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Journal articles on the topic '2-Hydroxyacetophenones'

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1

S., Kothari, Singhal M., Vijayvergia D., Vyas R., and L. Verma B. "Synthesis and biocidal activity of some new 2-amino-4,6-diarylsubstituted-pyrimidines." Journal of Indian Chemical Society Vol. 77, Jul 2000 (2000): 329–31. https://doi.org/10.5281/zenodo.5867166.

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Department of Chemistry, Faculty of Science, M. L. Sukhadia University, Udaipur-313 002, India <em>Manuscript&nbsp;received 17 November 1999, accepted 23 March 2000</em> The chalcones (3a-q), derived from 3,5-dibromo-4-hydroxyacetophenone (Ia), 3,5-dibromo-2-hydroxyacet!)phenone (1b), 3-bromo-5- chloro-/5-methyl-2-hydroxyacetophenones (1c,d) and 4-(4&#39;-nitrophenoxy)acetophenone (1e) and prepared by Claisen-Schmidt condensation with different substituted aromatic aldehydes (2a-f)&nbsp;in presence of base, on treatment with guanidine nitrate in ethanol and base give new 2-amino-4,6-diaryl-sub
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2

Lekkala, Revathi, Ravindar Lekkala, Balakrishna Moku, K. P. Rakesh, and Hua-Li Qin. "SO2F2-mediated transformation of 2'-hydroxyacetophenones to benzo-oxetes." Beilstein Journal of Organic Chemistry 15 (April 25, 2019): 976–80. http://dx.doi.org/10.3762/bjoc.15.95.

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A catalyst-free novel and efficient methodology for the challenging synthesis of benzo-oxetes from 2'-hydroxyacetophenones mediated by sulfuryl fluoride (SO2F2) gas has been realized. The combination of 2'-hydroxyacetophenones and SO2F2 furnishes synthetically challenging benzo-oxetanes in moderate to excellent yields. The highlight of this work is the design and synthesis of strained four-membered oxete rings.
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3

Sahoo, Subas Chandra, Utpal Nath, and Subhas Chandra Pan. "Direct Aerobic Oxidative Reactions of 2-Hydroxyacetophenones." European Journal of Organic Chemistry 2017, no. 30 (2017): 4434–38. http://dx.doi.org/10.1002/ejoc.201700909.

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4

Neupert, Adrian, Tina Ress, Jürgen Wittmann, Werner Hummel, and Harald Gröger. "Enantioselective Biocatalytic Reduction of Non-protected Hydroxyacetophenones." Zeitschrift für Naturforschung B 65, no. 3 (2010): 337–40. http://dx.doi.org/10.1515/znb-2010-0317.

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Direct enantioselective reduction of 2´-, 3´- and 4´ -hydroxyacetophenone without protection of the hydroxy moiety was carried out in the presence of (R)- and (S)-alcohol dehydrogenases as biocatalysts. Whereas reduction of 2´-hydroxyacetophenone gave only low to medium conversions, reduction of 3´- and 4´ -hydroxyacetophenone proceeded efficiently leading to the resulting 1-(3- hydroxyphenyl)ethan-1-ol and 1-(4-hydroxyphenyl)ethan-1-ol with high conversion (up to &gt; 95 %) and excellent enantioselectivity (up to &gt; 99% ee).
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5

Assoah, Benedicta, Vesa Riihonen, João R. Vale, Arto Valkonen, and Nuno R. Candeias. "Synthesis of 6,12-Disubstituted Methanodibenzo[b,f][1,5]dioxocins: Pyrrolidine Catalyzed Self-Condensation of 2′-Hydroxyacetophenones." Molecules 24, no. 13 (2019): 2405. http://dx.doi.org/10.3390/molecules24132405.

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The preparation of unprecedented 6,12-disubstituted methanodibenzo[b,f][1,5]dioxocins from pyrrolidine catalyzed self-condensation of 2′-hydroxyacetophenones is herein described. This method provides easy access to this highly bridged complex core, resulting in construction of two C–O and two C–C bonds, a methylene bridge and two quaternary centers in a single step. The intricate methanodibenzo[b,f][1,5]dioxocin compounds were obtained in up to moderate yields after optimization of the reaction conditions concerning solvent, reaction times and the use of additives. Several halide substituted m
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6

Matsuda, Takanori, та Souta Oyama. "Synthesis of unsymmetrical benzils via palladium-catalysed α-arylation–oxidation of 2-hydroxyacetophenones with aryl bromides". Organic & Biomolecular Chemistry 18, № 19 (2020): 3679–83. http://dx.doi.org/10.1039/d0ob00575d.

