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Journal articles on the topic 'Β-diketone'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Korde, Nanda S., Ravindra S. Shinde та Prashant G. Kumdale. "ECO-FRIENDLY SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL EVALUATION OF POTENTIALLY ACTIVE Β-DIKETONE LIGAND AND ITS TRANSITION METAL COMPLEXES". Journal of Advanced Scientific Research 12, № 04 Suppl 1 (2021): 117–21. http://dx.doi.org/10.55218/jasr.s1202112411.

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Diketones are key intermediates for the synthesis of core heterocycles such as isoxazole, pyrazole, flavones, triazole, pyrimidine and benzodiazepines. The β-diketone ligand and its transition metal complexes have been manufactured by ultrasound irradiation. The β-diketone is prepared by using Baker-Venkatraman rearrangement and characterized by physical, spectral and analytical data. The moieties β-diketone compound acts as bidentate ligand and co-ordinate with the transition metal atom through β-diketone system. The synthesized compounds have also been screened for in vitro antibacterial and

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2

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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3

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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4

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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5

Liu, Yi-Wei, Satpal Singh Badsara, Yi-Chen Liu та Chin-Fa Lee. "K2S2O8/I2 promoted syntheses of α-thio-β-dicarbonyl compounds via oxidative C–S coupling reactions under transition metal-free and solvent-free conditions". RSC Advances 5, № 55 (2015): 44299–305. http://dx.doi.org/10.1039/c5ra07204b.

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K<sub>2</sub>S<sub>2</sub>O<sub>8</sub>/I<sub>2</sub> promoted C–S coupling reaction of β-diketone with disulfide has been described. The resulting α-thio-β-diketones compounds were obtained in good to excellent yields.

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6

Louis, Marine, Régis Guillot, Rémi Métivier та Clémence Allain. "β-Diketone derivatives: influence of the chelating group on the photophysical and mechanofluorochromic properties". Photochemical & Photobiological Sciences 17, № 6 (2018): 822–28. http://dx.doi.org/10.1039/c8pp00070k.

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A diphenyl-boron β-diketonate complex was synthesized and compared with the related β-diketone and difluoro-boron complex, showing that the three compounds display very distinct photophysical and mechanofluorochromic behaviors.

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7

Syed Ameen, Syed Tajudeen, Anbalagan Vilvanathan, Syed Zameer Ahmed Khader та Gayathri Mahalingam. "Microwave-assisted Green Synthesis of β-Diketone Hydrazone Derivatives and Evaluation of their Antioxidant and Antibacterial Activities". Current Microwave Chemistry 7, № 3 (2020): 222–29. http://dx.doi.org/10.2174/2213335607999200917145217.

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Background: A series of β-diketone hydrazones have been synthesized via condensation of isoniazid with series of β-diketone. The structures of the Schiff bases are established by elemental and spectroscopic techniques. The prepared compounds were screened for antibacterial and antioxidant potential by DPPH free-radical scavenging activity and Ferric reducing antioxidant power (FRAP) assays. Methods: β-diketone hydrazine derivatives were synthesized by simple condensation between various β-diketones and isoniazid. The titled compounds were synthesized following both conventional and microwave i

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8

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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9

Baum, Bernard R., A. Pat Tulloch, and L. Grant Bailey. "Epicuticular waxes of the genus Hordeum: a survey of their chemical composition and ultrastructure." Canadian Journal of Botany 67, no. 11 (1989): 3219–26. http://dx.doi.org/10.1139/b89-401.

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This study was based on 148 accessions representing 39 species of Hordeum. SEM ultrastructural morphology of waxes was based on individual spikelets, whereas waxes' chemical composition was assessed from whole plants. When all the data, in the form of individual accessions, were subjected to various cluster analyses methods, no groupings were revealed. But when the data were first summarized by species and then subjected to clustering, two polythetic groups of species were detected. Group 1 is characterized by species with 40–60% average alcohol content and by the common presence of diketones,

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10

Grogan, Gideon. "β-Diketone hydrolases". Journal of Molecular Catalysis B: Enzymatic 19-20 (грудень 2002): 73–82. http://dx.doi.org/10.1016/s1381-1177(02)00153-4.

