Relevant bibliographies by topics / 4-pentanedione

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Academic literature on the topic '4-pentanedione'

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

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Journal articles on the topic "4-pentanedione"

1

Hunter, Duncan H., Chantelle McRoberts, and Jagadese J. Vittal. "Article." Canadian Journal of Chemistry 76, no. 5 (1998): 522–24. http://dx.doi.org/10.1139/v98-066.

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Attempts to prepare 2,4-bisthiosemicarbamoylpentanediones 1 via literature precedent from 2,4-pentanedione and three different thiosemicarbazides resulted instead in the formation of cyclic pyrazolines 5. The preparation was attempted with thiosemicarbazide, 4-methylthiosemicarbazide, and 4-ethylthiosemicarbazide, respectively. A single-crystal X-ray structure study of the product from 4-methylthiosemicarbazide confirmed the pyrazoline structure. This observation serves to correct earlier misassignments of structure.Key words: pentanedione, bisthiosemicarbazone, pyrazoline, ethylenediamine.
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Marchalín, Štefan, Dušan Ilavský, Jaroslav Kováč, and Milan Bruncko. "Synthesis and reactions of 5-acetyl-2-amino-3-cyano-4-(5-X-2-furyl)-6-methyl-4H-pyrans." Collection of Czechoslovak Chemical Communications 55, no. 3 (1990): 718–27. http://dx.doi.org/10.1135/cccc19900718.

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Substituted 2-amino-4-(5-X-2-furyl)-4H-pyrans IIIa-IIIe have been prepared by a cyclization reaction of 5-X-2-furylmethylenepropanedinitriles IIa-IIe with 2,4-pentanedione. In reaction of 3-(5-X-2-furyl)-methylene-2,4-pentanediones Ia-Ie with propanedinitrile the formation of 4H-pyrans IIIa-IIIe is accompanied, depending on the catalyst type, by the formation of 5-X-2-furylmethylenepropanedinitriles IIa-IIe. 2-(4-Methylbenzylideneamino)-4H-pyran (V), 2-formylamino-4H-pyran (VI), and 3H, 5H-pyrano[2,3-d]pyrimidine-4-one (VII) have been synthesized by functional modifications of the amino group
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3

Aakeröy, Christer B., Izhar Hussain, Safiyyah Forbes, and John Desper. "Versatile Ligands for the Construction of Layered Metal-Containing Networks." Australian Journal of Chemistry 62, no. 8 (2009): 899. http://dx.doi.org/10.1071/ch08440.

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The synthetic opportunities furnished by organic synthesis and the inherent structure-directing possibilities of coordination complexes have been combined in the assembly of a series of layered metal-containing hybrid materials. The supramolecular assembly relies on self-complementary non-covalent interactions, and in five of the six structures presented herein, N–H···O=C hydrogen bonds between acetamide moieties on neighbouring ligands provide the primary structure-direction tool as intended. The distances between metal ions are controlled by ligand···ligand hydrogen bonds and reside within a
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4

Prlainovic, Nevena, Dejan Bezbradica, Zorica Knezevic-Jugovic, Dusan Velickovic, and Dusan Mijin. "Enzymatic synthesis of vitamin B6 precursor." Journal of the Serbian Chemical Society 78, no. 10 (2013): 1491–501. http://dx.doi.org/10.2298/jsc130322050p.

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3-Cyano-4-ethoxymethyl-6-methyl-2-pyridone is an important precursor in the synthesis of vitamin B6, obtained in the addition reaction between 2-cyanoacetamide and 1-ethoxy-2,4-pentanedione catalyzed by lipase from Candida rugosa (triacylglycerol ester hydrolases, EC 3.1.1.3). This work shows new experimental data and mathematical modeling of lipase catalyzed synthesis of 3-cyano-4-ethoxymethyl-6-methyl-2-pyridone, starting from 1-ethoxy-2,4-pentanedione and 2-cyanoacetamide. Kinetic measurements were done at 50 oC with enzyme concentration of 1.2 % w/v. Experimental results were fitted with t
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Pei, Li-Xia, Xian-Zhang Bu, Lian-Quan Gu, and Seik Weng Ng. "3-[(4-Hydroxy-3-methoxyphenyl)methylene]-2,4-pentanedione." Acta Crystallographica Section E Structure Reports Online 61, no. 3 (2005): o541—o543. http://dx.doi.org/10.1107/s1600536805002941.

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Cadierno, Victorio. "(E)-1,1,1-Trifluoro-6,6-bis(4-methoxyphenyl)hexa-3,5-dien-2-one." Molbank 2020, no. 1 (2020): M1120. http://dx.doi.org/10.3390/m1120.

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The title compound was obtained in high yield (84%) via the deacetylation of 3-(3,3-bis(4-methoxyphenyl)allylidene)-1,1,1,5,5,5-hexafluoro-2,4-pentanedione with K2CO3 in refluxing methanol. This previously unreported compound has been fully characterized by 19F{1H}, 1H and 13C{1H} NMR, IR, UV-Vis, and HRMS.
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7

Guo, Huan Mei, Yun Chen Zhang, and Yu Feng Li. "Synthesis and Crystal Structure Studies on 3-(4-Fluorophenyl)-1,5-Bis(pyridyl)-1,5-Pentanedione." Advanced Materials Research 926-930 (May 2014): 300–303. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.300.

