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Journal articles on the topic 'Ethyl acetoacetate'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Mijin, Dusan, Gordana Uscumlic, and Natasa Valentic. "Synthesis and investigation of solvent effects on the ultraviolet absorption spectra of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones." Journal of the Serbian Chemical Society 66, no. 8 (2001): 507–16. http://dx.doi.org/10.2298/jsc0108507m.

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A number of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones from cyanoacetamide and the corresponding alkyl ethyl acetoacetates were synthesized according to modified literature procedures. The alkyl ethyl acetoacetates were obtained by the reaction of C-alkylation of ethyl acetoacetate. An investigation of the reaction conditions for the synthesis of 4-methyl-3-cyano-6-hydroxy-2-pyridone from cyanoacetamide and ethyl acetoacetate in eight different solvents was also performed. The ultraviolet absorption spectra of synthesized pyridones were measured in nine different solvents in the rang

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2

Ji, Hong, Tao Dai, Mu Yuan, Liu Zhu та Biyun Huang. "Synthesis of α-Alkyltetronic Acids". Advanced Materials Research 554-556 (липень 2012): 1861–64. http://dx.doi.org/10.4028/www.scientific.net/amr.554-556.1861.

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Tetronic acid, namely 4-hydroxy-2(5H)-furanone, was prepared from ethyl acetoacetate by bromination at γ position followed by hydrolysis and cyclization in aqueous NaOH solution. Using ethyl α-alkylacetoacetate afforded by alkylation of ethyl acetoacetate as starting material, four α-alkyltetronic acids were synthesized. Optimization of the reaction conditions led to total yield of more than 64%.

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3

Tamaddon, Fatemeh, and Ali Khorram. "Advanced Catalyst-Free Pseudo-Six-Component Synthesis of Tetrahydrodipyrazolopyridines in Water by Using Ammonium Carbonate as an Ecofriendly Source of Nitrogen." Synlett 31, no. 07 (2020): 691–94. http://dx.doi.org/10.1055/s-0039-1691600.

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This work describes an improved environmentally friendly method for the synthesis of tetrahydrodipyrazolopyridines (THDPPs) in water through a catalyst-free pseudo-six-component reaction of alkyl acetoacetates, hydrazine hydrate, and ammonium carbonate with an aldehyde in a mole ratio of 2:2:1:1 at room temperature. The ammonium carbonate serves as a green source of nitrogen for the central 1,4-dihydropyridine ring in the THDPPs. Methyl acetoacetate reacts faster than either ethyl or propyl acetoacetate in this method. The product precipitates during the reaction and is simply collected by fil

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4

Kada, Rudolf, Dušan Ilavský, Jarmila Štetinová, Lubomír Zalibera, and Jiří Paďour. "Synthesis, Reactions and Spectral Properties of Ethyl Esters of 2-Cyano-3-(5-X-2-furyl)acrylic Acid." Collection of Czechoslovak Chemical Communications 59, no. 2 (1994): 444–52. http://dx.doi.org/10.1135/cccc19940444.

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The reaction of 5-X-2-furaldehydes (X = C6H5, COOCH3, COOC2H5, C6H5O, C6H5S, CH3S, 4-Cl-C6H4S, CH3SO2, C6H5SO2, 4-Cl-C6H4SO2) with ethyl cyanoacetate in dry ethanol catalyzed by sodium ethoxide yielded the corresponding ethyl 2-cyano-3-(5-X-2-furyl)acrylates. It was found that the reactions of these esters with cyanoacetophenone or ethyl acetoacetate do not afford the corresponding 4H-pyran derivatives but that there proceeds the exchange of ethyl acetoacetate or of ethyl cyanoacetate for the cyanoacetophenone carbanion. The same course has been observed also for the reactions of these substra

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5

Deepa, Geeta D. Yadav, Mohd J. Aalam, Pooja Chaudhary, and Surendra Singh. "Synthesis of Dihydropyrimidinones (DHPMs) and Hexahydro Xanthene Catalyzed by 1,4-Diazabicyclo [2.2.2] Octane Triflate Under Solvent-Free Condition." Current Organic Synthesis 16, no. 5 (2019): 776–86. http://dx.doi.org/10.2174/1570179415666181113154232.

