Littérature scientifique sur le sujet « Isochromans »
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Articles de revues sur le sujet "Isochromans"
Hamada, Shohei, Kyoko Yano, Ayano Ohshimo, Elghareeb E. Elboray, Yusuke Kobayashi et Takumi Furuta. « Oxidative C–N Bond Formation of Isochromans Using an Electronically Tuned Nitroxyl Radical as Catalyst ». SynOpen 08, no 02 (mai 2024) : 125–29. http://dx.doi.org/10.1055/s-0040-1720118.
Texte intégralLiu, Shiyao, Kazunari Nakajima et Yoshiaki Nishibayashi. « Copper-catalysed enantioselective intramolecular etherification of propargylic esters : synthetic approach to chiral isochromans ». RSC Advances 9, no 33 (2019) : 18918–22. http://dx.doi.org/10.1039/c9ra03880a.
Texte intégralTrefiletti, Giuliana, Anna Rita Togna, Valentina Latina, Carolina Marra, Marcella Guiso et Giuseppina I. Togna. « 1-Phenyl-6,7-dihydroxy-isochroman suppresses lipopolysaccharide-induced pro-inflammatory mediator production in human monocytes ». British Journal of Nutrition 106, no 1 (27 janvier 2011) : 33–36. http://dx.doi.org/10.1017/s0007114510005763.
Texte intégralUNTERHALT, B., et R. JOESTINGMEIER. « ChemInform Abstract : New Substituted Isochromans. » ChemInform 28, no 1 (4 août 2010) : no. http://dx.doi.org/10.1002/chin.199701169.
Texte intégralVerma, Ashish Kumar, Ande Chennaiah, Sateesh Dubbu et Yashwant D. Vankar. « Stereoselective synthesis of sugar-fused (or 1,2-annulated) isochromans and isochromanones by using oxa-Pictet–Spengler reaction ». Organic & ; Biomolecular Chemistry 16, no 37 (2018) : 8258–62. http://dx.doi.org/10.1039/c8ob01698d.
Texte intégralThatikonda, Thanusha, Siddharth K. Deepake, Pawan Kumar et Utpal Das. « α-Angelica lactone catalyzed oxidation of benzylic sp3 C–H bonds of isochromans and phthalans ». Organic & ; Biomolecular Chemistry 18, no 21 (2020) : 4046–50. http://dx.doi.org/10.1039/d0ob00729c.
Texte intégralNickerson, Leslie A., Benjamin D. Bergstrom, Mingchun Gao, Yuan-Shin Shiue, Croix J. Laconsay, Matthew R. Culberson, Walker A. Knauss, James C. Fettinger, Dean J. Tantillo et Jared T. Shaw. « Correction : Enantioselective synthesis of isochromans and tetrahydroisoquinolines by C–H insertion of donor/donor carbenes ». Chemical Science 11, no 19 (2020) : 5113. http://dx.doi.org/10.1039/d0sc90081h.
Texte intégralUnterhalt, B., et U. Heppert. « ChemInform Abstract : Isochromans Related to Fluoxetin. » ChemInform 32, no 38 (24 mai 2010) : no. http://dx.doi.org/10.1002/chin.200138108.
Texte intégralZhu, Zhengbo, Alafate Adili, Chenfei Zhao et Daniel Seidel. « Catalytic Enantioselective Approaches to the oxa-Pictet–Spengler Cyclization and Other 3,6-Dihydropyran-Forming Reactions ». SynOpen 03, no 03 (juillet 2019) : 77–90. http://dx.doi.org/10.1055/s-0039-1690686.
Texte intégralYang, Guoping, Ke Li, Kai Zeng, Yijin Li, Tao Yu et Yufeng Liu. « Heteropolyacid ionic liquid heterogeneously catalyzed synthesis of isochromans via oxa-Pictet–Spengler cyclization in dimethyl carbonate ». RSC Advances 11, no 18 (2021) : 10610–14. http://dx.doi.org/10.1039/d1ra01004b.