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11

Emsley, John, Neville J. Freeman, Robert J. Parker, Reiko Kuroda та Richard E. Overill. "β-Diketone interactions". Journal of Molecular Structure 159, № 1-2 (1987): 173–82. http://dx.doi.org/10.1016/0022-2860(87)85015-9.

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12

Emsley, John, Neville J. Freeman, Michael B. Hursthouse та Paul A. Bates. "β-diketone interactions". Journal of Molecular Structure 161 (жовтень 1987): 181–92. http://dx.doi.org/10.1016/0022-2860(87)85073-1.

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13

Emsley, John, та Neville J. Freeman. "β-diketone interactions". Journal of Molecular Structure 161 (жовтень 1987): 193–204. http://dx.doi.org/10.1016/0022-2860(87)85074-3.

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14

Emsley, John, Lewina Y. Y. Ma, Paul A. Bates та Michael B. Hursthouse. "β-diketone interactions". Journal of Molecular Structure 178 (серпень 1988): 297–303. http://dx.doi.org/10.1016/0022-2860(88)85027-0.

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15

Emsley, John, Neville J. Freeman, Paul A. Bates та Michael B. Hursthouse. "β-Diketone interactions". Journal of Molecular Structure 196 (травень 1989): 249–55. http://dx.doi.org/10.1016/0022-2860(89)85022-7.

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16

Emsley, John, Lewina Y. Y. Ma, Sacha A. Karaulov, Majid Motevalli та Michael B. Hursthouse. "β-diketone interactions". Journal of Molecular Structure 216 (січень 1990): 143–52. http://dx.doi.org/10.1016/0022-2860(90)80322-b.

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17

Kurbanova, Malahat Musrat, Abel Mammadali Maharramov, Arzu Zabit Sadigova та ін. "Synthesis, Characterization, DFT, and In Silico Investigation of Two Newly Synthesized β-Diketone Derivatives as Potent COX-2 Inhibitors". Bioengineering 10, № 12 (2023): 1361. http://dx.doi.org/10.3390/bioengineering10121361.

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Despite extensive genetic and biochemical characterization, the molecular genetic basis underlying the biosynthesis of β-diketones remains largely unexplored. β-Diketones and their complexes find broad applications as biologically active compounds. In this study, in silico molecular docking results revealed that two β-diketone derivatives, namely 2-(2-(4-fluorophenyl)hydrazono)-5,5-dimethylcyclohexane-1,3-dione and 5,5-dimethyl-2-(2-(2-(trifluoromethyl)phenyl)hydrazono)cyclohexane-1,3-dione, exhibit anti-COX-2 activities. However, recent docking results indicated that the relative anti-COX-2 a

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18

Mickler, Wulfhard, Anke Mönner та Erhard Uhlemann. "Electrochemical Studies of the Stability of Copper β-Diketone Chelates". Collection of Czechoslovak Chemical Communications 63, № 12 (1998): 1963–68. http://dx.doi.org/10.1135/cccc19981963.

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The voltammetric reduction of copper β-diketone chelates was used to get information on their complex stability. 1,1,1-Trifluoropentane-2,4-dione, pentane-2,4-dione, 1-phenylbutane-1,3-dione, 1,3-diphenylpropane-1,3-dione and 2,2,6,6-tetramethylheptane-3,5-dione were chosen as model ligands. The complexes were reduced in two separate steps the first of which proved to be reversible. The experimental data are suitable for calculation of the relative stability constants of corresponding Cu(I) and Cu(II) complexes. The data well correlate with the overall stability constants determined potentiome

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19

Lu, Ya Nan, Xiong Yan Zhao та Xin Wang. "Synthesis and Fluorescence Properties of a New Eu(III) Complexes with β-Diketone Ligand". Advanced Materials Research 1003 (липень 2014): 11–14. http://dx.doi.org/10.4028/www.scientific.net/amr.1003.11.

