Relevant bibliographies by topics / A-diketones

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'A-diketones'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "A-diketones"

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Su, Biyun, Yifan Hou, Li Wang та ін. "The Syntheses, Characterization and Crystal Structures of a Series of Heterocyclic β-Diketones and Their Isoxazole Compounds". Current Organic Synthesis 16, № 8 (2020): 1174–84. http://dx.doi.org/10.2174/1570179416666191022113022.

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Background: In the field of coordination chemistry, the introduction of heterocyclic substituents into the structure of β-diketone enables ligand to produce multiple coordination sites. The adoption of small steric oxime group into the structure of heterocyclic β-diketone by Schiff-base condensation will further increase coordination sites and facilitate the generation of polynuclear structures. Objective: A series of β-diketones (2a-2c) containing different heterocycles such as pyridine, thiophene and furan and their corresponding isoxazole compounds (3a-3c) were synthesized. Materials and Me
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Talbi, Soumaya, Mustapha Dib, Latifa Bouissane, Hafid Abderrafia, Souad Rabi, and Mostafa Khouili. "Recent Progress in the Synthesis of Heterocycles based on 1,3-diketones." Current Organic Synthesis 19, no. 2 (2022): 220–45. http://dx.doi.org/10.2174/1570179418666211011141428.

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: N,O-heterocycles containing the dicarbonyl ring play a significant role in heterocyclic and therapeutic chemistry. Since the discovery of 1,3-diketones, numerous research works have been achieved regarding the synthesis and its chemical reactivity. In this review, we have described the most relevant publications involving β-diketone compounds published during the period between 2018 to date. In addition, we include the 1,3-diketones-based heterocyclic compounds prepared by various synthetic methodologies.
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Tomachynski, L. A., V. Ya Chernii та S. V. Volkov. "Synthesis and spectral characterization of bis(β-diketonato)zirconium(IV) and -hafnium(IV) phthalocyaninates". Journal of Porphyrins and Phthalocyanines 06, № 02 (2002): 114–21. http://dx.doi.org/10.1142/s1088424602000154.

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The reaction of PcMCl 2 ( M = Zr , Hf ) with β-diketones is reported. 1 H NMR and elemental analysis suggest the substitution of two Cl atoms for two β-diketone fragments takes place as a result of this reaction and the complexes PcM(β-dik)2 are formed. All obtained complexes are stable and highly soluble in most organic solvents. The data from 1 H and 19 F NMR, and UV-vis spectroscopy suggest the coordination of two β-diketone ligands in a cis geometry about the central atom of the macrocycle. It was shown bis(β-diketonato)zirconium(IV) and hafnium(IV) phthalocyanines containing β-diketones w
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Podyachev, Sergey N., Rustem R. Zairov, and Asiya R. Mustafina. "1,3-Diketone Calix[4]arene Derivatives—A New Type of Versatile Ligands for Metal Complexes and Nanoparticles." Molecules 26, no. 5 (2021): 1214. http://dx.doi.org/10.3390/molecules26051214.

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The present review is aimed at highlighting outlooks for cyclophanic 1,3-diketones as a new type of versatile ligands and building blocks of the nanomaterial for sensing and bioimaging. Thus, the main synthetic routes for achieving the structural diversity of cyclophanic 1,3-diketones are discussed. The structural diversity is demonstrated by variation of both cyclophanic backbones (calix[4]arene, calix[4]resorcinarene and thiacalix[4]arene) and embedding of different substituents onto lower or upper macrocyclic rims. The structural features of the cyclophanic 1,3-diketones are correlated with
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Chen, Xiao, Wei Liu, Lu Wang та ін. "Diabetes mellitus is associated with elevated urinary pyrrole markers of γ-diketones known to cause axonal neuropathy". BMJ Open Diabetes Research & Care 8, № 1 (2020): e001575. http://dx.doi.org/10.1136/bmjdrc-2020-001575.