Texte intégralThèses sur le sujet "Isochromans"
Joll, Cynthia Ann. « The asymmetric synthesis of isochromans related to the aphid pigments ». Thesis, Joll, Cynthia Ann (1995) The asymmetric synthesis of isochromans related to the aphid pigments. PhD thesis, Murdoch University, 1995. https://researchrepository.murdoch.edu.au/id/eprint/51655/.
Texte intégralMuller, Cyprien. « Supramolecular catalysis and vibrational strong coupling : how to influence chemical reactivity ? » Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAF014.
Texte intégralHow can we influence chemical reactivity? Throughout this thesis, I attempted to answer this question by exploring the frontier between chemistry and physics.First, I took advantage of solvent 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) which often unlocks exotic reactivity that can be explained by its extraordinary physical properties. These properties make of HFIP a veritable supramolecular matrix, which allowed the development of a new method for the synthesis of densely functionalized isochromans. This method displayed unprecedented generality, simplicity, and practicality on the way to this pharmacologically important motif.Second, I investigated how light-matter hybridization, accessed through Vibrational Strong Coupling (VSC) could alter the kinetics of some chemical reactions. In practice, by placing different reactants between two mirrors, I studied the impact of VSC on nucleophilicity, as well as on Diels-Alder reactivity
Fronert, Jeanne Katrin [Verfasser]. « Organokatalytische asymmetrische Synthesen von Dihydrobenzofuranen und Isochroman-1-onen / Jeanne Katrin Fronert ». Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2015. http://d-nb.info/1080490825/34.
Texte intégralHabert, Loïc. « Synthèse et étude de la réactivité d'ynamides. Application pour la synthèse de composés azotés d'intérêts biologiques ». Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2065.
Texte intégralThe constant demand for original small molecule collections with promesing therapeutic potential have required the development of new and efficient synthetic methods. Given the nitrogen ubiquity in nature and in life sciences, the aim of this work is the development of original heterocyclic building blocks, originated from the functionalization of ynamide frameworks. Our goal was to study the reactivity of ynamides in order to synthesize from a common skeleton small library of nitrogen or oxygen compounds with biological relevance. The implementation of a new innovative methodology has been necessary, while trying to adhere to the following principles: atom economy, catalytic reaction, fast synthesis in minimal steps, and control of chemo- and regioselectivity.Firstly, we studied the carbozincation reaction of ynamides allowing access to several substituted enamides. Subsequently, cycloisomerization reaction of yne-carbamates has allowed us the development of two novels methodologies using zinc (II) or rhodium (II) salts, which provide access to oxazolone scaffolds. Our research has been studying the keteniminium ion intermediates accessible via an acid activation of ynamide. The development of two methods for the 3-amino-isocoumarin core was achieved via addition of Lewis or Brønsted acid or via electrophilic cyclization. Finally, a tandem coupling / cycloisomerization / nucleophilic addition reaction was carried out in order to prepare 1H-isochromene
Lewis, Shane E. « Development of a Three Step Cascade Synthesis of 2,4-Dihydro-1H-benzo[f]isochromenes ». W&M ScholarWorks, 2015. https://scholarworks.wm.edu/etd/1539626965.
Texte intégralCoelho, Paulo. « Etude de la diastereoselectivite des reactions intramoleculaires de composes presentant un atome de silicium chiral. Synthese de derives de 4-silatetrahydro-isochroman-1-ones, de 4-sila-2h-isoquinolein-1-ones et de silacycloalcanes ». Paris 11, 1995. http://www.theses.fr/1995PA112069.
Texte intégralMariaule, Gaëlle. « Accès original aux hétérocycles par la catalyse organométallique : développement de nouveaux inhibiteurs de kinases ». Thesis, Paris 5, 2014. http://www.theses.fr/2014PA05P612/document.