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A novel β-diketone 4-[4-(Dibenzylamino) phenyl]-2,4-dioxobutanoic (DPD) and its corresponding Eu3+ complex with 1,10-phenanthroline were synthesized. The structure, thermal behaviour and fluorescence property of the complex was characterized by Fourier Transform Infrared (FT-IR), thermal gravimetric analysis (TGA) and fluorescence spectrophotometer. The fluorescence characterization shown that the addition of β-diketone and 1,10-phenanthroline enhance the fluorescence intensity of the complex. Eu3+ complex was considered to be a valuable organic light-emitting material with bright red fluoresc

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20

Martinez, Valentina, Nikola Bedeković, Vladimir Stilinović та Dominik Cinčić. "Tautomeric Equilibrium of an Asymmetric β-Diketone in Halogen-Bonded Cocrystals with Perfluorinated Iodobenzenes". Crystals 11, № 6 (2021): 699. http://dx.doi.org/10.3390/cryst11060699.

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In order to study the effect of halogen bond on tautomerism in β-diketones in the solid-state, we have prepared a series of cocrystals derived from an asymmetric β-diketone, benzoyl-4-pyridoylmethane (b4pm), as halogen bond acceptor and perfluorinated iodobenzenes: iodopentaflourobenzene (ipfb), 1,2-, 1,3- and 1,4-diiodotetraflorobenzene (12tfib, 13tfib and 14tfib) and 1,3,5-triiodo-2,4,6-trifluorobenzene (135titfb). All five cocrystals are assembled by I···N halogen bonds involving pyridyl nitrogen and iodoperfluorobenzene iodine resulting in 1:1 (four compounds) or 1:2 (one compound) cocryst

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21

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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22

L., Krishnakumar K., Mathew Paul Ukken та Manju R. "A STUDY ON EFFECT OF INDOLE AS A SUBSTITUENT ON A KETO-ENOL TAUTOMER: A SYNTHETIC APPROACH ON β-DIKETONE". International Journal of Pharmacy and Pharmaceutical Sciences 9, № 8 (2017): 219. http://dx.doi.org/10.22159/ijpps.2017v9i8.19576.

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Objective: The existence of keto-enol tautomerism in β-diketones can typically study by a choice of analytical technique. The position of the keto-enol equilibrium depends on a number of factors like solvent, temperature, and substituents. Here an attempt was made to examine the effect of indole, a heterocyclic moiety with the moderately high polar surface area to examine its effect on ketonisation of β-diketone.Methods: The β-diketone studied and synthesized is a structural analog of magical drug curcumin. The structural influence of indole on ketonisation of β-diketone is studied to give a h

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23

Hommes, Paul, та Hans-Ulrich Reissig. "Synthesis of highly functionalized 2,2'-bipyridines by cyclocondensation of β-ketoenamides – scope and limitations". Beilstein Journal of Organic Chemistry 12 (9 червня 2016): 1170–77. http://dx.doi.org/10.3762/bjoc.12.112.

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The scope of a flexible route to unsymmetrically functionalized bipyridines is described. Starting from 1,3-diketones 1a–e, the corresponding β-ketoenamines 2a–e were converted into different β-ketoenamides 3a–g by N-acylation with 2-pyridinecarboxylic acid derivatives. These β-ketoenamides were treated with a mixture of TMSOTf and Hünig’s base to promote the cyclocondensation to 4-hydroxypyridine derivatives. Their immediate O-nonaflation employing nonafluorobutanesulfonyl fluoride provided the expected 4-nonafloxy-substituted bipyridine derivatives 5a–g in moderate to good overall yields. Th

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24

Luo, Yanhua, Biao Chen, Wenxuan Wu, Xiaowu Yu, Qing Yan та Qijin Zhang. "Judd–Ofelt treatment on luminescence of europium complexes with β-diketone and bis(β-diketone)". Journal of Luminescence 129, № 11 (2009): 1309–13. http://dx.doi.org/10.1016/j.jlumin.2009.06.016.

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25

Widenhoefer, Ross A. "Palladium-catalyzed alkylation of unactivated olefins." Pure and Applied Chemistry 76, no. 3 (2004): 671–78. http://dx.doi.org/10.1351/pac200476030671.