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IntroductionProgressive distal symmetrical axonal neuropathy, a complication of diabetes mellitus (DM), has an unknown cause. Normal physiological metabolism and diabetic dysmetabolism are associated with the generation of γ-diketones. γ-Diketones form pyrroles with protein amines, notably with axonal proteins required for the maintenance of nerve fiber integrity, especially elongate, large-diameter peripheral nerve fibers innervating the extremities. We tested the hypothesis that neuropathy-associated γ-diketone pyrroles are elevated in DM.Research design and methodsWe measured the urinary co
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GROGAN, Gideon. "Emergent mechanistic diversity of enzyme-catalysed β-diketone cleavage". Biochemical Journal 388, № 3 (2005): 721–30. http://dx.doi.org/10.1042/bj20042038.

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The enzymatic cleavage of C–C bonds in β-diketones is, comparatively, a little studied biochemical process, but one that has important relevance to human metabolism, bioremediation and preparative biocatalysis. In recent studies, four types of enzymes have come to light that cleave C–C bonds in the β-diketone functionality using different chemical mechanisms. OPH [oxidized poly(vinyl alcohol) hydrolase from Pseudomonas sp. strain VM15C], which cleaves nonane-4,6-dione to butyrate and pentan-2-one is a serine-triad hydrolase. Dke1 (diketone-cleaving enzyme from Acinetobacter johnsonii) is a dio
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Wang, Guanjie, Min Zhang, Yezhi Guan, et al. "Desymmetrization of Cyclic 1,3-Diketones under N-Heterocyclic Carbene Organocatalysis: Access to Organofluorines with Multiple Stereogenic Centers." Research 2021 (August 23, 2021): 1–13. http://dx.doi.org/10.34133/2021/9867915.

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Symmetric 1,3-diketones with fluorine or fluorinated substituents on the prochiral carbon remain to be established. Herein, we have developed a novel prochiral fluorinated oxindanyl 1,3-diketone and successfully applied these substrates in carbene-catalyzed asymmetric desymmetrization. Accordingly, a versatile strategy for asymmetric generation of organofluorines with fluorine or fluorinated methyl groups has been developed. Multiple stereogenic centers were selectively constructed with satisfactory outcomes. Structurally diverse enantioenriched organofluorines were generated with excellent re
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Merner, Bradley, Nirmal Mitra, and Caroline Merryman. "Highly Strained para-Phenylene-Bridged Macrocycles from Unstrained 1,4-Diketo Macrocycles." Synlett 28, no. 17 (2017): 2205–11. http://dx.doi.org/10.1055/s-0036-1589081.

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The conversion of macrocyclic 1,4-diketones to highly strained para-phenylene rings has recently been reported by our laboratory. This synthetic strategy represents a non-cross-coupling-based approach to arene-bridged macrocycles, and an alternative to palladium- and nickel-mediated processes. In this Synpacts article we discuss the development of endgame aromatization protocols for the synthesis of increasingly strained arene systems, as well as potential advantages of the macrocyclic 1,4-diketone approach to selectively functionalized benzenoid macrocycles for future complexity building reac
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Faletrov, Ya V., V. A. Staravoitava, H. I. Pozniak, and V. M. Shkumatov. "Natural diketones as potential covalent ligands for SARS-CoV-2 proteins: an <i>in silico</i> docking study." Proceedings of the National Academy of Sciences of Belarus, Chemical Series 58, no. 3 (2022): 280–85. http://dx.doi.org/10.29235/1561-8331-2022-58-3-280-285.

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Our computer-aided protein-ligand docking test using Autodock Vina software allowed to reveal the potential of few α- and β-diketones from plants and alternative living organisms as covalent ligands for few proteins of coronavirus SARS-CoV-2 – a causative agent of COVID-19. It has been established that values for energy of binding (docking score, Ebind, kcal/mol) less than –7.5 and for distances of ligands’ carbonyl groups to side chain nitrogens of arginine residues of some coronaviral enzymes within 0.4 nm have been true for β-diketones 6-gingerdione (Pubchem code CID162952), 8-gingerdione (
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Galeev, Andrey R., Maksim V. Dmitriev, Alexander S. Novikov, and Andrey N. Maslivets. "Heterocycle-guided synthesis of m-hetarylanilines via three-component benzannulation." Beilstein Journal of Organic Chemistry 20 (September 2, 2024): 2208–16. http://dx.doi.org/10.3762/bjoc.20.188.