Texte intégralMy thesis proJect is organized around two main topics having in common organometallic chemistry and the synthesis of heterocycles.Firstly, we were interested in a methodology for the synthesis of tetrahydrocyclopenta[c]acridines. These compounds are synthesized in three steps from various quinolines. The key step is a cobalt-Catalyzed intramolecular Pauson-Khand reaction. Some compounds of this family exhibit selective Cyclin Dependent Kinases (CDKs) inhibition, particulary against CDK2, in the submicromolar range. A hit compound has been identified, and then using data from co-Crystallization with CDK2 and molecular modeling, followed by the study of structure-Activity relationships, the rational design of a second generation of molecules has been investigated. The most advanced compound has an IC50 of 300 nM against CDK2/cyclin A with an excellent metabolic profile. In the second axis of research, we have studied and developed a new silver-Catalyzed tandem addition/cyclization reaction with carbon nucleophiles. The systems studied are (hetero)aromatics compounds having an aldehyde group and in ortho-Position an alkynyl group. The synthetic strategy leads to 1H-Isochromene derivatives by creating two new bonds. A thorough study of the tandem reaction allowed us to obtain a wide range of isochromene derivatives, highlighting the influence of different substituents carried by the alkyne group or on the (hetero)aromatic substrates; and also to investigate the use of different carbon nucleophiles (alkynes, aromatics and heteroaromatics). The limitations of the tandem reaction have also been identified
Gorgoi, Mihaela. « Electronic Properties of Phthalocyanines Deposited on H-Si(111) ». Doctoral thesis, Universitätsbibliothek Chemnitz, 2007. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200700213.
Texte intégralIn the context of this work four Phthalocyanine were studied: Metal-free Phthalocyanine (H2Pc), Copper Phthalocyanine (CuPc) and fluorine-substituted Phthalocyanine (F4CuPc and F16CuPc). The goal of this work is the electronic and chemical characteristics of the interfaces. The molecules were deposited by organic molecular beam deposition (OMBD) in the ultra high vacuum on hydrogen-passivated Si(111)-Substrate. Surface sensitive techniques such as photoemission spectroscopy (PES), bremsstrahlung isochromate spectroscopy (BIS or IPES - inverse photoemission spectroscopy) and near edge X-ray absorption fine structure spectroscopy (NEXAFS) were used for characterisation. Theoretical computations by density functional theory methods were employed, in order to assign different components in PES and IPES. The energy level alignment at the organic/H-Si interface, as well as the transport gap of H2Pc, CuPc, F4CuPc and F16CuPc were determined by PES and IPES. The NEXAFS measurements determine the exact molecular orientation with respect to the substrate. The evaluation of the data showed different molecular orientation in the thin and thick films. This change was correlated with the band bending like behaviours that emerged at these interfaces. In addition to the band bending like behaviour, the interfaces show also an interface dipole which is driven by the work function difference between the contact materials. The influence of the degree of fluorination is confirmed in the similar increase of the EA, WF and IE. The electronic properties of metal/organic layer interfaces and of organic layer under oxygen influence were examined by PES and IPES. The Ag/Pc interfaces show a mixture of HOMO-LUMO shifts and interface dipole formation. A charge transfer complex is formed in the case of Ag/H2Pc and Ag/F16CuPc interfaces. Ag is physisorbed atop the CuPc. Charge transfers from F4CuPc to Ag creating a continuous n-type doping at the interface. Similar to the Pc/H-Si interfaces the interface dipoles found here show a linear dependence on the EA, WF and IE and can be predicted by the difference in the work functions. The data evaluation of oxygen exposed thick films determined two groups of behaviours. The weak interaction group is represented by H2Pc and F4CuPc, Pcs on which oxygen is physisorbed. The strong interaction group contains the other two molecules CuPc and F16CuPc. CuPc forms a charge transfer complex with oxygen and on top of F16CuPc a polarized layer is formed
Gina, Ervin. « Implementation and Optimization of an Inverse Photoemission Spectroscopy Setup ». Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4050.
Texte intégralSenanayake, Badra Sriyani. « Approaches to natural isochromans by isomerisation of aryldioxolanes ». Phd thesis, 1992. http://hdl.handle.net/1885/138963.
Texte intégralChapitres de livres sur le sujet "Isochromans"
Lavine, Barry K., et Collin White. « Odor-Structure Relationship Studies of Indan, Tetralin, and Isochroman Musks ». Dans ACS Symposium Series, 333–59. Washington, DC : American Chemical Society, 2015. http://dx.doi.org/10.1021/bk-2015-1191.ch023.
