Tag: M.W=150-200

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. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9. Product Details 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.

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.. Product Details of 2005-10-9

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

Quality Control of 6H-Benzo[c]chromen-6-one. I found the field of Chemistry very interesting. Saw the article Functionalized spirolactones by photoinduced dearomatization of biaryl compounds published in 2019.0, Reprint Addresses Wang, F (corresponding author), DICP, Dalian Natl Lab Clean Energy DNL, SKLC, Dalian 116023, Peoples R China.; Samec, JSM (corresponding author), Stockholm Univ, Dept Organ Chem, SE-10691 Stockholm, Sweden.. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one.

The idea of using biaryl structures to generate synthetic building blocks such as spirolactones is attractive because biaryl structures are abundant in biomass waste streams. However, the inertness of aromatic rings of biaryls makes it challenging to transform them into functionalized structures. In this work, we developed photoinduced dearomatization of nonphenolic biaryl compounds to generate spirolactones. We demonstrate that dearomatization can be performed via either aerobic photocatalysis or anaerobic photooxidation to tolerate specific synthetic conditions. In both pathways, dearomatization is induced by electrophilic attack of the carboxyl radical. The resulting spirodiene radical is captured by either oxygen or water in aerobic and anaerobic systems, respectively, to generate the spirodienone. These methods represent novel routes to synthesize spirolactones from the biaryl motif.

Quality Control of 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Li, HJ; Subbotina, E; Bunrit, A; Wang, F; Samec, JSM 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 Photostable Ruthenium(II) Isocyanoborato Luminophores and Their Use in Energy Transfer and Photoredox Catalysis WOS:000669536600013 published article about SUBSTITUTED BIPYRIDYL COMPLEXES; CHARGE-TRANSFER STATES; ALPHA-AMINO-ACIDS; VISIBLE-LIGHT; POLYPYRIDINE COMPLEXES; IRIDIUM(III) COMPLEXES; ELECTRON-TRANSFER; DECARBOXYLATIVE ARYLATION; PHOTOINDUCED ELECTRON; REDUCTIVE-ELIMINATION in [Schmid, Lucius; Prescimone, Alessandro; Wenger, Oliver S.] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland; [Kerzig, Christoph] Johannes Gutenberg Univ Mainz, Dept Chem, D-55128 Mainz, Germany in 2021, Cited 154. SDS of cas: 103-26-4. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4

Ruthenium(II) polypyridine complexes are among the most popular sensitizers in photocatalysis, but they face some severe limitations concerning accessible excited-state energies and photostability that could hamper future applications. In this study, the borylation of heteroleptic ruthenium(II) cyanide complexes with alpha-diimine ancillary ligands is identified as a useful concept to elevate the energies of photoactive metal-to-ligand charge-transfer (MLCT) states and to obtain unusually photorobust compounds suitable for thermodynamically challenging energy transfer catalysis as well as oxidative and reductive photoredox catalysis. B(C6F5)(3) groups attached to the CN- ligands stabilize the metal-based t(2g)-like orbitals by similar to 0.8 eV, leading to high (MLCT)-M-3 energies (up to 2.50 eV) that are more typical for cyclometalated iridium(III) complexes. Through variation of their alpha-diimine ligands, nonradiative excited-state relaxation pathways involving higher-lying metal-centered states can be controlled, and their luminescence quantum yields and MLCT lifetimes can be optimized. These combined properties make the respective isocyanoborato complexes amenable to photochemical reactions for which common ruthenium(II)-based sensitizers are unsuited, due to a lack of sufficient triplet energy or excited-state redox power. Specifically, this includes photoisomerization reactions, sensitization of nickel-catalyzed cross-couplings, pinacol couplings, and oxidative decarboxylative C-C couplings. Our work is relevant in the greater context of tailoring photoactive coordination compounds to current challenges in synthetic photochemistry and solar energy conversion.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Schmid, L; Kerzig, C; Prescimone, A; Wenger, OS or concate me.. SDS of cas: 103-26-4

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

Recommanded Product: Methyl 3-phenylpropionate. In 2021.0 J CHEM RES published article about HIGHLY EFFICIENT; DIRECT AMIDATION; ESTERIFICATION; DERIVATIVES; OXIDATION; CATALYSIS; AMIDES; AMINES; GREEN; CONVERSION in [Wu, Xiaofang; Zhou, Lei; Li, Fangshao; Xiao, Jing] Hunan Univ Sci & Technol, Key Lab Theoret Organ Chem & Funct Mol, Minist Educ, Sch Chem & Chem Engn, Hunan Xiangtan Taoyuan Rd, Xiangtan 411201, Peoples R China in 2021.0, Cited 56.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3.

A PCl3-mediated conversion of tert-butyl esters into esters and amides in one-pot under air is developed. This novel protocol is highlighted by the synthesis of skeletons of bioactive molecules and gram-scale reactions. Mechanistic studies revealed that this transformation involves the formation of an acid chloride in situ, which is followed by reactions with alcohols or amines to afford the desired products.

