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Journal articles on the topic 'Claisen-Schmidt condensation'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Chandrasekaran, Indhu, and S. Sarveswari. "Synthesis and photophysical properties of novel bis-quinolin-3-yl-chalcones." RSC Advances 14, no. 41 (2024): 30385–95. http://dx.doi.org/10.1039/d4ra04335a.

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2

Din, Zia Ud, Alef dos Santos, Marilia Almeida Trapp, et al. "Curcumin inspired synthesis of unsymmetrical diarylpentanoids with highly potent anti-parasitic activities: in silico studies and DFT-based stereochemical calculation." MedChemComm 7, no. 5 (2016): 820–31. http://dx.doi.org/10.1039/c5md00599j.

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3

Endud, Salasiah Binti, and Nadirah Zawani Binti Mohd Nesfu. "Bimetallic Basic Catalyst Comprising Niobium and Cesium Supported on MCM-48 for the Claisen-Schmidt Condensation." Advanced Materials Research 545 (July 2012): 379–84. http://dx.doi.org/10.4028/www.scientific.net/amr.545.379.

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The Claisen–Schmidt condensations stand out to be important reaction in carbon–carbon bond formation as well as in the preparation of fine chemicals and intermediates with the presence of base catalyst such as NaOH. However, only few studies concern the synthesis and catalytic activity of mesoporous silica containing bimetallic compound as catalyst for aldol condensation of bulky aldehydes. The advantages of mesoporous systems with respect to zeolites are the improved reactant accessibility to the active sites and enhanced catalyst stability. Mesoporous silica with exceedingly high surface are

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4

Alrubaie, Leaqaa A., Raheem J. Muhasin та Mazin N. Mousa. "Synthesis, characterization and evaluation of antiinflammatory properties of novel α, β-unsaturated ketones". Tropical Journal of Pharmaceutical Research 19, № 1 (2020): 147–54. http://dx.doi.org/10.4314/tjpr.v19i1.22.

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Purpose: To prepare and characterize alicyclic aromatic chalcone derivatives, and study their antibiotic and anti-inflammatory properties.Methods: Claisen-Schmidt (aldol condensation) base-catalyzed condensation was used for preparation of chalcone derivatives (compounds I - IV), and the products were characterized using ultraviolet-visible spectroscopy (UV), FT-IR spectroscopy, proton nuclear magnetic resonance (1H-NMR), carbone 13CNMR and mass spectroscopy (MS). The antibacterial effect of the compounds was determined against Baci. cereus, Staph. Aureus, E. coli, and Pseudomonas Aeruginosa.

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5

Hayashi, Shun, Seiji Yamazoe, Kiichirou Koyasu, and Tatsuya Tsukuda. "Application of group V polyoxometalate as an efficient base catalyst: a case study of decaniobate clusters." RSC Advances 6, no. 20 (2016): 16239–42. http://dx.doi.org/10.1039/c6ra00338a.

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We demonstrated for the first time that [Nb<sub>10</sub>O<sub>28</sub>]<sup>6−</sup> exhibited base catalytic activity for aldol-type condensation reactions including Knoevenagel and Claisen–Schmidt condensation reactions.

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6

Yi, Fengping, Yanqing Peng, Gonghua Song, and Jizong Li. "Solid Phase Synthesis of Aminochalcones." Journal of Chemical Research 2005, no. 5 (2005): 311–12. http://dx.doi.org/10.3184/0308234054323931.

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7

Sebti, Saı̈d, Ahmed Saber, Abdallah Rhihil, Rachid Nazih, and Rachid Tahir. "Claisen–Schmidt condensation catalysis by natural phosphate." Applied Catalysis A: General 206, no. 2 (2001): 217–20. http://dx.doi.org/10.1016/s0926-860x(00)00604-9.

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8

Yang, Shuliang, Peipei Huang, Li Peng, et al. "Hierarchical flowerlike magnesium oxide hollow spheres with extremely high surface area for adsorption and catalysis." Journal of Materials Chemistry A 4, no. 2 (2016): 400–406. http://dx.doi.org/10.1039/c5ta08542j.

