe, Post Grad Program Mat Sci & Engn, Sao Cristovao, SE, Brazil; [Azevedo Pereira da Silva, Maria Aparecida] Univ Fed Sergipe, Dept Food Technol, Sao Cristovao, Sergipe, Brazil in 2019.0, Cited 53.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. Formula: C10H12O2

The aim of this work was to undertake a detailed analysis on chemical constituents of brown propolis, originating from four different states (Bahia, Minas Gerais, Parana and Sergipe) of Brazil. The volatile profile was determined by using HS-SPME-GC-MS along with the determination of total phenolic compounds content, flavonoids and antioxidant activity. A total of 315 volatile compounds were identified, however, several of them have not been reported so far in the Brazilian brown propolis. The terpenes represented the major class with 40.92-84.66% of the total area in the chromatograms. PCA analysis of the majority of compounds successfully indicated the volatile profile of each propolis sample according to their geographical origin. The analysis of volatile compounds and its characterization also varied significantly and confirmed that these depended on the geographical area of collection of propolis. The data generated in this work may help in establishing criteria for quality control and tracking the specific region of propolis production in different states of Brazil.

Bye, fridends, I hope you can learn more about C10H12O2, If you have any questions, you can browse other blog as well. See you lster.. Formula: C10H12O2

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In 2020.0 CHEM SCI published article about C-H BONDS; CARBON-DIOXIDE; FORMIC-ACID; HOMOGENEOUS HYDROGENATION; REDUCTIVE METHYLATION; METHANOL SYNTHESIS; CYCLIC CARBONATES; CO2 HYDROGENATION; N-FORMYLATION; AMINES in [Wang, Zheng; Zhao, Ziwei; Li, Yong; Liu, Qingbin] Hebei Normal Univ, Coll Chem & Mat Sci, Hebei Key Lab Organ Funct Mol, Shijiazhuang 050024, Hebei, Peoples R China; [Wang, Zheng; Zhang, Qiuyue; Solan, Gregory A.; Ma, Yanping; Sun, Wen-Hua] Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China; [Wang, Zheng; Zhang, Qiuyue; Solan, Gregory A.; Ma, Yanping; Sun, Wen-Hua] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China; [Wang, Zheng] Agr Univ Hebei, Coll Sci, Baoding 071001, Peoples R China; [Zhong, Yanxia] Shijiazhuang Med Coll, Dept Nursing, Shijiazhuang 050000, Hebei, Peoples R China; [Solan, Gregory A.] Univ Leicester, Dept Chem, Univ Rd, Leicester LE1 7RH, Leics, England in 2020.0, Cited 83.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. Recommanded Product: Methyl 3-phenylpropionate

A novel robust diphosphine-ruthenium(ii) complex has been developed that can efficiently catalyze both the hydrogenation of CO(2)to methanol and itsin situcondensation with carboxylic acids to form methyl esters; a TON of up to 3260 is achievable for the CO(2)to methanol step. Both aromatic and aliphatic carboxylic acids can be transformed to their corresponding methyl esters with high conversion and selectivity (17 aliphatic and 18 aromatic examples). On the basis of a series of experiments, a mechanism has been proposed to account for the various steps involved in the catalytic pathway. More importantly, this approach provides a promising route for using CO(2)as a C1 source for the production of biofuels, fine chemicals and methanol.

Welcome to talk about 103-25-3, If you have any questions, you can contact Wang, Z; Zhao, ZW; Li, Y; Zhong, YX; Zhang, QY; Liu, QB; Solan, GA; Ma, YP; Sun, WH or send Email.. Recommanded Product: Methyl 3-phenylpropionate

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Authors Xu, P; Lopez-Rojas, P; Ritter, T in AMER CHEMICAL SOC published article about in [Xu, Peng; Lopez-Rojas, Priscila; Ritter, Tobias] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany in 2021.0, Cited 49.0. COA of Formula: C13H8O2. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

Abundant aromatic carboxylic acids exist in great structural diversity from nature and synthesis. To date, the synthetically valuable decarboxylative functionalization of benzoic acids is realized mainly by transition-metal-catalyzed decarboxylative cross couplings. However, the high activation barrier for thermal decarboxylative carbometalation that often requires 140 degrees C reaction temperature limits both the substrate scope as well as the scope of suitable reactions that can sustain such conditions. Numerous reactions, for example, decarboxylative fluorination that is well developed for aliphatic carboxylic acids, are out of reach for the aromatic counterparts with current reaction chemistry. Here, we report a conceptually different approach through a low-barrier photoinduced ligand to metal charge transfer (LMCT)-enabled radical decarboxylative carbometalation strategy, which generates a putative high-valent arylcopper(III) complex, from which versatile facile reductive eliminations can occur. We demonstrate the suitability of our new approach to address previously unrealized general decarboxylative fluorination of benzoic acids.

