Relevant bibliographies by topics / Cyclohexenones

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Academic literature on the topic 'Cyclohexenones'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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Journal articles on the topic "Cyclohexenones"

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Okoth, Dorothy A., and Neil A. Koorbanally. "Cardanols, Long Chain Cyclohexenones and Cyclohexenols from Lannea schimperi (Anacardiaceae)." Natural Product Communications 10, no. 1 (2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000126.

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Alkenyl cyclohexenones (1a-d), alkenyl cyclohexenols (2a-c and 3b-d) and cardanols (4a-d) were isolated from the stem bark and root of Lannea schimperi. The alkenyl cyclohexenones (1a and 1d) and cardanols (4a and 4d) have side chains which have not been reported previously, in combination with the core skeletal structures. In addition, compounds 2a-c and 3b-d are all new cyclohexenols. Also isolated were the triterpenes, taraxerone and taraxerol, and sitosterol. The suite of compounds isolated (cyclohexenones and cyclohexenols) make up a nice biosynthetic pathway to the cardanols. The 5-[alke
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2

Hylden, Anne T., Eric J. Uzelac, Zeljko Ostojic, et al. "Cyclization of 5-hexynoic acid to 3-alkoxy-2-cyclohexenones." Beilstein Journal of Organic Chemistry 7 (September 23, 2011): 1323–26. http://dx.doi.org/10.3762/bjoc.7.155.

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The one-pot cyclization of 5-hexynoic acid to produce 3-alkoxy-2-cyclohexenones proceeds in good yields (58–90%). 3-Hexynoic acid was converted to its acyl chloride with the aid of oxalyl chloride and was cyclized to 3-chloro-2-cyclohexenone upon addition of indium(III) chloride. Subsequent addition of alcohol nucleophiles led to the desired 3-alkoxy-2-cyclohexenones.
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Davis, BR, MG Hinds, and SJ Johnson. "Diterpene Synthesis. III. Acid-Catalyzed Cyclization of Methoxyphenylethyltrimethyl-Cyclohexanols, Cyclohexenols and Cyclohexenones." Australian Journal of Chemistry 38, no. 12 (1985): 1815. http://dx.doi.org/10.1071/ch9851815.

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Cyclization of the methoxyphenylethyltrimethylcyclohexanols (3), (4) and (5), the cyclohexenols (6) and (7) and the cyclohexenones (20) and (21), in the presence of a variety of acids, has been studied and the products analysed by chromatographic and spectroscopic techniques. Both cis - and trans-podocarpa-8,11,13-trienes are formed, along with the rearranged compounds (16), (17) and (30). These results parallel our earlier findings and contrast with some reports in the literature.
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Schuster, David I., Jie-Min Yang, Jan Woning, Timothy A. Rhodes, and Anton W. Jensen. "Mechanism of acid-catalyzed photoaddition of methanol to 3-alkyl2-cyclohexenones." Canadian Journal of Chemistry 73, no. 11 (1995): 2004–10. http://dx.doi.org/10.1139/v95-247.

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Contrary to a previous report, it is concluded that formation of methanol adducts to 3-methyl-2-cyclohexenones and of deconjugated enones on irradiation of the enones in acidified solutions proceeds via protonation of the intermediate enone π,π* triplet excited state and not by protonation of a relatively long-lived ground state trans-cyclohexenone. A rate constant for protonation of the triplet state of 3-methyl-2-cyclohexenone by sulfuric acid of 1.7 × 109 M−1 s−1 was determined by laser flash photolysis in ethyl acetate. Based on quantum efficiencies of product formation, a rate constant of
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Weir, D., J. C. Scaiano, and D. I. Schuster. "A reinvestigation of the interaction between triplet states of cyclohexenones and amines." Canadian Journal of Chemistry 66, no. 10 (1988): 2595–600. http://dx.doi.org/10.1139/v88-407.

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Laser flash photolysis studies lead to the conclusion that the short-lived triplet states of cyclohexenones are readily quenched by amines. For example, in the case of 2-cyclohexen-1-one (1) its triplet state (τT = 40 ns in acetonitrile) is quenched by triethylamine with a rate constant of (9.0 ± 0.8) × 107 M−1 s−1. Cyclohexenone triplets are also quenched efficiently by DABCO and by triphenylamine leading to the formation of the corresponding amine radical cations. The new evidence reported rules out the involvement of long-lived detectable exciplexes.
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6

Helmchen, G., G. Franck, and K. Brödner. "Enantioselective Synthesis of Cyclohexenones." Synfacts 2010, no. 10 (2010): 1166. http://dx.doi.org/10.1055/s-0030-1258649.

