Добірка наукової літератури з теми "Coumarin ring"
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Статті в журналах з теми "Coumarin ring"
Prahadeesh, N., Maheswaran Sithambaresan, and Umaramani Mathiventhan. "A Study on Hydrogen Peroxide Scavenging Activity and Ferric Reducing Ability of Simple Coumarins." Emerging Science Journal 2, no. 6 (December 13, 2018): 417. http://dx.doi.org/10.28991/esj-2018-01161.
Повний текст джерелаMohan, Resmi, M. Vidhyalakshmi, and Venkatasubramanian Sivakumar. "Microwave Assisted Rapid Extraction and Characterization of Coumarin from Fig Plant (Ficus carica)." Asian Journal of Science and Applied Technology 8, no. 1 (May 5, 2019): 1–4. http://dx.doi.org/10.51983/ajsat-2019.8.1.1043.
Повний текст джерелаYoon, Jeong A., and Young Taek Han. "Efficient Synthesis of Pyrido[3,2-c]coumarins via Silver Nitrate Catalyzed Cycloisomerization and Application to the First Synthesis of Polyneomarline C." Synthesis 51, no. 24 (September 30, 2019): 4611–18. http://dx.doi.org/10.1055/s-0037-1610730.
Повний текст джерелаKumari, Sumita, Amit Sharma, and Sonia Yadav. "Pharmacological Potential of Coumarin-Based Derivatives: (A Comprehensive Brief Review)." Oriental Journal Of Chemistry 39, no. 3 (June 30, 2023): 568–76. http://dx.doi.org/10.13005/ojc/390304.
Повний текст джерелаMedyouni, Rawdha, Olfa Naouali, Naceur HAMDI, and Lassaad Baklouti. "Coumarin phthalonitriles: Synthesis and cation binding properties." JOURNAL OF ADVANCES IN CHEMISTRY 11, no. 4 (March 9, 2015): 3512–18. http://dx.doi.org/10.24297/jac.v11i4.6695.
Повний текст джерелаCheke, Rameshwar S., Harun M. Patel, Vaishali M. Patil, Iqrar Ahmad Ansari, Jaya P. Ambhore, Sachin D. Shinde, Adel Kadri, et al. "Molecular Insights into Coumarin Analogues as Antimicrobial Agents: Recent Developments in Drug Discovery." Antibiotics 11, no. 5 (April 24, 2022): 566. http://dx.doi.org/10.3390/antibiotics11050566.
Повний текст джерелаThakur, Abhinay, Rohit Sharma, Vivek Sheel Jaswal, Eugenie Nepovimova, Ashun Chaudhary, and Kamil Kuca. "Psoralen: A Biologically Important Coumarin with Emerging Applications." Mini-Reviews in Medicinal Chemistry 20, no. 18 (December 7, 2020): 1838–45. http://dx.doi.org/10.2174/1389557520666200429101053.
Повний текст джерелаJalhan, Sunny. "Review Article: Various Biological Activities of Coumarin and Oxadiazole Derivatives." Asian Journal of Pharmaceutical and Clinical Research 10, no. 7 (July 1, 2017): 38. http://dx.doi.org/10.22159/ajpcr.2017.v10i7.18461.
Повний текст джерелаSanaryh Mohammed Al-awad, Leaqaa Abdalredha raheem, and Ausama Ayob Jaccob. "Synthesis and Pharmacological Evaluation of Novel Coumarin Derivatives." International Journal of Research in Pharmaceutical Sciences 11, no. 1 (January 27, 2020): 865–74. http://dx.doi.org/10.26452/ijrps.v11i1.1908.
Повний текст джерелаZeydi, Masoud Mohammadi, Seyed Jafar Kalantarian, and Zahra Kazeminejad. "Overview on developed synthesis procedures of coumarin heterocycles." Journal of the Iranian Chemical Society 17, no. 12 (June 27, 2020): 3031–94. http://dx.doi.org/10.1007/s13738-020-01984-1.
Повний текст джерелаДисертації з теми "Coumarin ring"
Trécourt, François. "Elaboration de dérivés carbonylés orthosubstitués de la pyridine : application d'une nouvelle méthode de synthèse de pyridines, synthèse d'hétérocycles du type coumarine et xanthone." Rouen, 1987. http://www.theses.fr/1987ROUES021.
Повний текст джерелаSAKELLARIOU, FARGUES REINE. "Reactivite chimique et photochimique d'alpha -enones dans les milieux organises." Toulouse 3, 1986. http://www.theses.fr/1986TOU30044.
Повний текст джерелаLin, Li, and 林立. "Synthesis and Biological Evaluation of Coumarin-3-Carboxamide Derivatives via Ring-Opening Reaction of Coumarin-3-Activated Aziridines." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/51699927764062756603.