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3D hierarchical flowerlike MgO hollow spheres with extremely high surface area showed excellent adsorption properties for heavy metal ions and catalytic properties for the Claisen–Schmidt condensation reaction.

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9

Asmau, Nasiru Hamza, and Kizito Igomu George. "Microwave Assisted Synthesis and Antimicrobial Screening of 3-(4-Methoxy)-1-Phenylprop-2-en-1-One." Pharmaceutical and Chemical Journal 3, no. 2 (2016): 300–303. https://doi.org/10.5281/zenodo.13754340.

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In an effort to develop novel antimicrobial agents, 3-(4-methoxy)-1-phenylprop-2-en-1-one was synthesized from acetophenone and methoxybenzaldehyde using the conventional Claisen-Schmidt condensation and microwave assisted methods. The conventional Claisen-Schmidt condensation afforded a yield of 35.29% in three hours. Whereas, the microwave assisted method gave 73.94% yield of 3-(4-methoxy)-1-phenylprop-2-en-1-one with two minutes. The synthesized 3-(4-methoxy)-1-phenylprop-2-en-1-one was characterized by means of Fourier transform Infrared (FTIR) spectroscopy, Shinoda’s test and meltin

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10

Abdolahi, Sahar, and Mohammad Soleiman-Beigi. "Exploring the catalytic activity of –NHSO₃H functionalized natural asphalt: a sustainable and efficient catalyst for condensation reactions in water." RSC Advances 15, no. 12 (2025): 9280–94. https://doi.org/10.1039/d5ra00870k.

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Natural asphalt sulfamic acid (NA-NHSO3H) was synthesized through the functionalization of natural asphalt (NA). The catalytic performance of NA-NHSO3H was evaluated in Knoevenagel and Claisen–Schmidt condensation reactions under mild conditions.

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11

Adabella, Eunike, Cindy A. W. Oei, Vania A. Rantetasak, Tutuk Budiati, and Ami Soewandi. "Microwave-Assisted Synthesis of Bis-(Hydroxybenzylidene)-Cycloalkanones via Acid Catalyzed Claisen-Schmidt Condensation." Chemistry & Chemical Technology 18, no. 3 (2024): 350–55. http://dx.doi.org/10.23939/chcht18.03.350.

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In the present study, bis-(hydroxybenzylidene)cycloalkanone derivatives were synthesized by Claisen-Schmidt condensation using cycloalkanones and arylaldehydes in the presence of HCl as an acid catalyst. The synthetic reaction was carried out under microwave irradiation. The structure of the synthesized compounds was determined by UV, IR, 1H NMR spectroscopic methods. The obtained reaction yields were not optimal due to the self-polymerization of p-hydroxybenzaldehyde in an acid solution.

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12

Singh, Gurjaspreet, Jandeep Singh, Satinderpal Singh Mangat, and Aanchal Arora. "Synthetic approach towards ‘click’ modified chalcone based organotriethoxysilanes; UV-Vis study." RSC Adv. 4, no. 105 (2014): 60853–65. http://dx.doi.org/10.1039/c4ra08724k.

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The efficient linkage of a conjugate chalcone to n-propyltriethoxysilanes via a 1,2,3-triazole is reported. The synthesis involves a Claisen–Schmidt condensation followed by a copper(i) catalyzed azide–alkyne cycloaddition (CuAAC) reaction.

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13

Kalalbandi, Veerendra Kumar A., J. Seetharamappa, and Umesha Katrahalli. "Synthesis, crystal studies and in vivo anti-hyperlipidemic activities of indole derivatives containing fluvastatin nucleus." RSC Advances 5, no. 48 (2015): 38748–59. http://dx.doi.org/10.1039/c5ra02908b.

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As a part of our efforts to prepare better analogues of fluvastatin for the treatment of hyperlipidemia, we have synthesized some indole derivatives containing a fluvastatin nucleus by methanol mediated Claisen–Schmidt aldol condensation reaction.

