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Journal articles on the topic 'Microwave Irradiation And Chalcone'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Sathiyamoorthi, K., V. Mala, R. Suresh, et al. "Synthesis, Spectral Correlations and Antimicrobial Activities of some 2-Hydroxyphenyl-Styrylketone." International Letters of Chemistry, Physics and Astronomy 12 (September 2013): 102–19. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.12.102.

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Some 2’-hydroxyphenylchalcones have been synthesized under microwave irradiation by Claisen-Schmidt condensation between substituted 2-hydroxyacetophenone and substituted benzaldehydes using catalytic amount of SiO2-H3PO4. These chalcones were established by their physical constants and spectroscopic data published earlier. The UV, IR, 1H NMR and 13C NMR spectral data of these chalcone have correlated with Hammett substituent constants, F and R parameters. All the compounds have been subjected to screened for antimicrobial activity.

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2

Sathiyamoorthi, K., V. Mala, R. Suresh, et al. "Synthesis, Spectral Correlations and Antimicrobial Activities of some 2-Hydroxyphenyl-Styrylketone." International Letters of Chemistry, Physics and Astronomy 12 (April 20, 2013): 102–19. http://dx.doi.org/10.56431/p-l97qe5.

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Some 2’-hydroxyphenylchalcones have been synthesized under microwave irradiation by Claisen-Schmidt condensation between substituted 2-hydroxyacetophenone and substituted benzaldehydes using catalytic amount of SiO2-H3PO4. These chalcones were established by their physical constants and spectroscopic data published earlier. The UV, IR, 1H NMR and 13C NMR spectral data of these chalcone have correlated with Hammett substituent constants, F and R parameters. All the compounds have been subjected to screened for antimicrobial activity.

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3

Jesus, Ana R., Ana P. Marques, and Amélia P. Rauter. "An easy approach to dihydrochalcones via chalcone in situ hydrogenation." Pure and Applied Chemistry 88, no. 4 (2016): 349–61. http://dx.doi.org/10.1515/pac-2016-0303.

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AbstractDihydrochalcones are polyphenols that exhibit a diversity of bioactivities, namely anti-inflammatory, antimicrobial and antiviral. We have explored the synthetic access to such molecular entities, and describe now an easy and scalable approach based on reduction of the olefinic double bond of chalcone precursors via in situ hydrogenation with the system Et3SiH-Pd/C in very high yield. The intermediate chalcones were synthesized also by a simple and efficient microwave-assisted Claisen–Schmidt condensation of aromatic aldehydes with acetophenones, conveniently protected with ethoxymethy

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4

Shailendra, Jain. "SYNTHESIS OF SOME BENZIMIDAZOLYL PYRAZOLE DERIVATIVES UNDER MICROWAVE IRRADIATION AND THEIR ANTIMICROBIAL ACTIVITIES." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 5, no. 6 (2018): 85–89. https://doi.org/10.5281/zenodo.1285780.

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A simple competent method has been developed for the synthesis of some pyrazole derivatives under microwave irradiation. The reaction of benzimidazolyl chalcone (1) with bromine in chloroform gave corresponding dibromochalcones (2), which when condensed with hydrazine hydrate  afforded the title compounds 3-benzimidazolyl-5-aryl-2-pyrazoles (3). All the synthesized compounds were characterized by elemental analysis, IR, NMR and MS spectra. Microwave irradiation method provided improved product yield in a very short span of time. Newly synthesized pyrazoles were screened for their antimicr

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5

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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6

Rahim, M. A., M. M. H. Bhuiayan, and M. M. Matin. "Microwave Assisted Efficient Synthesis of Some Flavones for Antimicrobial and ADMET Studies." Journal of Scientific Research 12, no. 4 (2020): 673–85. http://dx.doi.org/10.3329/jsr.v12i4.45523.

