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Artykuły w czasopismach na temat "Heterocycles and applications"
Andres, C. J., Derek J. Denhart, Milind S. Deshpande i Kevin W. Gillman. "Recent Advances in the Solid Phase Synthesis of Drug Heterocyclic Small Molecules". Combinatorial Chemistry & High Throughput Screening 2, nr 4 (sierpień 1999): 191–210. http://dx.doi.org/10.2174/1386207302666220204193145.
Pełny tekst źródłaLuna, Isadora Silva, Rayssa Marques Duarte da Cruz, Ryldene Marques Duarte da Cruz, Rodrigo Santos Aquino de Araújo i Francisco Jaime Bezerra Mendonça-Junior. "1,4-Dithiane-2,5-diol: A Versatile Synthon for the Synthesis of Sulfur-containing Heterocycles". Current Organic Synthesis 15, nr 8 (17.12.2018): 1026–42. http://dx.doi.org/10.2174/1570179415666180821154551.
Pełny tekst źródłaHoffman, Gavin R., i Allen M. Schoffstall. "Syntheses and Applications of 1,2,3-Triazole-Fused Pyrazines and Pyridazines". Molecules 27, nr 15 (22.07.2022): 4681. http://dx.doi.org/10.3390/molecules27154681.
Pełny tekst źródłaMasdeu, Carme, Maria Fuertes, Endika Martin-Encinas, Asier Selas, Gloria Rubiales, Francisco Palacios i Concepcion Alonso. "Fused 1,5-Naphthyridines: Synthetic Tools and Applications". Molecules 25, nr 15 (31.07.2020): 3508. http://dx.doi.org/10.3390/molecules25153508.
Pełny tekst źródłaBoelke, Andreas, Soleicha Sadat, Enno Lork i Boris J. Nachtsheim. "Pseudocyclic bis-N-heterocycle-stabilized iodanes – synthesis, characterization and applications". Chemical Communications 57, nr 60 (2021): 7434–37. http://dx.doi.org/10.1039/d1cc03097c.
Pełny tekst źródłaKerru, Nagaraju, Lalitha Gummidi, Suresh Maddila, Kranthi Kumar Gangu i Sreekantha B. Jonnalagadda. "A Review on Recent Advances in Nitrogen-Containing Molecules and Their Biological Applications". Molecules 25, nr 8 (20.04.2020): 1909. http://dx.doi.org/10.3390/molecules25081909.
Pełny tekst źródłaYadav, Shailendra, Sushma Singh i Chitrasen Gupta. "A CONCISE OVERVIEW ON HETEROCYCLIC COMPOUNDS EXHIBITING PESTICIDAL ACTIVITIES". International Journal of Advanced Research 9, nr 08 (31.08.2021): 989–1004. http://dx.doi.org/10.21474/ijar01/13352.
Pełny tekst źródłaNiedballa, Jonas, i Thomas J. J. Müller. "Heterocycles by Consecutive Multicomponent Syntheses via Catalytically Generated Alkynoyl Intermediates". Catalysts 12, nr 1 (13.01.2022): 90. http://dx.doi.org/10.3390/catal12010090.
Pełny tekst źródłaSparr, Christof, i Christian Fischer. "Configurationally Stable Atropisomeric Acridinium Fluorophores". Synlett 29, nr 16 (3.08.2018): 2176–80. http://dx.doi.org/10.1055/s-0037-1610233.
Pełny tekst źródłaKeszei, Soma J., Márk Váradi i Rita Skoda-Földes. "Urea-Functionalized Heterocycles: Structure, Hydrogen Bonding and Applications". Molecules 28, nr 23 (24.11.2023): 7757. http://dx.doi.org/10.3390/molecules28237757.
Pełny tekst źródłaRozprawy doktorskie na temat "Heterocycles and applications"
Richmond, Craig J. "Applications for imidazophenanthridine-based heterocycles". Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/1406/.
Pełny tekst źródłaDavies, Deiniol Hedd. "Synthesis and applications of Guanidine Heterocycles". Thesis, Bangor University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519556.
Pełny tekst źródłaMossaraf, Hossain. "Solvent free synthesis of some heterocycles and their applications". Thesis, University of North Bengal, 2017. http://ir.nbu.ac.in/handle/123456789/2621.
