Month: October 2021

An article Sugar-containing beverages and their association with risk of breast, endometrial, ovarian and colorectal cancers among Canadian women WOS:000612320400002 published article about ARTIFICIALLY SWEETENED BEVERAGES; HORMONE-BINDING GLOBULIN; CARDIOVASCULAR-DISEASE; METABOLIC SYNDROME; WEIGHT-GAIN; LIFE-STYLE; FRUIT JUICES; SOFT DRINKS; CONSUMPTION; OBESITY in [Arthur, Rhonda S.; Mossavar-Rahmani, Yasmin; Xue, Xiaonan; Rohan, Thomas E.] Albert Einstein Coll Med, Dept Epidemiol & Populat Hlth, 1300 Morris Pk Ave, Bronx, NY 10461 USA; [Kirsh, Victoria A.] Univ Toronto, Dalla Lana Sch Publ Hlth, Toronto, ON, Canada in 2021.0, Cited 61.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. Name: Methyl 3-phenyl-2-propenoate

Background: The association of sugar containing beverages (SCBs) with risk of breast, endometrial, ovarian and colorectal cancers is unclear. Therefore, we investigated these associations in the Canadian Study of Diet, Lifestyle, and Health. Methods: The study population comprised an age-stratified subcohort of 3185 women and 848, 161, 91 and 243 breast, endometrial, ovarian and colorectal cancer cases, respectively. We used Cox proportional hazards regression models modified for the case-cohort design to assess the associations of SCBs with risk of the aforementioned cancers. Results: Compared to SCB intake in the lowest tertile, SCB intake in the highest tertile was positively associated with endometrial cancer risk (HRT3 vs T1 = 1.58, 95 % CI = 1.08-2.33 and 1.78, 95 % CI = 1.12-2.81 for overall and Type 1 endometrial cancer, respectively) and ovarian cancer (HRT3 vs T1 = 1.76, 95 % CI: 1.09-2.83). Fruit juice intake was also positively associated with risk of Type 1endometrial (HRT3 vs T1 = 1.63, 95 % CI = 1.03-2.60). After excluding women with diabetes or cardiovascular diseases, we also observed sugar-sweetened beverages (SSBs) intake in the highest tertile was associated with higher risk of Type 1 endometrial cancer (HRT3 vs T1 = 1.65; 95 % CI: 1.03-2.64). None of the beverages was associated with risk of breast or colorectal cancer. Conclusion: We conclude that, in this cohort, relatively high SCB intake was associated with higher risk of endometrial and ovarian cancers, but not of breast or colorectal cancers. Our findings also suggest that relatively high SSB and fruit juice intake are associated with higher risk of Type 1 endometrial cancer.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Arthur, RS; Kirsh, VA; Mossavar-Rahmani, Y; Xue, XN; Rohan, TE or concate me.. Name: 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;,
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Authors Hu, H; Zhu, JX; Yang, FL; Chen, ZX; Deng, ML; Weng, LH; Ling, Y; Zhou, YM in ROYAL SOC CHEMISTRY published article about COMPOSITE MEMBRANES; SEPARATION; DESIGN; MOF; SOLVENT; CHALLENGES; CHEMISTRY; PLATFORM; ETHANOL; WATER in [Hu, Han; Zhu, Jiaxing; Yang, Feilong; Chen, Zhenxia; Deng, Mingli; Weng, Linhong; Ling, Yun; Zhou, Yaming] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200438, Peoples R China in 2019, Cited 39. Product Details of 99-27-4. The Name is Dimethyl 5-aminoisophthalate. Through research, I have a further understanding and discovery of 99-27-4

We report a robust and rigid etb-type metal-organic framework, in which its pore surface is decorated with flexible ethoxyl groups. It shows unprecedentedly selective adsorption of acetone (E-N(T) value of 0.355, kinetic diameter of 4.6 angstrom) over methanol (E-N(T) value of 0.762, kinetic diameter of 3.6 angstrom) for their azeotropic mixture.

Product Details of 99-27-4. About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Hu, H; Zhu, JX; Yang, FL; Chen, ZX; Deng, ML; Weng, LH; Ling, Y; Zhou, YM or concate me.