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Objective:DABCO salts were evaluated as catalysts for the Biginelli reaction between 4- methoxybenzaldehyde, urea and ethyl acetoacetate under solvent-free conditions. 1,4-Diazabicyclo [2.2.2] octane triflate was found to be a simple, inexpensive, highly efficient catalyst for Biginelli reaction for a variety aromatic aldehyde with urea and ethyl acetoacetate at 80°C afforded corresponding 3,4-dihydropyrimidinones in 50-99% yields after 30-120 minutes. 1,3-Cyclohexadione was used in place of ethyl acetoacetate in the absence of urea this methodology is giving hexahydro xanthene derivatives in

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6

Horne, S. M., M. Schroeder, J. Murphy, and B. M. Prüβ. "Acetoacetate and ethyl acetoacetate as novel inhibitors of bacterial biofilm." Letters in Applied Microbiology 66, no. 4 (2018): 329–39. http://dx.doi.org/10.1111/lam.12852.

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7

Yusuff, Adeyinka Sikiru, Yanlong Gu, Elyor Berdimurodov та Ilyos Eliboev. "Metal-bipyridine supported on 3-aminopropyl-functionalized MK10: effect of a metalating agent on the catalytic activity in the transesterification of β-keto ester". RSC Advances 14, № 39 (2024): 28308–19. http://dx.doi.org/10.1039/d4ra04834b.

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This article reports the utilization of an efficient and reusable MK10-based inorganic–organic hybrid metal catalyst for the transesterification of β-keto ethyl acetoacetate (EAA) with butanol (BTL) to produce butyl acetoacetate (BAT).

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8

Ribeiro, Joyce Benzaquem, Maria da Conceição Klaus V. Ramos, F. R. de Aquino Neto, Selma Gomes Ferreira Leite, and O. A. C. Antunes. "Microbiological enantioselective reduction of ethyl acetoacetate." Journal of Molecular Catalysis B: Enzymatic 24-25 (October 2003): 121–24. http://dx.doi.org/10.1016/s1381-1177(03)00111-5.

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9

Aghaei-Hashjin, Mehraneh, Asieh Yahyazadeh, and Esmayeel Abbaspour-Gilandeh. "Mo@GAA-Fe3O4 MNPs: a highly efficient and environmentally friendly heterogeneous magnetic nanocatalyst for the synthesis of polyhydroquinoline derivatives." RSC Advances 11, no. 18 (2021): 10497–511. http://dx.doi.org/10.1039/d1ra00396h.

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Polyhydroquinolines were obtained from a sequential four-component reaction between dimedone or 1,3-cyclohexandione, ethyl acetoacetate, or methyl acetoacetate as a β-ketoester, aldehydes, and ammonium acetate, with Mo@GAA-Fe3O<sub>4</sub> MNPs as a green nanocatalyst.

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10

Liu, Shu Jing, Yun Peng Li, Xiu Min Yang, and Qing Mei Jiang. "Synthesis of 7-hydroxy-4-methyl Coumarin with Microwave Radiation Catalyzed by Zirconium Sulfate Tetrahydrate." Advanced Materials Research 671-674 (March 2013): 2692–96. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.2692.

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The 1,3-benzenediol and ethyl acetoacetate as raw materials were used to synthesize 7-hydroxy-4-methyl coumarin under microwave irradiation with Zirconium sulfate tetrahydrate as the catalyst. The effect of various reaction conditionson on the yield was explored.Experiment shows that the yield reached up to 87. 5%,when the reaction conditions are as follow:n(1,3-benzenediol):n(ethyl acetoacetate)1.0, Zirconium sulfate tetrahydrate 0.4g,10mL cyclohexane, the reaction time 12 min,microwave radiation power 500W.