Pełny tekst źródłaRozgowska, Emma Jayne. "N-amino heterocycles : applications in flash vacuum pyrolysis". Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5280.
Pełny tekst źródłaTao, Beata 1973. "Applications of planar-chiral heterocycles in asymmetric catalysis". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8047.
Pełny tekst źródłaVita.
Includes bibliographical references.
The development of planar-chiral heterocycles for asymmetric catalysis and their applications to enantioselective processes were investigated. Reactions including the kinetic resolution of propargylic alcohols, the enantioselective ring opening of meso epoxides, and the asymmetric hydrosilylation of ketones were studied. ... During the past few years, our group has developed lb as one of the most effective and versatile nonenzymatic acylation catalysts for the kinetic resolution of arylalkylcarbinols. Surprisingly, however, when the optimized reaction conditions were applied to the kinetic resolution of secondary propargylic alcohols, only low to moderate selectivity factors were obtained. Detailed investigations revealed that triethylamine serves as a competitive general base catalyst in the acylation reaction of propargylic alcohols, thereby suppressing the intrinsic selectivity factor. When base is omitted, the selectivity factor for propargylic alcohol 2 (R1 = Ph, R2= Me) increases from 6 to 20. Using this new protocol, we can effect the kinetic resolution of a number of propargylic alcohols with selectivity factors of 10 or above. ... Catalysts in which oxygen is the nucleophilic site effect a number of useful transformations. In view of the utility of planar-chiral pyridine derivatives such as 1, it occurred to us that pyridine N-oxides 3 might also prove to be effective asymmetric catalysts. We synthesized complexes 3a-c and were gratified to discover that 3a efficiently catalyzes the ring opening of cis-stilbene oxide by SiC14, albeit in modest enantiomeric excess.
(cont.) By increasing the steric demand of the bottom ring, we found that the selectivity increases significantly. Thus, bulky derivative 3c affords 92% ee in the ring opening of cis-stilbene oxide at -85 C. A number of epoxides can be desymmetrized in very good yield and high stereoselectivity under these conditions (up to 98% ee). ... In addition, we have also synthesized a new family of planar-chiral N,P-ligands (4). The ligand design allows incorporation of different substituents on the phosphorus atom and on the C5R5 bottom ring, thereby providing a means for tuning catalyst enantioselectivity. We chose the asymmetric hydrosilylation of ketones to test the effectiveness of our ligand design. In general, sterically demanding silanes such as MesPhSiH2 and (o-tol)2SiH2 furnish better enantioselectivities than simple silanes like Ph2SiH2. Among the planar-chiral ligands tested, we found that ligand 4a gives the best yields and enantioselectivities for a wide array of substrates (arylalkyl ketones: up to 99% ee; dialkyl ketones: up to 96% ee). Deuterated benzaldehyde-l-d can also be reduced with excellent enantioselectivity (95% ee). Access to chiral silanes is also possible using the same ligand.
by Beata Tao.
Ph.D.
Shrestha, Tej Bahadur. "Heterocycles for life-sciences applications and information storage". Diss., Kansas State University, 2010. http://hdl.handle.net/2097/13540.
Pełny tekst źródłaDepartment of Chemistry
Stefan H. Bossmann
The photochromic spirodihydroindolizine/betaine (DHI/B) system has been reinvestigated applying picosecond, microsecond, stationary absorption measurements, and NMR-kinetics. The first surprise was that the electronic structure of the betaines is quite different than commonly assumed. The photochemical ring-opening of DHIs to betaines is a conrotatory 1,5 electrocyclic reaction, as picosecond absorption spectroscopy confirms. The (disrotatory) thermal ring-closing occurs from the cisoid betaine. The lifetime of the transoid betaine is 60 s at 300 K, whereas the lifetime of the cisoid isomer is of the order of 250 microseconds. According to these results, the electrocyclic back reaction of the betaines to the DHI is NOT rate determining, as previously thought, but the cisoid-transoid-isomerization of the betaine. Although the presence of a second nitrogen atom increases the photostability of the spirodihydroindolizine-pyridazine/betaine-system remarkably, the photochemical reaction mechanism appears to be exactly the same for spirodihydroindolizine-pyridazine/betaine-system. A nondestructive photoswitch or an information recording systems has been explored using styryl-quinolyldihydroindolizines. Both isomers DHI and betaine are fluorescent. When the blue betaine is stabilized in a thin polymethyl methacrylate (PMMA) matrix, it is stable for several hours even in room temperature and very stable at 77K. Although irradiation of visible light = 532 nm allows the photo-induced reaction of the Betaine back to the DHI, a nondestructive read-out can be performed at λ = 645 nm upon excitation with λ = 580 nm. Image recording (write) and read-out, as well as information storage (at 77K) have been demonstrated. Charged and maleimide-functionalized DHI/B systems have beed synthesized for use as photochemical gates of the mycobacterial channel porin MspA. Positively charged and maleimide functionalized DHI groups that were attached to the DHI/B-system permit the binding of the photoswitch to selective positions in the channel proteins due to the presence of a cysteine moiety. An inexpensive new method for the large scale synthesis of coelenterazine is developed. A modified Negishi coupling reaction is used to make pyrazine intermediates from aminopyrazine as an economical starting material. This method permits the use of up to 1g coelenterazine per kg body weight and day, which turns the renilla transfected stem cells into powerful light sources.