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

I found the field of Engineering very interesting. Saw the article Production of Methyl p-Hydroxycinnamate by Selective Tailoring of Herbaceous Lignin Using Metal-Based Deep Eutectic Solvents (DES) as Catalyst published in 2020. SDS of cas: 89-91-8, Reprint Addresses Li, XH (corresponding author), South China Univ Technol, State Key Lab Pulp & Paper Engn, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China.. The CAS is 89-91-8. Through research, I have a further understanding and discovery of Methyl 2,2-dimethoxyacetate

Catalytic conversion of lignin to versatile aromatic compounds is attracting increasing attention. However, it is highly desirable but challenging to produce a specific chemical with high yield through lignin depolymerization in a one-pot process because of the complex structure of the lignin molecule (mainly composed of H, G, and S units). In this study, a series of metal-based deep eutectic solvents (M-DESs) were prepared and used for the catalytic tailoring of lignin H units to produce value-added methyl p-hydroxycinnamate (MPC). In particular, M-DES ChCl[FeCl3](2) showed excellent catalytic performance for the selective production of MPC as the sole product with high yield and selectivity (105.8 mg g(-1) and 74.1%, respectively). Extensive characterizations using 2D HSQC NMR, C-13 NMR, and GPC demonstrated that MPC was obtained from the selective tailoring of p-coumaric acid (pCA) units via the cleavage of ester bonds in lignin. Furthermore, M-DES ChCl[FeCl3](2) also exhibited efficiency to other herbaceous lignins, and showed excellent recyclability. Therefore, this work provides an effective strategy for the valorization of lignin.

SDS of cas: 89-91-8. About Methyl 2,2-dimethoxyacetate, If you have any questions, you can contact Li, ZM; Long, JX; Zeng, Q; Wu, YH; Cao, ML; Liu, SJ; Li, XH or concate me.

Reference:
Patent; U C B, Societe Anonyme; US4041077; (1977); A;,
Ester – Wikipedia,
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I found the field of Chemistry; Energy & Fuels; Materials Science very interesting. Saw the article 3D printable robust shape memory PET copolyesters with fire safety via pi-stacking and synergistic crosslinking published in 2019. Recommanded Product: Dimethyl 5-aminoisophthalate, Reprint Addresses Wang, XL; Wang, YZ (corresponding author), Sichuan Univ, Natl Engn Lab Ecofriendly Polymer Mat Sichuan, Collaborat Innovat Ctr Ecofriendly & Fire Safety, State Key Lab Polymer Mat Engn,Coll Light Ind Tex, Chengdu 610064, Sichuan, Peoples R China.. The CAS is 99-27-4. Through research, I have a further understanding and discovery of Dimethyl 5-aminoisophthalate

The practical problems of insufficient mechanical strength, poor processability, tedious synthesis and flammability facing shape memory polymers have limited their further usage in industrial fields, especially in construction and aerospace. A novel and very simple method of ternary polymerization is presented here to prepare multi-functional copolyesters from general poly(ethylene terephthalate) (PET) through the new well-designed third monomer that features pendent phenylacetylene-phenylimide units. The pi-pi stacking between phenylacetylene groups as a reversible net-point not only endows the copolyesters with good shape memory and self-healability, but also reinforces the interchain interaction, leading to high tensile strength (79.6-89.6 MPa). Interestingly enough, the phenylacetylene can synergistically crosslink with the unsaturated C N group generated from the phenylimide during burning, resulting in excellent flame retardancy. Thermoplastic smart copolyesters can be designed into fire alarms and can also be used for 3D printing. The printed geometries exhibit good shape memory behaviors, which could be deformed into a small size to save space during transportation/storage and allow manufacturing freedom for space applications.

Recommanded Product: Dimethyl 5-aminoisophthalate. About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Chen, L; Zhao, HB; Ni, YP; Fu, T; Wu, WS; Wang, XL; Wang, YZ or concate me.

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recommanded Product: 6H-Benzo[c]chromen-6-one. In 2020.0 ADV SYNTH CATAL 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. 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.