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7

Om, Prakash, Kumar Ravi, Sharma Deepak, and Bhardwaj Vikas. "Behaviour of o-hydroxyacetophenones towards action of POCI3/DMF (Vilsmeier reagent) in presence of BF3.Et20 : a novel observation in the synthesis of chromones." Journal of Indian Chemical Society Vol. 81, Oct 2004 (2004): 888–90. https://doi.org/10.5281/zenodo.5832903.

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Department of Chemistry, Kurukshetra University, Kurukshetra-136 119, India <em>E-mail</em>: search@granth.kuk.ernet.in; oprakash50@ sify.com <em>Manuscript received 3 September 2003, accepted 11 May 2004</em> The influence of the presence of BF<sub>3</sub>.Et<sub>2</sub>O on the Vilsmeier reactions of <em>o</em>-hydroxyacetophenones and related naphthophenones has been examined. A significant and novel feature of this study is the development of new and facile procedure for the synthesis of some chromones. The reaction offers a first example of monoformylation of <em>o</em>-hydroxyacetophenon
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8

Wang, Enhua, Lishou Yang, Qian Yang, et al. "Polyphosphoric acid-promoted one-pot synthesis and neuroprotective effects of flavanones against NMDA-induced injury in PC12 cells." RSC Advances 12, no. 43 (2022): 28098–103. http://dx.doi.org/10.1039/d2ra03562f.

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9

Kumar, Naresh, Jeremy Dobrowolski, Benjamin Fraser, Mohan Bhadbhade, and David Black. "Efficient Access to Chromeno[4,3-b]quinolines Related to Dependensin." Synlett 28, no. 15 (2017): 1979–83. http://dx.doi.org/10.1055/s-0036-1589087.

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We report a robust synthesis of novel chromeno[4,3-b]quinoline derivatives structurally similar to the natural product dependensin. The target compounds are accessed through the acid-catalysed condensation of 2-aminoacetophenones or 2-aminochalcones with substituted flavanones, which are in turn obtained from 2-hydroxyacetophenones and benzaldehydes.
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10

Chang, Meng-Yang, Kuan-Ting Chen, Yu-Lin Tsai, and Han-Yu Chen. "One-Pot Access to 2-Aryl-3-(arylmethyl)chromones." Synthesis 52, no. 06 (2019): 861–72. http://dx.doi.org/10.1055/s-0039-1690760.

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Sodium hydroxide controlled intermolecular double aldol condensation of o-hydroxyacetophenones with 2 equivalents of aryl­aldehydes provides 2-aryl-3-(arylmethyl)chromones (a chimera of flavone and homoisoflavanone) in MeOH at 50 °C under mild conditions. The uses of various bases and solvents are investigated for one-pot facile and efficient transformation. A plausible mechanism is proposed.
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11

K., R. S. REDDY, SRIMANNARAYANA G., and V. SUBBA RAO N. "Synthesis of 2-Carbomethoxy- and 2-(2-Benzimidazolyl)chromones." Journal of Indian Chemical Society Vol. 63, June 1986 (1986): 600–602. https://doi.org/10.5281/zenodo.6271592.

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Department of Chemistry, University College of Science, Osmania University, Hyderabad-500 007 Manuscript <em>received 26 December 1984, revised 30 June 2985, accepted 8 May 1986</em> <em>ortho</em>-Hydroxyacetophenones on relaxing with diethyl oxalate in methanol con&shy;taining sodium methoxide gives methylchromone-2-carboxylate (2). 2 admixed with <em>o</em>-phenylenediamine on heating in polyphosphoric acid gives 2-(2-benzimidazolyI)- chromone (4) <em>via</em> the anilide (3). Compounds (2-4) inhibited the growth of <em>A. nsger </em>by 70-80% at 100 ppm.
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12

Horie, Tokunaru, Toshihide Yamada, Yasuhiko Kawamura, Masao Tsukayama, and Masafumi Kuramoto. "Oxidation of 2'-hydroxyacetophenones with thallium(III) nitrate in methanol." Journal of Organic Chemistry 57, no. 3 (1992): 1038–42. http://dx.doi.org/10.1021/jo00029a055.

