Literatura académica sobre el tema "Ring opening of azirine and aziridines"
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Artículos de revistas sobre el tema "Ring opening of azirine and aziridines"
Carramiñana, Victor, Ana M. Ochoa de Retana, Francisco Palacios y Jesús M. de los Santos. "Synthesis of α-Aminophosphonic Acid Derivatives Through the Addition of O- and S-Nucleophiles to 2H-Azirines and Their Antiproliferative Effect on A549 Human Lung Adenocarcinoma Cells". Molecules 25, n.º 15 (22 de julio de 2020): 3332. http://dx.doi.org/10.3390/molecules25153332.
Texto completoHuck, Lena, Juan F. González, Elena de la Cuesta y J. Carlos Menéndez. "Three-component synthesis of highly functionalized aziridines containing a peptide side chain and their one-step transformation into β-functionalized α-ketoamides". Beilstein Journal of Organic Chemistry 12 (8 de agosto de 2016): 1772–77. http://dx.doi.org/10.3762/bjoc.12.166.
Texto completoWosińska-Hrydczuk, Marzena, Przemysław J. Boratyński y Jacek Skarżewski. "Regioselective and Stereodivergent Synthesis of Enantiomerically Pure Vic-Diamines from Chiral β-Amino Alcohols with 2-Pyridyl and 6-(2,2′-Bipyridyl) Moieties". Molecules 25, n.º 3 (7 de febrero de 2020): 727. http://dx.doi.org/10.3390/molecules25030727.
Texto completoD’hooghe, Matthias, Hyun-Joon Ha y Lingamurthy Macha. "Deployment of Aziridines for the Synthesis of Alkaloids and Their Derivatives". Synthesis 51, n.º 07 (18 de febrero de 2019): 1491–515. http://dx.doi.org/10.1055/s-0037-1611715.
Texto completoCytlak, T., M. Saweliew, M. Kubicki y H. Koroniak. "Synthesis of trifluoromethyl γ-aminophosphonates by nucleophilic aziridine ring opening". Organic & Biomolecular Chemistry 13, n.º 39 (2015): 10050–59. http://dx.doi.org/10.1039/c5ob01411e.
Texto completoGleede, Tassilo, Louis Reisman, Elisabeth Rieger, Pierre Canisius Mbarushimana, Paul A. Rupar y Frederik R. Wurm. "Aziridines and azetidines: building blocks for polyamines by anionic and cationic ring-opening polymerization". Polymer Chemistry 10, n.º 24 (2019): 3257–83. http://dx.doi.org/10.1039/c9py00278b.
Texto completoChakraborty Ghosal, Nirnita, Sougata Santra, Sudarshan Das, Alakananda Hajra, Grigory V. Zyryanov y Adinath Majee. "Organocatalysis by an aprotic imidazolium zwitterion: regioselective ring-opening of aziridines and applicable to gram scale synthesis". Green Chemistry 18, n.º 2 (2016): 565–74. http://dx.doi.org/10.1039/c5gc01323b.
Texto completoBhandari, Sonal, Sravani Sana, Vandana Lahoti, Ramya Tokala y Nagula Shankaraiah. "Ring-opening cyclization of activated spiro-aziridine oxindoles with heteroarenes: a facile synthetic approach to spiro-oxindole-fused pyrroloindolines". RSC Advances 10, n.º 27 (2020): 16101–9. http://dx.doi.org/10.1039/d0ra00684j.
Texto completoKeniche, Assia, Samia Bellifa, Hafida Hassaine y Joseph Kajima Mulengi. "Development of new antibacterial agents". Medical Technologies Journal 1, n.º 2 (8 de junio de 2017): 31–32. http://dx.doi.org/10.26415/2572-004x-vol1iss2p31-32.
Texto completoSiebert, Matthew R., Andrei K. Yudin y Dean J. Tantillo. "Cycloaddition/Ring Opening Reaction Sequences ofN-Alkenyl Aziridines: Influence of the Aziridine Nitrogen on Stereoselectivity". Organic Letters 10, n.º 1 (enero de 2008): 57–60. http://dx.doi.org/10.1021/ol702623d.
Texto completoTesis sobre el tema "Ring opening of azirine and aziridines"
Pulipaka, Aravinda B. "Intramolecular Ring Opening Reactions of Aziridines by π-Nucleophiles". Ohio University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1205514895.
Texto completoLake, Fredrik. "C2- and C3-symmetric ligands via ring-opening of aziridines". Doctoral thesis, KTH, Chemistry, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3424.