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The reaction of a 3-butenyl β-diketone with a catalytic amount of PdCl2(CH3CN)2 in dioxane at room temperature led to olefin hydroalkylation and formation of the corresponding 2-acylcyclohexanone in good yield as a single regioisomer. Deuterium-labeling experiments for the hydroalkylation of 7-octene-2,4-dione were in accord with a mechanism involving outer-sphere attack of the pendant enol on a palladium-complexed olefin to form a palladium cyclohexyl species, followed by palladium migration via iterative β-hydride elimination/addition and protonolysis from a palladium enolate complex. In com

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26

Lawal, Olatunde J., Johannes H. Potgieter, Caren Billing та David J. Whitefield. "The Influence of REE β-Diketone Complexes on the Corrosion Behaviour of Mild Steel and 304 SS in 3.5% NaCl Solution". Minerals 12, № 4 (2022): 416. http://dx.doi.org/10.3390/min12040416.

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In the present investigation, four REE β-diketone complexes, namely cerium acetylacetone, cerium hexafluoroacetylacetone, lanthanum acetylacetone, and lanthanum hexafluoroacetylacetone, were investigated as potential corrosion inhibitors for mild steel and 304 stainless steel in 3.5% NaCl solution. The corrosion-inhibition effects of the REE β-diketone complexes were investigated using weight-loss measurements and potentiodynamic polarisation scans. Surface analyses using optical microscopy and scanning electron microscopy (SEM) were used to investigate the morphology of the mild steel and 304

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27

Cheng, Xu, Shuchen Pei, Chenchen Xue, Kaifei Cao, Li Hai та Yong Wu. "Reactions of β-diketone compounds with nitriles catalyzed by Lewis acids: a simple approach to β-enaminone synthesis". RSC Adv. 4, № 109 (2014): 63897–900. http://dx.doi.org/10.1039/c4ra10879e.

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28

Li, Bing, Hongfeng Li, Peng Chen та ін. "Insight into the roles of structures and energy levels of mono- and bis-β-diketones on sensitizing Nd(iii) NIR-luminescence". Dalton Transactions 45, № 28 (2016): 11459–70. http://dx.doi.org/10.1039/c6dt01609j.

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29

Taniguchi, Masahiko, Richard M. Deans, Vanampally Chandrashaker, Marcin Ptaszek, and Jonathan S. Lindsey. "Scope and limitations of two model prebiotic routes to tetrapyrrole macrocycles." New Journal of Chemistry 40, no. 9 (2016): 7445–55. http://dx.doi.org/10.1039/c6nj01423b.

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30

Berezhnytska, Оleksandra, Artur Horbenko, Irina Savchenko, Oleksandr Rohovtsov, Nataliya Rusakova, and Оlena Trunova. "Investigation of Coordination Compounds of Gadolinium (III) With b-Diketones." Chemistry & Chemical Technology 17, no. 4 (2023): 748–57. http://dx.doi.org/10.23939/chcht17.04.748.

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New coordination compounds of gadolinium with -diketones containing unsaturated and aliphatic or aromatic substituents in the -positions of the chelate ring have been synthesized. The performed quantum-chemical calculations of ligand molecules indicate the best acceptor properties of ligands with aromatic substituents. An analysis of the IR spectra and quantum chemical calculations of the metal complexes indicates the bidentate-chelate coordination of the ligand molecules and their arrangement in different planes, regardless of the nature and geometric structure of the substituent in the β-d

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31

Sharma, Arti, Asha Jain та Sanjiv Saxena. "The structure-activity relationship of some hexacoordinated dimethyltin(IV) complexes of fluorinated β-diketone/β-diketones and sterically congested heterocyclic β-diketones". Applied Organometallic Chemistry 29, № 8 (2015): 499–508. http://dx.doi.org/10.1002/aoc.3321.

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32

Mahmudov, Kamran T., M. Fátima C. Guedes da Silva, Manas Sutradhar та ін. "Lanthanide derivatives comprising arylhydrazones of β-diketones: cooperative E/Z isomerization and catalytic activity in nitroaldol reaction". Dalton Transactions 44, № 12 (2015): 5602–10. http://dx.doi.org/10.1039/c4dt03788j.

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33

Gou, Jian, Shuang Liu, Yun-Juan Wang, et al. "Tetranuclear rare-earth complexes: energy barrier enhancement and two-step slow magnetic relaxation activated by ligand substitution." Inorganic Chemistry Frontiers 6, no. 3 (2019): 756–64. http://dx.doi.org/10.1039/c8qi01309h.