Повний текст джерела臺北醫學大學
藥學系
94
Coumarin is important structure of organic chemistry and belongs to the benzopyrones. Coumarins are widely distributed in plants and have a variety of bioactivities including anticoagulation, estrogenic, dermal photosensitizing, antimicrobial, antioxidation, vasodilation, antithelmintic, sedative and hypnotic, analgesic and hypothermic activities. Aziridine is a class of compound important both in chemical synthesis and in chemotherapy of cancer. Ring opening of 2-methyl-N-acylaziridine by various nucleophiles has been reported. Nucleophilic attack at the unsubstituted carbon atom of the aziridine ring is called ” normal“ ring cleavage (in the SN2). Nucleophilic attack at tertiary or secondary carbon atom of aziridine ring is called “Abnormal” ring cleavage. We used the regioselectivity of ring opening of aziridines to synthesize a series of Coumarin-3- carboxamides. Four series of coumarin derivatives were synthesized from N-(coumarin-3-carboxyl) aziridines in this study. First, we used coumarin-3-carboxyl chloride (20) and a series of azirides with 4N NaOH to synthesize a class of N-(coumarin-3-caboxyl) aziridines (21, 22). Reactions of N-acylazirides with the radical anion of naphthalene had previusly been studied by Stamm, Mall, Falkenstein, Werry and Pen-Yuan Lin. Second, we used N-(coumarin-3-carboxyl) aziridines (21, 22) and activated thiols with the radical anion of naphthalene to synthesize Coumarin-3- carboxamide derivatives (27-40). Third, we used N-(coumarin-3- carboxyl) aziridines and 4-hydroxycoumarins to synthesize coumarin dimmer (41-50). Fourth, we used N-(coumarin-3-carboxyl) aziridines and 7-hydroxycoumarins to synthesize coumarin dimmer (51-54). The physical and chemical characteristics of the synthesized compound 1-35 were measured by 1H-NMR, IR, HRMS, and melting point determination. The cytotoxicities of all synthesized compounds to cancer cell lines (Colon 205, K-562, MCF7) are also examined in this study.
Chen, Yun, and 陳筠. "Aluminum Complexes Bearing [N,O]-Coumarin-Based Ligands : Synthesis, Characterization and Applicationin Ring-Opening Polymerization of Cyclic Ester." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/20417976002348155562.
Повний текст джерела國立中興大學
化學系所
103
The coumarin-derived ligand precursors L1H-L8H have been prepared. Reactions of L1H-L8H with 1.2 equiv. of AlMe3 afford aluminum complexes 48-55. All compounds were characterized by NMR spectroscopy and elemental analysis. Molecular structures of 49, 51, and 52 were determined by X-ray crystallography. The catalytic activities of these complexes towards the ring-opening polymerization of cyclic esters in the presence of alcohols were also examined. Based on the homonuclear decoupled 1H NMR spectra, the atactic polylactides (Pm values ranged from 0.44 to 0.57) were produced using 48-55 as catalysts. Kenetics studies showed that the polymerization reaction is first-order for the complex 48.
cheng, chai-yi, and 鄭佳怡. "A new synthetic strategy in the preparation of aromatic ring-fused coumarins." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/82676749915719283545.
Повний текст джерела國立中正大學
化學所
95
The addition of propargyl tetrahydropyranyl ether to the aromatic ring-fused cyclohexanone followed by dehydration and deprotection gives the corresponding cyclohexenyl-substituted propargl alcohol. This alcohol was oxidized to the aldehyde followed by sequentially partial reduction of the triple bond and eletrocyclization to give the corresponding dihydropyran. After treated with DDQ, the dihydropyran can be converted to benzocoumarin derivative. The aforementioned cyclohexenyl-substituted propargl alcohol could also be prepared from the corresponding cyclohexenyl triflate and the propargyl tetrahydropyranyl ether by Sonogashira coupling. Besides benzocoumarin, we can also synthesize a variety of heteroaromalic ring-fused coumarin. In summary, we have developed a new and versatile synthetic strategy to prepare the aromatic (or heteroaromatic) ring-fused coumarins.
Частини книг з теми "Coumarin ring"
"Shikimic Acid Pathway: Phenols." In Chemical Diversity of Plant Specialized Metabolites, 163–217. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781837671472-00163.
Повний текст джерелаKamal Kant Arya, Rajeshwar, Arun Kumar, Anchala Guglani, Dheeraj Bisht, and Deepak Kumar. "Chromene as Antioxidants." In The Role of Chromenes in Drug Discovery and Development, 215–24. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815124330123010012.
Повний текст джерелаSupuran, Claudiu T. "Coumarins as Carbonic Anhydrase Inhibitors." In Flavonoids and Phenolics, 298–329. BENTHAM SCIENCE PUBLISHERS, 2022. http://dx.doi.org/10.2174/9789815079098122010013.
Повний текст джерелаDell, C. P. "By Ring Contraction of 4-(Halomethyl)coumarins." In Fused Five-Membered Hetarenes with One Heteroatom, 1. Georg Thieme Verlag KG, 2001. http://dx.doi.org/10.1055/sos-sd-010-00092.
Повний текст джерелаV. Vastrad, Jyoti, Pratikhya Badanayak, and Giridhar Goudar. "Phenolic Compounds in Tea: Phytochemical, Biological, and Therapeutic Applications." In Phenolic Compounds - Chemistry, Synthesis, Diversity, Non-Conventional Industrial, Pharmaceutical and Therapeutic Applications. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.98715.
Повний текст джерелаТези доповідей конференцій з теми "Coumarin ring"
Nagasawa, Yutaka, Arkadiy P. Yartsev, Keisuke Tominaga, and Keitaro Yoshihara. "Chemical Substitution and Deuterium Isotope Effects on Ultrafast Intermolecular Electron Transfer: Possible Role of Molecular Vibrations." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/up.1994.fa.3.
Повний текст джерела