Texto completoThis thesis deals with the design and synthesis of chiralenantiopure nitrogencontaining ligands and the use of theseligands in asymmetric catalysis. A modular synthetic approachto enantiopure nitrogen-containing ligands was developed. Thesynthetic method is based on the ring-opening of activatedchiral aziridines by nitrogen nucleophiles. The aziridines areconveniently prepared from amino alcohols. The structure oftheaziridine and of the nucleophile can be extensively varied andlibraries of ligands are easily prepared. The use of primaryamines affords C2-symmetric bis(sulfonamides), whereas the use ofammonia affords C3-symmetric tris(sulfonamides) that can beelaborated into the corresponding tetra-amines.
The C2- and C3-symmetric ligands were used in the asymmetrictitaniummediated addition of diethylzinc to benzaldehyderesulting in modest enantioselection, 76% ee. A thoroughinvestigation of the reaction conditions revealed that theamount of Ti(OiPr)4has a decisive effect on the reaction rate and thestereochemical outcome of the reaction. The reaction timedecreased from about 90 hours to 15 minutes and theenantioselectivity changed from 26% of the (R)- enantiomer to72% of the (S)-enantiomer when the Ti(OiPr)4:benzaldehyde ratio was increased from 0.125:1 to1.48:1. Moreover, the titanium-mediated addition of diethylzincto benzaldehyde was studied in the presence of chiraladditives. The bis(sulfonamides) were also used in thecyclopropanation of cinnamyl alcohol. However, only lowenantioselection was observed, 27% ee.
The C3-symmetric tetra-amines were reacted to formazaphosphatranes. These weak acids were only partiallydeprotonated by the strong base KOtBu to form the correspondingproazaphosphatranes. The unexpectedly strong basicity of theproazaphosphatranes was believed to be due to steric effects assuggested by DFT calculations. The tetra-amines and thesulfonamides were used for the preparation of metal complexesof Lewis acidic metals such as titanium(IV) andzirconium(IV).
Keywords:asymmetric catalysis, aziridine, benzaldehyde,diethylzinc, enantioselective, ligand, proazaphosphatrane,ring-opening, sulfonamide, symmetry, titanium, zirconium
Kasthuri, Mahesh. "Nouveaux anti-viraux pour le traitement des affections associées aux virus émergents". Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20085.
Texto completoIn the first chapter, we presented a brief history of antiviral chemotherapy and use of nucleos(t)ide analogues, especially acyclic nucleoside phosphonates as potential antiviral agents. In the chapter-II we have successfully synthesized ¦Â-keto, ¦Â-hydroxylamino and ¦Â-O-(benzyl)hydroxylamino ANPs of adenine and cytosine derivatives. Then (R) and (S)-¦Â-hydroxy-ANPs were prepared via chiral resolution of racemic ¦Â-hydroxy-ANPs with (S)-MPA and assignment of absolute configuration was achieved using NMR and molecular modeling studies. We also developed a methodology for the synthesis of ¦Â-azido-ANPs and those were used for the preparation of ¦Â-amino-ANPs by catalytic hydrogenation. In third chapter, we synthesized 2H-azirine and cis-aziridine-ANPs and explored their ring opening to functionalized ¦Á,¦Â-ANPs. The novel ANPs obtained during this study were evaluated for their inhibitory effect on a number of DNA and RNA viruses in cell culture experiments
Pulipaka, Aravinda B. "Intramolecular ring opening reactions of aziridines by [pi]-nucleophiles /". View abstract, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3306530.
Texto completoFang, Fang. "Synthesis of Bicyclic and Tricyclic Analogues of Oxazolidinone". Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1357312054.
Texto completoMoss, Thomas. "New Methods in Stereoselective Alkylation : Enantio- and Diastereoselective Ring Opening of Aziridines". Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516400.
Texto completoFerguson, Alexandra. "Synthesis and ring-opening of NH-aziridine-2-carboxylates, and preparation of novel pyrazolo[3,4-d]pyrimidines for kinase-substrate identification". Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/11074.
Texto completoZhang, Jianbin. "Ring-opening of cycloalkane epoxides and aziridines with aromatic amines : toward the total synthesis of pactamycin". Thèse, 2009. http://hdl.handle.net/1866/3794.