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A one-pot three-component synthesis of substituted meta-hetarylanilines from heterocycle-substituted 1,3-diketones has been developed. The electron-withdrawing power of the heterocyclic substituent (which can be estimated on the basis of calculated Hammett constants) in the 1,3-diketone plays a pivotal role in the studied reaction. The series of meta-hetarylanilines prepared (21–85% isolated yield) demonstrates the synthetic utility of the developed method.
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Dissertations / Theses on the topic "A-diketones"

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Blanchette, Maxime. "Development of a method for the LCMS determination of vicinal diketones in beer." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100772.

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No existent analytical method allowed the determination of the vicinal diketones (VDK), 2,3-butanedione (diacetyl) and 2,3-pentanedione, by liquid chromatography/mass spectrometry (LC/MS). An LC/MS method was developed for the simultaneous determination of diacetyl and 2,3-pentanedione in beer. A method allowing the determination of the amino acids (AA) related to the formation of VDK during fermentation was also developed. VDK were derivatized with o-phenylenediamine (OPDA) to form quinoxaline compounds. The reaction of VDK with OPDA was studied to optimize reaction time. Conversion of the di
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Arbit, Ruslan Mikhaylovich. "I. Homologation of alpha-diketones. II. Synthesis of epiafricanol and advances toward longithorone a and paclitaxel." The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1070356064.

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Broan, Christopher John. "A mechanistic study of the acid and base catalysed reactions of thiourea, 1-substituted thioureas and 1,3 -disubstituted thioureas with 1,2-diketones." Thesis, University of St Andrews, 1989. http://hdl.handle.net/10023/14978.

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Thiourea, 1-substituted thioureas and 1,3-disubstituted thioureas react under acidic or basic catalysis with 1,2-diketones to give a wide variety of products. The nature of the product or products depends on the conditions used, the degree of substitution of the thiourea and on the nature of the aromatic or aliphatic groups attached to the dicarbonyl unit of the diketone. The mechanisms of formation of the various products have been investigated by a variety of techniques, including the determination of rate equations by ultraviolet spectroscopy, the influence of side group substituents on the
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Vargas, Pâmela Schütz de. "Reações de β-enaminodicetonas com ncn dinucleófilos: obtenção de pirimidinas e sistemas heterocíclicos fundidos". Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/4288.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>In this study the reactivity of β-enamino diketones [RC(O)C(=CHNMe2)C(O)CO2Et, R = C6H5, 4-Me-C6H4, 4-MeO-C6H4, 4-F-C6H4, 4-Br-C6H4, 4-NO2-C6H4, tien-2-il] with NCN bisnucleophiles as amidine and guanidine was investigated. The tiopirimidines ethyl 2-benzylthio-pyrimidine-4-carboxylates, (65-91 %) and Ethyl 2-metiltiopirimidine-4-carboxylates (69-91 %) were obtained in a highly regioselective manner by cyclocondensation reaction of β-enamino diketones with benzylisothiourea hydrochloride and methylisothiourea sulfate, respectivel
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Eck, Geneviève. "Synthèse partielle de la frédéricamycine A." Paris 6, 1986. http://www.theses.fr/1986PA066466.

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Le but du travail a été la synthèse d'un composé spirannique dicétonique modèle : le spiro (indane)-1,2'-(dimethoxy-4',7'indanedione-1',3')1. La première voie envisagée s'inspire de la synthèse de dialkyl-2,2 indanediones-1,3 par double réaction de Friedel-Crafts entre le dimethoxy-1,4 benzène et un chlorure d'acide dialkyl malonique. Ainsi, dans un premier temps le dimethoxy-1,4 benzène et l'acide cyclopentane dicarboxylique-1,1, en présence du réactif acide méthanesulfonique-anhydrique, fournissent le composé spirannique dicetonique résultat d'une double condensation avec un rendement de 45%
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Chang, Chia-Lung, та 張嘉隆. "New Ruthenium-Catalyzed Cleavage of a Carbon -Carbon Triple Bond and Rearrangement of α,β-Epoxy Ketones into 1,2-Diketones". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/69039992051066760056.

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Zhou, Fei. "Towards the synthesis of a tetraketide and an Ü-diketone : two biosynthetic precursors of the fungal metabolite oudenone." Thesis, 1995. http://spectrum.library.concordia.ca/6188/1/MM05128.pdf.