Welcome to talk about 2005-10-9, If you have any questions, you can contact Xu, P; Lopez-Rojas, P; Ritter, T or send Email.. COA 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 Palladium (II) anchored on a magnetic mesoporous polymelamine-formaldehyde as new catalyst for Heck coupling reaction: optimization of reaction using response surface methodology WOS:000512810900011 published article about CONJUGATED MICROPOROUS POLYMER; HETEROGENEOUS CATALYST; EFFICIENT CATALYST; ORGANIC POLYMERS; NANOPARTICLES; COMPLEX; HYDROGENATION; NANOCATALYST; SILICA; PD in [Shahamat, Zahra; Nemati, Firouzeh; Elhampour, Ali] Semnan Univ, Dept Chem, Semnan, Iran in 2020.0, Cited 59.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. Application In Synthesis of Methyl 3-phenyl-2-propenoate

The paper describes synthesis of a novel mesoporous and magnetically regenerated heterogeneous nanocatalyst with high catalytic activity. The synthesis strategy includes a one-step polycondensation reaction of melamine, formaldehyde and FeCl3 center dot 6H(2)O in a simple and sustainable manner and followed by immobilization of Pd(II) on it. Formation and properties of nanocomposite were characterized by different techniques; the results were illustrated good surface area and a well-defined mesopore structure. Also the palladium-catalyzed C-C bond formation between aryl halides and olefins was selected to survey the activity of the synthesized nanocatalyst. Central Composite Design (CCD) strategy was used to predict the optimum synthesis conditions and identify the remarkable and effective factors including temperature, period of the reaction and amount of catalyst. These results were also verified experimentally. In order to minimize systematic error, the experimental runs as a randomized fashion were accomplished.

Application In Synthesis of Methyl 3-phenyl-2-propenoate. Welcome to talk about 103-26-4, If you have any questions, you can contact Shahamat, Z; Nemati, F; Elhampour, A or send Email.

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

Application In Synthesis of 6H-Benzo[c]chromen-6-one. In 2020.0 ORG LETT published article about DEHYDROGENATIVE LACTONIZATION; PHOTOREDOX CATALYSIS; CARBOXYLIC-ACIDS; METAL-COMPLEXES; C(SP(2))-H; FUNCTIONALIZATION; DIBENZOPYRANONES; LACTONES; SYSTEM in [Xia, Siqi; Lei, Chuanhu] Shanghai Univ, Coll Sci, Ctr Supramol Chem & Catalysis, Shanghai 200444, Peoples R China; [Xia, Siqi; Lei, Chuanhu] Shanghai Univ, Coll Sci, Dept Chem, Shanghai 200444, Peoples R China; [Xia, Siqi; Hu, Kunjun; Jin, Jian] Chinese Acad Sci, Univ Chinese Acad Sci, Shanghai Inst Organ Chem, CAS Key Lab Synthet Chem Nat Subst,Ctr Excellence, Shanghai 20032, Peoples R China in 2020.0, Cited 73.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9.

A mild and efficient protocol for the intramolecular aromatic C-H oxygenation of 2-biphenylcarboxylic acids has been achieved via iron photocatalysis. The 2-biphenylcarboxylic acids with a diverse array of substituents at both phenyl rings could furnish the oxygenation products in good to excellent yields. We speculate that the aryl carboxylate-iron(III) complexes should generate the aroyloxy radicals and iron(II) upon visible light irradiation.

Application In Synthesis of 6H-Benzo[c]chromen-6-one. Welcome to talk about 2005-10-9, If you have any questions, you can contact Xia, SQ; Hu, KJ; Lei, CH; Jin, J or send Email.

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

Category: esters-buliding-blocks. In 2021.0 ANGEW CHEM INT EDIT published article about C-H BONDS; RACEMIC SECONDARY ALCOHOLS; HYDROGEN-PEROXIDE; ASYMMETRIC EPOXIDATION; OXOCARBENIUM IONS; AEROBIC OXIDATION; HYDROXYLATION; MECHANISM; COMPLEX; DESYMMETRIZATION in [Sun, Shutao; Ma, Yingang; Liu, Ziqiang; Liu, Lei] Shandong Univ, Sch Pharmaceut Sci, Jinan 250100, Peoples R China; [Sun, Shutao; Liu, Lei] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China in 2021.0, Cited 69.0. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9.