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14

Zăvoianu, Rodica, Mădălina Tudorache, Vasile I. Parvulescu, Bogdan Cojocaru, and Octavian D. Pavel. "New MgFeAl-LDH Catalysts for Claisen–Schmidt Condensation." Molecules 27, no. 23 (2022): 8391. http://dx.doi.org/10.3390/molecules27238391.

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A rapid, cheap and feasible new approach was used to synthesize the Mg0.375Fe0.375Al0.25-LDH in the presence of tetramethylammonium hydroxide (TMAH), as a nontraditional hydrolysis agent, applying both mechano-chemical (MC) and co-precipitation methods (CP). For comparison, these catalysts were also synthesized using traditional inorganic alkalis. The mechano-chemical method brings several advantages since the number of steps and the energy involved are smaller than in the co-precipitation method, while the use of organic alkalis eliminates the possibility of contaminating the final solid with

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15

KAZANTSEVA, V. M., and S. P. KORSHUNOV. "ChemInform Abstract: Claisen-Schmidt Condensation in Aprotic Solvents." ChemInform 26, no. 17 (2010): no. http://dx.doi.org/10.1002/chin.199517067.

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16

Dhakshinamoorthy, Amarajothi, Mercedes Alvaro, and Hermenegildo Garcia. "Claisen-Schmidt Condensation Catalyzed by Metal-Organic Frameworks." Advanced Synthesis & Catalysis 352, no. 4 (2010): 711–17. http://dx.doi.org/10.1002/adsc.200900747.

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17

Sun, Ruolun, Chenhui Han, and Jingsan Xu. "A green synthesis approach toward large-scale production of benzalacetone via Claisen–Schmidt condensation." RSC Advances 12, no. 45 (2022): 29240–45. http://dx.doi.org/10.1039/d2ra05320a.

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A stirring-induced emulsion system enables 99% selectivity to the mono-condensation product of a Claisen–Schmidt reaction. The system showed good cyclic performance and can be easily scaled up to kilogram-level for the production of benzalacetone.

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18

Alharthi, Abdulrahman I. "Efficient Catalytic Performance of Calcined Tungstophosphoric Acid for the Claisen-Schmidt Condensation under Solvent-Free Reaction." Asian Journal of Chemistry 31, no. 11 (2019): 2579–84. http://dx.doi.org/10.14233/ajchem.2019.22219.

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Effect of calcination of tungstophosphoric acid catalyst was evaluated in terms of the synthesis of chalcone derivatives via Claisen-Schmidt condensation using the reaction of acetophenone and several substituted aldehydes. The catalyst was characterized before and after calcination by FT-IR to assess the effectiveness of the synthesis of the desired products. The calcined tungstophosphoric acid catalyst (HPW-CL) showed a better performance and high yield of Claisen-Schmidt products in a short period of time. It was also found out that the calcined tungstophosphoric acid provides a chemo selec

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19

Ispán, Dávid, Bence Varga, Szabolcs Balogh, Balázs Zsirka, Ágnes Gömöry, and Rita Skoda‐Földes. "Claisen‐Schmidt Condensation and Domino Claisen‐Schmidt Condensation ‐ Michael Addition of 16‐Formyl Steroids in the Presence of Switchable Polarity Solvents." ChemistrySelect 6, no. 23 (2021): 5705–10. http://dx.doi.org/10.1002/slct.202100886.

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20

A. Yousif, Abdullah, and Ghazwan F. Fadhil. "Novel Photosynthesis of 5,8a-dichloro-2-(4- Methoxyphenyl)-8ah-chromene from Its Chalcone Isomer And Ft-ir, 1 H And 13 C Nmr Spectroscopic Investigation." Journal Of Duhok University 23, no. 2 (2020): 118–34. http://dx.doi.org/10.26682/sjuod.2020.23.2.14.