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Book chapters on the topic "A-diketones"

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Yokoshima, Satoshi. "Construction of Quinoline N-Oxides and Synthesis of Aurachins A and B: Discovery, Application, and Mechanistic Insight." In Modern Natural Product Synthesis. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1619-7_17.

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AbstractA method to synthesize 3-hydroxyquinoline N-oxides from ketones having a 2-nitrophenyl group at the α-position relative to the carbonyl group was developed. The substrates were easily prepared via a SNAr reaction or a Sonogashira coupling, and treatment with sodium tert-butoxide in dimethyl sulfoxide produced the corresponding quinoline N-oxides. The method was successfully applied to the total synthesis of aurachins A and B. On the basis of the quinoline N-oxide synthesis, related reactions of α-(2-nitrophenyl)ketones, including nitrone formation and photoinduced rearrangement, were a
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Pardasani, R. T., and P. Pardasani. "Magnetic properties of binuclear mixed ligand complex of oxovanadium(IV) with heterocyclic β-diketone, 2, 2′-bipyridine a heterocyclic nitrogen base." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_388.

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Schatz, J. "From 1,2-Diketones and a Selenodiacetate (Hinsberg Synthesis)." In Fully Unsaturated Small-Ring Heterocycles and Monocyclic Five-Membered Hetarenes with One Heteroatom. Georg Thieme Verlag KG, 2001. http://dx.doi.org/10.1055/sos-sd-009-00522.

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"The role of the mitochondrial ILV enzymes in the over-production of vicinal diketones by petite mutants." In European brewery convention. Oxford University PressOxford, 1991. http://dx.doi.org/10.1093/oso/9780199632831.003.0032.

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Abstract The petite mutation has been shown to affect the specific activities of some enzymes of the isoleucine-valine pathways which are encoded by nuclear genes but are located in the mitochondria. Results indicated a decrease especially of the acetohydroxyacid isomeroreductase (ILV5) activity which has been shown to be the rate limiting step responsible for the overproduction of vicinal diketones (VDK). The reduced ILV5 activity observed in rho mutants invariabily results in a concomitant increase in the production of VDK. Moreover, amplification of the ILV5 activity in these mutants also r
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Malleron, J. L., J. C. Fiaud, and J. Y. Legros. "Preparation of α-Diketones Derivatives via an Oxidative Rearrangement of a Propargyl Acetate." In Handbook of Palladium-Catalyzed Organic Reactions. Elsevier, 1997. http://dx.doi.org/10.1016/b978-012466615-3/50062-8.

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Bailey, Patrick D., and Keith M. Morgan. "Nitro compounds." In Organonitrogen Chemistry. Oxford University Press, 2022. http://dx.doi.org/10.1093/hesc/9780198557753.003.0017.

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This chapter focuses on nitroso compounds. It refers to nitroso compounds as tautomeric with oximes that are thermodynamically more stable. The chapter shares diagrams to reference the bonding. C-nitroso compounds are readily turned to the corresponding oxime if there is a hydrogen-? linked to the nitroso group. Additionally, the chapter discusses the synthesis of aliphatic C-nitroso compounds, aromatic C-nitroso compounds, α-diketones via nitrosis compounds, N-nitroso compounds, and O-nitroso compounds. It mentions how aliphatic C-nitroso compounds tautomerizse to the oxime if an α-hydrogen i
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Beletskaya, I. P. "Organotin and organosilicon compounds in cross-coupling, aromatic nucleophilic substitution, and addition reactions." In Chemistry and Technology of Silicon and Tin. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198555803.003.0009.

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Abstract Abstract The reactions of organotin compounds with organic halides and acid halides catalysed by palladium complexes without phosphine ligands have been carried out under very mild conditions. These reactions afford biaryls, tolans, styrenes, dienes, and unsymmetrical ketones having various substituents. The synthesis of organotin compounds may be realized through the reactions of organic halides with hexaaryldistannanes catalysed by palladium and nickel complexes. The palladium-catalysed carbonylation of organic halides in the presence of organotin compounds of the series Alk SnNu (N
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Donohoe, Timothy J. "Oxidation of carbon-carbon double and triple bonds." In Oxidation and Reduction in Organic Synthesis. Oxford University Press, 2000. http://dx.doi.org/10.1093/hesc/9780198556640.003.0003.

