Academic literature on the topic 'Macrocyclic cyclophanes'

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Journal articles on the topic "Macrocyclic cyclophanes"

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Collins, Shawn K., and Yassir El-Azizi. "Development of quadrupolar engaging auxiliaries as novel gearing elements for macrocyclization." Pure and Applied Chemistry 78, no. 4 (2006): 783–89. http://dx.doi.org/10.1351/pac200678040783.

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The formation of various macrocyclic cyclophanes via ring-closing olefin metathesis is possible through the use of a pendant pentafluorobenzyl ester group. A quadrupolar interaction between the cyclophane core and the auxiliary is proposed to act as a gearing element facilitating cyclization. The development of these noncovalent interactions as gearing elements as well as the investigation of the effect of the site of metathesis upon the macrocyclization process is described.
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Salazar-Medina, Alex J., Enrique F. Velazquez-Contreras, Rocio Sugich-Miranda, et al. "Immune response of human cultured cells towards macrocyclic Fe2PO and Fe2PC bioactive cyclophane complexes." PeerJ 8 (April 20, 2020): e8956. http://dx.doi.org/10.7717/peerj.8956.

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Synthetic molecules that mimic the function of natural enzymes or molecules have untapped potential for use in the next generation of drugs. Cyclic compounds that contain aromatic rings are macrocyclic cyclophanes, and when they coordinate iron ions are of particular interest due to their antioxidant and biomimetic properties. However, little is known about the molecular responses at the cellular level. This study aims to evaluate the changes in immune gene expression in human cells exposed to the cyclophanes Fe2PO and Fe2PC. Confluent human embryonic kidney cells were exposed to either the cy
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Monchaud, David, Anton Granzhan, Nicolas Saettel, Aurore Guédin, Jean-Louis Mergny, and Marie-Paule Teulade-Fichou. "“One Ring to Bind Them All”—Part I: The Efficiency of the Macrocyclic Scaffold for G-Quadruplex DNA Recognition." Journal of Nucleic Acids 2010 (2010): 1–19. http://dx.doi.org/10.4061/2010/525862.

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Macrocyclic scaffolds are particularly attractive for designing selective G-quadruplex ligands essentially because, on one hand, they show a poor affinity for the “standard” B-DNA conformation and, on the other hand, they fit nicely with the external G-quartets of quadruplexes. Stimulated by the pioneering studies on the cationic porphyrin TMPyP4 and the natural product telomestatin, follow-up studies have developed, rapidly leading to a large diversity of macrocyclic structures with remarkable-quadruplex binding properties and biological activities. In this review we summarize the current sta
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Seliger, Piotr, Danuta Tomczyk, Grzegorz Andrijewski, and Ewa Tomal. "The Determination of Protonation Constants of Peptidomimetic Cyclophanes in Binary Methanol-Water Mixtures." Journal of Analytical Methods in Chemistry 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/1721069.

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The protonation constants of new group of peptidomimetic cyclophanes with valine or phenylalanine moieties incorporated into the macrocyclic skeleton as well as their linear analogues were determined by potentiometric measurements in solutions of methanol-water mixtures at 25°C and constant ionic strength. The influence of cavity size, location of protonation sites, and attached substituents of the macrocyclic ligands on the protonation constants were discussed on the basis of potentiometric measurement as well as H1-NMR results.
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Liu, Zhichang, Siva Krishna Mohan Nalluri, and J. Fraser Stoddart. "Surveying macrocyclic chemistry: from flexible crown ethers to rigid cyclophanes." Chemical Society Reviews 46, no. 9 (2017): 2459–78. http://dx.doi.org/10.1039/c7cs00185a.

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Heerklotz, Joerg A., Changchun Fu, Anthony Linden, and Manfred Hesse. "ChemInform Abstract: Photochemical Ring Enlargement of Macrocyclic N-Phenyl Imides into Cyclophanes." ChemInform 31, no. 47 (2000): no. http://dx.doi.org/10.1002/chin.200047157.

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Esteve, Ferran, Belen Altava, Michael Bolte, M. Isabel Burguete, Eduardo García-Verdugo, and Santiago V. Luis. "Highly Selective Anion Template Effect in the Synthesis of Constrained Pseudopeptidic Macrocyclic Cyclophanes." Journal of Organic Chemistry 85, no. 2 (2019): 1138–45. http://dx.doi.org/10.1021/acs.joc.9b03048.

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Murakami, Yukito, Osamu Hayashida, and Yasuyuki Nagai. "Hybrid molecular assemblies in combinations of a synthetic peptide lipid with macrocyclic cyclophanes." Recueil des Travaux Chimiques des Pays-Bas 113, no. 4 (2010): 209–15. http://dx.doi.org/10.1002/recl.19941130408.