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11

Lim, Boram, Huisu Yeo, Seunghyo Han, Dabin Kim, Hansuk Lee, and Sangho Koo. "Regioselective De Novo Synthesis of Phenolic Isoprenoids Grifolin and Neogrifolin." Applied Sciences 15, no. 3 (2025): 1438. https://doi.org/10.3390/app15031438.

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The total synthesis of biologically and pharmacologically important phenolic isoprenoids, grifolin and neogrifolin, was developed through simple allylation and cyclization procedures using only ethyl acetoacetate, ethyl crotonate, and farnesyl bromide as substrates. The regioisomeric terpenophenols, which consist solely of orcinol and farnesyl moieties, cannot be synthesized purely by direct coupling between the units. The regioselectivity issue was solved by controlling the timing of the allylation of β-ketoester with farnesyl bromide and the cyclization with ethyl crotonate. 2-Farnesyl-5-met

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12

Chen, Geng Hua, Sen Xiang Zhang, Qiao Hu, et al. "Asymmetric Reduction of Prochiral Ketones to Chiral Alcohol by Photo-Biocatalysis with Microalgae." Advanced Materials Research 803 (September 2013): 60–63. http://dx.doi.org/10.4028/www.scientific.net/amr.803.60.

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The photo-biocatalytic ability of eukaryotic microalgae and prokaryotic microalgae on nonnatural prochiral ketones to produce chiral alcohols was studied in this paper. The results proved that ethyl acetoacetate and acetophenone can be stereo-selectively reduced to the corresponding ethyl S-3-hydroxybutyrate (EHB) and S-1-phenylethanol (PEA) by microalgal photo-biocatalysis with high enantioselectivity, respectively. Scenedesmus obliquus has the best photo-biocatalytic activity to ethyl acetoacetate reduction reaction among the two selected eukaryotic microalgae, about 43.98% yield and 69.58%

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13

Tomokuni, K., and Y. Hirai. "Factors affecting determination of delta-aminolevulinate by use of Ehrlich's reagent." Clinical Chemistry 32, no. 1 (1986): 192–93. http://dx.doi.org/10.1093/clinchem/32.1.192.

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Abstract We investigated the formation of delta-aminolevulinic acid (ALA)-pyrrole and subsequent color development used in determining ALA in urine. Of three condensation reagents examined--acetylacetone, ethyl acetoacetate, and methyl acetoacetate--the last was the best. When the ALA-pyrrole is reacted with Ehrlich's reagent in ethyl acetate according to one procedure, the optimum concentration of perchloric acid in the reagent is 0.5 to 1.0 mol/L. Its optimum concentration is 1.0 to 2.3 mol/L when the reaction takes place in water.

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14

Shi, Laishun, Jian Gao, and Jingjing Chen. "Modeling study for oscillatory reaction of chlorite – iodide – ethyl acetoacetate." Canadian Journal of Chemistry 92, no. 5 (2014): 417–25. http://dx.doi.org/10.1139/cjc-2014-0072.

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Chlorine dioxide based chemical oscillating behavior was modeled by a simple scheme consisting of three component reactions. Furthermore, little is known about the influence of the pH value. In this study, four component reactions were used to model the chlorite – iodide – ethyl acetoacetate oscillating reaction by dynamic analysis software. The oscillatory phenomenon is observed for concentration changes of triiodide ion, chlorite ion, and hydrogen ion. The initial concentration of ethyl acetoacetate, chlorite ion, iodide ion, and hydrogen ion has great influence on oscillations. The amplitud

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15

Dương, Công-Thắng, and Xuan Thi Thi Luu. "The ultrasound accelerated solvent-free synthesis of ethyl 7-methyl-5-phenyl-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate through Biginelli reaction catalyzed by Amberlyst-15." Science and Technology Development Journal - Natural Sciences 4, no. 3 (2020): First. http://dx.doi.org/10.32508/stdjns.v4i3.868.