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13

Sharma, Mukesh, Dharmendra Ahuja, Anurekha Jain, and Rakesh Goyal. "Designing and Synthesis of Flavonoids Derivatives and Screening of their Antimicrobial Activity." Journal of Drug Delivery and Therapeutics 9, no. 4-A (2019): 916–20. http://dx.doi.org/10.22270/jddt.v9i4-a.3966.

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Antimicrobial drugs either kill microbes (microbicidal) or prevent the growth of microbes (microbistatic). The streptococcus mutans is a bacteria that found in the human mouth cavity. This bacterial strain produces plaque and acids that break down tooth enamel and cause dental caries. Gram positive cocci, facultatively anaerobic bacteria that forms rod-like chains. the chemical reaction of 2- hydroxyacetophenones with aromatic acylchloride occurs to form 1,3-diketones. This rearrangement reaction proceeds via enolate formation followed by acyl transfer. Then it cyclises into flavone.13 As the
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14

Kamat, Shrivallabh P., Asha M. D'Souza, Shashikumar K. Paknikar, and Philip S. Beauchamp. "A Convenient One-Pot Synthesis of 4-Methyl-3-Phenyl-, 3-Aryl- and 3-Aryl-4-Phenylcoumarins." Journal of Chemical Research 2002, no. 5 (2002): 242–46. http://dx.doi.org/10.3184/030823402103171834.

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Thermal condensation of 2′-hydroxyacetophenones 1a–e with phenylacetic acid 2a in refluxing diphenyl ether gives 4-methyl-3-phenylcoumarins 3a–e. Similarly, reaction of 2-hydroxybenzaldehydes 1f–m and 2-hydroxybenzo-phenones 1n–p with phenylacetic acids 2a–d gives the corresponding 3-arylcoumarins 3f–m and 3-aryl-4-phenylcoumarins 3n–p respectively. Formation of esters 4 and 5 and benzofuran 6 is also observed.
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15

Lee, Jae-In, and Sun-Kyoung Kim. "An Efficient Synthesis of Ring-A Hydroxylated Flavones from 2'-Hydroxyacetophenones." Journal of the Korean Chemical Society 53, no. 3 (2009): 382–86. http://dx.doi.org/10.5012/jkcs.2009.53.3.382.

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16

Cascaval, Alexandru, Adriana Finaru, and Maria Prisecaru. "ChemInform Abstract: Synthesis of 2-Substituted 4-Chromanones Using o- Hydroxyacetophenones." ChemInform 30, no. 28 (2010): no. http://dx.doi.org/10.1002/chin.199928170.

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17

Sharma, Dinesh, and Jagdish Makrandi. "Iodine mediated one-pot synthesis of 3-cyano and 3-cyano-4-methylcoumarins." Journal of the Serbian Chemical Society 79, no. 5 (2014): 527–31. http://dx.doi.org/10.2298/jsc130127140s.

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2-Hydroxybenzaldehydes 1a-e on reaction with malononitrile 2 in the presence of iodine as catalyst give 3-cyanocoumarins 3a-e in one step under thermal heating as well as microwave irradiations. The latter conditions are much more efficient in terms of time (2-5 minutes) and yield as compared to thermal conditions (2-2.5 hours). Following similar procedure, 3-cyano-4-methylcoumarins 3f-i have also been prepared by the reaction of 2-hydroxyacetophenones 1f-i with malononitrile 2.
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18

Vashisth, Neeraj, Satya Parkash Sharma, Surender Kumar, and Aruna Yadav. "Green synthesis of 3-(1-naphthyl), 4-methyl-3-(1-naphthyl) coumarins and 3-phenylcoumarins using dual-frequency ultrasonication." Green Processing and Synthesis 9, no. 1 (2020): 399–404. http://dx.doi.org/10.1515/gps-2020-0042.

