30456-56-5Relevant academic research and scientific papers
Organic electrode material and preparation method and application thereof
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Paragraph 0047-0051, (2021/01/30)
The invention relates to an organic electrode material and a preparation method and application thereof, and belongs to the technical field of materials. The organic electrode material belongs to conjugated carboxylate. The material is used as a working electrode of a sodium ion battery, the specific discharge capacities of an organic electrode material I-1 and an organic electrode material I-2 are 171mAh. g and 184mAh.g respectively after 100 cycles at the current density of 100mA/g, and half batteries prepared by taking I-1 and I-2 as the electrode materials can provide high specific capacity of 119mAh/g and 90mAh/g respectively in a voltage platform test process when 5C is 935mA/g. And the working voltages of the two materials both are between 0.4V and 0.7 V. The electrodematerial prepared by the method can be well applied to the sodium-ion battery, and has excellent oxidation-reduction capability and cycling stability when used as a negative electrode material. The organic electrode material is simple in preparation process and low in cost, and meets the requirement of large-scale preparation.
Cyrene as a Bio-Based Solvent for the Suzuki-Miyaura Cross-Coupling
Wilson, Kirsty L.,Murray, Jane,Jamieson, Craig,Watson, Allan J. B.
supporting information, p. 650 - 654 (2017/12/26)
The Suzuki-Miyaura (SM) cross-coupling is the most broadly utilized Pd-catalyzed C-C bond-forming reaction in the chemical industry. A large proportion of SM couplings employ dipolar aprotic solvents; however, current sustainability initiatives and increasingly stringent regulations advocate the use of alternatives that exhibit more desirable properties. Here we describe the scope and utility of the bio-derived solvent Cyrene in SM cross-couplings and evaluate its suitability as a reaction medium for this benchmark transformation from discovery to gram scale.
Palladium-catalyzed decarboxylative cross-coupling of 3-pyridyl and 4-pyridyl carboxylates with aryl bromides
Chennamaneni, Lohitha Rao,William, Anthony D.,Johannes, Charles W.
, p. 1293 - 1296 (2015/03/04)
Decarboxylative cross-coupling of 3-pyridyl and 4-pyridyl carboxylates with aryl bromides is reported. Using a bimetallic system of Cu2O and Pd(PPh3)4, the scope of the reaction is demonstrated by the synthesis of 27 pyridine-containing biaryls in moderate to good yields.
Inhibition of 1-deoxy-d-xylulose-5-phosphate reductoisomerase by lipophilic phosphonates: SAR, QSAR, and crystallographic studies
Deng, Lisheng,Diao, Jiasheng,Chen, Pinhong,Pujari, Venugopal,Yao, Yuan,Cheng, Gang,Crick, Dean C.,Prasad, B. V. Venkataram,Song, Yongcheng
scheme or table, p. 4721 - 4734 (2011/09/19)
1-Deoxy-d-xylulose-5-phosphate reductoisomerase (DXR) is a novel target for developing new antibacterial (including antituberculosis) and antimalaria drugs. Forty-one lipophilic phosphonates, representing a new class of DXR inhibitors, were synthesized, among which 5-phenylpyridin-2-ylmethylphosphonic acid possesses the most activity against E. coli DXR (EcDXR) with a K i of 420 nM. Structure-activity relationships (SAR) are discussed, which can be rationalized using our EcDXR:inhibitor structures, and a predictive quantitative SAR (QSAR) model is also developed. Since inhibition studies of DXR from Mycobacterium tuberculosis (MtDXR) have not been performed well, 48 EcDXR inhibitors with a broad chemical diversity were found, however, to generally exhibit considerably reduced activity against MtDXR. The crystal structure of a MtDXR:inhibitor complex reveals the flexible loop containing the residues 198-208 has no strong interactions with the 3,4-dichlorophenyl group of the inhibitor, representing a structural basis for the reduced activity. Overall, these results provide implications in the future design and development of potent DXR inhibitors.
Experimental and computational probes of a self-assembled capsule
Iwasawa, Tetsuo,Ajami, Dariush,Rebek Jr., Julius
, p. 2925 - 2928 (2007/10/03)
This research was undertaken to explore the interior surface of a synthetic receptor 1.1 with arylpyridines as guests. The interior surface differentiates the guests through the recognition of their nitrogen atoms. Experimental and computational analyses revealed that there is a delicate balance of attractions and repulsions between the host and the lone pairs of guests.
