Academic literature on the topic 'Substituted benzophenone'

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Journal articles on the topic "Substituted benzophenone"

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Cox, Philip J., Dimitrios Kechagias, and Orla Kelly. "Conformations of substituted benzophenones." Acta Crystallographica Section B Structural Science 64, no. 2 (2008): 206–16. http://dx.doi.org/10.1107/s0108768108000232.

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The inclination of the two aryl rings (ring twists) in a series of benzophenone molecules has been examined. For each structure the dihedral angle (between the planes of the two sets of six aromatic C atoms) relates to both the steric considerations of the single molecule and the packing forces related to the crystal structure. Six new benzophenone structures are incorporated into the study including 2,2′-dihydroxy-4,4′-dimethoxybenzophenone (I), C15H14O5, that appears to have the smallest reported twist angle, 37.85 (5)°, of any substituted benzophenone reported to date. Three further benzoph
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Samarov, Artemiy A., Stanislav O. Kondratev, and Sergey P. Verevkin. "Nearest-Neighbour and Non-Nearest-Neighbour Non-Covalent Interactions between Substituents in the Aromatic Systems: Experimental and Theoretical Investigation of Functionally Substituted Benzophenones." Molecules 27, no. 23 (2022): 8477. http://dx.doi.org/10.3390/molecules27238477.

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Benzophenone derivatives exhibit not only biological activity but also act as photo initiator and UV blocker. We carried out experimental and theoretical thermochemical studies of hydroxy- and methoxy-substituted benzophenones. Standard molar enthalpies of vaporisation were obtained from the temperature dependence of vapour pressures measured by the transpiration method. The thermodynamic data on phase transitions available in the literature (crystal–gas, crystal–liquid, and liquid–gas) were also collected and evaluated. High-level quantum chemical methods G3MP2 and G4 were used to estimate th
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VIDYA, JOSHI, та K. SHARMA R. "Diazotisation Rearrangement of Tosylhydrazones of ortho- and meta-Substituted-benzophenones and α-Substituted-acetophenones (Synthesis of Anilides)". Journal of Indian Chemical Society Vol. 65, Aug 1988 (1988): 564–66. https://doi.org/10.5281/zenodo.6042085.

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Institute of Science, 15, Madam Cama Road, Bombay-400 032 <em>Manuscript received 25 January 1988, accepted 28 May 2988</em> <em>Ortho</em>- and <em>meta</em>-substituted-benzophenones (1a &mdash;g) and substituted-acetophenones (1h &mdash; i) were converted into tosylhydrazones (2a&mdash; i) by reacting with<em> p</em>-toluenesulphonyl&shy;hydrazide. Conversion of 2a &mdash; i to the anilides (3a &mdash;i) was effected with the reagents H<sub>2</sub>SO<sub>4</sub> and NaNO<sub>2</sub>, and was found to be as facile as In case of the <em>para</em>-substituted&shy;benzophenone hydrazones.
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Chung, Mee-Kyung, Paul Fancy, and Jeffrey M. Stryker. "Bis(ether) derivatives of tetrakis(2-hydroxyphenyl)ethene — Direct synthesis of (E)- and (Z)-bis(2-hydroxyphenyl)-bis(2-methoxyphenyl)ethene via the McMurry olefination reaction." Canadian Journal of Chemistry 84, no. 10 (2006): 1250–53. http://dx.doi.org/10.1139/v06-087.

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The direct synthesis of sterically hindered, partially etherified derivatives of tetrakis(2-hydroxyphenyl)ethene is reported by using the McMurry reductive olefination reaction on a range of differentially substituted 2,2′-dialkoxy benzophenone substrates. Three orthogonal protection strategies are demonstrated, incorporating β-silylethyl, 3-butenyl, and tert-butyl protecting groups, respectively, into the starting benzophenones. The latter proved most efficient, with both the McMurry coupling and deprotection steps occurring concomitantly under the McMurry conditions to directly yield the des
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Liu, Zhaoming, Haibo Tan, Kai Chen, et al. "Rhizophols A and B, antioxidant and axially chiral benzophenones from the endophytic fungus Cytospora rhizophorae." Organic & Biomolecular Chemistry 17, no. 47 (2019): 10009–12. http://dx.doi.org/10.1039/c9ob02282a.

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Bushra Begum, A., Noor Fatima Khanum, V. Lakshmi Ranganatha, T. Prashanth, Mohammed Al-Ghorbani, and Shaukath Ara Khanum. "Evaluation of Benzophenone-N-ethyl Morpholine Ethers as Antibacterial and Antifungal Activities." Journal of Chemistry 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/941074.

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Microorganisms are closely associated with the health and welfare of human beings. Whereas some microorganisms are beneficial, others are detrimental. Bacterial infections often produce inflammation and pains and in some instances, infections result in high mortality. Any subtle change in the drug molecule, which may not be detected by chemical methods, can be revealed by a change in the antimicrobial activity and hence microbiological assays are very useful. A series of substituted hydroxy benzophenones and benzophenone-N-ethyl morpholine ethers were screened for their antibacterial and antif
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Lange, Margaret J., Anna R. Oller, and Somnath Sarkar. "Antimicrobial Activity of Mono- and Di-Methyl Substituted Benzhydrols and Benzophenones In Vitro." Transactions of the Missouri Academy of Science 41, no. 2007 (2007): 14–19. http://dx.doi.org/10.30956/0544-540x-41.2007.14.