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AbstractGreen synthesis of 3-(1-naphthyl), 4-methyl-3-(1-naphthyl) coumarins and 3-phenylcoumarins has been carried out in one step by reacting 2-hydroxybenzaldehydes and 2-hydroxyacetophenones with 1-naphthylacetic anhydride and phenylacetic anhydride, respectively, using dual-frequency ultrasonication, i.e. ultrasonic bath of 40 kHz and probe of 20 kHz. The compounds were obtained in very high yield (80–90%) and their structures were confirmed by infrared and nuclear magnetic resonance data.
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19

HORIE, T., T. AMADA, Y. AWAMURA, M. SUKAYAMA, and M. URAMOTO. "ChemInform Abstract: Oxidation of 2′-Hydroxyacetophenones with Thallium(III) Nitrate in Methanol." ChemInform 23, no. 26 (2010): no. http://dx.doi.org/10.1002/chin.199226129.

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20

Sosnovskikh, V. Ya, V. A. Kutsenko, and I. S. Ovsyannikov. "Condensation of 2-hydroxyacetophenones with trichloroacetonitrile as a route to 2-trichloromethylchromones and 4-hydroxycoumarins." Russian Chemical Bulletin 49, no. 3 (2000): 478–81. http://dx.doi.org/10.1007/bf02494778.

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21

Jagath Reddy, G., D. Latha, C. Thirupathaiah, and K. Srinivasa Rao. "A mild, one-pot synthesis of 3-cyano-4-benzopyrones from 2-hydroxyacetophenones." Tetrahedron Letters 45, no. 4 (2004): 847–48. http://dx.doi.org/10.1016/j.tetlet.2003.11.023.

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22

Yang, Lishou, Enhua Wang, Yanhua Fan, et al. "One-pot synthesis of (E)-3-benzylideneflavanones from 2-hydroxyacetophenones and aromatic aldehydes." Tetrahedron Letters 61, no. 15 (2020): 151180. http://dx.doi.org/10.1016/j.tetlet.2019.151180.

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23

Shokol, T. V., N. V. Gorbulenko та V. P. Khilya. "ChemInform Abstract: Features of the α-Azolyl-2-hydroxyacetophenones Reaction with Chloroacetyl Chloride." ChemInform 43, № 24 (2012): no. http://dx.doi.org/10.1002/chin.201224138.

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24

Wu, Xiao-Feng, Helfried Neumann, and Matthias Beller. "Palladium-Catalyzed Carbonylation Reaction of Aryl Bromides with 2-Hydroxyacetophenones to Form Flavones." Chemistry - A European Journal 18, no. 40 (2012): 12595–98. http://dx.doi.org/10.1002/chem.201202141.

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25

Rani, Nidhi, and Randhir Singh. "Design, Synthesis, Antimicrobial Evaluation and Molecular Modeling Study of New 2-mercaptoimidazoles (Series-III)." Letters in Drug Design & Discovery 16, no. 5 (2019): 512–21. http://dx.doi.org/10.2174/1570180815666181015144431.

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Background: A series of novel substituted 2-mercaptoimidazoles was synthesised efficiently and in high yields using one-pot synthesis from m-hydroxyacetophenones. Methods: The structures of the newly synthesized compounds were established, their molecular activity was investigated against some bacteria and fungi were further validated using molecular docking study. Results: Reaction of o-hydroxyphenacylbromide (2) with substituted aniline and KSCN, in the presence of catalyst p-toluene sulfonic acid afforded 4(a-r) in good yield. The structure of compounds (4a-r) was confirmed by IR, NMR and M
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26

K., D. BANERJI, R. CHATTERJI (Miss), RANGACHARI K., C. DAS S., and K. D. MAZUMDAR A. "Syntheses of some Cinnamoylcoumaran-3-ones." Journal of Indian Chemical Society Vol.66, Nov 1989 (1989): 800–801. https://doi.org/10.5281/zenodo.6076309.

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Chemical Laboratory, P. G. Department of Chemistry, Bhagalpur University, Bhagalpur-812 007 &nbsp;<em>Manuscript received 3 March 1989, accepted 18 June 1989</em> <strong>Five 4&#39;-methoxypheny1-2-cinnanioyloxyacetophenones have been obtained by reaction </strong><strong>of the related hydroxyacetophenones with <em>p</em>-methoxycinnamic acid using pyridine as a solvent and POCl<sub>3</sub>. Bromination with CuBr<sub>2</sub> yielded the </strong><strong>&omega;</strong><strong>-bromo-ester, which on </strong><strong>Baker-Venkataraman rearrangement gave the title compounds, the structures of
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27

Birsa, Mihail Lucian. "Reaction of 4-(2′-Hydroxyaryl)-1,3-dithiolium Salts with Sodium Sulfide. A Selective Synthesis of 2′-Hydroxyacetophenones." Synthetic Communications 33, no. 17 (2003): 3071–76. http://dx.doi.org/10.1081/scc-120022483.