Recommanded Product: Methyl 3-phenylpropionate. About Methyl 3-phenylpropionate, If you have any questions, you can contact Wu, XF; Zhou, L; Li, FS; Xiao, J or concate me.

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

SDS of cas: 2005-10-9. Recently I am researching about PHOTOINDUCED ELECTRON-TRANSFER; ANTI-MARKOVNIKOV ADDITION; 9-MESITYL-10-METHYLACRIDINIUM ION; VISIBLE-LIGHT; OXYGENATION; DERIVATIVES; ACR(+)-MES; COMPLEXES; EVOLUTION; OXIDATION, Saw an article supported by the Spanish GovernmentSpanish GovernmentEuropean Commission [CTQ2015-64561-R, CTQ2015-63997-C2, ENE2016-79608-C2-1-R]; Community of MadridComunidad de Madrid [2016-T1/AMB-1275]; European Structural Funds; Boehringer Ingelheim StiftungBoehringer Ingelheim; Comunidad de MadridComunidad de Madrid [S2018/NMT-4367]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Gini, A; Rigotti, T; Perez-Ruiz, R; Uygur, M; Mas-Balleste, R; Corral, I; Martinez-Fernandez, L; O’Shea, VAD; Mancheno, OG; Aleman, J. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one

A study on C9-imide acridinium photocatalysts with enhanced photoredox catalytic activity with respect to the well-established C9-mesityl acridinium salt is presented. The differences observed rely on the diverse accessibility of singlet charge-transfer excited states, which have been proven by CASPT2/CASSCF calculations, fluorescence and quenching studies.

SDS of cas: 2005-10-9. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Gini, A; Rigotti, T; Perez-Ruiz, R; Uygur, M; Mas-Balleste, R; Corral, I; Martinez-Fernandez, L; O’Shea, VAD; Mancheno, OG; Aleman, 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 Coumaric acid derivatives as tyrosinase inhibitors: Efficacy studies through in silico, in vitro and ex vivo approaches WOS:000575792000006 published article about ANTIOXIDANT ACTIVITY; CAFFEIC ACID; MELANOGENESIS; EUGENOL; MELANIN; IMAGE; ESTER in [Varela, Marina Themoteo; Ferrarini, Marcio; Mercaldi, Vitoria Gallo; Fernandes, Joao Paulo S.] Univ Fed Sao Paulo, Inst Environm Chem & Pharmaceut Sci, Dept Pharmaceut Sci, Rua Sao Nicolau 210, BR-09913030 Diadema, SP, Brazil; [Sufi, Bianca da Silva; Padovani, Giovana; Sbrugnera Nazato, Lucas Idacir] Chemyun Quim Ltda, Res & Dev Dept, Av Independencia 1501, BR-18087101 Sorocaba, SP, Brazil in 2020.0, Cited 47.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. Formula: C10H10O2

p-Coumaric acid is a known inhibitor of tyrosinase, an enzyme involved in the initial steps of the melanin synthesis in human and other species. However, its low lipophilicity impairs its penetration through skin and efficacy as antimelanogenic agent indeed. Accordingly, this paper reports the assessment of several coumaric acid derivatives as tyrosinase inhibitors and antimelanogenic agents in in vitro, in silico and ex vivo assays. The compounds were designed with modifications in the aromatic and acid moieties of p-coumaric acid, being the coumarate esters the most promising derivatives. The compounds showed higher tyrosinase inhibitory activity (pIC(50), 3.7-4.2) than the parent acid, being compounds 1d, 1e and 1f the most potent inhibitors. Docking analysis showed that these esters are competitive inhibitors per se, and act independently of a redox mechanism as suggested by DPPH assays. Moreover, the esters showed efficacy in reducing the melanin deposition in human skin fragments at 0.1% concentration, especially compound le. In summary, there is an important equilibria between tyrosinase affinity and lipophilicity that must be considered to get effective antimelanogenic agents with adequate permeability in the skin.

Formula: C10H10O2. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Varela, MT; Ferrarini, M; Mercaldi, VG; Sufi, BD; Padovani, G; Nazato, LIS; Fernandes, JPS 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 Biochemistry & Molecular Biology; Plant Sciences very interesting. Saw the article Biosynthesis and tissue-specific partitioning of camphor and eugenol in Ocimum kilimandscharicum published in 2020.0. Safety of Methyl 3-phenyl-2-propenoate, Reprint Addresses Giri, AP (corresponding author), CSIR Natl Chem Lab, Div Biochem Sci, Pune 411008, Maharashtra, India.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate

In Ocimum kilimandscharicum, the relative volatile composition of camphor in leaves was as high as 55%, while that of eugenol in roots was 57%. These metabolites were differentially partitioned between the aerial and root tissues. Global metabolomics revealed tissue-specific biochemical specialization, evident by the differential distribution of 2588 putative metabolites across nine tissues. Next-generation sequencing analysis indicated differential expression of 51 phenylpropanoid and 55 terpenoid pathway genes in aerial and root tissues. By integrating metabolomics with transcriptomics, the camphor biosynthesis pathway in O. kilimandscharicum was elucidated. In planta bioassays revealed the role of geranyl diphosphate synthase (gpps) and borneol dehydrogenase (bdh) in camphor biosynthesis. Further, the partitioning of camphor was attributed to tissue-specific gene expression of both the pathway entry point (gpps) and terminal (bdh) enzyme. Unlike camphor, eugenol accumulated more in roots; however, absence of the eugenol synthase gene in roots indicated long distance transport from aerial tissues. In silico co-expression analysis indicated the potential involvement of ATP-binding cassette, multidrug and toxic compound extrusion, and sugar transporters in eugenol transport. Similar partitioning was evident across five other Ocimum species. Overall, our work indicates that metabolite partitioning maybe a finely regulated process, which may have implications on plant growth, development, and defense.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Singh, P; Kalunke, RM; Shukla, A; Tzfadia, O; Thulasiram, HV; Giri, AP or concate me.. Safety of 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 Aldehyde as a Traceless Directing Group for Regioselective C-H Alkylation Catalyzed by Rhodium(III) in Air WOS:000516667200008 published article about PARA-SELECTIVE ALKYLATION; ALIPHATIC-ALDEHYDES; BOND FUNCTIONALIZATION; CONJUGATE ADDITION; ACTIVATION; DECARBONYLATION; SALICYLALDEHYDES; HYDROACYLATION; ANNULATION; SECONDARY in [Chen, Si-Qi; Li, Xin-Ran; Fan, Juan; Liu, Zhong-Wen; Shi, Xian-Ying] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Syngas Convers Shaanxi Prov,Minist Educ, Key Lab Macromol Sci Shaanxi Prov,Key Lab Appl Su, Xian 710062, Peoples R China; [Li, Chao-Jun] McGill Univ, Dept Chem, Montreal, PQ H3A 0B8, Canada in 2020.0, Cited 82.0. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3. Recommanded Product: 103-25-3

The aromatic aldehyde as a traceless directing group for the regionselective C-H alkylation catalyzed by rhodium(III) under aerobic atmospheric conditions has been developed. The process involves an aldehyde assisted direct addition of C-H bond to unsaturated electrophiles of acrylates or acrylic acids, and the subsequent decarbonylation. A trace amount of water is found to favor the reaction.

Recommanded Product: 103-25-3. About Methyl 3-phenylpropionate, If you have any questions, you can contact Chen, SQ; Li, XR; Li, CJ; Fan, J; Liu, ZW; Shi, XY or concate me.

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

An article Determination and comparison of agarwood from different origins by comprehensive two-dimensional gas chromatography-quadrupole time-of-flight mass spectrometry WOS:000508276200001 published article about OILS; SESQUITERPENOIDS; CONSTITUENTS; MALAYSIA in [Sun, Yu-an; Zhang, Hengmao; Li, Zhenxing; Yu, Wenhao; Wang, Ke; Zhang, Meili; Wang, Jinting] Zhengzhou Univ Light Ind, Dept Appl Chem, Zhengzhou 450002, Peoples R China; [Zhao, Zhijun] J&X Technol Shanghai Co Ltd, Shanghai, Peoples R China in 2020.0, Cited 38.0. Category: esters-buliding-blocks. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3

Agarwood, a species of resinous heartwood, is a precious medicinal plant and a type of rare natural spice, which is widely used in medicine, cosmetics, religious activities, and other fields. In this study, agarwood samples from eight different regions across four countries were analyzed by comprehensive two-dimensional gas chromatography-quadrupole time-of-flight mass spectrometry. A total of 232 species were identified (the match factors of these compounds were above 750). The main compounds of agarwood are oxygenated sesquiterpenes and chromones. The compositions of India1 and Malaysia2 were significantly different from those of other samples, which might be attributed to the different production processes of agarwood. For further investigation, factor analysis was conducted for six agarwood samples. The results showed that the data classification possessed a regional characteristic; according to the retention time and relative content, characteristic compositions were determined by factor scores. Finally, the differences of characteristic compositions were simply analyzed, and the reasons were speculated.

Category: esters-buliding-blocks. About Methyl 3-phenylpropionate, If you have any questions, you can contact Sun, YA; Zhang, HM; Li, ZX; Yu, WH; Zhao, ZJ; Wang, K; Zhang, ML; Wang, JT or concate me.

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

An article Bridged-Selective Intramolecular Diels-Alder Reactions in the Synthesis of Bicyclo[2.2.2]octanes WOS:000595145900011 published article about TANDEM WESSELY OXIDATION; CYCLOADDITION; ALKALOIDS; ADDITIONS in [Hanashima, Mika; Matsumura, Toshiki; Asaji, Yuta; Yoshimura, Tomoyuki; Matsuo, Jun-ichi] Kanazawa Univ, Grad Sch Med Sci, Div Pharmaceut Sci, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan 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. Safety 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.

Safety of 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