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In the presence of alcoholic alkali, the base-catalyzed aldol condensation of equimolar quantities of substituted acetophenones and aldehydes to give good yields of condensation product. This reaction is known as the Claisen-Schmidt condensation. The Trans-3-(2,6-dichlorophenyl)-1-(4-methoxyphenyl)prop- 2-en-1-one (trans 2,6-methoxy chalcone) was synthesised by Clasien Schmidt reaction, then it exposed to the Xenon lamp to prepare the 5,8a-dichloro-2-(4-methoxyphenyl)-8aH-chromene (2,6-methoxy chromene). A number of techniques were used to characterise the mentioned two products such as, thin

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21

Arslan, Tayfun, and Nurettin Yaylı. "Conventional and microwave-irradiated synthesis of new bischalcone derivatives." Journal of Chemical Research 43, no. 1-2 (2019): 8–13. http://dx.doi.org/10.1177/1747519819831848.

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A series of 12 novel methyl- and halogen-substituted bischalcones containing an azo linkage was synthesized by a Claisen–Schmidt condensation between ( E)-1-{4-[(4-acetyl-2-hydroxyphenyl)diazenyl]phenyl}ethanone and various araldehydes using microwave irradiation and conventional procedures and the results were compared.

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22

Mirjalilia, Bi Bi Fatemeh, Abddhamid Bamoniri, Masoumeh Alipour, and Mohammad Ali Karimi Zarchia. "Zr(HSO4)4/SiO2 as an Efficient Alternative Catalyst for the Claisen-Schmidt Condensation." Zeitschrift für Naturforschung B 63, no. 12 (2008): 1421–24. http://dx.doi.org/10.1515/znb-2008-1213.

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Zr(HSO4)4/SiO2 promotes the regio-, stereo- and chemoselective Claisen-Schmidt condensation of aromatic aldehydes with ketones under solvent-free conditions with improved yields. The work-up of the reaction mixture is simple, and the catalyst is easily removed from the products by simple filtration.

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23

Parekh, A. K., and K. K. Desai. "Synthesis and Antibacterial Activity of Chalcones and Pyrimidine-2-ones." E-Journal of Chemistry 2, no. 2 (2005): 109–12. http://dx.doi.org/10.1155/2005/134830.

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Some new chalcones have been prepared by Claisen-schmidt condensation of ketone and different aromatic aldehydes. These chalcones on condensation with urea in presence of acid gave Pyrimidine-2-ones. The synthesized compounds have been characterized by elemental analysis, IR and1H NMR spectral data. They have been screened for their antibacterial activity against Gram positive bacteria B. subtillis & S. aureus and Gram negative bacteria E. coli & S. typhi.

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24

Song, Yanlei, Xincheng Wang, Chongpin Huang, Fengbing Liang, Zhichao Yu, and Biaohua Chen. "Claisen-Schmidt Condensation Catalyzed by Alkaline Poly(ionic liquid)." Chinese Journal of Organic Chemistry 33, no. 8 (2013): 1715. http://dx.doi.org/10.6023/cjoc201301049.

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25

Yang, Yong-Qing, Meng-Nan Zhu, Zheng Lu, Li-Ting Chen, and Jing Su. "Claisen-Schmidt Condensation Involved with C—C Bond Cleavage." Chinese Journal of Organic Chemistry 36, no. 5 (2016): 1073. http://dx.doi.org/10.6023/cjoc201509040.

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26

Ziani, Nouara, Assia Sid, Albert Demonceau, Quentin Willem, Benjamin Dassonneville, and Kaddour Lamara. "Synthesis of new curcumin analogues from Claisen-Schmidt condensation." European Journal of Chemistry 4, no. 2 (2013): 146–48. http://dx.doi.org/10.5155/eurjchem.4.2.146-148.756.

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27

Winter, Caroline, Jéssika Nunes Caetano, Anderson Barros Caixeta Araújo, et al. "Activated carbons for chalcone production: Claisen-Schmidt condensation reaction." Chemical Engineering Journal 303 (November 2016): 604–10. http://dx.doi.org/10.1016/j.cej.2016.06.058.

