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Готові списки джерел за темами / Trifluoro Acetic Acid

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Добірка наукової літератури з теми "Trifluoro Acetic Acid"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Trifluoro Acetic Acid"

1

Gupta, Ritesh Kant, Rabindranath Garai, and Parameswar Krishnan Iyer. "Ambient Stable Perovskite Solar Cells through Trifluoro Acetic Acid-Mediated Multifunctional Anchoring." ACS Applied Energy Materials 5, no. 2 (2022): 1571–79. http://dx.doi.org/10.1021/acsaem.1c02984.

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2

PADMINI, THATAVARTHI, and BIGALA RAJ KAMAL. "Synthesis, Anti-inflammatory, Analgesic and Antipyretic Activity of Novel 1,3,5-Trisubstituted Pyrazole Derivatives." Asian Journal of Chemistry 31, no. 6 (2019): 1225–29. http://dx.doi.org/10.14233/ajchem.2019.21781.

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A novel series of 1,3,5-trisubstituted pyrazole derivatives were synthesized by the cycloaddition reaction between the electron rich N-substituted aryl hydrazones and nitro-olefins. Different N-substituted aryl hydrazones (1a-j) on reacting with 4-methyl-β-nitrostyrene (2) in ethylene glycol or trifluoroethanol-trifluoro acetic acid mixture (for acid stable hydrazones) at 120 ºC, yielded various 1,3,5-trisubstituted pyrazoles (3a-j). The final products were characterized by spectral analysis using Mass, NMR and IR spectroscopy. All the products were assessed for their anti-inflammatory, analge

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3

Schenk, Wolfdieter A., Nikola Sonnhalter, and Nicolai Burzlaff. "Synthesis of Cationic Ruthenium Thioketene Complexes through Intramolecular 1,2-Elimination [1]." Zeitschrift für Naturforschung B 52, no. 1 (1997): 117–24. http://dx.doi.org/10.1515/znb-1997-0123.

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Halfsandwich thiocarboxylate complexes [CpRu(PR3)2(SC(O)CH2R′)] ((PR3)2 = (PPh3)2, Ph2PCH2PPh2 (dppm), Ph2PC2H4PPh2 (dppe); R′ = C6H5, 4-C6H4Me, 4-C6H4OMe, 4-C6H4Cl) are obtained from the corresponding thiolate complexes [CpRu(PR3)2SH] and acyl chlorides. The structure of [CpRu(dppm)(SC(O)CH2Ph)] was determined: monoclinic space group P21/c (No. 14), a = 9.229(2), b = 16.680(3), c = 21.447(5) Å, β = 90.751(12)°, Z = 4. Reaction of the thiocarboxylate complexes with the anhydrides of either trifluoro-acetic acid or trifluoromethanesulfonic acid gives thioketene complexes [CpRu(dppm) (η2-S=C=CHR

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4

Benzil, Dudekula1* Dr.C.Ramachandraiah2 Dr.N.Devanna3. "ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE SIMULTANEOUS ESTIMATION OF SOFOSBUVIR AND DACLATASVIR DRUG PRODUCT BY RP-HPLC METHOD." INDO AMERICAN JOURNAL OF PHARMACEUTICAL RESEARCH 07, no. 09 (2017): 480–87. https://doi.org/10.5281/zenodo.1036476.

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Analytical method was developed for the estimation of Sofosbuvir and Daclatasvir drug substance by liquid chromatography. The chromatographic separation was achieved on C18 column (XTerra RP18 150*4.6, 5um) at ambient temperature .The separation achieved employing a mobile phase consists of 0.1%v/v Trifluoro acetic acid in water: Acetonitrile (60:40). The flow rate was 1.0 ml/ minute and ultra violet detector at 275nm. The average retention time for Sofosbuvir and Daclatasvir found to be 2.09 and 3.50 min. The proposed method was validated for selectivity, precision, linearity and accuracy. Al

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5

Uppalapati.Jyothi*1, Dr.Parimi.Umadevi2. "ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE SIMULTANEOUS ESTIMATION OF SOFOSBUVIR AND VELPATASVIR DRUG PRODUCT BY RP-HPLC METHOD." INDO AMERICAN JOURNAL OF PHARMACEUTICAL RESEARCH 07, no. 09 (2017): 401–9. https://doi.org/10.5281/zenodo.1036448.

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A novel reversed phase high performance liquid chromatography (RP-HPLC) method has been developed for the estimation of Sofosbuvir and Velpatasvir drug product by liquid chromatography. The chromatographic separation was achieved on C18 column (XTerra RP18 150*4.6, 5um) at ambient temperature .The separation achieved employing a mobile phase consists of 0.1%v/v Trifluoro acetic acid in water: Methanol (42:58). The flow rate was 1.0 ml/ minute and ultra violet detector at 269nm. The average retention time for Sofosbuvir and Velpatasvir found to be 3.44 and 4.68 min. The proposed method was vali

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6

Balasekaran, Samundeeswari Mariappan, Adelheid Hagenbach, and Frederic Poineau. "Towards mid-valent rhenium fluoro-phosphine complexes via hexafluoridorhenate(IV) anion pathway assisted by trifluoro acetic acid." Inorganic Chemistry Communications 119 (September 2020): 108064. http://dx.doi.org/10.1016/j.inoche.2020.108064.