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Twelve compounds of mono methyl and symmetrical dimethyl substituted benzhydrol and benzophenone were synthesized using standard synthetic procedures and screened for possible antimicrobial activity against thirteen known Gram-positive and Gram-negative bacteria, as well as two yeasts. Most benzhydrol and benzophenone derivatives under investigation demonstrated some antimicrobial activity, with ortho-methylbenzophenone, dapsone, meta-dimethylbenzophenone, and para-dimethylbenzyhydrol showing the greatest inhibition. Only four compounds, ortho-methylbenzhydrol, para-methylbenzhydrol, para-meth
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R., A. KULKARNI, and R. THAKER S. "2-Benzoyl-4-substituted-phenyl-5-phenylthiazoles." Journal of Indian Chemical Society Vol. 65, Jun 1988 (1988): 427–28. https://doi.org/10.5281/zenodo.6298979.

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C. C. Shroff &nbsp;Research Institute, Goregaon (W), Bombay-400 062 <em>Manuscript &nbsp;received 7 January 1987, accepted 12 April 1988</em> Preparations of some 2-benzoyl-4-substituted-phenyl-5-phenylthiazoles are described.
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Jirman, Josef, та Alexander Popkov. "1H, 13C, and 15N NMR Spectra of Ni(II) Complexes of Schiff Bases of (S)-2-(N-Benzylprolyl)aminobenzophenone and α-Monosubstituted Glycine and Determination of Configuration of the Complexes by 2D NOESY Spectra". Collection of Czechoslovak Chemical Communications 60, № 6 (1995): 990–98. http://dx.doi.org/10.1135/cccc19950990.

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1H, 13C, and 15N NMR spectra have been measured of substituted Ni(II) complexes of Schiff bases of (S)-2-(N-benzylprolyl)aminobenzophenone and glycine. The absolute configuration at C19 of the substituted glycine can be determined from 2D NOESY spectra using the NOESY interactions with the proton of the second chiral centre of the complex. It is possible to determine the rate of rotation of phenyl group of benzophenone unless its rotation is prevented by requatorialr orientation of dimethylamino group as it is the case with the Ni(II) complex of Schiff base of (S)-2-(N-benzylprolyl)aminobenzop
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Rusanov, Alexander L., Ludmila G. Komarova, Marina P. Prigozhina, Roman S. Begunov, and Yulia S. Yakovleva. "Benzophenone-Type Unsymmetrical Substituted Aromatic Diamines and Organosoluble Polyimides Therefrom." High Performance Polymers 21, no. 6 (2008): 729–43. http://dx.doi.org/10.1177/0954008308099187.

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Dissertations / Theses on the topic "Substituted benzophenone"

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Le, Poul Pascal. "Sels de pyrylium et carbenes de fischer action des carbanions des carbenes de fischer sur des sels de pyrylium. Synthese de benzophenones hautement substituees et de carbenes de fischer insatures de type donneur - accepteur, directement ou non directement stabilises par un heteroatome." Rennes 1, 1999. http://www.theses.fr/1999REN10111.

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Les sels de pyrylium sont des heterocycles aromatiques oxygenes presentant un caractere de carbocation. Cette propriete est a l'origine de leur utilisation comme synthon pour la synthese de produits naturels et ils ont joue un role clef dans le developpement de la chimie heterocyclique. Par contre, la chimie organometallique des metaux de transition de ces sels a ete tres peu etudiee. Pour contribuer au developpement de cette chimie, nous avons teste la reactivite du noyau pyrylium avec des carbanions des carbenes de fischer. Dans ce memoire, nous presentons la reactivite des carbanions des ca
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Mitchell, Devin Paul. "The Intramolecular photoredox behaviour of substituted benzophenones and related compounds." Thesis, 2008. http://hdl.handle.net/1828/1003.

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The discovery and mechanistic investigation of a new class of photochemical reactions of benzophenones and related compounds is documented in this Thesis. Their photobehaviour in aqueous solvent media varied dramatically from their well-known behaviour in organic solvents and suggests unique and unprecedented mechanistic pathways. The aqueous photoredox chemistry of various substituted benzophenones was initially explored. Particular attention was paid to 3-(hydroxymethyl)benzophenone (47), which upon photolysis in acidic aqueous media undergoes an intramolecular photoredox reaction to prod
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Sudha, B. S. "Synthesis and antimicrobial activity of substituted benzophenones and their related compounds." Thesis, 2004. http://hdl.handle.net/2009/3144.

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Book chapters on the topic "Substituted benzophenone"

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Takahashi, H., H. Ohkusa, H. Isaka, S. Suzuki, and S. Hirukawa. "Time-Resolved Resonance Raman Studies of Photoenolization of ortho-Alkyl Substituted Benzophenones." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-47541-2_29.

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Conference papers on the topic "Substituted benzophenone"

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Rhew, Jumin, Hogap Kim, Hao Zheng, Ho-Jong Kang, and Frank E. Talke. "Thermal Stability of Modified Perfluoropolyether Lubricants for Application in Heat Assisted Magnetic Recording." In ASME/STLE 2011 International Joint Tribology Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ijtc2011-61044.

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Perfluoropolyether (PFPE) lubricants were chemically modified to maximize their thermal stability for application in heat assisted magnetic recording (HAMR). Benzophenone (BP) was introduced to react with the hydroxyl end group in PFPE to act as a free radical stabilizer. Modification of the PFPE by benzophenone was confirmed by evaluation of the chemical shift and the area change of the hydroxyl peak in the 1H NMR spectra. The thermal stability of modified PFPE lubricants was studied using thermo-gravimetry. The improvement in the thermal stability was found to be a function of the amount of
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