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28

Toledo-Flores, Susana, Roberto Portillo, Gloria Del Angel, and Ricardo Gómez. "Claisen-Schmidt condensation reaction on BaO-ZrO2 mixed oxides." Reaction Kinetics and Catalysis Letters 92, no. 2 (2007): 361–68. http://dx.doi.org/10.1007/s11144-007-5188-z.

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29

Mogilaiah, K., and R. Babu Rao. "ChemInform Abstract: Claisen-Schmidt Condensation in the Solid State." ChemInform 31, no. 3 (2010): no. http://dx.doi.org/10.1002/chin.200003148.

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30

Mogilaiah, K., T. Kumara Swamy, A. Vinay Chandra, N. Srivani, and K. Vidya. "ChemInform Abstract: Claisen-Schmidt Condensation under Solvent-Free Conditions." ChemInform 41, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.201030157.

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31

S.N., Ipper 1. N.K. Raut 2. P.P. Dixit 3. G.K. Kakade 4. "SYNTHESIS, SPECTRAL STUDY AND PROPERTIES OF (E)-3-(5-BROMOFURAN-2-YL)-1-(2,6-DIHYDROXYPHENYL)PROP-2-EN-1-ONE." Journal of Pharma Research 7, no. 10 (2018): 220–23. https://doi.org/10.5281/zenodo.1468474.

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<strong><em>ABSTRACT</em></strong> <em>(E)-3-(5-bromofuran-2-yl)-1-(2,6-dihydroxyphenyl)prop-2-en-1-one </em><em>was synthesized by  Claisen Schmidt condensation method in alkaline medium. The </em><em>Chalcone of 5-Bromo furfural </em><em>was characterized by IR, UV-Visible, <sup>1</sup>H NMR, Mass spectra, CHO analysis and chemical tests. This is stable solid compound having yellowish brown   color with molecular formula </em><em>[C<sub>13</sub>H<sub>9</sub>O<sub>4</sub>Br]</em><em>.</em> <strong><em>KEYWORDS:</em></strong><em> Chalcone, acetophenone, UV-visible, IR, <sup>1</s

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32

Wang, Hongshe, and June Zeng. "Iodine-catalyzed efficient synthesis of chalcones by grinding under solvent-free conditions." Canadian Journal of Chemistry 87, no. 9 (2009): 1209–12. http://dx.doi.org/10.1139/v09-106.

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Chalcones are useful intermediates in organic synthesis and exhibit a large number of different biological activities. Chalcones have been synthesized in high yields by Claisen–Schmidt condensation of substituted acetophenones with various aromatic aldehydes in the presence of 10 mol% of iodine at room temperature by grinding under solvent-free conditions.

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33

Zhao, Pu-Su, Xian Wang, Huan-Mei Guo, and Fang-Fang Jian. "3-(4-Fluorophenyl)-1-(4-methoxyphenyl)prop-2-en-1-one." Acta Crystallographica Section E Structure Reports Online 65, no. 6 (2009): o1402. http://dx.doi.org/10.1107/s1600536809018121.

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The title compound, C16H13FO2, was prepared from 4-methoxyhypnone and 4-fluorobenzophenone by Claisen–Schmidt condensation. All the bond lengths and bond angles are in normal ranges. The dihedral angle formed by the two benzene rings is 33.49 (2)°. The crystal packing is stabilized by intermolecular C—H...O hydrogen-bonding interactions.

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34

Aparana Surendra Dighade. "A review: Synthesis of azachalcone and its biological activity." World Journal of Advanced Research and Reviews 25, no. 3 (2025): 1626–31. https://doi.org/10.30574/wjarr.2025.25.3.0885.

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The heterogeneous chemical potential of azachalcone has six-membered motifs containing nitrogen in the ring, leading to active research in their synthetic methodologies. This paper summarizes various methods via aldol reaction, Claisen-Schmidt condensation, molecular hybridization, environmentally trendy microwave-assisted method etc. to acquire azachalcones and their derivatives along with biological activities.