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7

Talybov, Gulahmad, Aygun Baghirli та Najiba Shirinova. "SYNTHESIS AND DETERMINATION OF THE ABSOLUTE CONFIGURATION OF MONOETHERS OF α-GLYCOLS OF ALLYL AND PROPARGYL ALCOHOLS BY NMR 1H SPECTROSCOPY". Ukrainian Chemistry Journal 86, № 4 (2020): 126–31. http://dx.doi.org/10.33609/2708-129x.86.4.2020.126-131.

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The synthesis of previously unknown unsaturated aromatic oxyethers was carried out by reaction of chloromethylpropargyl(allyl) ether with phenacyl bromide, with the participation of the chiral catalyst - (+)-benzotetramisole, and their configurations were also established. It was shown the anisotropic effect of the phenyl group in the acid chloride of α-methoxytrifluoromethylphenylacetic acid (MTPA-Cl) on the halogenaryl group. Such effect leads to screening of the latter, and this, in turn, leads to a shift to a strong field and positive values of ∆δR/S, while proton signals of the less bulky

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8

Hřebabecký, Hubert, Martin Dračínský, and Antonín Holý. "Synthesis of Novel Carbocyclic Nucleoside Analogues Containing Bicyclo[2.2.1]hept-2-ene-2-methanol." Collection of Czechoslovak Chemical Communications 73, no. 1 (2008): 44–58. http://dx.doi.org/10.1135/cccc20080044.

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Starting ethyl (1R*,2R*,3R*,4S*)-3-bromobicyclo[2.2.1]hept-5-ene-2-carboxylate (9) was reduced with LiAlH4and benzoylated giving [(1R*,2R*,3R*,4S*)-3-bromobicyclo[2.2.1]hept-5-en-2-yl]methyl benzoate (11). Treatment of11with NaN3and CrO3in acetic acid afforded [(1R*,2S*,3R*,4R*,5S*,6R*)-6-azido-3-bromo-5-hydroxybicyclo[2.2.1]hept-2-yl]methyl benzoate (12a) and [(1R*,2S*,3S*,4R*,5S*,6R*)-5-azido-3-bromo-6-hydroxybicyclo[2.2.1]heptan-2-yl]-methyl benzoate (12b). These key intermediates were separated and converted in five reaction steps to (1R*,2R*,3S*,4S*)-3-[(5-amino-6-chloropyrimidin-4-yl)ami

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9

D.T., Biradar, and M. B. Swami Dr. "Synthesis of Schiff's Bases from 2-Amino-4H-1, 3-Oxazine / Thiazine and Substituted Aldehydes and their Transition Metal Complexes." International Journal of Current Science Research and Review 04, no. 07 (2021): 677–83. https://doi.org/10.47191/ijcsrr/V4-i7-09.

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Abstract : Objective: Many methods can be found in literature for the synthesis a Oxazines and Thiazines. Few are reported for one-pot multi component cyclo-condensation of an alkayane urea / Thiourea and Aldehyde to 2- amino-4H-1, 3-Oxazines or Thiazines. Different catalysts are reported like Trifluoro-acetic acid, glacial acetic acid under reflux condition Mandal and Co-workers have utilized perchloric acid (HClO4) supported on silica gel as catalyst under solvent free condition ytterbium trifluorate [Yb(OTF)3] plays role of Lewis acid. It is also used in several Diel’s-Alder cyclo-add

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10

Raval, Milin. "QUALITATIVE AND QUANTITATIVE ASSESSMENT OF RELATED SUBSTANCES IN THE CLOBETASOL PROPIONATE IN TOPICAL CREAM DOSAGE FORM BY RP-HPLC." Journal of Medical pharmaceutical and allied sciences 10, no. 6 (2021): 4072–4. http://dx.doi.org/10.22270/jmpas.v10i6.1838.

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The identification and control of impurities in drug substance and drug product is considered as very critical factor by regulatory agency for safe and effective use of Drug product for its intended use. A specific and sensitive Reverse Phase High Performance Liquid Chromatography (RP-HPLC) method is developed and validated for the estimation of 11 specified impurities in Topical Clobetasol Propionate Cream. The chromatographic parameters for develop method are C18 column, proportion of Water: Methanol: Acetonitrile: Trifluoro acetic acid as mobile phase at flow rate of 1.2 ml/min and UV detec

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Більше джерел

Частини книг з теми "Trifluoro Acetic Acid"

1

Winkelmann, Jochen. "Self-diffusion coefficient of trifluoro-acetic acid." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_44.

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2

Winkelmann, Jochen. "Diffusion coefficient of tetrachloro-methane in trifluoro-acetic acid." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_13.

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