Goon, Simon. "Applications of the Vilsmeier reagent in synthesis". Thesis, University of Sunderland, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245363.
Pełny tekst źródłaMelling, Robert Craig. "Synthesis and applications of enantiopure N-heterocycles of C2-symmetry". Thesis, Queen Mary, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393104.
Pełny tekst źródłaFra, Fernández Laura. "New Applications of Iodine(III) Reactivity: Synthesis and Functionalization of Heterocycles". Doctoral thesis, Universitat Rovira i Virgili, 2017. http://hdl.handle.net/10803/456301.
Pełny tekst źródłaSe han desarrollado dos metodologías diferentes para la síntesis de indoles empleando la reactividad de Yodo hipervalente. En primer lugar, se ha propuesto una reacción de ciclación en la que se han obtenido un total de 21 ejemplos con buenos rendimientos, además de estudiar el posible mecanismo de dicha reacción a través de diferentes pruebas mecanísticas como por ejemplo la técnica de marcaje de deuterio. Por otro lado, se ha realizado una metodología alternativa con sustratos de partida diferentes para obtener un total de 18 ejemplos en buenos rendimientos a través tanto de una transformación estequiométrica como catalítica. El mecanismo de la reacción se ha estudiado en profundidad realizando diferentes estudios mecanísticos, como por ejemplo, el efecto de los sustituyentes de diferente naturaleza electrónica en uno de los anillos aromáticos, a través de la correlación de Hammett. Además de la aplicación de compuestos de yodo hipervalente para la síntesis de heterociclos, sus derivados quirales se han usado para el desarrollo de una reacción enantioselectiva para la 4-hidroxilación de fenoles.
Two different methodologies have been developed for the synthesis of indoles using hypervalent iodine reactivity. First, a cyclization reaction has been proposed in which a total of 21 examples were obtained with good yields. In order to elucidate the reaction mechanism, different kinetic experimentes were performed such as the deuterium labellind technique . On the other hand, an alternative methodology has been performed with different starting materials obtaining a total of 18 examples in good yields through both a stoichiometric and catalytic transformation. The mechanism of the reaction has been studied by performing different mechanistic studies, such as the effect of the substituents of different electronic nature on one of the aromatic rings, through the Hammett correlation. In addition to the application of hypervalent iodine compounds for the synthesis of heterocycles, their chiral derivatives have been used for the development of an enantioselective reaction for the 4-hydroxylation of phenols.
Gentili, Denis <1982>. "Synthesis of five-membered heterocycles and of nanostructured systems for nanomedicine applications". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amsdottorato.unibo.it/2461/1/Gentili_Denis_tesi.pdf.
Pełny tekst źródłaKsiążki na temat "Heterocycles and applications"
R, Katritzky Alan, red. Novel applications of heterocycles in synthesis. Oxford: Pergamon, 1996.
Znajdź pełny tekst źródłaR, Katritzky Alan, Soldatenkov, A. T. (Anatoliĭ Timofeevich) i ebrary Inc, red. Heterocycles in life and society: An introduction to heterocyclic chemistry, biochemistry and applications. Wyd. 2. Chichester, West Sussex: Wiley, 2011.
Znajdź pełny tekst źródłaThe chemistry of heterocycles: Structure, reactions, syntheses, and applications. Wyd. 2. [Weinheim]: Wiley-VCH, 2003.