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35

Mardjan, Muhammad Idham Darussalam, Retno Ambarwati, Sabirin Matsjeh, Tutik Dwi Wahyuningsih, and Winarto Haryadi. "SYNTHESIS OF FLAVANONE-6-CARBOXYLIC ACID DERIVATIVES FROM SALICYLIC ACID DERIVATIVE." Indonesian Journal of Chemistry 12, no. 1 (2012): 70–76. http://dx.doi.org/10.22146/ijc.21374.

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Synthesis of flavanone-6-carboxylic acid derivatives had been conducted via the route of chalcone. The synthesis was carried out from salicylic acid derivative, i.e. 4-hydroxybenzoic acid, via esterification, Fries rearrangement, Claisen-Schmidt condensation and 1,4-nucleophilic addition reactions. Structure elucidation of products was performed using FT-IR, 1H-NMR, GC-MS and UV-Vis spectrometers. Reaction of 4-hydroxybenzoic acid with methanol catalyzed with sulfuric acid produced methyl 4-hydroxybenzoate in 87% yield. The acid-catalyzed-acetylation of the product using acetic anhydride gave

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36

Desai, Dr Arpitaben P., and Patel Drashti K. "Synthesis of Chalcone Derivatives and its Antimicrobial Activities." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 07, no. 11 (2023): 1–11. http://dx.doi.org/10.55041/ijsrem27306.

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To investigate the in vitro antibacterial activity of these chalcones against Gram-positive and Gram- negative bacteria as well as fungi, a series of five chalcones that closely mimic those found in nature were created. By the Claisen-Schmidt condensation and a green chemistry procedure that used sodium hydroxide as a catalyst in clean water, chalcones were produced from acetophenone and substituted benzaldehydes with good yields. Amoxicillin and fluconazole were used as standards for the antimicrobial assessment, which was done using the filter paper disc plate technique on a set of chosen ba

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37

Ishkov, Yurij V., Zinaida I. Zhilina, and Ludmila P. Barday. "The interaction of formylporphyrins with weak CH-acids." Journal of Porphyrins and Phthalocyanines 07, no. 11 (2003): 761–65. http://dx.doi.org/10.1142/s1088424603000938.

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A series of 2(α,β-unsaturated-γ-keto)-5,10,15,20-tetraphenylporphyrins was obtained by condensation of 2-formyl-5,10,15,20-tetraphenylporphyrin with acetone, 1,4-diacetylbenzene, 2-acetylthiophene, acetylacetone and acetophenone according to the Claisen-Schmidt reaction. The condensation product with 1,4-diacetylbenzene could react similarly with another formyl derivative – quinoxalin-6-carboxaldehyde and 2-formyl-5,10,15,20-tetraphenylporphyrin. It is shown that this reaction passes through formation of iminium salt formylporphyrin in presence of free base piperidine and perchloric acid.

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38

Hussein, Mohammed S., Abdul Wahab J. Al-Hamdany, and Rana A. Saeed. "Synthesis and Spectral Characterization of Some New Substituted Bis-spirocyclohexanones Derived from Acetone." Science Journal of University of Zakho 6, no. 4 (2018): 155–59. http://dx.doi.org/10.25271/sjuoz.2018.6.4.548.

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Diarylidene acetones (DAA) (1-5) had been prepared by the condensation of acetone with substituted benzaldehydes via Claisen-Schmidt reaction, DAA’s brought to condense with anthrone to afford the title compounds (6-10) through Michael addition. The structures of the products were suggested in the light of spectral data (UV, IR, 1H&13C-NMR).

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39

Kozmík, Václav, Pavel Lhoták, Želmíra Odlerová, and Jaroslav Paleček. "Azachalcone Derivatives and Their Bis Substituted Analogs as Novel Antimycobacterial Agents." Collection of Czechoslovak Chemical Communications 63, no. 5 (1998): 698–712. http://dx.doi.org/10.1135/cccc19980698.

