Gotowe bibliografie tematyczne / Ammonium acetate ir

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Gotowa bibliografia na temat „Ammonium acetate ir”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Ammonium acetate ir"

A. Bawa, Ramadan, and Amany H. Elgroshi. "Preparation and Antifungal Study of Some Ammonium Salts Derived from Acetic Acid and Trichloroacetic Acid." مجلة العلوم الاساسية و التطبيقية, no. 15 (June 16, 2025): 25–30. https://doi.org/10.36602/jsba.2023.15.17.

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This work is concerned with the preparation of a number of organic ammonium acetate and trichloroacetate salts (ionic liquids; ILs) throughout a reaction of the acetic acid and trichloroacetic acid with some aliphatic and aromatic amines including the ammonia. Ten organic ammonium carboxylate salts were obtained, some of them were in the form of solid salts, whereas others were as liquids (ionic liquids; ILs) at room temperature. The yields of the resulting organic salts ranged from (21%) to (79%). However, some attempts towards the preparation of other organic salts were not successful. The o

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MONINA, A. P., K. V. APRYATINA, O. N. SMIRNOVA, and L. A. SMIRNOVA. "Biodegradable composite material based on the starch-g-vinyl acetate copolymer." Plasticheskie massy, no. 7-8 (October 26, 2022): 20–22. http://dx.doi.org/10.35164/0554-2901-2022-7-8-20-22.

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A native potato starch was modififi ed with vinyl acetate by graft polymerization in alkaline medium with pH 10 in the mode of temperature change from 70 to 80°C for 4 hours. The initiator of the process was ammonium persulfate (NH4)2S2O8. The conversion of vinyl acetate was 91,5%. The chemical structure of graft copolymer (Starch:Vinyl acetate) was confifi rmed by IR-spectroscopy. Composite materials of modififi ed starch and triethyl citrate with tensile strength of 24 MPa were obtained. Under natural environmental conditions, materials undergo biodegradation of 96% in 28 days.

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Nimbalkar, Seijas, Vazquez-Tato, and Nikalje. "Ultrasound-Assisted One Pot Synthesis of Novel 5-(1-(Substituted phenyl)-4,5-diphenyl-1H-imidazol-2-yl)-4-methylthiazole." Proceedings 9, no. 1 (2018): 63. http://dx.doi.org/10.3390/ecsoc-22-05795.

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This work reports synthesis of ten novel derivatives of 5-(1-(substituted phenyl)-4,5-diphenyl-1H-imidazol-2-yl)-4-methylthiazole 5(a–o). The reaction of benzil, primary aryl amines, 4-methylthiazole-5-carbaldehyde and ammonium acetate was carried out in one pot in the presence of eco-friendly catalyst Ceric ammonium nitrate in solvent ethanol to give final compounds. The structures of the synthesized compounds were confirmed by spectral characterization such as IR, 1H-NMR, 13C-NMR and mass spectral studies.

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Nosova, N. V., М. О. Starovoytova, R. R. Mahmudov, V. V. Novikova, М. V. Dmitriev, and V. L. Gein. "Synthesis and biological activity of substituted 5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxamides." Žurnal obŝej himii 94, no. 5 (2024): 559–68. http://dx.doi.org/10.31857/s0044460x24050032.

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A four-component solvent-free reaction of acetoacetic acid amide with dimedone, aromatic aldehydes and ammonium acetate leads to new substituted 5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxamides. The structures of the products were proved using IR, 1H and 13C NMR spectroscopy, mass spectrometry and X-ray diffraction analysis. The synthesized compounds were tested for antimicrobial and antinociceptive activities.

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Bhadrachar, Somashekara, Giriyapura R. Vijayakumar, Kittappa M. Mahadevan, and Thippeswamy Basavaraja. "Synthesis, Molecular Docking and Radical Scavenging Activity of 1,2,4,5-Tetrasubstituted Imidazole Derivatives." Asian Journal of Chemistry 31, no. 11 (2019): 2448–52. http://dx.doi.org/10.14233/ajchem.2019.22107.

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A series of 1,2,4,5-tetrasubstituted imidazoles (2a-g) were synthesized using 1,2-diketone, 1-naphthaldehyde, substituted aromatic amine and ammonium acetate in the presence of ceric ammonium nitrate as a catalyst. The synthesized compounds were characterized by FT-IR, 1H NMR, Mass spectra and explored for their antioxidant activity by DPPH free radical scavenging assay method. Among the synthesized compounds 2a, 2e and 2f exhibit good antioxidant activities. Molecular docking study was also been performed to know the possible interactions between the synthesized compound and antioxidant recep

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Hemmesi, Leila. "Preparation and Characterization of NiCoFe2O4 Nanoparticles as an Effective Catalyst for the Synthesis of Trisubstituted Imidazole Derivatives Under Solvent-free Conditions." Acta Chimica Slovenica 69, no. 4 (2022): 876–83. http://dx.doi.org/10.17344/acsi.2022.7633.

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In this study, NiCoFe2O4 nanoparticles were prepared and used as a reactive catalyst for the synthesis of trisubstituted imidazoles. The multicomponent reactions of aromatic aldehydes, benzil and ammonium acetate were carried out under solvent-free and conventional heating conditions. In this reaction, some imidazole derivatives with high purity, short reaction times and high yields were obtained. The prepared nanocatalyst was characterized by FT-IR, XRD, EDX, VSM and SEM techniques. Moreover, the organic products were identified by melting point, FT-IR and 1H NMR analyzes.