Znajdź pełny tekst źródłaEicher, Theophil. The chemistry of heterocycles: Structure, reactions, syntheses, and applications. Wyd. 2. Weinheim: Wiley-VCH, 2004.
Znajdź pełny tekst źródłaEicher, Theophil. The chemistry of heterocycles: Structure, reactions, syntheses, and applications. Stuttgart: G. Thieme, 1995.
Znajdź pełny tekst źródłaSynthetic applications of 1,3-dipolar cycloaddition chemistry toward heterocycles and natural products. Hoboken, NJ: Wiley, 2003.
Znajdź pełny tekst źródłaPadwa, Albert, i William H. Pearson, red. Synthetic Applications of 1,3-Dipolar Cycloaddition Chemistry Toward Heterocycles and Natural Products. New York, USA: John Wiley & Sons, Inc., 2002. http://dx.doi.org/10.1002/0471221902.
Pełny tekst źródłaservice), SpringerLink (Online, red. Halogenated Heterocycles: Synthesis, Application and Environment. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.
Znajdź pełny tekst źródła1956-, Nylund Kristian, i Johansson Peder 1945-, red. Heterocyclic compounds: Synthesis, properties, and applications. Hauppauge, N.Y: Nova Science Publishers, 2009.
Znajdź pełny tekst źródłaPatel, Ramesh. Triazines: Synthesis, applications, and toxicity. Hauppauge, N.Y: Nova Science Publishers, 2011.
Znajdź pełny tekst źródłaCzęści książek na temat "Heterocycles and applications"
Dwivedi, Sumant, i Tatsuo Kaneko. "Aromatic Bioplastics with Heterocycles". W Green Polymer Chemistry: New Products, Processes, and Applications, 201–18. Washington, DC: American Chemical Society, 2018. http://dx.doi.org/10.1021/bk-2018-1310.ch014.
Pełny tekst źródłaMele, Giuseppe, Diego Lomonaco i Selma E. Mazzetto. "Cardanol-Based Heterocycles: Synthesis and Applications". W Cashew Nut Shell Liquid, 39–56. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-47455-7_3.
Pełny tekst źródłaNešpůrek, S., J. Sworakowski, J. Lipiński, S. Böhm i J. Kuthan. "Photocolouration of Hypervalent Heterocycles". W Multiphoton and Light Driven Multielectron Processes in Organics: New Phenomena, Materials and Applications, 261–80. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4056-0_20.
Pełny tekst źródłaAkritopoulou-Zanze, Irini, i Stevan W. Djuric. "Applications of MCR-Derived Heterocycles in Drug Discovery". W Topics in Heterocyclic Chemistry, 231–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/7081_2010_46.
Pełny tekst źródłaAkritopoulou-Zanze, Irini. "Applications of Isocyanides in the Synthesis of Heterocycles". W Isocyanide Chemistry, 451–92. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527652532.ch13.
Pełny tekst źródłaChaudhuri, Haribandhu, Bhaskar Sarmah i Niranjan Karak. "Synthesis of Heterocycles Over Nanoporous Zeolites". W Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, 1–31. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-11155-7_26-1.
Pełny tekst źródłaDake, Satish A., Swapanil R. Sarda, Rajendra P. Marathe, Rajesh B. Nawale, Uday A. Deokate, Somshekhar S. Khadabadi i Rajendra P. Pawar. "Imidazolium Ionic Liquids: An Environment-Friendly Medium for Various Applications". W Green Chemistry: Synthesis of Bioactive Heterocycles, 201–30. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1850-0_7.
Pełny tekst źródłaRostamnia, Sadegh, i Esmail Doustkhah. "Synthesis and Synthetic Applications of Biologically Interesting Rhodanine and Rhodanine-Based Scaffolds". W Green Chemistry: Synthesis of Bioactive Heterocycles, 253–75. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1850-0_9.
Pełny tekst źródłaChung, Cheol K., i Matthew L. Crawley. "Transition Metal-Catalyzed Synthesis of Five- and Six-Membered Heterocycles". W Applications of Transition Metal Catalysis in Drug Discovery and Development, 257–75. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118309872.ch6.