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Multi-component reactions (MCRs) played an important role to produce complex molecular structures in a one-step process. Among all MCRs reported, Biginelli reaction was one of the most well-known and used in organic synthesis to constitute pyrimidine scaffolds. Therefore, a solvent-free Biginelli reaction of 2-aminothiazole, benzaldehyde and ethyl acetoacetate catalyzed by Amberlyst-15 (A-15) had attracted us to pay attention and to do research in order to highly obtain a desired product, a frame of thiazolo[3,2-a]pyrimidine being present in many active biological compounds. Amberlyst-15, poly

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16

Sališová, Marta, Ľubomír Šebo, Štefan Toma, and Eva Solčániová. "Study of the Reactivity of 2-Benzylidene[3]ferrocenophane-1,3-dione with Ethyl Acetoacetate and Some Other C-Nucleophiles." Collection of Czechoslovak Chemical Communications 58, no. 9 (1993): 2128–38. http://dx.doi.org/10.1135/cccc19932128.

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Michael addition of C-nucleophiles to 2-benzylidine[3]ferrocenophane-1,3-dione has been studied. In some cases, (ethyl acetoacetate, acetylacetone and malononitrile as the C-nucleophiles) the addition was followed by intramolecular cyclization leading to pyran derivatives. Addition of malononitrile gave the pyran derivative as a sole product. The Michael adducts of ethyl acetoacetate and acetylacetone can be converted to [7]ferrocenophane-1,7-dione derivatives by refluxing in benzene with triethylamine as catalyst. they also easily react with ammonia, under SiO2 catalysis, to give Hantzsch dih

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17

R., C. SHAH, M. SETHNA S., CHARAN BANERJEE BHAWANI та CHAKARAVATI. DUHKHAHAR.AN. "PECHMANN'S CONDENSATION OF METHYL β-RESORCYLATE AND , β-RESORCYLIC ACID WITH ETHYL ACETOACETATE." Journal of Indian Chemical Society Vol. 14, Jan-Dec 1937 (2022): 717–20. https://doi.org/10.5281/zenodo.6641077.

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18

Nangia, A., B. Madhusudan Rao, and G. Prasuna. "Facile Synthesis of Anhydromevalonolactone from Ethyl Acetoacetate." Synthetic Communications 22, no. 4 (1992): 593–602. http://dx.doi.org/10.1080/00397919208019258.

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19

Zhu, Ying-Hong, Chun-An Ma, and Ying-Hua Xu. "Ethyl 5-methyl-2,2-diphenylcyclopropanespiro-3(4H)-furan-4-carboxylate." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (2006): o2795—o2796. http://dx.doi.org/10.1107/s1600536806019982.

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20

Ju, Yeming, Di Miao, Ruiyang Yu, and Sangho Koo. "Tandem catalytic oxidative deacetylation of acetoacetic esters and heteroaromatic cyclizations." Organic & Biomolecular Chemistry 13, no. 9 (2015): 2588–99. http://dx.doi.org/10.1039/c4ob02441a.

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21

Yu, Hui Qun, You Bin Mo, Yan Fang Liao, Hai Zhou, and Zhi Peng He. "Process Research of 1-(3,4-Dichloropheny)-3-Methyl-Pyrazolone-5-one Synthesis." Advanced Materials Research 450-451 (January 2012): 223–27. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.223.