Texte intégralFuggle, John C. « Bremsstrahlung isochromat spectroscopy (BIS or High-Energy Inverse Photoemission) ». Dans Topics in Applied Physics, 307–37. Berlin, Heidelberg : Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/3540541624_20.
Texte intégralFauszt, I., A. Fehér, Gy Horváth, A. Juhász, E. Széll et S. Bajusz. « Facile synthesis of 1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid, a constrained phenylglycine and its oxa analog, isochromane-1-carboxylic acid ». Dans Peptides 1994, 678–79. Dordrecht : Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-1468-4_311.
Texte intégralFortuné, Danielle, et Bruno Deshoullières. « Modelling of Sliding Wave Phenomenon, on the Contact Boundary between Two Bodies, by the Boundary Integral Element Method : Numerical Visualization of Isochroms ». Dans Contact Mechanics, 267–70. Boston, MA : Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1983-6_36.
Texte intégral« Olive Oil Hydroxy-Isochromans ». Dans Olive Oil, 207–14. CRC Press, 2008. http://dx.doi.org/10.1201/9781420059946-13.
Texte intégralGuiso, Marcella, Giuliana Trefiletti et Giuseppina Togna. « Olive Oil Hydroxy-Isochromans ». Dans Olive Oil, 193–200. CRC Press, 2008. http://dx.doi.org/10.1201/9781420059946.ch9.
Texte intégralNógrádi, M. « By Oxidative Fragmentation of 1-2-Benzopyrans (Isochromans) ». Dans Six-Membered Hetarenes with One Chalcogen, 1. Georg Thieme Verlag KG, 2003. http://dx.doi.org/10.1055/sos-sd-014-00146.
Texte intégralFreeman, R. « Spin choreography ». Dans Pulsed Magnetic Resonance : NMR, ESR, and Optics, 219–41. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198539629.003.0010.
Texte intégralRiviere, J. C. « Electron excitation : inverse photoemission spectroscopy (IPES) ». Dans Surface Analytical Techniques, 193–209. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198513704.003.0007.
Texte intégralHillebrecht, F. U., et M. Campagna. « Chapter 70 Bremsstrahlung isochromat spectroscopy of alloys and mixed valent compounds ». Dans High Energy Spectroscopy, 425–51. Elsevier, 1987. http://dx.doi.org/10.1016/s0168-1273(87)10012-8.
Texte intégralActes de conférences sur le sujet "Isochromans"
« SEMI-EXPERIMENTAL INVESTIGATION OF COMPOUND 1H,3HBENZO[DE]ISOCHROMENE-1,3-DIONE ». Dans 2nd International Conference on Contemporary Academic Research ICCAR 2023. All Sciences Academy, 2023. http://dx.doi.org/10.59287/as-proceedings.191.
Texte intégralC.T., Samlan, Dinesh N. Naik et Nirmal K. Viswanathan. « Separating Isogyres and Isochromates of a Uniaxial Crystal using Fourier Fringe Analysis ». Dans International Conference on Fibre Optics and Photonics. Washington, D.C. : OSA, 2016. http://dx.doi.org/10.1364/photonics.2016.th3a.4.
Texte intégralJackson, Warren B. « Electronic Structure of Crystalline and Amorphous Semiconductors and Heterojunctions Using Bremsstrohlung Isochromat Spectroscopy ». Dans 1986 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1986. http://dx.doi.org/10.7567/ssdm.1986.d-11-1.
Texte intégralRapports d'organisations sur le sujet "Isochromans"
Tobin, J., M. Butterfield, N. Teslich, A. Bliss, B. Chung, J. Gross, A. McMahan et A. Schwartz. Nano-focused Bremstrahlung Isochromat Spectroscopy (nBIS) Determination of the Unoccupied Electronic Structure of Pu. Office of Scientific and Technical Information (OSTI), décembre 2006. http://dx.doi.org/10.2172/898443.
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