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28

Sosnovskikh, V. Ya, V. A. Kutsenko, and I. S. Ovsyannikov. "ChemInform Abstract: Condensation of 2-Hydroxyacetophenones with Trichloroacetonitrile as a Route to 2-Trichloromethylchromones and 4-Hydroxycoumarins." ChemInform 31, no. 43 (2000): no. http://dx.doi.org/10.1002/chin.200043150.

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29

Politanskaya, Larisa, Evgeny Tretyakov, and Chanjuan Xi. "Synthesis of polyfluorinated o-hydroxyacetophenones – convenient precursors of 3-benzylidene-2-phenylchroman-4-ones." Journal of Fluorine Chemistry 229 (January 2020): 109435. http://dx.doi.org/10.1016/j.jfluchem.2019.109435.

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30

K., D. BANERJI, R. CHATTERJI (Miss), RANGACHARI K., DAS S.C., and K. D. MAZUMDAR A. "Syntheses of some Cinnamoylcoumaran-3-ones." Journal of Indian Chemical Society Vol. 66, Nov 1989 (1989): 800–801. https://doi.org/10.5281/zenodo.6090820.

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Chemical Laboratory. P. G. Department of Chemistry, Bhagalpur University, Bhagalpur-812 007 <em>Manuscript received 3 March 1989, accepted 18 June 1989</em> Five 4&#39;-methoxyphenyl-2-cinnamoyloxyacetophenones have been obtained by reaction of the related hydroxyacetophenones with <em>p</em>-methoxycinnamic acid using pyridine as a solvent and POCI<sub>3</sub>. Bromination with CuBr<sub>1&nbsp;&nbsp;</sub>yielded the <em>\(\mathfrak{w}\)</em>&middot;bromo-ester, which on Baker-Venkataraman rearrangement gave the title compounds, the structures of which were confirmed by analysis and spectral
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31

UTTAM, K. MALLIK, M. SAHA MURARI, and K. MALLIK ASOK. "Studies on Formation of 3-Arylideneflavanones in Alkaline Medium." Journal of Indian Chemical Society Vol. 67, June 1990 (1990): 478–81. https://doi.org/10.5281/zenodo.6164124.

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Department of Chemistry, Jadavpur University, Calcutta-700 032 <em>Manuscript received 10 November 1989,&nbsp; accepted 7 February 1990</em> Among the 2-hydroxyacetophenones (2a- e) only 2a bearing a 5-OH group has been found to form 3-arylideneflavanones during condensation with aromatic aldehydes in alkaline medium. The observed inability of&nbsp; 2b and 2c in this respect contradicts the findings of several recent reports Moreover, the <sup>1</sup>H nmr spectral data of the alleged 3-arylideneflavanones do not correspond to those for any geometrical isomer of these compounds.
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32

Basha, G. Mahaboob, S. Kumar Yadav, R. Srinuvasarao, et al. "A mild and efficient protocol to synthesize chromones, isoflavones, and homoisoflavones using the complex 2,4,6-trichloro-1,3,5-triazine/dimethylformamide." Canadian Journal of Chemistry 91, no. 8 (2013): 763–68. http://dx.doi.org/10.1139/cjc-2013-0137.

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A mild and efficient one-flask method has been developed for the synthesis of chromones, isoflavones, and homoisoflavones from 2-hydroxyacetophenones, deoxybenzoins, and dihydrochalcones, respectively, via one-carbon extension using the complex 2,4,6-trichloro-1,3,5-triazine/dimethylformamide. Deoxybenzoins and dihydrochalcones were prepared in situ by the reaction of readily available substituted phenols with phenylacetic acids and 3-phenylpropanoic acids, respectively. This method allows the synthesis of a wide range of compounds with multiple phenolic hydroxyls and other substituents. The m
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33

Mizuno, Takumi, Ikuzo Nishiguchi, Tsuneaki Hirashima, Akiya Ogawa, Nobuaki Kambe, and Noboru Sonoda. "Facile Synthesis of 4-Hydroxycoumarins by Sulfur-Assisted Carbonylation of 2′-Hydroxyacetophenones with Carbon Monoxide." Synthesis 1988, no. 03 (1988): 257–59. http://dx.doi.org/10.1055/s-1988-27537.