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The new process of 1-(3,4-dichloropheny)-3-methyl-pyrazolone-5-one (34DCPMP) synthesis had been discovered, which using 3,4-dichloro phenylhydrazine hydrochloride(DCPH) and ethyl acetoacetate as the raw material , The product was obtained by the route during cyclization in aqueous medium. The structure of products was confirmed by 1HNMR, 13CNMR and IR. The effects of factors on the yield of products were investigated. It was found that the yield of 34DCPMP can reach 98.7% under the optimal reaction condition of n(34DCPH):n(ethyl acetoacetate) with 1:1.1, n(34DCPH):n(Na2SO3) with 1.3:1 at 80°C,

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22

Amit, P. Tayade, P. Pawar Ramkrushna, V. Khobare Rajiv, B. Mane Chandakant, and P. Tayde Nitin. "ALUM AN EFFICIENT CATALYST FOR SYNTHESIS OF 4-ARYL-3-METHYLISOXAZOLE-5(4H)-ONE DERIVATIVES." International Journal of Advanced Trends in Engineering and Technology (IJATET) 4, no. 2 (2020): 49–51. https://doi.org/10.5281/zenodo.3597044.

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23

Zonouz, Adeleh Moshtaghi, and Nahid Sahranavard. "Synthesis of 1,4-Dihydropyridine Derivatives Under Aqueous Media." E-Journal of Chemistry 7, s1 (2010): S372—S376. http://dx.doi.org/10.1155/2010/792730.

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24

Rai, K. M. Lokanatha, K. B. Umesha, and M. A. Harish Nayaka. "Antioxidant and Antimicrobial Activity of 5-methyl-2-(5-methyl-1,3-diphenyl-1H-pyrazole-4-carbonyl)-2,4-dihydro-pyrazol-3-one." International Journal of Biomedical Science 5, no. 4 (2009): 359–68. http://dx.doi.org/10.59566/ijbs.2009.5359.

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Cycloaddition of nitrile imines 4 generated in situ by the catalytic dehydrogenation of diphenyl hydrazones 3 using Chloramine-T (CAT) as oxidant in glacial acetic acid with enolic form of ethyl acetoacetate 5 afforded Ethyl 3-aryl-5-methyl-1-phenyl-1H-pyrazol-4-carboxylate 6 in 80% yield. The said pyrazoles 6 refluxed with 80% hydrazine hydrate using absolute alcohol as solvent for about 2-3 hours to produce the respective 5-methyl-1,3-diphenyl-1H-pyrazole-4-carboxylic acid hydrazide 7. The alcoholic solution of pyrazole acid hydrazides on heating with ethyl acetoacetate 5 to give the 5-methy

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25

Reihani, Neda, and Hamzeh Kiyani. "Three-component Synthesis of 4-Arylidene-3-alkylisoxazol-5(4H)-ones in the Presence of Potassium 2,5-dioxoimidazolidin-1-ide." Current Organic Chemistry 25, no. 8 (2021): 950–62. http://dx.doi.org/10.2174/1385272825666210212120517.

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An efficient synthesis of 4-arylidene-3-alkylisoxazole-5(4H)-ones has been implemented via the three-component cyclocondensation of aryl(heteroaryl)aldehydes with hydroxylamine hydrochloride and β-ketoesters. The potassium 2,5-dioxoimidazolidin-1-ide has been introduced as the new organocatalyst to facilitate this heterocyclization. In the current process, three starting materials, including substituted benzaldehydes/heterocyclic aromatic aldehydes, hydroxylamine hydrochloride, and ethyl acetoacetate/propyl acetoacetate/butyryl acetoacetate have been successfully used to synthesize the number

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26

Lee, Hyun-Seok, Pradnya N. P. Ghoderao, Min Soo Park, and Hun-Soo Byun. "Phase equilibria for the two-component systems of allyl acetoacetate, methyl acetoacetate and ethyl acetoacetate under high-pressure CO2." Journal of Molecular Liquids 387 (October 2023): 122651. http://dx.doi.org/10.1016/j.molliq.2023.122651.

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27

Barbry, Didier, Catherine Faven, and Aziz Ajana. "IMPROVED ALKYLATION OF ETHYL ACETOACETATE AND DIETHYL MALONATE." Organic Preparations and Procedures International 26, no. 4 (1994): 469–71. http://dx.doi.org/10.1080/00304949409458038.