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This chapter examines the oxidation of carbon–carbon double and triple bonds. The oxidation of carbon–carbon π-bonds can yield several useful functional groups. Many oxidising agents have been developed for this purpose. In fact, one of the main advantages of oxidising alkenes is that the product distribution can be controlled, and a particular functional group formed, simply by the choice of oxidant. The chapter begins by looking at the oxidation of alkenes to form epoxides. Epoxides are the cyclic ethers that may be formed from the reaction of an alkene with an oxidising agent. They are elec
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Postigo, Vanesa, Margarita García, and Teresa Arroyo. "Non-conventional Saccharomyces yeasts for beer production." In New Advances in Saccharomyces [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.1003748.

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Beer is a world-famous beverage, second only to tea and coffee, where the yeasts traditionally used are Saccharomyces cerevisiae and Saccharomyces pastorianus for the production of ale and lager beer, respectively. Their production, especially craft beer production, has grown in recent years, as has the development of new products. For this reason, research has focused on the selection of yeasts with good fermentation kinetics, as well as beers with outstanding aromatic profiles. The final flavor and aroma of beer is a combination of hundreds of active aroma compounds produced mostly during fe
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"Quinoxaline 2-Ketones and Quinoxaline 2,3-Diketones." In Chemistry of Heterocyclic Compounds: A Series Of Monographs. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470187333.ch8.

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Conference papers on the topic "A-diketones"

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Lane, Gregg A. "Metal salts of beta-diketones as charging additives: a mechanistic study." In SC - DL tentative, edited by Joseph Gaynor. SPIE, 1990. http://dx.doi.org/10.1117/12.19799.

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Gomes, Winston Pinheiro Claro, FABIO RODRIGO PIOVEZANI ROCHA, and Wanessa Melchert Mattos. "A new approach for determination of total vicinal diketones in beers exploiting microdistillation." In Anais da Escola de Inverno de Quimiometria. Even3, 2023. http://dx.doi.org/10.29327/1321622.1-1.

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Shutalev, Anatoly, Nikolay Kurochkin, Dmitriy Goliguzov, and Dmitriy Cheshkov. "Unexpected result of reaction of b-halogen-a-tosyl-substituted ureas with b-oxoesters and 1,3-diketones. Synthesis of 3-acyl-substituted 5-ureido-4,5-dihydrofurans." In The 10th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2006. http://dx.doi.org/10.3390/ecsoc-10-01409.

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Agafonova, N. A., E. V. Shchegolkov, Ya V. Burgart, V. I. Saloutin, and M. V. Ulitko. "Synthesis of biological active compounds based on trifluoromethylcontaining 4-nitrosopyrazoles." In VIII Information school of a young scientist. Central Scientific Library of the Urals Branch of the Russian Academy of Sciences, 2020. http://dx.doi.org/10.32460/ishmu-2020-8-0009.

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e-pot nitrosation of 1,3-diketones or their lithium salts followed by treatment of hydrazines. Reduction of the nitroso-derivatives made it possible to obtain the 4-amino-3-trifluoromethylpyrazoles chlorides. Cytotoxic activity of the compounds wase evaluated in vitro
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Pyrko, A. N., S. L. Bondarev, T. F. Raichenok, and A. S. Pilipovich. "NFLUENCE OF ACID-BASE PROPERTIES OF THE ENVIRONMENT ON THE SPECTRAL AND LUMINESCENT PROPERTIES OF SOME CYCLIC DIKETONES AND TRIKETONES IN SOLUTIONS." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-2-141-144.

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The spectral and luminescent properties of trans-2-(4’-dimethylaminebenzylideneacetyl)-5,5-dimethylcyclohexane-1,3-dione and 10-hydroxy-3,3,6,6,9-pentamethyl-1,2,3,4,5,6,7,8,9,10-decahydroacridine-1,8-dione have been studied depending on the acid-base properties of the medium. It has been shown that the first compound can exist in the form of three different structural forms, while the second compound exhibits dual fluorescence in solvents with a high basicity parameter. These properties of chromophores can be used in chemical analysis to indicate the acid-base equilibrium of the medium.
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