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34

Chen, Fei, Ning Liu, Enhui Ji та Bin Dai. "Copper/β-diketone-catalysed N-arylation of carbazoles". RSC Advances 5, № 64 (2015): 51512–23. http://dx.doi.org/10.1039/c5ra07690k.

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35

Abdel-Moez, Mohamed S., Shaker L. Stefan, Mostafa M. El-Behairy, Mohamed M. Mashely та Basheir A. El-Shetary. "Studies on complexes of VO(II), Mn(II), Cu(II), Ni(II), Co(II), Zn(II), Fe(III), and UO2(II) with hydrazone β-diketone ligands". Canadian Journal of Chemistry 68, № 5 (1990): 774–81. http://dx.doi.org/10.1139/v90-122.

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The stepwise stability constants of VO(II), Mn(II), Cu(II), Ni (II), Co(II), Zn(II), Fe(III), and UO2(II) metal ions with 2-(2-acetylphenylhydrazone)-5,5-dimethyl-1,3-cyclohexane dione (2-APHDm), 3-(2-acetylphenylhydrazone)pentane-2,4-dione (2-APHA), 2-(2-acetylphenylhydrazone)-1-phenyl-1,3-butane dione (2-APHB), 2-(2-acetylphenylhydrazone)-1,3-diphenyl-1,3-propane dione (2-APHDB), and 3-(2-acetylphenylhydrazone)-1,1,1-trifluoropentane-2,4-dione (2-APHTA) were determined at 30 °C by pH titrations in 75% (v/v) dioxane–water solvent. In addition, metal complexes of three related β-diketones, 2-A

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36

Chu, Wenyi, Qingyan Sun, Xu Yao, Pengfei Yan, Guanghui An та Guangming Li. "Luminescent single molecule magnets of a series of β-diketone dysprosium complexes". RSC Advances 5, № 115 (2015): 94802–8. http://dx.doi.org/10.1039/c5ra17358b.

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37

Brock, A. J., John C. McMurtrie та J. K. Clegg. "Self-assembly of bis-β-diketone-based [M2L2] dinuclear platforms into 2-dimensional coordination polymers". CrystEngComm 21, № 32 (2019): 4786–91. http://dx.doi.org/10.1039/c9ce00896a.

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38

Shi, Chao, Rong Nie, Xu Yao, et al. "Asymmetry-unit-dominated double slow-relaxation modes of 2,6-dimethyl-3,5-heptanedione dysprosium SMMs." RSC Adv. 7, no. 78 (2017): 49701–9. http://dx.doi.org/10.1039/c7ra09711e.

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39

Starova, Viktoriia, Mykhailo Ianchuk, Olga Zaporozhets та Anne-Marie Caminade. "Physico-chemical properties of β-diketone phosphorus-containing dendrimers". French-Ukrainian Journal of Chemistry 5, № 2 (2017): 128–35. http://dx.doi.org/10.17721/fujcv5i2p128-135.

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Protolytic, absorbance and fluorescence properties of β-diketone phosphorus-containing dendrimers based on cyclotriphosphazene core were studied. Dendrimer solutions in acetone are characterized by intense absorbance band at ≈ 340 nm (ε340≈ 8.5·104L/mol·сm) and fluorescence band with maximum at 440 nm. Position of these maxima does not change in various solvents, unlike the bands of monomer β-diketone. It was found that dendrimer aggregation is accompanied by appearance of a second absorbance band ε400≈ 4.5·103L/mol·сm, by red shift of emission spectra ∆λ ≈ 10 nm and also by decrease in surfac

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40

Verma, Pramod Kumar, Andreas Steinbacher, Federico Koch, Patrick Nuernberger та Tobias Brixner. "Monitoring ultrafast intramolecular proton transfer processes in an unsymmetric β-diketone". Physical Chemistry Chemical Physics 17, № 13 (2015): 8459–66. http://dx.doi.org/10.1039/c4cp05811a.

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41

Atanassova, Maria, and Vanya Kurteva. "Synergism as a phenomenon in solvent extraction of 4f-elements with calixarenes." RSC Advances 6, no. 14 (2016): 11303–24. http://dx.doi.org/10.1039/c5ra22306g.

