Academic literature on the topic 'Isochromanes'
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Journal articles on the topic "Isochromanes"
Dyachenko, V. I., and V. V. Semenov. "A new approach to isochromanes." Russian Chemical Bulletin 59, no. 4 (April 2010): 870–71. http://dx.doi.org/10.1007/s11172-010-0178-0.
Full textSaikia, Anil K., Sabera Sultana, Ngangbam Renubala Devi, Manash J. Deka, Kartikeya Tiwari, and Vikash K. Dubey. "Diastereoselective synthesis of substituted hexahydrobenzo[de]isochromanes and evaluation of their antileishmanial activity." Organic & Biomolecular Chemistry 14, no. 3 (2016): 970–79. http://dx.doi.org/10.1039/c5ob02038g.
Full textDyachenko, V. I., and V. V. Semenov. "ChemInform Abstract: A New Approach to Isochromanes." ChemInform 42, no. 11 (February 17, 2011): no. http://dx.doi.org/10.1002/chin.201111160.
Full textKuramochi, Kouji, Kazunori Tsubaki, Isoko Kuriyama, Yoshiyuki Mizushina, Hiromi Yoshida, Toshifumi Takeuchi, Shinji Kamisuki, Fumio Sugawara, and Susumu Kobayashi. "Synthesis, Structure, and Cytotoxicity Studies of Some Fungal Isochromanes." Journal of Natural Products 76, no. 9 (September 13, 2013): 1737–45. http://dx.doi.org/10.1021/np400460m.
Full textPihlaja, K., J. Mattinen, E. Kleinpeter, R. Meusinger, Ch Duscheck, and R. Borsdorf. "A1H and13C NMR conformational study of methyl-substituted isochromanes." Magnetic Resonance in Chemistry 23, no. 9 (September 1985): 754–58. http://dx.doi.org/10.1002/mrc.1260230915.
Full textLi, Xiao-Hua, Xue-Hua Han, Ling-Ling Qin, Jun-Lin He, Zhi-Xing Cao, Yu-Cheng Gu, Da-Le Guo, and Yun Deng. "Isochromanes from Aspergillus fumigatus, an endophytic fungus from Cordyceps sinensis." Natural Product Research 33, no. 13 (May 24, 2018): 1870–75. http://dx.doi.org/10.1080/14786419.2018.1478824.
Full textYue, Guizhou, Sicheng Li, Dan Jiang, Gang Ding, Juhua Feng, Huabao Chen, Chunping Yang, et al. "Syntheses of 3,3-Disubstituted Dihydrobenzofurans, Indolines, Indolinones and Isochromanes by Palladium-Catalyzed Tandem Reaction Using Pd(PPh3)2Cl2/(±)-BINAP as a Catalytic System." Catalysts 10, no. 9 (September 18, 2020): 1084. http://dx.doi.org/10.3390/catal10091084.
Full textHashmi, A. Stephen K, M. Wölfle, Filiz Ata, Melissa Hamzic, Ralph Salathé, and Wolfgang Frey. "Gold Catalysis: Dihydroisobenzofurans and Isochromanes by the Intramolecular Furan/Alkyne Reaction." Advanced Synthesis & Catalysis 348, no. 16-17 (November 2006): 2501–8. http://dx.doi.org/10.1002/adsc.200600367.
Full textGuyard, Anne-Laure, Alain Valleix, Bernard Rousseau, and Jean-Christophe Cintrat. "Synthesis and deuterium labeling of some 4-phenyl, 3-substituted isochromanes." Journal of Labelled Compounds and Radiopharmaceuticals 44, no. 7 (2001): 529–39. http://dx.doi.org/10.1002/jlcr.484.
Full textSalomone, Antonio, Filippo Maria Perna, Francesca Claudia Sassone, Aurelia Falcicchio, Jure Bezenšek, Jurij Svete, Branko Stanovnik, Saverio Florio, and Vito Capriati. "Preparation of Polysubstituted Isochromanes by Addition of ortho-Lithiated Aryloxiranes to Enaminones." Journal of Organic Chemistry 78, no. 21 (October 24, 2013): 11059–65. http://dx.doi.org/10.1021/jo401689e.
Full textDissertations / Theses on the topic "Isochromanes"
Muller, Cyprien. "Supramolecular catalysis and vibrational strong coupling : how to influence chemical reactivity ?" Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAF014.
Full textHow 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
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/.
Full textMajeed, Amera Jihad. "Electrochemical oxidation of isochromanones, isoquinolines and related structures." Thesis, University of Bath, 1986. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332114.
Full textVetica, Fabrizio [Verfasser]. "Organocatalytic Asymmetric Synthesis of Isochromanones, Tetranortriterpenoids and Pyrazolone Derivatives / Fabrizio Vetica." München : Verlag Dr. Hut, 2018. http://d-nb.info/1155056213/34.
Full textFronert, 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.
Full textCoelho, 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.
Full textGovender, Sameshnee. "Methodology for the Enantioselective Synthesis of Isochromanes and their Dimers." Thesis, 2006. http://hdl.handle.net/10539/1713.
Full textPyranonaphthoquinones are biologically important molecules found in a wide variety of bacteria, microbial fungi and plant species. Their biological activity is proposed to be a consequence of their ability to function as bioreductive alkylating agents. This class of compounds, which include monomeric and dimeric examples, contain the basic naphtho[2,3-c]pyran-5,10-dione skeleton, usually with substituents at the C-1 and C-3 positions of the pyran ring. The aim of the first part of the project was to develop a novel method for the synthesis of enantiomerically pure 5,8-dimethoxy-isochroman-4-ol, which will provide a handle for stereoselectively adding substituents to the C-1 and C-3 positions of the pyran nucleus. In the second part of the project we wished to attempt to synthesize the naturally occurring compound, cardinalin 3, the dimer of ventiloquinone L previously synthesized in the Wits laboratories. The synthesis of the enantiomerically pure isochromanol began with 2,5-dihydroxybenzoic acid, which was subjected to a diallylation followed by a Claisen rearrangement. The phenols were protected by a methylation reaction and the ester moiety was reduced to give (2-allyl-3,6- dimethoxyphenyl)methanol. It was then allylated to produce a suitable precursor for a one pot/two step ruthenium mediated isomerisation/ring closing metathesis reaction to produce 5,8-dimethoxy-1H-isochromene in an overall yield of 47%. It was converted to racemic 5,8-dimethoxy-isochroman-4-ol through a hydroboration-oxidation reaction in a yield of 84%. The separation of the enantiomers was achieved by acetylating the alcohol to form 5,8-dimethoxy-3,4-dihydro-1H-isochromen-4-yl acetate and then a lipase enzyme was used to stereospecifically deacetylate one enantiomer, while leaving the other enantiomer untouched. The second part of the dissertation discusses the progress towards the synthesis of cardinalin 3. This project began with the formation of the C-C biaryl axis starting from 1,3-dimethoxybenzene. The synthesis then continued with the diformylation of the biphenyl to give 2,2’,6,6’-tetramethoxy[1,1′-biphenyl]-3,3′-dicarbaldehyde. This was subjected to a Stobbe condensation and a Friedel-Crafts acylative cyclisation to produce diethyl [4,4′-diacetoxy-6,6′,8,8′-tetramethoxy-7,7′-binaphthalene]-2,2′- dicarboxylate. The synthesis will be continued in the PhD, using methodology previously developed for the formation of the monomer, as well as methodology developed here.
Karapetyan, Vahuni [Verfasser]. "Synthesis of bridged and non-bridged N-heterocycles, dichloromethyl- and formyl-salicylates, pyran-4-ones, chromanes and isochromanes based on cyclocondensation reactions of 1,3-bis(silyloxy)-1,3-butadienes and oxime dianions / vorgelegt von Vahuni Karapetyan." 2009. http://d-nb.info/1001599659/34.
Full textSenanayake, Badra Sriyani. "Approaches to natural isochromans by isomerisation of aryldioxolanes." Phd thesis, 1992. http://hdl.handle.net/1885/138963.
Full textWei-Hsiang, Hung, and 洪偉翔. "A Synthesis of Isochromans Via Claisen Rearrangement and Intramolecular Cyclization." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/95048723709620156052.
Full text高雄醫學大學
藥學研究所碩士在職專班
92
英文摘要 In this study, 2-allyloxyisovanillin ( 2 ), prepared from isovanillin ( 1 ), was heated at higher temperature ( 180 ℃) to undergo the Claisen rearrangement to furnish 2-allyl-3-hydroxy-4-methoxybenzaldehyde ( 3 ). Based on O-alkylation and reduction ,compound 3 was converted into 3-alkyloxy-2-allyl-4-methoxybenzyl alcohol ( 5 ) in good yields. Followed by the treatment of compound 5 with potassium tert-butoxide to undergo the isomerization of the allylic double bond, and concomitantly to undergo the sp2-endo trigonal intramolecular cyclization, gave a series of new substituted isochromans in moderate yields.
Book chapters on the topic "Isochromanes"
Lavine, Barry K., and Collin White. "Odor-Structure Relationship Studies of Indan, Tetralin, and Isochroman Musks." In ACS Symposium Series, 333–59. Washington, DC: American Chemical Society, 2015. http://dx.doi.org/10.1021/bk-2015-1191.ch023.
Full textFauszt, I., A. Fehér, Gy Horváth, A. Juhász, E. Széll, and S. Bajusz. "Facile synthesis of 1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid, a constrained phenylglycine and its oxa analog, isochromane-1-carboxylic acid." In Peptides 1994, 678–79. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-1468-4_311.
Full text"Olive Oil Hydroxy-Isochromans." In Olive Oil, 207–14. CRC Press, 2008. http://dx.doi.org/10.1201/9781420059946-13.
Full textGuiso, Marcella, Giuliana Trefiletti, and Giuseppina Togna. "Olive Oil Hydroxy-Isochromans." In Olive Oil, 193–200. CRC Press, 2008. http://dx.doi.org/10.1201/9781420059946.ch9.
Full textFreeman, R. "Spin choreography." In Pulsed Magnetic Resonance: NMR, ESR, and Optics, 219–41. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198539629.003.0010.
Full textNógrádi, M. "By Oxidative Fragmentation of 1-2-Benzopyrans (Isochromans)." In Six-Membered Hetarenes with One Chalcogen, 1. Georg Thieme Verlag KG, 2003. http://dx.doi.org/10.1055/sos-sd-014-00146.
Full textMenche, D. "Stereoselective Synthesis of Isochromanones with and Without Activated Spin Intermediates." In Strategies and Tactics in Organic Synthesis, 193–213. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-08-100756-3.00007-8.
Full textConference papers on the topic "Isochromanes"
C.T., Samlan, Dinesh N. Naik, and Nirmal K. Viswanathan. "Separating Isogyres and Isochromates of a Uniaxial Crystal using Fourier Fringe Analysis." In International Conference on Fibre Optics and Photonics. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/photonics.2016.th3a.4.
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