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28

Wakharkar, R. D., B. Chanda, and A. H. Lachke. "Microbial reduction of ethyl acetoacetate using Sclerotium rolfsii." Biotechnology Letters 11, no. 7 (1989): 483–86. http://dx.doi.org/10.1007/bf01026646.

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29

Ilyushin, V. A., and V. G. Malaev. "Electrochemical chlorination of ethyl acetoacetate and the formation of ethyl 2,2,4-trichloroacetoacetate." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 37, no. 4 (1988): 756–57. http://dx.doi.org/10.1007/bf01455494.

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30

Yaswanthi, P., L. Nagakiran, and Dr N.KrishnaRao. "One Pot Synthesis of Dihydropyrano (2,3-c) pyrazoles Catalyzed by Bronsted Acid." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 04 (2025): 1–9. https://doi.org/10.55041/ijsrem44050.

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An efficient and versatile multicomponent procedure for the synthesis dihydropyrano (2, 3-c) pyrazole derivatives promoted by Bronsted Acid as a catalyst is PTSA in protic solvent and These derivatives can be obtained series of dihydropyrano (2,3-c)pyrazoles from ethyl acetoacetate, hydrazine hydrochloride, malononitrile, and aromatic aldehydes in the presence of PTSA. This method was is used for environmentally friendly multicomponent cyclocondensation methods which have a series of intriguing advantages , including the use of a nontoxic solvent, inexpensive and readily available catalyst, si

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31

Sadeghi, Bahareh, Ashraf Namakkoubi, and Alireza Hassanabadi. "BF3.SiO2 Nanoparticles: A Solid Phase Acidic Catalyst for Efficient One-pot Hantzsch Synthesis of 1,4-dihydropyridines." Journal of Chemical Research 37, no. 1 (2013): 11–13. http://dx.doi.org/10.3184/174751912x13542975429543.

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The solvent-free Hantzsch reaction between ethyl acetoacetate or 1,3-indandione, an aromatic aldehyde and ammonium acetate catalysed by BF3.SiO2 nanoparticles provided an efficient one-step synthesis of 1,4-dihydropyridines in excellent yields.

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32

Li, Xiao-Tang, Ai-Dong Zhao, Li-Ping Mo, and Zhan-Hui Zhang. "Meglumine catalyzed expeditious four-component domino protocol for synthesis of pyrazolopyranopyrimidines in aqueous medium." RSC Adv. 4, no. 93 (2014): 51580–88. http://dx.doi.org/10.1039/c4ra08689a.

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Meglumine has been found to be an efficient catalyst for the synthesis of structurally diverse tricyclic fused pyrazolopyranopyrimidines by one-pot, four-component reaction of ethyl acetoacetate, hydrazine hydrate, aromatic aldehydes and barbituric acid in water.

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33

Osborne, Alan G., Steven J. Andrews, and Rachel Mower. "Further studies of Orientation Effects in the Pechmann synthesis of Coumarins." Journal of Chemical Research 2003, no. 3 (2003): 114–15. http://dx.doi.org/10.3184/030823403103173327.

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The proportion of 5-/7- substituted coumarins formed in the Pechmann synthesis from meta-substituted phenols and malic acid and ethyl acetoacetate under a variety of reaction conditions, with product analysis by 1H and 13C NMR spectroscopy, is reported.

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34

Marković, S., J. Đurđević, M. Vukosavljević, and Z. Petrović. "Mechanistic insight into alkylation of the ethyl acetoacetate anion with different ethyl halides." Russian Journal of Physical Chemistry A 87, no. 13 (2013): 2207–13. http://dx.doi.org/10.1134/s0036024413130165.

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35

Khan, Salman A., Abdullah M. Asiri, and Saad H. Al-Thaqafy. "Optical properties and fluorescence quenching of biologically active ethyl 4-(4-N,N-dimethylamino phenyl)-2-methyl-5-oxo-4,5-dihydro-1H-indeno[1,2-b]pyridine-3-carboxylate (DDPC) dye as a probe to determine CMC of surfactants." RSC Advances 6, no. 104 (2016): 102218–25. http://dx.doi.org/10.1039/c6ra02814d.