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Weldetsadik, Ermias Tamiru, Na Li, Jingjuan Li, Jiahuan Shang, Hongtao Zhu, and Yingjun Zhang. "Undescribed Cyclohexene and Benzofuran Alkenyl Derivatives from Choerospondias axillaris, a Potential Hypoglycemic Fruit." Foods 13, no. 10 (2024): 1495. http://dx.doi.org/10.3390/foods13101495.

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The fruit of Choerospondias axillaris (Anacardiaceae), known as south wild jujube in China, has been consumed widely in several regions of the world to produce fruit pastille and leathers, juice, jam, and candy. A comprehensive chemical study on the fresh fruits led to the isolation and identification of 18 compounds, including 7 new (1–7) and 11 known (8–18) comprised of 5 alkenyl (cyclohexenols and cyclohexenones) derivatives (1–5), 3 benzofuran derivatives (6–8), 6 flavonoids (9–14) and 4 lignans (15–18). Their structures were elucidated by extensive spectroscopic analysis. The known lignan
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VERHE, R. "ChemInform Abstract: 3-Isobutoxy-2-cyclohexenone: A Versatile Synthon for the Regiospecific Alkylation of Cyclohexenones." ChemInform 24, no. 52 (2010): no. http://dx.doi.org/10.1002/chin.199352309.

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Clot-Almenara, Lidia, Carles Rodríguez-Escrich, and Miquel A. Pericàs. "Desymmetrisation of meso-diones promoted by a highly recyclable polymer-supported chiral phosphoric acid catalyst." RSC Advances 8, no. 13 (2018): 6910–14. http://dx.doi.org/10.1039/c7ra13471a.

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Samser, Shaikh, Priyabrata Biswal, Sushanta Kumar Meher, and Krishnan Venkatasubbaiah. "Palladium mediated one-pot synthesis of 3-aryl-cyclohexenones and 1,5-diketones from allyl alcohols and aryl ketones." Organic & Biomolecular Chemistry 19, no. 6 (2021): 1386–94. http://dx.doi.org/10.1039/d0ob02515a.

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Dissertations / Theses on the topic "Cyclohexenones"

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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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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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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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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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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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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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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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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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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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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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Books on the topic "Cyclohexenones"

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Moralee, Andrew Charles. The synthesis of geminally difluorinated cyclohexenols via Diels-Alder chemistry. University of Birmingham, 2001.

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Wang, Bingbing. Photochemistry of 6-alkenyl-2-cyclohexenones: Synthetic studies towards precursors of ryanodol. 1998.

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3

Wang, Bingbing. Photochemistry of 6-alkenyl-2-cyclohexenones: Synthetic studies towards precursors of ryanodol. 1998.

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4

Ma, Shihong. Ring opening reactions of oxabicyclic compounds: Formation of substituted cyclohexadienes, cyclohexenols and cycloheptenols. 1996.

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Book chapters on the topic "Cyclohexenones"

1

Toromanoff, Edmond. "Steric Course of the Kinetic 1,2 Addition of Anions to Conjugated Cyclohexenones." In Topics in Stereochemistry. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470147115.ch3.

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Prager, R. H., and C. M. Williams. "Reaction of Isatoic Anhydrides and Cyclohexenones." In Six-Membered Hetarenes with One Nitrogen or Phosphorus Atom. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-015-01722.

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Witulski, B., and C. Alayrac. "[2+2] Cycloadditions with Cyclopentenones and Cyclohexenones." In Three Carbon-Heteroatom Bonds: Ketenes and Derivatives. Georg Thieme Verlag KG, 2006. http://dx.doi.org/10.1055/sos-sd-024-01030.

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George, D. M., and R. L. Danheiser. "Formation of Cyclohexenones and Phenols by [4+2] Cycloadditions." In Three Carbon-Heteroatom Bonds: Thio-, Seleno-, and Tellurocarboxylic Acids and Derivatives; Imidic Acids and Derivatives; Ortho Acid Derivatives. Georg Thieme Verlag KG, 2006. http://dx.doi.org/10.1055/sos-sd-023-00072.