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Ehsanifar, Sepideh, and Masoud Mokhtary. "3-Carboxy-1-sulfopyridin-1-ium chloride ([CPySO3H]+Cl−): an efficient catalyst for one-pot synthesis of hexahydroquinoline-3-carboxamides." Heterocyclic Communications 24, no. 1 (2018): 27–29. http://dx.doi.org/10.1515/hc-2017-0211.

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Abstract 3-Carboxy-1-sulfopyridin-1-ium chloride ([CPySO3H]+Cl−) was synthesized and evaluated as a recoverable catalyst for one-pot synthesis of hexahydroquinoline-3-carboxamide derivatives by a four-component reaction of an arylaldehyde, dimedone, acetoacetanilide and ammonium acetate. The [CPySO3H]+Cl− catalyst was characterized by infrared (IR), 1H nuclear magnetic resonance (NMR), 13C NMR, elemental analysis and thermal gravimetric analysis (TGA).

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Fan, Rui, and Jin Shui Yao. "Synthesis and Characterization of Optically Active Poly(N-Acryloyl-L-alanine) in Ionic Lliquids." Advanced Materials Research 1035 (October 2014): 464–68. http://dx.doi.org/10.4028/www.scientific.net/amr.1035.464.

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The chiral monomer,N-acryloyl-L alanine, was synthesized by condensation reaction between acryloyl chloride and L-alanine using ethyl acetate and water as two-phase solvents, tetrabutyl ammonium bromide as phase transfer catalyst and ethyl acetate as the extraction solvent.And then, poly (N-acryloyl-L-alanine) was successfully prepared by free radical polymerization of above synthesized monomer using 2,2'-Azobis (2-methylpropionitrile) AIBN as initiator in ionic liquids. Their structures were characterized by1HNMR and IR. Optically activities were tested with Rotary Spectrometer. Melting point

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M., K. Gupta, K. Gupta A., Gupta Vandana, and C. Gupta K. "Synthesis of some new 2,4,6-trisubstituted phenyl pyrimidines using 4-nitro and 4-fluorophenacyldimethylsulfonium bromides with aromatic aldehydes." Journal of Indian Chemical Society Vol. 84, Mar 2007 (2007): 299–302. https://doi.org/10.5281/zenodo.5816595.

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Dnepartment of Applied Chemistry, Birla Institute of Engineering and Technology, Jhansi-284 001, Uttar Pradesh, India Department of Chemistry, D. V. (P.G.) College, Orai-285 001, Uttar Pradesh, India <em>Manuscript received 6 February 2006, revised 14 November 2006, accepted 2 February 2007</em> 4-Nitrophenacyldimethylsulfonium bromide and 4-fluorophenacyldimethylsulfonium bromide have been prepared by the reaction of dimethyl sulfide with 4-substitutedphenacyl bromide in benzene at reflux temperature under nitrogen atmosphere. These sulfonium salts on treatment with NaOH gave 4- itrophenacyli

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Miao, Jiao Jiao, Yong Qi Yu, and Li Ping Zhang. "A New Solvent for the Industrial Production of Cellulose Fibers: Quaternary Ammonium Acetate." Materials Science Forum 852 (April 2016): 1256–64. http://dx.doi.org/10.4028/www.scientific.net/msf.852.1256.

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Tetrabutylammonium acetate, a new solvent, can dissolve cellulose (8 wt%) within 5 min at 40°C with dimethyl sulfoxide as coslovent without any pretreatment or inert gas atmosphere. The dissolution detail was recorded by Confocal Laser Scanning Microscope. And the viscosity of cellulose solution prepared from the new solvent was only 10% of that prepared from [BMIM]Cl. Moreover, the influence of molecular weight on the rheology of the cellulose solution was investigated. With the increase of the molecular weight, the viscosity was increasing and the cross-over point of the storage modulus (G′)

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Części książek na temat "Ammonium acetate ir"

Taber, Douglass F. "Advances in Organic Functional Group Transformation." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0006.

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There have been several significant advances in N-alkylation using alcohols. Matthias Beller of Universität Rostock devised (Angew. Chem. Int. Ed. 2010, 49, 8126) a Ru catalyst for the amination of secondary and benzylic primary alcohols with ammonia. Dieter Vogt of the Eindhoven University of Technology reported (Angew. Chem. Int. Ed. 2010, 49, 8130) related transformations. Pei-Qiang Huang of Xiamen University showed (Chem. Commun. 2010, 46, 7834) that debenzylation of 3 in methanol led to the N-methyl amine 4. Parallel results have been reported with Ir (J. Am. Chem. Soc. 2010, 132, 15108),

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Streszczenia konferencji na temat "Ammonium acetate ir"

Chen, Kok Hao, and Jong Hyun Choi. "DNA Oligonucleotide-Templated Nanocrystals: Synthesis and Novel Label-Free Protein Detection." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11958.

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Semiconductor and magnetic nanoparticles hold unique optical and magnetic properties, and great promise for bio-imaging and therapeutic applications. As part of their stable synthesis, the nanocrystal surfaces are usually capped by long chain organic moieties such as trioctylphosphine oxide. This capping serves two purposes: it saturates dangling bonds at the exposed crystalline lattice, and it prevents irreversible aggregation by stabilizing the colloid through entropic repulsion. These nanocrystals can be rendered water-soluble by either ligand exchange or overcoating, which hampers their wi

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