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Fifteen novel substituted azachalcone derivatives and their bis substituted analogs were prepared from 3,5-diacetyl-2,6-dimethylpyridine by the Claisen-Schmidt condensation. The influence of the reaction conditions on the yield of mono- and bischalcones was studied to optimize the reaction. Spectral characteristics along with preliminary results of antimycobacterial activity of selected compounds are given.

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40

Suwito, Hery, Ria Sari, Kautsar Ul Haq, and Alfinda Kristanti. "5-[3-(4-Bromophenyl)-1-(2,5-dimethoxyphenyl)-3-oxopropyl]-1,3-dimethylpyrimidine-2,4,6(1H,3H,5H)-tri-one." Molbank 2018, no. 3 (2018): M1013. http://dx.doi.org/10.3390/m1013.

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The title compound was prepared by a two-step reaction. The first step was the formation of a chalcone derivative using Claisen–Schmidt condensation, which was followed by the Michael addition of the formed chalcone with 1,3-dimethylbarbituric acid. The structure of the prepared compound was established by spectral data: FTIR, HRESIMS, 1H- and 13C-NMR.

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41

Prasad, Y. Rajendra, P. Praveen Kumar, P. Ravi Kumar, and A. Srinivasa Rao. "Synthesis and Antimicrobial Activity of Some New Chalcones of 2-Acetyl Pyridine." E-Journal of Chemistry 5, no. 1 (2008): 144–48. http://dx.doi.org/10.1155/2008/602458.

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Six new chalcones were synthesised by condensing 2-acetyl pyridine with aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation. All these compounds were characterised by means of their IR,1H NMR spectroscopic data and microanalyses. The antimicrobial activity of these compounds was evaluated by the cup plate method.

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42

Rathod, Seema P., and Awinash S. Chavan. "Design and Synthesis of Flavonoid Derivatives as Anti-inflammatory Drug." Der Pharma Chemica 15, no. 6 (2023): 5. https://doi.org/10.5281/zenodo.13353509.

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A series of 2-(3’-aminesubstituted)-7-hydroxyl-4H-1-benzopyran-4-one amine derivatives has been synthesized on the basis of molecular docking results. The novel derivatives prepared by condensation of 2,4-Dihydroxyacetophenonee (1.40 ml) and 3-chlorobenzaldehyde (0.01 mole) through Claisen-Schmidt condensation reaction. Novel flavone derivatives were access for anti-inflammatory activity by using carrageenan induced rat paw edema method. Among the synthesized compounds (t, v, w, k) shows good anti-inflammatory activity comparable to reference drug (Celecoxib).

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43

Rathod, Seema P., and Awinash S. Chavan. "Design and Synthesis of Flavonoid Derivatives as Anti-inflammatory Drug." DER PHARMA CHEMICA 15, no. 6 (2023): 5. https://doi.org/10.4172/0975-413X.15.6.146-150.

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A series of 2-(3’-aminesubstituted)-7-hydroxyl-4H-1-benzopyran-4-one amine derivatives has been synthesized on the basis of molecular docking results. The novel derivatives prepared by condensation of 2,4-Dihydroxyacetophenonee (1.40 ml) and 3-chlorobenzaldehyde (0.01 mole) through Claisen-Schmidt condensation reaction. Novel flavone derivatives were access for anti-inflammatory activity by using carrageenan induced rat paw edema method. Among the synthesized compounds (t, v, w, k) shows good anti-inflammatory activity comparable to reference drug (Celecoxib).

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44

Wang, Qian, Xia-li Liao, Cheng Xiang, and Jian Yang. "A Practical Synthesis of the Flavone, Scutellarein." Journal of Chemical Research 41, no. 3 (2017): 157–59. http://dx.doi.org/10.3184/174751917x14873588907765.