About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Boelke, A; Nachtsheim, BJ or concate me.. Recommanded Product: 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 catalyst immobilized on functionalized microporous organic polymers for C-C coupling reactions WOS:000494684600056 published article about SUZUKI-MIYAURA; HYPERCROSSLINKED POLYMERS; HETEROGENEOUS CATALYSTS; PD NANOPARTICLES; SONOGASHIRA; ACCESS; EFFICIENT; REDUCTION; GROWTH; ACID in [Xu, Wei; Liu, Cijie; Xiang, Dexuan; Luo, Qionglin; Shu, You; Lin, Hongwei; Hu, Yangjian; Zhang, Zaixing; Ouyang, Yuejun] Huaihua Univ, Inst Organ Synth, Hunan Engn Lab Preparat Technol Polyvinyl Alcohol, Huaihua 418000, Peoples R China in 2019.0, Cited 60.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. Quality Control of Methyl 3-phenyl-2-propenoate

Two microporous organic polymer immobilized palladium (MOP-Pd) catalysts were prepared from benzene and 1,10-phenanthroline by Scholl coupling reaction and Friedel-Crafts reaction, respectively. The structure and composition of the catalyst were characterized by FT-IR, TGA, N-2 sorption, SEM, TEM, ICP-AES and XPS. MOP-Pd catalysts were found to possess high specific surface areas, large pore volume and low skeletal bone density. Moreover, the immobilized catalyst also had advantages, such as readily available raw materials, chemical and thermal stability, and low synthetic cost. The Pd catalyst is an effective heterogeneous catalyst for carbon-carbon (C-C) coupling reactions, such as the Heck reaction and Suzuki-Miyaura reaction, affording good to high yields. In these reactions, the catalyst was easily recovered and reused five times without significant activity loss.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Xu, W; Liu, CJ; Xiang, DX; Luo, QL; Shu, Y; Lin, HW; Hu, YJ; Zhang, ZX; Ouyang, YJ or concate me.. Quality Control 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

Name: Dimethyl 5-aminoisophthalate. Authors Liu, BW; Zhao, HB; Chen, L; Chen, L; Wang, XL; Wang, YZ in ELSEVIER SCI LTD published article about in [Liu, Bo-Wen; Zhao, Hai-Bo; Chen, Lin; Chen, Li; Wang, Xiu-Li; Wang, Yu-Zhong] Sichuan Univ, Collaborat Innovat Ctr Ecofriendly & Fire Safety, Natl Engn Lab Ecofriendly Polymer Mat Sichuan, Sch Chem Engn,State Key Lab Polymer Mat Engn,MOE, Chengdu 610064, Peoples R China in 2021, Cited 60. The Name is Dimethyl 5-aminoisophthalate. Through research, I have a further understanding and discovery of 99-27-4

Conventional methods to improve the flame retardancy of polymeric materials usually involve the use of flame-retardant elements such as Cl, Br and P, however, their use may bring more smoke and toxic gases hazards, and more importantly, cause non-negligible environmental and ecological problems. In this work, we put forward a novel green strategy that eliminates the use of any conventional flame-retardant elements to improve the flame retardancy by incorporating a synergistically cross-linkable structure (named PN) containing phenylacetylene and phenylimide groups. The resulting PN copolymer exhibited an excellent 55% lower smoke release rate and 68% lower heat release rate than the pure polymer, as well as a high LOI value of 32% and UL-94 V-0 rating with excellent anti-dripping performance. TG-DSC, rheological and FTIR results proved the high cross-linking ability of the PN copolymer due to the synergistic cross-linking effect between the imide-isoimide rearrangement of phenylimide and the self-cross-linking of phenylacetylene. The SEM, Raman and Py-GC/MS results further upheld the condensed phase flame-retardant mechanism. This eco-friendly synergistic cross-linking strategy provided new perspective for the design and synthesis of polymeric materials with excellent flame retardancy, great anti-dripping performance, and low release of heat, smoke, and toxic gas.

Name: Dimethyl 5-aminoisophthalate. About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Liu, BW; Zhao, HB; Chen, L; Chen, L; Wang, XL; Wang, YZ or concate me.

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Rhodium-Catalyzed Synthesis of Amides from Functionalized Blocked Isocyanates WOS:000485090400043 published article about N-ISOCYANATES; CYCLOADDITION REACTIONS; CARBOXYLIC-ACIDS; BOND FORMATION; AMIDATION; ISOTHIOCYANATES; HYDROAMINATION; 1,4-ADDITION; ALLYLATION; ACTIVATION in [Derasp, Joshua S.; Beauchemin, Andre M.] Univ Ottawa, Dept Chem & Biomol Sci, Ctr Catalysis Res & Innovat, Ottawa, ON K1N 6N5, Canada in 2019, Cited 80. HPLC of Formula: C10H11NO4. The Name is Dimethyl 5-aminoisophthalate. Through research, I have a further understanding and discovery of 99-27-4