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34

Warshawsky, A., N. Kahana, E. Beery, G. Kessler-Icekson, A. Novogrodsky, and J. Nordenberg. "Cytotoxicity effects of transition-metal chelators of the 5-substituted 2-hydroxyacetophenones and their oximes." European Journal of Medicinal Chemistry 30, no. 7-8 (1995): 553–60. http://dx.doi.org/10.1016/0223-5234(96)88269-9.

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35

Wu, Xiao-Feng, Helfried Neumann, and Matthias Beller. "ChemInform Abstract: Palladium-Catalyzed Carbonylation Reaction of Aryl Bromides with 2-Hydroxyacetophenones to Form Flavones." ChemInform 44, no. 11 (2013): no. http://dx.doi.org/10.1002/chin.201311140.

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36

Belaya, Natalia I., and Alexander V. Belyi. "SEMI-EMPIRICAL MODEL FOR PREDICTING PHENOL CARBOXYLIC ACIDS ANTIRADICAL ACTIVITY." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 7 (2019): 80–84. http://dx.doi.org/10.6060/ivkkt.20196207.5952.

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Using the spectral method, the rate constants of natural phenolcarboxylic acids reaction with the radical 2,2'-diphenyl-1-picrylhydrazyl in benzene at a temperature of 293±2 K were determined. It is established that the reaction corresponds to the second-order kinetic equation and proceeds by the mechanism of the hydrogen atom transfer. This confirmed by the presence of the deuterium isotope effect. The parameter, affecting the proceed of this mechanism in a non-polar medium, is the energy of the homolytic rupture of the weakest phenolic O–H bond in the phenolcarboxylic acid molecule, calculat
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37

Ohno, Masatomi, Motohisa Ido, Sadahiro Shimizu, and Shoji Eguchi. "A Facile Synthesis of 2-Phenylimino-3(2H)-benzofuranones from the Silyl Enol Ether of 2-Hydroxyacetophenones and Nitrosobenzene." Synthesis 1990, no. 08 (1990): 703–4. http://dx.doi.org/10.1055/s-1990-26988.

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38

Matamoros, Esther, Pedro Cintas, Mark E. Light, and Juan C. Palacios. "Electronic effects in tautomeric equilibria: the case of chiral imines from d-glucamine and 2-hydroxyacetophenones." Organic & Biomolecular Chemistry 17, no. 48 (2019): 10209–22. http://dx.doi.org/10.1039/c9ob02147g.

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39

Ali, Syed Mashhood, Mohd Ilyas, and Shigeo Tanimoto. "Reaction of 2-Hydroxyacetophenones with Thionyl Chloride in the Presence of a Catalytic Amount of Pyridine." Bulletin of the Chemical Society of Japan 61, no. 9 (1988): 3289–93. http://dx.doi.org/10.1246/bcsj.61.3289.

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40

Pouget, Christelle, Patrick Trouillas, Rokhaya Gueye, et al. "Exploring the Use of the Suzuki Coupling Reaction in the Synthesis of 4′-Alkyl-2′-hydroxyacetophenones." Synlett 25, no. 04 (2013): 564–68. http://dx.doi.org/10.1055/s-0033-1340312.

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41

A.S., Mohamed Halith, and Sivakumar T. "Synthesis and Chemical Characterisation of Some Novel Substituted Flavone’s for It’s Anti Microbial Activity." International Journal of Drug Design and Discovery 2, no. 2 (2024): 497–505. https://doi.org/10.37285/ijddd.2.2.9.

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The present study reports an experiment on some derivatives of 2-phenyl-chromen-4-one (flavone ring) have a proven inhibitory activity against a variety of human pathogens, including antibiotic-resistant Gram-positive and Gram-negative bacteria and antifungal activities screened against four human pathogenic bacteria and two phytopathogenic fungi. Flavanoid derivatives have been made through Algar– Flynn–Oyamada reaction from hydroxyacetophenones and aromatic-aldehydes. The structures of the synthesized compounds were elucidated by UV, IR and 1H NMR spectroscopic techniques, and elemental anal
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42

Hu, Biao, Qiaohe Zhang, Siyun Zhao, et al. "Direct Oxidative Disulfenylation/Cyclization of 2′‐Hydroxyacetophenones with Thiophenols for the Synthesis of 2,2‐Dithio‐Benzofuran‐3(2 H )‐Ones." Advanced Synthesis & Catalysis 361, no. 1 (2018): 49–54. http://dx.doi.org/10.1002/adsc.201801138.