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A practical and economical five-step synthesis of the flavone scutellarein has been achieved in 60% overall yield using the available and cheap 2,6-dimethoxy-1,4-benzoquinone as starting material. The reaction sequence involved reduction to the corresponding quinol, Friedel-Crafts acetylation, Claisen-Schmidt condensation with p-methoxybenzaldehyde, cyclisation and demethylation. The procedure is operationally simple and amenable to scale-up synthesis.

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45

Calvino, V., M. Picallo, A. J. López-Peinado, R. M. Martín-Aranda, and C. J. Durán-Valle. "Ultrasound accelerated Claisen–Schmidt condensation: A green route to chalcones." Applied Surface Science 252, no. 17 (2006): 6071–74. http://dx.doi.org/10.1016/j.apsusc.2005.11.006.

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46

Yadav, Ganapati D., and Dipti P. Wagh. "Claisen‐Schmidt Condensation using Green Catalytic Processes: A Critical Review." ChemistrySelect 5, no. 29 (2020): 9059–85. http://dx.doi.org/10.1002/slct.202001737.

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47

Dhakshinamoorthy, Amarajothi, Mercedes Alvaro, and Hermenegildo Garcia. "ChemInform Abstract: Claisen-Schmidt Condensation Catalyzed by Metal-Organic Frameworks." ChemInform 41, no. 29 (2010): no. http://dx.doi.org/10.1002/chin.201029064.

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48

Wang, Xueguang, and Soofin Cheng. "Direct Synthesis and Catalytic Reactivity of Highly Ordered Large-Pore Methylaminopropyl-Functionalized SBA-15 Materials." Australian Journal of Chemistry 58, no. 7 (2005): 507. http://dx.doi.org/10.1071/ch05024.

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Highly ordered large-pore SBA-15 materials functionalized with a high loading of amino groups were synthesized for the first time by co-condensation of tetraethyl orthosilicate (TEOS) and [3-(methylamino)propyl]trimethoxysilane (MAPTMS) using an amphiphilic block copolymer. Addition of inorganic salt to the initial mixture greatly enhanced the mesostructure ordering and stability of the mesoporous materials. The materials thus obtained showed high catalytic activity and selectivity for the synthesis of flavanones by means of the Claisen–Schmidt condensation in the absence of solvent.

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49

Bonyad, Ali Moin. "Synthesis of Chalcones from Acetone and tetrazole and 2-acetyl naphthalene Assisted by Microwave." Engineering and Technology Quarterly Reviews 3, no. 1 (2020): 16–22. https://doi.org/10.5281/zenodo.3686827.

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In the present study, we understood the total synthesis one chalcone derivative via Claisen-Schmidt condensation of the respective aldehydes and ketones using Microwave assisted irradiation method. In the microwave environment, chemical reactions usually proceed faster and give higher yields with fewer by- products. In the synthesis, a common aldehyde namely tetrazolo {1, 5-a} quinoline-4-carbaldehyde was used while the ketones used were respectively acetone, 2- acetyl Naphthalene. The Chalcone synthesised from Tetrazolo {1, 5-a} quinolone-4-carbaldehyde and acetone was 4-(tetrazolo {1, 5-a} q

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50

Marwa A. Atiyah, Olfat A. Nief, and Abdulkader M. Noori. "New Pyrazolines with Imine Moiety: Synthesis, Characterization." Tikrit Journal of Pure Science 26, no. 5 (2021): 40–47. http://dx.doi.org/10.25130/tjps.v26i5.175.

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Chalcone was prepared by claisen- schmidt condensation between reaction equivalent moles from 4-amino acetophenone with thiophen -2-carboxaldehyde in presence sodium hydroxide as base, the mechanism was involved the abstraction α Proton by base from the α-carbon of the ketone to form carbanion, which attacks carbonyl of aldehyde contains no α-hydrogens to produce α-β-unsaturated ketone, Chalcone derivative used to synthesize pyrazoline derivatives by condensation with 2,4-dinitro phenyl hydrazine. The newly synthesized compounds were determined using spectroscopic methods such as FTIR, Mass sp

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