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4-(4-N,N-Dimethylamino phenyl)-2-methyl-5-oxo-4,5-dihydro-1H-indeno[1,2-b]pyridine-3-carboxylate (DDPC) was prepared via the multi-component reaction of indane-1,3-dione with 4-(dimethylamino)benzaldehyde, ethyl acetoacetate and ammonium acetate.

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36

Hütter, Peter, and Klaus-Peter Zeller. "Eine einfache Methode zur Herstellung13 C-markierter Ethyl-acetoacetate." Synthesis 1985, no. 03 (1985): 334–35. http://dx.doi.org/10.1055/s-1985-31203.

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37

Latypova, D. R., A. G. Badamshin, A. N. Lobov, and V. A. Dokichev. "Reaction of ethyl acetoacetate with formaldehyde and primary amines." Russian Journal of Organic Chemistry 49, no. 6 (2013): 843–48. http://dx.doi.org/10.1134/s1070428013060079.

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38

Lamouille, Thierry, Christine Saluzzo, Rob ter Halle, Fredéric Le Guyader, and Marc Lemaire. "Hydrogenation of ethyl acetoacetate catalyzed by hydrosoluble BINAP derivatives." Tetrahedron Letters 42, no. 4 (2001): 663–64. http://dx.doi.org/10.1016/s0040-4039(00)02035-9.

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39

Marković, S., Lj Mitrović, J. Đurđević, J. Tošović, and Z. Petrović. "Alkylation of potassium ethyl acetoacetate: HSAB versus Marcus theory." Computational and Theoretical Chemistry 1066 (August 2015): 14–19. http://dx.doi.org/10.1016/j.comptc.2015.05.005.

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40

Kislyi, V. P., M. A. Kurykin, V. A. Grinberg, N. D. Kagramanov, and V. V. Semenov. "Anodic perfluoroalkylation of the enol acetate of ethyl acetoacetate." Russian Chemical Bulletin 45, no. 12 (1996): 2800–2803. http://dx.doi.org/10.1007/bf01430645.

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41

Baturova, M. D., T. I. Kuznetsova, A. A. Vedenyapin, and E. I. Klabunovskii. "Electrohydrogenation of ethyl acetoacetate on a modified nickel catalyst." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 36, no. 12 (1987): 2478–80. http://dx.doi.org/10.1007/bf00957214.

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42

Kurajica, S., J. Popović, T. Gazivoda Kraljević, et al. "A structural investigation of tris(ethyl acetoacetate)aluminium (III)." Journal of Sol-Gel Science and Technology 71, no. 2 (2014): 217–23. http://dx.doi.org/10.1007/s10971-014-3345-1.

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43

KISLYI, V. P., M. A. KURYKIN, V. A. GRINBERG, N. D. KAGRAMANOV, and V. V. SEMENOV. "ChemInform Abstract: Anodic Perfluoroalkylation of Enolacetate of Ethyl Acetoacetate." ChemInform 28, no. 23 (2010): no. http://dx.doi.org/10.1002/chin.199723074.

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NANGIA, A., B. M. RAO, and G. PRASUNA. "ChemInform Abstract: Facile Synthesis of Anhydromevalonolactone from Ethyl Acetoacetate." ChemInform 23, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.199230156.

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45

Damodar, Kongara, and Jong-Gab Jun. "An Expeditious Stereoselective Synthesis of (−)-Pinidinone from Ethyl Acetoacetate." Bulletin of the Korean Chemical Society 37, no. 4 (2016): 571–75. http://dx.doi.org/10.1002/bkcs.10728.