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Bedi, Anjan, Linda J. W. Shimon, Benny Bogoslavsky, and Ori Gidron. "Easier to Twist than Bend: The Scope of the Bridge Formation Approach to Naphthalenophane Synthesis." Organic Materials 02, no. 04 (2020): 323–29. http://dx.doi.org/10.1055/s-0040-1721102.

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Twisting anthracene and higher acenes can alter their optical, magnetic, and electronic properties. To test the effect of twisting on the lower homologue, naphthalene, we synthesized tethered naphthalenophanes bearing alkyl bridges. Both X-ray structure and DFT calculations show that hexyl and butyl bridges induce a 6° and 12° end-to-end twist on the naphthalene unit, respectively. Attempts to increase the twisting further using shorter tethers resulted in an elimination product. Enantiomerically pure naphthalenophanes display strong chiroptical properties, which intensify with increasing twis
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Miyake, Yoshihiro, Mo Wu, M. Jalilur Rahman, Yoshiyuki Kuwatani, and Masahiko Iyoda. "Efficient Construction of Biaryls and Macrocyclic Cyclophanes via Electron-Transfer Oxidation of Lipshutz Cuprates." Journal of Organic Chemistry 71, no. 16 (2006): 6110–17. http://dx.doi.org/10.1021/jo0608063.

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Dissertations / Theses on the topic "Macrocyclic cyclophanes"

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Thibault, Michelle Elizabeth, and University of Lethbridge Faculty of Arts and Science. "Novel bis(isobenzofuran)s and their utility in the synthesis of cyclophanes." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2003, 2003. http://hdl.handle.net/10133/239.

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The synthesis of 1,2-bis(5-isobenzofuranyl)ethene by two routes is described. The first route involved generation of 1,2-bis(5-isobenzofuranyl)ethene from a bis(acetal) precursor under basic conditions. However, the synthesis was lengthy with low-yielding steps, which led to it being abandoned. The second route involved generation of 1,2-bis(5-isobenzofuranyl)ethene from a bis(oxabicyclic) precursor with 3,6-di(2'-pyridyl)-s-tetrazine. Napththo[1,2-c:5,6-c] difuran and 1,2-bis(5isobenzofuranyl)ethene were used to construct novel cyclophanes by double Diels-Alder reactions with bis(maleimide)s.
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Dikmans, Antonius Josephus. "Synthesis of belt-shaped macrocyclic cyclophanes, Part I, synthesis of key intermediates in the proposed synthesis of (7)- and (8)cyclacenes, Part II, synthesis of key intermediates in a proposed synthesis of a cyclic decaphenylene." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ31119.pdf.

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Spenst, Peter [Verfasser], and Frank [Gutachter] Würthner. "Xylylene Bridged Perylene Bisimide Cyclophanes and Macrocycles / Peter Spenst ; Gutachter: Frank Würthner." Würzburg : Universität Würzburg, 2016. http://d-nb.info/1141054272/34.

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Florian, Maria Carmen. "Design, synthèse et analyse structurale de nouvelles molécules hôtes : Macrocycles et cyclophanes." Rouen, 2006. http://www.theses.fr/2006ROUES034.

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Dans la première partie, nous avons réalisé la synthèse de nouveaux composés dispiro-1. 3- dioxaniques sous forme d’isomères syn et anti. La synthèse de nouveaux macrocycles à motif 1. 3-dioxanique a été réalisée par la technique de la haute dilution et par effet template. La conception de ces macrocycles a été basée sur la connaissance de la stéréochimie des précurseurs et sur la pré-organisation de ces derniers, favorable à la formation des macrocycles. Dans la deuxième partie, nous avons réalisé la synthèse et l’analyse structurale de nouveaux dérivés dioxaniques du 1. 3. 5- triacétylbenzèn
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Cristau, Pierre. "Synthèses totales des mauritines A, B, C et F ; synthèse de macrocycles orientée pour la diversité structurale : conception et synthèse d'un cyclophane support d'un coude β". Paris 11, 2003. http://www.theses.fr/2003PA112184.

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Dans la première partie de ce manuscrit, nous avons decrit la première synthèse totale des mauritines a, b, c et f, alcaloi͏̈des cyclopeptidiques à 14 chaînons biologiquement actifs. La stratégie de synthèse que nous avons développé est basée sur une cycloétherification par réaction de s(n)ar intramoléculaire et met en jeu un tripeptide linéaire intact, ce qui rend la stratégie très convergente. Le rendement global de ces synthèses totales est de 6. 7-10. 2 pour cent pour 13-14 étapes. Une étude complète par spectroscopie rmn a été réalisée sur les mauritines a, b, c et f, permettant notamment
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Renko, Zafiarisoa Dolor. "Synthèse totale de porphyrines protégées sur leurs deux faces (Porphyrines "Gyroscopes")." Paris 6, 1986. http://www.theses.fr/1986PA066274.