Isocyanates are useful building blocks for the synthesis of amides, although their widespread use has been limited by their high reactivity, which often results in poor functional group tolerance and a propensity to oligomerize. Herein, a rhodium-catalyzed synthesis of amides is described coupling boroxines with blocked (masked) isocyanates. The success of the reaction hinges on the ability to form both the isocyanate and the organorhodium intermediates in situ. Relying on masked isocyanate precursors and on the high reactivity of the organorhodium intermediate results in broad functional group tolerance, including protic nucleophilic groups such as amines, anilines, and alcohols.

About Dimethyl 5-aminoisophthalate, If you have any questions, you can contact Derasp, JS; Beauchemin, AM or concate me.. HPLC of Formula: C10H11NO4

Reference:
Patent; ASTRA ZENECA AB; NPS PHARMACEUTICALS, INC.; WO2004/14881; (2004); A2;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

I found the field of Engineering; Environmental Sciences & Ecology; Water Resources very interesting. Saw the article Chlorination and bromination of olefins: Kinetic and mechanistic aspects published in 2020.0. Safety of Methyl 3-phenyl-2-propenoate, Reprint Addresses Jiang, J (corresponding author), Guangdong Univ Technol, Inst Environm & Ecol Engn, Guangzhou 510006, Peoples R China.; von Gunten, U (corresponding author), Ecole Polytech Federale Lausanne EPFL, Sch Architecture Civil & Environm Engn ENAC, CH-1015 Lausanne, Switzerland.; von Gunten, U (corresponding author), Swiss Fed Inst Aquat Sci & Technol, Eawag, Ueberlandstr 133, CH-8600 Dubendorf, Switzerland.; von Gunten, U (corresponding author), Swiss Fed Inst Technol, Inst Biogeochem & Pollutant Dynam, CH-8092 Zurich, Switzerland.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate

Hypochlorous acid (HOCl) is typically assumed to be the primary reactive species in free available chlorine (FAC) solutions. Lately, it has been shown that less abundant chlorine species such as chlorine monoxide (Cl2O) and chlorine (Cl-2) can also influence the kinetics of the abatement of certain organic compounds during chlorination. In this study, the chlorination as well as bromination kinetics and mechanisms of 12 olefins (including 3 aliphatic and 9 aromatic olefins) with different structures were explored. HOCl shows a low reactivity towards the selected olefins with species-specific second-order rate constants < 1.0 M(-1)s(-1), about 4-6 orders of magnitude lower than those of Cl2O and Cl-2. HOCl is the dominant chlorine species during chlorination of olefins under typical drinking water conditions, while Cl2O and Cl-2 are likely to play important roles at high FAC concentration near circum-neutral pH (for Cl2O) or at high Cl- concentration under acidic conditions (for Cl-2). Bromination of the 12 olefins suggests that HOBr and Br2O are the major reactive species at pH 7.5 with species-specific second-order rate constants of Br2O nearly 3-4 orders of magnitude higher than of HOBr (ranging from 0.01 to 10 3 M(-1)s(-1)). The reactivities of chlorine and bromine species towards olefins follow the order of HOCl < HOBr < Br2O < Cl2O approximate to Cl-2. Generally, electron-donating groups (e.g., CH2OH and CH3-) enhances the reactivities of olefins towards chlorine and bromine species by a factor of 3-10(2) , while electron- withdrawing groups (e.g., Cl-, Br-, NO2-, COOH-, CHO-,-COOR, and CN-) reduce the reactivities by a factor of 3-10(4). A reasonable linear free energy relationship (LFER) between the species-specific second-order rate constants of Br2O or Cl2O reactions with aromatic olefins and their Hammett sigma(+) was established with a more negative rho value for Br2O than for Cl2O, indicating that Br2O is more sensitive to substitution effects. Chlorinated products including HOCl-adducts and decarboxylated Cl-adduct were identified during chlorination of cinnamic acid by high-performance liquid chromatography/high resolution mass spectrometry (HPLC/HRMS). (c) 2020 The Author(s). Published by Elsevier Ltd. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Li, J; Jiang, J; Manasfi, T; von Gunten, U 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

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. Name: 6H-Benzo[c]chromen-6-one

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

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.. 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