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46

Andin, A. N., and A. V. Kukharev. "Four-component condesation of ethyl acetoacetate, phenylglyoxal hydrate, barbituric acid and primary amines." Журнал органической химии 59, no. 8 (2023): 1050–56. http://dx.doi.org/10.31857/s0514749223080062.

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By four-component condensation of ethyl acetoacetate, phenylglyoxal hydrate, barbituric acid and primary amines, polysubstituted pyrroles containing a barbituric acid fragment were obtained. In some cases, minor products of three-component condensation of phenylglyoxal hydrate, barbituric acid and amines have been isolated.

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47

Martin, Arputharaj E., and Karnam J. Rajendra Prasad. "Synthetic Utility of 1-Hydroxycarbazole-2-carbaldehydes - Syntheses of Furo-, Oxazino- and Pyranocarbazoles." Collection of Czechoslovak Chemical Communications 72, no. 11 (2007): 1579–90. http://dx.doi.org/10.1135/cccc20071579.

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Reaction of 1-hydroxycarbazole-2-carbaldehydes 1 with phenacyl bromide yielded 2-benzoyl-10H-furo[2,3-a]carbazoles 2, whereas the reaction with ethyl bromoacetate yielded 1-oxo-1,2-dihydro[1,4]oxazino[2,3,4-jk]carbazole-4-carbaldehyde (4). The reaction of 1 with ethyl acetoacetate and also with diethyl malonate yielded the pyranocarbazoles 6 and 7, respectively. All the products were characterized by spectral and analytical means. Plausible mechanisms of product formation are proposed.

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Fatma A M Mohamed, Fatma A. M. Mohamed, Bi Bi Zainab Mazhari Bi Bi Zainab Mazhari, Mona F. Warrad Mona F Warrad, Hesham A. M. Gomaa Hesham A M Gomaa, Asmaa T. Ali Asmaa T Ali, and Shaimaa Salah Eldeen Hussein and Hendawy Om Shaimaa Salah Eldeen Hussein and Hendawy Om. "Synthesis, Characterization, Antimicrobial and Anticarcinogenic Activity of Quinazoline Derivatives." Journal of the chemical society of pakistan 45, no. 3 (2023): 256. http://dx.doi.org/10.52568/001246/jcsp/45.03.2023.

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The reaction of β-dicarbonyl compounds as ethyl acetoacetate with hydrazines is a well-established route for the creation of pyrazole derivatives. In this research, 4-hydrazinoquinazoline (4) reacted with ethyl acetoacetate in boiling ethanol it gives ethyl 3-oxobutanoate quinazolin-4-yl-hydrazone (5). Cyclization of the compound (5) in the presence of glacial acetic acid is passed to form 4-(5-hydroxy-3-methyl-1H-pyrazol-1-yl)quinazoline(6). Furthermore, the reaction of phenylisothiocyanate compounds with hydrazines is a well-established way for the synthesis of tetrazinoquinazoline (8). The

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Folkendt, Michael M., Boris E. Weiss-Lopez, J. Paul Chauvel, and Nancy S. True. "Gas-phase proton NMR studies of keto-enol tautomerism of acetylacetone, methyl acetoacetate, and ethyl acetoacetate." Journal of Physical Chemistry 89, no. 15 (1985): 3347–52. http://dx.doi.org/10.1021/j100261a038.

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Khazaei, Marziyeh, Mohammad Anary-Abbasinejad, Alireza Hassanabadi, and Bahareh Sadeghi. "ZnO Nanoparticles: An Efficient Reagent, Simple and One-Pot Procedure for Synthesis of Highly Functionalized Dihydropyridine Derivatives." E-Journal of Chemistry 9, no. 2 (2012): 615–20. http://dx.doi.org/10.1155/2012/780470.

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A new and efficient one-pot synthesis of dihydropyridones derivatives by four-component reaction between cyanoacetamide, aryl aldehydes, and ethyl acetoacetate with ammonium acetate using nano ZnO is described. The reaction was performed in ethanol under reflux conditions and afforded good yields of products.

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