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La synthèse d'une nouvelle génération de porphyrines protégées sur leurs deux faces a été réalisée. Il s'agit d'un dérivé d'une octamethylporphyrine substituée en ses positions méso alpha et gamma par deux groupes phényles eux-mêmes fonctionnalises en position ortho et ortho par des anses peptidiques d'acides aminés optiquement actifs. L'une des anses comporte une pyridine. La synthèse totale de cette porphyrine a été effectuée en vue d'obtenir de nouveaux modèles d'hémoprotéines et de nouveaux catalyseurs d'époxydation asymétrique.
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Zahidi, Assou. "Etudes structurales et dynamiques de complexes macrocycliques par rmn heteronucleaire." Université Louis Pasteur (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR13171.

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Etude de la complexation de cations et d'anions par des ligands synthetiques a l'aide de la rmn heteronucleaire (**(6)li, **(7)li, **(13)c, **(14)n, **(15)n, **(19)f, **(31)p, **(35)cl et **(109)ag) et de mesures d'effet overhauser homo- et heteronuclaires
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Binay, Patrice. "Nouveaux modèles du NADH : réactivité et énantiosélectivité." Rouen, 1986. http://www.theses.fr/1986ROUES001.

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Dans une première partie, synthèse d'alkyl-4 dihydro-1,4 benzyl-1 et -phényl-1p éthyl-1 (diméthyl-4,4 oxazoline-2yl-2)-3 pyridines et étude de leur activité réductrice vis-a-vis de p-nitrobenzaldéhyde et de benzenéglyoxylate de méthyle en présence de mg**(2+) ; dans la seconde partie, étude de modèles plus énantiosélectifs : méthyl-1 dihydro-1,4 n-(hydroxyméthyl-1 propyl) nicotinamide (=méthyl-1 a), o-, m- et p- xylylene-1, 1' bis-a, dihydro-1,4 methyl-1 nicotinate de (dihydro-1,4 methyl-1 nicotinoylamino)-2 butyle et le cyclophane correspondant à ce dernier composé (pont xylylene entre les az
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"Synthesis of [beta]-ketomacrolides via 1-oxa[n]meta-cyclophanes and a new route to (+-)-patulolide C." Chinese University of Hong Kong, 1994. http://library.cuhk.edu.hk/record=b5895379.

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by Fong Sun.<br>On t.p., "+" appears over "-".<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1994.<br>Includes bibliographical references (leaves 41-43).<br>Acknowledgements --- p.i<br>Contents --- p.ii<br>Abstract --- p.iii<br>Abbreviations --- p.iv<br>Chapter I --- Introduction<br>Chapter I-1 --- General background --- p.1<br>Chapter I-2 --- Literature survey --- p.3<br>Chapter I-2-1 --- Ley's approach to β-ketomacrolides --- p.3<br>Chapter I-2-2 --- Weiler's approach to β-ketomacrolides --- p.4<br>Chapter I-2-3 --- Macrocyclic β-ketomacrolides formation through sulfide contr
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Raymond, Michaël. "Synthèse de macrocycles par réaction de métathèse et application en débit continu." Thèse, 2016. http://hdl.handle.net/1866/18438.

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La réaction de macrocyclisation par métathèse est une réaction clé en synthèse organique et qui comporte de nombreux défis. Les méthodes traditionnelles de macrocyclisation impliquent par exemple la haute dilution du mélange réactionnel et l’emploie d’une pompe seringue. Dans cette thèse de doctorat, une méthode qui évite l’emploi des techniques de haute dilution a été développée. Cette méthode a été appliquée à la synthèse de cyclophanes macrocycliques. De plus, la synthèse totale de la néomarchantine A, un macrocycle bisbibenzylique, a été réalisée en 12 étapes à partir de produits commercia
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Books on the topic "Macrocyclic cyclophanes"

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Weber, E. Topics in Current Chemistry: Macrocycles (Topics in Current Chemistry). Springer-Verlag Berlin and Heidelberg GmbH & Co. KG, 1991.

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Book chapters on the topic "Macrocyclic cyclophanes"

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Campbell, Katie, and Rik R. Tykwinski. "Chiral Carbon-rich Macrocycles and Cyclophanes." In Carbon-Rich Compounds. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607994.ch6.

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Li, Hao, Tianyu Jiao, and Libo Shen. "Host-Guest Chemistry of a Tetracationic Cyclophane, Namely, Cyclobis (paraquat-p-phenylene)." In Handbook of Macrocyclic Supramolecular Assembly. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-1744-6_4-1.

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Li, Hao, Tianyu Jiao, and Libo Shen. "Host-Guest Chemistry of a Tetracationic Cyclophane, Namely, Cyclobis (paraquat-p-phenylene)." In Handbook of Macrocyclic Supramolecular Assembly. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2686-2_4.

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"Cyclophanes." In Macrocycles. John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9780470980200.ch2.

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