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42

Wang, Shi-Yu, Wen-Min Wang, Hong-Xia Zhang та ін. "Seven phenoxido-bridged complexes encapsulated by 8-hydroxyquinoline Schiff base derivatives and β-diketone ligands: single-molecule magnet, magnetic refrigeration and luminescence properties". Dalton Transactions 45, № 8 (2016): 3362–71. http://dx.doi.org/10.1039/c5dt04391c.

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43

Deans, Richard M., Vanampally Chandrashaker, Masahiko Taniguchi, and Jonathan S. Lindsey. "Complexity in structure-directed prebiotic chemistry. Effect of a defective competing reactant in tetrapyrrole formation." New Journal of Chemistry 39, no. 11 (2015): 8273–81. http://dx.doi.org/10.1039/c5nj01474c.

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44

Albrecht, Christian, Christoph Wagner та Dirk Steinborn. "Zur Reaktivität von dinuklearen Platina-β-diketonen gegenüber Phosphanen: Diacetylplatin(II)-Komplexe und mononukleare Platina-β-diketone". Zeitschrift für anorganische und allgemeine Chemie 634, № 15 (2008): 2858–66. http://dx.doi.org/10.1002/zaac.200800317.

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45

Xie, Tongqing, Baicheng Zhang, Xuepeng Zhang та Guoqing Zhang. "AIE-active β-diketones containing pyridiniums: fluorogenic binding to cellulose and water-vapour-recoverable mechanochromic luminescence". Materials Chemistry Frontiers 1, № 4 (2017): 693–96. http://dx.doi.org/10.1039/c6qm00187d.

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Combined properties including aggregation-induced emission, fluorogenic binding to cellulose and water-vapour-recoverable mechanochromic luminescence were found on facilely synthesized β-diketone pyridiniums.

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Mamiya, Michitaka, Yurie Suwa, Hideki Okamoto та Minoru Yamaji. "Photochemically-assisted synthesis and photophysical properties of difluoroboronated β-diketones with fused four-benzene-ring chromophores, chrysene and pyrene". Photochemical & Photobiological Sciences 15, № 7 (2016): 928–36. http://dx.doi.org/10.1039/c6pp00089d.

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47

Hu, Thomas Q., and Larry Weiler. "Binding and transport of calcium ions by synthetic analogues of ionomycin." Canadian Journal of Chemistry 72, no. 6 (1994): 1512–24. http://dx.doi.org/10.1139/v94-188.

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The transport of calcium ions across an organic barrier by a series of synthetic analogues of ionomycin was measured in a cylindrical glass cell using chloroform as the artificial membrane. The presence of a β-diketone and carboxyl group in the same molecule and a sufficient lipid solubility of the compounds were shown to be necessary and sufficient conditions for Ca2+ transport. Small and no transport of Ca2+ were found for analogues 5 and 6, respectively, due to the low lipid solubility of these compounds. The Ca2+ transport rate for analogues 8 and 13−15 followed the order of 8 > 13 >

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48

Zhao, Wei Guang, Zheng Ming Li, and De Kai Yuan. "A Novel and Facile synthesis of Pyrazolo [3,4-b]Pyridines." Journal of Chemical Research 2002, no. 9 (2002): 454–55. http://dx.doi.org/10.3184/030823402103172635.

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Pyrazolo[3,4- b]pyridines have been obtained by the condensation of 5-amino-4-cyanopyrazole, readily available by the reaction of dithioacetals with substituted hydrazines, with β-ketoesters or β-diketone in the presence of tin(IV) chloride at reflux temperature in dry toluene.

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Yang, Rui-Na, Dong-Mei Wang, Ying-Fan Liu та Dou-Man Jin. "Synthesis of copper(I) β-diketone complexes". Polyhedron 20, № 7-8 (2001): 585–90. http://dx.doi.org/10.1016/s0277-5387(01)00715-x.

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Uhlemann, Erhard, Helga Motzny та Gisela Wilke. "Polyhalogenierte aromatische β-Diketone und ihre Vorstufen". Zeitschrift für Chemie 11, № 1 (2010): 13–14. http://dx.doi.org/10.1002/zfch.19710110109.

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