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.

Category: esters-buliding-blocks. Welcome to talk about 2005-10-9, If you have any questions, you can contact Sun, ST; Ma, YG; Liu, ZQ; Liu, L or send Email.

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

COA of Formula: C10H12O2. Recently I am researching about DEHYDROGENATION; EFFICIENT, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21961003, 21971134, 21631007, 21225103]; Natural Science Foundation of Jiangxi ProvinceNatural Science Foundation of Jiangxi Province [20192BAB205114]; Talent project of Jiangxi Province [jxsq2018106059]; Doctoral Fund of the Ministry of Education of ChinaMinistry of Education, China [20130002110042]; Tsinghua University Initiative Foundation Research Program [20131089204]; State Key Laboratory of Natural and Biomimetic Drugs [K20160202]; Shanghai Institute of Technology; China Scholarship Council (CSC)China Scholarship Council. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Wang, JJ; Jiang, F; Tao, CF; Yu, H; Ruhlmann, L; Wei, YG. The CAS is 103-25-3. Through research, I have a further understanding and discovery of Methyl 3-phenylpropionate

The direct esterification of alcohols with non-noble metal-based catalytic systems faces great challenges. Here, we report a new chrome-based catalyst stabilized by a single pentaerythritol decorated Anderson-type polyoxometalate, [N(C4H9)(4)](3)[CrMo6O18(OH)(3)C{(OCH2)(3)CH2OH}], which can realize the efficient transformation from alcohols to esters by H2O2 oxidation in good yields and high selectivity without extra organic ligands. A variety of alcohols with different functionalities including some natural products and pharmaceutical intermediates are tolerated in this system. The chrome-based catalyst can be recycled several times and still keep the original configuration and catalytic activity. We also propose a reasonable catalytic mechanism and prove the potential for industrial applications.

COA of Formula: C10H12O2. Bye, fridends, I hope you can learn more about C10H12O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Preparation of Palladium(II) Complexes of 1-substituted-3-phospholene Ligands and their Evaluation as Catalysts in Hydroalkoxycarbonylation WOS:000507468000005 published article about P-HETEROCYCLES; RESOLUTION; PHOSPHOLANE; METHOXYCARBONYLATION; PHOSPHETANES; RHODIUM(III); STYRENE in [Bagi, Peter; Herbay, Reka; Gyorke, Gabor; Keglevich, Gyorgy] Budapest Univ Technol & Econ, Dept Organ Chem & Technol, H-1111 Budapest, Hungary; [Pongracz, Peter; Kollar, Laszlo] Univ Pecs, Dept Inorgan Chem, H-7624 Pecs, Hungary; [Pongracz, Peter; Kollar, Laszlo] MTA PTE Res Grp Select Chem Syntheses, H-7624 Pecs, Hungary; [Timari, Istvan] Univ Debrecen, Dept Inorgan & Analyt Chem, H-4032 Debrecen, Hungary; [Drahos, Laszlo] Hungarian Acad Sci, Res Ctr Nat Sci, MS Prote Res Grp, H-1117 Budapest, Hungary in 2019.0, Cited 46.0. Application In Synthesis of Methyl 3-phenylpropionate. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3

A series of palladium(H) complexes incorporating l-substituted-3-methyl-3-phospholenes as the P-ligands were prepared from phospholene oxides by deoxygenation followed by complexation with PdCl2(PhCN)(2). The two 1-substituted-3-methyl-3-phospholene ligands were trans position to each other in the Pd(II)-complexes. As the ligands contain a P-stereogenic center, the Pd-complexes were obtained as a 1:1 mixture of two stereoisomers, the homochiral (R,R and S,S) and the meso (R,S) forms, when racemic starting materials were used. An optically active Pd-complex containing (R)-1-propyl-3-phospholene ligand was also prepared. Catalytic activity of an aryl- and an alkyl-3-phospholene-palladium(II)-complex was evaluated in hydroalkoxycarbonylation of styrene. The alkyl-derivative showed higher activity and selectivity towards the formation of the esters of 3-phenylpropionic acid. However, the overall activity of these PdCl2(phospholene)(2)-type complexes was low.

Bye, fridends, I hope you can learn more about C10H12O2, If you have any questions, you can browse other blog as well. See you lster.. Application In Synthesis of Methyl 3-phenylpropionate

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics