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Dissertations / Theses on the topic 'Cyclohexenones'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Clark, R. S. J. "The synthesis of cyclohexenones by rearrangement of bicyclo(2,2,2)octanones." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356675.

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2

Sheth, Ritesh B. "Development of new synthetic methodologies and the synthesis of natural products." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 101 p, 2010. http://proquest.umi.com/pqdweb?did=1993336351&sid=2&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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3

Williams, Katharine. "Investigation of a synthetic approach to polyfunctionalised cyclohexenones related to the antheminone and carvotacetone natural products." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/investigation-of-a-synthetic-approach-to-polyfunctionalised-cyclohexenones-related-to-the-antheminone-and-carvotacetone-natural-products(bab498dd-4ab6-4f07-81f1-72b29cbb2f60).html.

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The natural product 2 crotonyloxymethyl-(4R,5R,6R)-4,5,6-trihydroxy-cyclohex-2-enone (COTC) was isolated from the microorganism Streptomyces griseosporeus in 1975. It was shown to exhibit 'cytotoxic and cancerostatic activity'. The simplified synthetic analogue 2-crotonyl-oxymethyl-cyclohex-2-enone (COMC) has been shown to exhibit potent anti tumour activity against murine and human tumours in cell culture. For several years, the Whitehead research group at the University of Manchester have focused on the synthesis of COTC and COMC analogues in an attempt to produce compounds with enhanced cyt

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4

Paramahamsan, Harinandini. "η⁶-Arenechromium Tricarbonyl Complexes: Conformational Analysis, Stereocontrol in Nucleophilic Addition and Applications in Organic Synthesis". Case Western Reserve University School of Graduate Studies / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=case1106262785.

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5

Kasprzyk, Milena, and milena kasprzyk@freehills com. "Synthetic Studies Towards the Tridachione Family of Marine Natural Products." Flinders University. Chemistry, Physics and Earth Sciences, 2008. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20081107.085933.

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Since the middle of the 20th century, significant interest has evolved from the scientific community towards the polypropionate family of marine natural products. A number of these compounds have been shown to possess significant biological activity, and this property, as well as their structural complexity, has driven numerous efforts towards their synthesis. The first chapter provides an introduction into the world of polypropionates, with a discussion on synthetic studies into a number of members of the tridachiapyrone family. Fundamental synthetic concepts utilised in this thesis towards t

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6

Ohnemüller, Ulrike. "Effiziente Synthese hochsubstituierter enantiomerenreiner Cyclohexenone und Tetrahydroxanthenone." Berlin Logos-Verl, 2005. http://deposit.ddb.de/cgi-bin/dokserv?id=2793052&prov=M&dok_var=1&dok_ext=htm.

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7

Ohnemüller, Ulrike Kerstin. "Effiziente Synthese hochsubstituierter enantiomerenreiner Cyclohexenone und Tetrahydroxanthenone /." Berlin : Logos Verl, 2006. http://deposit.ddb.de/cgi-bin/dokserv?id=2793052&prov=M&dok_var=1&dok_ext=htm.

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8

Jaunet, Alex. "Synthetic approaches to naturally occuring cyclohexenone epoxides." Thesis, University of Sheffield, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505527.

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9

Chen, Jianxin. "A study of the photorearrangements of crystalline dibenzobarrelene and cyclohexenone derivatives." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30985.

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Two series of compounds, 4,4-diarylcyclohexenones and 9-substituted dibenzobarrelenes, were synthesized and their photochemistry was investigated in the crystalline state and in solution medium. The differences in photoreactivity and product selectivity of these compounds between the solution and solid states have been determined, and possible structure-reactivity correlations are discussed based on X-ray crystallographic data for some of the substances. The photorearrangement of 4,4-diarylcyclohexenones was found to be affected moderately by the crystal lattice. The migratory aptitude of the

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10

Moralee, Andrew Charles. "The synthesis of geminally difluorinated cyclohexenols via Diels-Alder chemistry." Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391382.

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11

Hwang, Christine. "Crystal structures and solid state reactions of maleic anhydride and of a cyclohexenone and its photoproduct." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27966.

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Two sets of structures were determined by X-ray crystallographic techniques, one of maleic anhydride (2,5-furandione) and the other of 4-phenyl-4-p-bromophenylcyclohex-2-en-1-one and its photoproduct, trans-5-phenyl-6-p-bromophenylbicyclo[3.1.0]hexan-2-one. Analysis of maleic anhydride included a room temperature redetermination of the crystal structure. This was done to improve parameters and simplify comparison of the room temperature and low temperature data. The structure determination at 104k resulted in the location of bonding electrons in the double bond. Thermal motions of both sets o

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12

Boulet, Serge L. "Total syntheses of (±)-neoverrucosan-5(ß)-ol, (±)-homoverrucosan-5(ß)-ol, (±)-verrucosan-2(ß)-ol, and (±)-(3R,4R, 5R, 6S, 9R)-cyatha-12, 18-diene, a new cyclohexenone annulation sequence." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ34515.pdf.

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13

Xing, Dongxia. "Stereoselective Solid-State NaBH₄ Reduction of 1-Methylpentacyclo[5.4.0.0²,⁶.0³,¹⁰,0⁵,⁹]undecane-8, 11-Dione, Synthesis and Chemistry of Strained Alkenes, and Chemical and Microbial Synthesis of Racemic and Optically Active (S)-4-Hydroxy-2-Cyclohexenone." Thesis, University of North Texas, 1995. https://digital.library.unt.edu/ark:/67531/metadc278368/.

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Part I. Reduction of the 1-methylpentacyclo [5.4.0.0²,⁶.0³,¹⁰,0⁵,⁹]undecane-8, 11-dione (9) with solid NaBH₄ resulted in highly stereoselective reduction of both C=O groups in the substrate, thereby affording the corresponding endo-8, endo-11-diol (11a). The configuration of 11a was established unequivocally by converting 11a into the corresponding cyclic thiocarbonate ester, 12. Part II. Z-1,2-Di(1'-adamantyl)ethene (14) was synthesized with a high degree of stereoselectively in four steps (Scheme 9 in Chapter 2). E-1,2-di(1'-adamantyl)ethene (15) was synthesized by iodine promoted isomerizat

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14

Chien, Chiung-Fang, and 簡瓊芳. "The Diels-Alder Reaction of Alpha-Diethoxyphosphinyl-cyclohexenones and Applications." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/22883444593753937438.

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碩士<br>國立清華大學<br>化學系<br>89<br>Abstract The Diels-Alder cycloaddition reaction of -diethylphosphonyl cyclohex-2-en-1-ones 34 and 37 and subsequent transformations of resulting cycloadducts are described in this thesis. Part one dscribes the Diels-Alder cycloaddition reaction of enones 34 and 37, which were synthesized using known procedures. Enones 34 and 37 were found to be effective dienophiles, giving the expected cycloadducts in good to excellent yields and within a reasonable period of time. The reaction was found to follow the ortho- and para- rules and gave the en

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15

Wang, Bingbing. "Photochemistry of 6-alkenyl-2-cyclohexenones : synthetic studies towards precursors of ryanodol." Thesis, 1998. http://hdl.handle.net/1957/33725.

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Regiochemistry of intramolecular [2+2] photocycloadditions of oxygenated 6-alkenyl-3-alkoxy-2-cyclohexenones is studied. Application of this methodology to construct a key intermediate [3.3.2] bicyclic skeleton of ryanodol is described as well. Irradiation of (3-butenyl)compounds 3, 11, 14 and of (4-pentenyl)compound 6 afforded exclusively the linear photoadducts 4, 12, 15 and 7 respectively. Irradiation of allyl compound 25 brought the desired crossed photoadduct 26. The structures of the photoadducts 4, 7 and 26 were assigned based on spectroscopic analysis and confirmed by subsequent retroa

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16

Baker, Mark Robert. "The synthesis and photorearrangements of allenic analogues of cyclohexenones and 2,5-cyclohexadienones an investigation of allenic excited states /." 1992. http://catalog.hathitrust.org/api/volumes/oclc/27750476.html.

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17

Chen, Liang-Hsun, and 陳亮勳. "Part I. An Indium Promoted Asymmetric Allylation in Aqueous Cyclodextrin Solution Part II. Photochemistry of Cyclohexenones Containing Cyclopropyl Coumpounds." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/18366037569543051615.

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碩士<br>國立交通大學<br>應用化學系<br>92<br>Part I. An Indium Promoted Asymmetric Allylation in Aqueous Cyclodextrin Solution In this thesis we discussed about the allylation reaction promoted by indium using cyclodextrins as an auxiliary in aqueous solution. The effects of indium equivalent, cyclodextrin concentrations and solution temperature were studied, and the allyl aryl alcohols were obtained in 60~90% yield and a maximum of 24% e.e. was achieved. The failure to achieve a high e.e. value when using cyclodextrins as an auxiliary is due to the shallow binding of cyclodextrin complexes and a

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18

Zuraw, Michael John. "The investigation of organic photochemical reactions in crystalline solids the solid state photochemistry of cyclohexenones and di-[pi]-methane systems /." 1989. http://catalog.hathitrust.org/api/volumes/oclc/22377036.html.

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19

Wen-Yueh, Ho, and 何文岳. "Study of Intramolecular Radical Cyclization Reac- tions of Cyclohexenone." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/46233644151257648711.

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20

Wang, Hui-Ling, and 汪惠玲. "Photochemistry of Cyclohexenone Derivatives and the Syntheses of cis-Theaspirone, (ent)-Grindelic Acid and Dicyclopenta[a, d]cyclooctenes." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/52206275469465934403.

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21

St, Clair Jerry Dale. "Electronic and steric control of photochemical migratory aptitudes the photochemistry of 4-(1-naphthyl)-4-(2-naphthyl)-2-cyclohexenone /." 1988. http://catalog.hathitrust.org/api/volumes/oclc/19586851.html.

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22

Boulet, Serge L. "Total synthesis of (+-) neoverrucosan-5B-ol, (+-)-homoverrucosan-5B-ol, (+-)-verrucosan-2B-ol, and (+-)-(3R,4R,5R,6S,9R)-cyatha-12,18-diene : a new cyclohexenone annulation sequence." Thesis, 1998. http://hdl.handle.net/2429/9454.

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The total syntheses of four structurally related, naturally occurring compounds, (±)verrucosan-2β-ol (61), (±)-neoverrucosan-5β-ol (62), (±)-homoverrucosan-5β,-ol (63), and (±)-(3R, 4R, 5R, 6S, 9#)-cyatha-12,18-diene (64) are discussed in the first part of this thesis. In connection with the total syntheses of the natural products 61-64, a new bifunctional reagent mediated cyclohexenone annulation sequence was developed, but attempted application of this sequence to the natural product syntheses was not successful. The generality, scope and synthetic utility of this new annulation method are

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23

Lin, Huang Jian, and 黃建霖. "Design, Synthesis,and Evaluation as Inhibitors of 4-Hydroxyphenylpyruvate Dioxygenase and Synthesis and Evaluation of 3-Hydroxy-2-(2-nitrobenzoyl)2-cyclohexenone as a Selective Protecting Group for Primary Amines." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/59076390669826684076.

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