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43

OHNO, M., M. IDO, S. SHIMIZU, and S. EGUCHI. "ChemInform Abstract: A Facile Synthesis of 2-Phenylimino-3(2H)-benzofuranones from the Silyl Enol Ether of 2-Hydroxyacetophenones and Nitrosobenzene." ChemInform 22, no. 1 (2010): no. http://dx.doi.org/10.1002/chin.199101175.

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44

Pouget, Christelle, Patrick Trouillas, Rokhaya Gueye, et al. "ChemInform Abstract: Exploring the Use of the Suzuki Coupling Reaction in the Synthesis of 4′-Alkyl-2′-hydroxyacetophenones." ChemInform 45, no. 33 (2014): no. http://dx.doi.org/10.1002/chin.201433052.

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45

KALE, NITIN V., SUPRIYA P. SALVE, BHASKAR H. ZAWARE, et al. "Synthesis, Characterization and Biological Activities of Pyrazole Based Heterocycles." Asian Journal of Chemistry 34, no. 3 (2022): 583–90. http://dx.doi.org/10.14233/ajchem.2022.23556.

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Abstract:
In this work, a unique pyrazolyl compounds comprising flourine and thiophene were synthesized. In brief, esters 3a-f were synthesized by reacting thiophene and pyrazolyl acid (1) with various 2-hydroxyacetophenones (2a-f). The 1,3-diketones 4a-f were formed by Baker- Venkataraman rearrangement of esters 3a-f. Compounds 4a-f were cyclized to form chromene derivatives 5a-f, which further converted into pyrazolyl derivatives 6a-f. The majority of the compounds in series 3a-f, 4a-f, 5a-f and 6a-f showed promising antibacterial activity against S. typhii, S. aureus, B. subtilis and E. coli. Compoun
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46

Yamashiro, Takashi, Kodai Narita, Kanji Sato, Masayuki Nomura та Shinichi Nakata. "Synthesis of Chalcone and Flavanone Derivatives from Condensation of 2’-Hydroxyacetophenones and Benzaldehyde over Basic β-Zeolites". Journal of the Japan Petroleum Institute 53, № 6 (2010): 351–54. http://dx.doi.org/10.1627/jpi.53.351.

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47

Balha, Megha, Buddhadeb Mondal, Subas Chandra Sahoo та Subhas Chandra Pan. "Organocatalytic Asymmetric Michael-Hemiacetalization Reaction Between 2-Hydroxyacetophenones and Enals: A Route to Chiral β,γ-Disubstituted γ-Butyrolactones". Journal of Organic Chemistry 82, № 12 (2017): 6409–16. http://dx.doi.org/10.1021/acs.joc.7b00363.

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48

Shul’gin, V. F., Yu V. Trush, E. B. Rusanov, V. Ya Zub, and V. V. Minin. "Structure and EPR spectra of binuclear copper(II) complexes with acyldihydrazones of benzenedicarboxylic acids and 5-substituted 2-hydroxyacetophenones." Russian Journal of Inorganic Chemistry 55, no. 5 (2010): 757–63. http://dx.doi.org/10.1134/s0036023610050165.

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49

Chang, Meng-Yang, Han-Yu Chen та Yu-Lin Tsai. "Temperature-Controlled Desulfonylative Condensation of α-Sulfonyl o-Hydroxyacetophenones and 2-Formyl Azaarenes: Synthesis of Azaaryl Aurones and Flavones". Journal of Organic Chemistry 84, № 1 (2018): 326–37. http://dx.doi.org/10.1021/acs.joc.8b02857.

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50

Politanskaya, Larisa, Jiaying Wang, Yulia Meshkova, et al. "Synthesis of fluorinated 4H-chromen-4-ones from 2-hydroxyacetophenones and in vitro evaluation of their anticancer and antiviral activity." Journal of Fluorine Chemistry 283-284 (April 2025): 110421. https://doi.org/10.1016/j.jfluchem.2025.110421.

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