Pełny tekst źródłaUkaji, Yutaka, i Takahiro Soeta. "Development of New Methods for The Construction of Heterocycles Based on Cycloaddition Reaction of 1,3-Dipoles". W Methods and Applications of Cycloaddition Reactions in Organic Syntheses, 263–82. Hoboken, New Jersey: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118778173.ch11.
Pełny tekst źródłaStreszczenia konferencji na temat "Heterocycles and applications"
Prima, D. O., D. S. Baev, E. V. Vorontsova, T. S. Frolova, I. Yu Bagryanskaya, Yu G. Slizhov, T. G. Tolstikova, A. Yu Makarov i A. V. Zibarev. "New cancer cells apoptosis agents: Fluorinated aza-heterocycles". W PHYSICS OF CANCER: INTERDISCIPLINARY PROBLEMS AND CLINICAL APPLICATIONS: Proceedings of the International Conference on Physics of Cancer: Interdisciplinary Problems and Clinical Applications (PC IPCA’17). Author(s), 2017. http://dx.doi.org/10.1063/1.5001636.
Pełny tekst źródłaCastro, M. Cidália R., A. Maurício C. Fonseca, M. Belsley i M. Manuela M. Raposo. "Highly efficient and thermally stable NLO organic materials based on pyrrole and thiophene heterocycles". W International Conference on Applications of Optics and Photonics, redaktor Manuel F. Costa. SPIE, 2011. http://dx.doi.org/10.1117/12.892205.
Pełny tekst źródłaCastro, M. Cidália R., A. Maurício C. Fonseca, M. Belsley i M. Manuela M. Raposo. "Synthesis and evaluation of NLO properties of π-conjugated donor-acceptor systems bearing pyrrole and thiophene heterocycles". W International Conference on Applications of Optics and Photonics, redaktor Manuel F. Costa. SPIE, 2011. http://dx.doi.org/10.1117/12.892124.
Pełny tekst źródłaFadil MOUSA, Enaam, i Ibtissam Khalifa JASSIM. "SYNTHESIS ,CHARACTERIZATION AND BIOLOGICAL ACTIVITY STUDY OF SOME HETEROCYCLIC COMPOUNDS". W IV.International Scientific Congress of Pure,Appliedand Technological Sciences. Rimar Academy, 2022. http://dx.doi.org/10.47832/minarcongress4-18.
Pełny tekst źródłaStevanović, Nevena Lj, Mia Stanković, Tina P. Andrejević, Darko P. Ašanin, Ivana M. Stanojević i Biljana Đ. Glišić. "DNA AND BSA INTERACTIONS OF COPPER(II) AND ZINC(II) COMPLEXES WITH ANTIFUNGAL AGENT FLUCONAZOLE". W 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.399s.
Pełny tekst źródłaRosa, Fernanda A., Michael J. V. da Silva, Davana S. Gonçalves, Daniela H. Arita, Camila S. S. Tozatti i Gisele de F. G. Bandoch. "Synthetic Application of New Enaminodiketone: Regioespecific Synthesis of Aza-Heterocycles". W 15th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_2013101145054.
Pełny tekst źródłaAriunbold, Gombojav O., Bryan Semon, Surpiya Nagpal i Yuri Rostovtsev. "Cooperative Emissions from Hydrogen-Bonded Heterocyclic Organic Compounds". W CLEO: Applications and Technology. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/cleo_at.2020.aw4k.4.
Pełny tekst źródłaShutalev, Anatoly. "New Synthetic Application of Ureidoalkylation in Heterocyclic Chemistry". W The 1st International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 1997. http://dx.doi.org/10.3390/ecsoc-1-02013.
Pełny tekst źródłaTwieg, Robert, S. Gu, L. Sukhomlinova, G. G. Malliaras, R. Fan i D. Culjikovic. "Heterocyclic liquid crystals designed for optical light emitting diode applications". W Organic Thin Films. Washington, D.C.: OSA, 1999. http://dx.doi.org/10.1364/otf.1999.sud1.
Pełny tekst źródłaJaiswal, Shalini, Preeti Singh Bahadur, Ankita Mathur i Ruchira Srivastava. "Nuclear Magnetic Resonance Spectroscopy Application in charterization of Heterocyclic Compounds". W 2021 International Conference on Technological Advancements and Innovations (ICTAI). IEEE, 2021. http://dx.doi.org/10.1109/ictai53825.2021.9673200.
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