Texto completoAbstract Ring-opening reactions of epoxides and aziridines have been extensively studied. The influence of different protecting groups on the hydroxyl group in the ring-opening reactions of cis- and trans- 3-hydroxy-1,2-cycloalkane epoxides with aromatic amines was studied. It was shown that Yb(OTf)3 in toluene was a mild catalyst for regioselective ring-opening, to give -anilino cycloalkanols in good yields. Heating the reaction mixture accelerated the rate of the reaction, albeit at the expense of yield. The aniline moiety was regioselectively added at the carbon furthest from the hydroxyl or ether group to yield a single regioisomer. The same trend was also observed with 3-azidocyclohex-1-ene epoxides and the corresponding 3-carbamates. The reaction time became shorter when acetonitrile was used as solvent, possibly due to the homogeneous medium. Ytterbium(III) triflate has also been used as the catalyst for the regioselective ring-opening of unactivated aziridines in cyclohexanes having an azide or benzyl ether substituent. Azide ion or aniline forms the corresponding trans-products giving access to vicinal diamines in good yields. A racemic ω-alkoxy p-methoxy benzyl ether HDAC inhibitor has been prepared in 8 synthetic steps (26% overall yield) from 1-((tert-butyldiphenylsilyl)oxy)hept-6-en-2-ol. This is an improvement over the published method (9 steps, 16% overall yield). The cross-metathesis method proved to be efficient and practical in this strategy, and alkylation using p-methoxybenzyl trichloroacetimidate in the presence of Sc(OTf)3 improved the overall yield of the synthesis. An amino alcohol that contains all the core carbons, functional groups and the required stereochemistry present in pactamycin was obtained starting from L-threonine over 27 steps. The methodology described in this thesis allows for a synthesis of this key intermediate on a multigram scale.
Vale, João Rafael Campos do. "Photochemical synthesis and functional transformations of bicyclic vinyl aziridines". Master's thesis, 2015. http://hdl.handle.net/10362/17045.
Texto completoAlagiri, K. "Metal-Mediated And Metal-Free Organic Transformations : C-H Functionalization Of Tertiary Amines, Synthesis Of Carbonyl Compounds And Ring-Opening Of Aziridines". Thesis, 2011. http://hdl.handle.net/2005/2061.
Texto completoLibros sobre el tema "Ring opening of azirine and aziridines"
Almas, Jasmine. Rhodium-catalyzed ring opening of vinyl epoxides and vinyl aziridines with aniline nucleophiles. 2002, 2002.
Buscar texto completoCapítulos de libros sobre el tema "Ring opening of azirine and aziridines"
Nielsen, Lars P. C. y Eric N. Jacobsen. "Catalytic Asymmetric Epoxide Ring-opening Chemistry". En Aziridines and Epoxides in Organic Synthesis, 229–69. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607862.ch7.
Texto completoWolf, Thomas y Frederik R. Wurm. "Chapter 10. Organocatalytic Ring-opening Polymerization Towards Poly(cyclopropane)s, Poly(lactame)s, Poly(aziridine)s, Poly(siloxane)s, Poly(carbosiloxane)s, Poly(phosphate)s, Poly(phosphonate)s, Poly(thiolactone)s, Poly(thionolactone)s and Poly(thiirane)s". En Polymer Chemistry Series, 406–72. Cambridge: Royal Society of Chemistry, 2018. http://dx.doi.org/10.1039/9781788015738-00406.
Texto completoAraki, S. y T. Hirashita. "Aziridine Ring Opening". En Science of Synthesis Knowledge Updates KU 2010/4, 1. Georg Thieme Verlag KG, 2010. http://dx.doi.org/10.1055/sos-sd-107-00204.
Texto completoOgawa, C. y S. Kobayashi. "Aziridine Ring Opening with Oxygen Nucleophiles". En Water in Organic Synthesis, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-206-00447.
Texto completoOgawa, C. y S. Kobayashi. "Aziridine Ring Opening with Nitrogen Nucleophiles". En Water in Organic Synthesis, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-206-00450.
Texto completoOgawa, C. y S. Kobayashi. "Aziridine Ring Opening with Sulfur Nucleophiles". En Water in Organic Synthesis, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-206-00453.
Texto completoOgawa, C. y S. Kobayashi. "Noncatalyzed Aziridine Ring Opening with Oxygen Nucleophiles". En Water in Organic Synthesis, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-206-00448.
Texto completoOgawa, C. y S. Kobayashi. "Noncatalyzed Aziridine Ring Opening with Nitrogen Nucleophiles". En Water in Organic Synthesis, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-206-00451.
Texto completoHof, K., K. M. Lippert y P. R. Schreiner. "Ring Opening of Aziridines". En Brønsted Base and Acid Catalysts, and Additional Topics, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-205-00273.
Texto completoInokuma, T. y Y. Takemoto. "Ring Opening of Aziridines". En Brønsted Base and Acid Catalysts, and Additional Topics, 1. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-205-00362.
Texto completoActas de conferencias sobre el tema "Ring opening of azirine and aziridines"
Braga, Antonio Luiz, Syed M. Salman, Sayyar Muhamamd, Oscar E. D. Rodrigues, Luciano Dornelles y Ricardo S. Schwab. "Copper Oxide Nanoparticles-Catalyzed Aziridine Ring Opening with Diaryl Diselenides Under Ionic Liquid as Reaction Medium". En 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0026-1.
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