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3-(4-Fluorophenyl)-1,5-bis (pyridyl)-1,5-pentanedione has been synthesized and the crystal structure has been determined by means of single-crystal X-ray diffraction. In the moleculer structure,the phenyl ring and the two pyridine rings are almost perpendicular , and two pyridine rings are closed to coplane.
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8

Milata, Viktor, Dušan Ilavský, Igor Goljer, and Ján Leško. "4-N-Benzazolylamino Derivatives of 3-Y-3-Buten-2-one." Collection of Czechoslovak Chemical Communications 57, no. 3 (1992): 531–39. http://dx.doi.org/10.1135/cccc19920531.

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Ethoxymethylene derivatives of 2,4-pentanedione (Ia), 3-oxobutanenitrile (Ib), methyl (Ic) or ethyl (Id) 3-oxobutanoate give with 4- or 5-aminobenzimidazole or benzotriazole, respectively, under mild conditions products of nucleophilic substitution II-V. Structure of these compounds was discussed on the basis of their spectral measurements - IR, UV, 1H, 13C NMR and mass spectra.
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9

Jha, Anjali, Y. L. N. Murthy, G. Durga, and T. T. Sundari. "Microwave-Assisted Synthesis of 3,5-Dibenzyl-4-amino-1,2,4-triazole and its Diazo Ligand, Metal Complexes Along with Anticancer Activity." E-Journal of Chemistry 7, no. 4 (2010): 1571–77. http://dx.doi.org/10.1155/2010/569605.

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Synthesis of 3,5-dibenzyl-4-amino-1,2,4-triazole was accomplished via a conventional method as well as microwave irradiation method, followed by diazotization and coupling with 2,4-pentanedione. The dinucleating ligand was isolated and complexed with Ni(II), Cu(II) and Ru(III) chlorides. These complexes were screened on Jurkat, Raji & PBMC cell lines for anticancer activity. Ruthenium complexes showed potential anticancer activities.
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10

KHACHATRYAN, D. S., A. A. VARDAPETYAN, G. A. PANOSYAN, R. G. MIRZOYAN, and N. M. MORLYAN. "ChemInform Abstract: Alkylation of Carbon Acids in the Presence of Potassium Carbonate. Part 4. Alkylation of 2,4-Pentanedione and 3-Methyl-2,4-pentanedione." ChemInform 22, no. 15 (2010): no. http://dx.doi.org/10.1002/chin.199115101.

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Book chapters on the topic "4-pentanedione"

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of iron(III) bromo complex with 1,2-dihydro-1-phenyl-2,3-dimethyl-4-[2′,4′-pentanedione-3′-hydrazono]-pyrazol-5-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 1. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62478-4_405.

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of iron(III) perchlorato complex with 1,2-dihydro-1-phenyl-2,3-dimethyl-4-[2′,4′-pentanedione-3′-hydrazono]-pyrazol-5-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 1. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62478-4_419.

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of iron(III) chloro complex with 1,2-dihydro-1-phenyl-2,3-dimethyl-4-[2′,4′-pentanedione-3′-hydrazono]-pyrazol-5-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 1. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62478-4_406.

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of iron(III) nitrato complex with 1,2-dihydro-1-phenyl-2,3-dimethyl-4-[2′,4′-pentanedione-3′-hydrazono]-pyrazol-5-one." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 1. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62478-4_416.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of mixed ligand copper(II) chelate containing N, N-dimethyl-1, 2-diaminoethane and 3-cyano-2, 4-pentanedione." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_104.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of mixed ligand copper(II) chelate containing N, N-dimethyl- 1, 2-diaminoethane, 3-cyano-2, 4-pentanedione and isocyanide." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_100.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of mixed ligand copper(II) chelate containing N, N-dimethyl-1, 2-diaminoethane, 3-cyano-2, 4-pentanedione and fluoride." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_101.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of mixed ligand copper(II) chelate containing N, N-dimethyl-1, 2-diaminoethane, 3-cyano-2, 4-pentanedione and chloride." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_102.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of mixed ligand copper(II) chelate containing N, N-dimethyl-1, 2-diaminoethane, 3-cyano-2, 4-pentanedione and bromide." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_103.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) chelate containing N, N-dimethyl-1, 2-diaminoethane and 3-cyano-2, 4-pentanedione with nitrate counterion." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_106.

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Conference papers on the topic "4-pentanedione"

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Pogrebnoi, Vsevolod, Natalia Sucman, and Fliur Macaev. "The amides of dehydroabietic acid in synthesys of spiropyranes with the participation of carbonyl compounds." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab16.

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The abstract presents the synthesis of new spiropyranes from substituted 5-aminoisatin 6 in multicomponent reaction with different carbonyl compounds. It is known that spiropyranes have various activities, which depend from spatial structure and substituents [1]. From the other side, previously mentioned dehydroabietic acid 1 [2] is interesting object to study due to its molecular structure, chemical and biological properties.Initially, our strategy was to obtain the substituted isatine 6 from easily accessible isatine 3. To implement that approach, previously obtained [2] 5-nitroisatine react
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