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Taber, Douglass F. "The Williams Synthesis of (–)-Khayasin." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0101.

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The tetranortriterpenoid (–)-khayasin 3 recently emerged as a potent and selective insecticide against the Coconut leaf beetle Brontispa longissima. In considering a synthetic route to 3, Craig M. Williams of the University of Queensland envisioned (J. Org. Chem. 2012, 77, 8913) the convergent preparation of the allyl vinyl ether 1 and subsequent Claisen rearrangement to the enone 2. To pursue this strategy, the ketone 8 and the allylic alcohol 15 had to be prepared in enantiomerically pure form. To this end, the DIP-Cl-derived enolate of the ketone 7 was added to the aldehyde 6 to give a seco
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Taber, Douglass. "The Toste Synthesis of ( + )-Fawcettimine." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0091.

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The tetracyclic Lycopodium alkaloid fawcettimine 3 and its derivatives are of interest as inhibitors of acetylcholine esterase. F. Dean Toste of the University of California, Berkeley recently reported (Angew. Chem. Int. Ed. 2007, 46, 7671) the first enantioselective synthesis of 3. The key to the synthesis was the rapid assembly of the enantiomerically-enriched hydrindane 2. The preparation of 2 began with the enantioselective Robinson annulation of the β-keto ester 4 with crotonaldehyde 5, mediated by the organocatalyst 6. In this protocol, originally developed by Karl Anker Jørgensen, the s
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Taber, Douglass. "Stereocontrolled Carbocyclic Construction: The Trauner Synthesis of the Shimalactones." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0080.

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Benjamin List of the Max Planck Institute, Mülheim devised (J. Am. Chem. Soc. 2008, 130, 6070) a chiral primary amine salt that catalyzed the enantioselective epoxidation of cyclohexenone 1 . Larger ring and alkyl-substituted enones are also epoxidized with high ee. Three- and four-membered rings are versatile intermediates for further transformation. Tsutomu Katsuki of Kyushu University developed (Angew. Chem. Int. Ed. 2008, 47, 2450) an elegant Al(salalen) catalyst for the enantioselective Simmons-Smith cyclopropanation of allylic alcohols such as 3. Kazuaki Ishihara of Nagoya University fou
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Ghomari, R., A. Bouferguene, P. E. Hoggan, and S. M. Mekelleche. "A Density Functional Theory Study of the Adsorption of 2-Cyclohexenone on Rh(111)." In Advances in Quantum Chemistry. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-800536-1.00009-5.

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Kageyama, Hakuto. "Mycosporine-like Amino Acids and their Biomolecular Properties." In An Introduction to Mycosporine-Like Amino Acids. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815136081123010003.

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Mycosporine-like amino acids (MAAs) are natural ultraviolet (UV)- absorbing compounds that are attracting attention in the industrial field including cosmetics and pharmaceuticals. This book provides a wide range of descriptions of MAAs, from fundamentals to applications. In order to discuss the properties of MAAs, an understanding of their chemical structures would be required. The purpose of this chapter is to understand the basic molecular structure of MAAs. In general, MAAs have structures in which amino acids are bound to the core structures of cyclohexenone or cyclohexenimine. In additio
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Taber, Douglass F. "Metal-Mediated C–C Ring Construction: The Lei Synthesis of (−)-Huperzine Q." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0076.

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Following the Szymoniak protocol, Morwenna S. M. Pearson-Long and Philippe Bertus of the Université du Maine added (Synthesis 2015, 47, 992) the Grignard rea­gent 2 to the nitrile 1 to give the cyclopropyl amine 3. Chen-Guo Feng of the Shanghai Institute of Organic Chemistry prepared (Chem. Commun. 2015, 51, 8773) the cyclobutane 6 by enantioselective conjugate addition of 5 to the unsaturated ester 4. Martin Kotora of Charles University showed (Eur. J. Org. Chem. 2015, 2868) that the zirconacycle from the eneyne 7 reacted with the aldehyde 8 to give, after iodina­tion, the alcohol 9. Xiaoming
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Conference papers on the topic "Cyclohexenones"

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Wisetsai, A., R. Lekphrom, and FT Schevenels. "Roxydienone, a novel cyclohexenone from Trachyspermum roxburghianum." In 67th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA) in cooperation with the French Society of Pharmacognosy AFERP. © Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-3400153.

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