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Microwave (MW) assisted synthetic technique was applied for the preparation of chalcone derivatives 5-7 employing Claisen-Schmidt condensation between 2-hydroxyacetophenone and aromatic aldehydes. These chalcones were further subjected to oxidative cyclization via MW irradiation and furnished the related flavones 8-10 which were characterized by FT-IR, 1H and 13CNMR spectra. The use of these MW assisted reactions provided higher productivity (92-98%) in shorter reaction time (2-6 min) with eco-friendly mild reaction conditions and hence found to be a convenient method as compared to convention

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7

Ilavarasan, L., A. Ravi, M. Ganapathi, et al. "Microwave Synthesis and Characterization of Antibacterial Activity Evaluation of 2-(4, 5-dihydro-5-(4-chlorophenyl)-1H-pyrazol-3-yl) phenol." South Asian Journal of Engineering and Technology 7, no. 3 (2018): 01–07. http://dx.doi.org/10.26524/sa1.

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Chalcone derivatives were synthesized by reaction of some benzaldehyde derivatives with acetophenone, then the products obtained were allowed to react withurea, thiourea and hydroxylamine, to give the heterocyclic derivatives of oxazine, thiazine and isoxazole, respectively.In this study, a series of chalcones and substituted pyrazole compounds were synthesized according to green chemistry methods of conventional and microwave irradiation by using substituted acetophenone, substituted benzaldehyde, hydrazine hydrate and PEG-400. The synthesized compounds were characterized by UV-Visible, FT-IR

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8

Van, Pham Thi Bich, Le Thanh Huy, Nguyen Thi Bich Thuy та ін. "Solvent‐free, microwave‐assisted, solid‐catalyzed synthesis and α‐Glucosidase inhibition of chalcones". Vietnam Journal of Chemistry 61, № 3 (2023): 325–32. http://dx.doi.org/10.1002/vjch.202200151.

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AbstractA series of chalcone analogues were synthesized using Claisen‐Schmidt condensation and assayed for in vitro inhibitory activity against α‐glucosidase. The synthesis involved in solvent‐free reaction conditions including NaOH‐catalyzed grinding or microwave irradiation in the presence of a clay‐based catalyst. Hydroxychalcones and 2′‐hydroxychalcones were not isolated when using grinding method, while the microwave‐assisted, clay‐catalyzed synthesis gave these desired products. In addition, flavanones, cyclization products from 2′‐hydroxychalcones were formed in both methods. Flavanones

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9

Venkatesan, P., and K. Moorthi. "Microwave-Induced, Iodine-Alumina Catalyzed Transformations of 1-(2′-hydroxyaryl)-3-(2-chloroquinolin-3-yl)-prop-2-en-1-one." E-Journal of Chemistry 9, no. 2 (2012): 1017–21. http://dx.doi.org/10.1155/2012/354875.

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The chalcone derivatives, 1-(2′-hydroxyaryl)-3-(2-chloroquinolin-3-yl)-prop-2-en-1-one was transformed to corresponding flavone derivatives by iodine impregnated neutral alumina under microwave irradiation. The synthesized flavone derivatives were structurally confirmed by elemental analysis, UV, IR and1H-NMR spectral data, and the notable yield obtained was compared with previously reported method.

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10

Khan, Sumaiya, Umme Aiman Liza, Dipan Banik, et al. "Environmentally benign synthesis of substituted iodinated flavones as precursors for prenyl-/geranyl flavones from the corresponding chalcones." European Journal of Chemistry 15, no. 4 (2024): 332–37. https://doi.org/10.5155/eurjchem.15.4.332-337.2600.

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Flavones have biological properties because of the existence of oxoheterocyclic ring moieties, and day by day create research interest areas because of their important biological activity. Iodine-substituted flavones were synthesized from the corresponding chalcones through an exhaustive iodination reaction. Generally, it is seen that halogenated flavones show better biological activity. Moreover, the introduction of iodine in the ring moiety facilitates the incorporation of highly active side chains, such as prenyl and geranyl groups through the formation of C-C bonds by numerous coupling rea

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11

R, Kalirajan. "Microwave Irradated Synthesis, Characterization and Evaluation for their Antibacterial and Larvicidal Activities of some Novel Chalcone and Isoxazole Substituted 9-Anilino Acridines." Open Journal of Chemistry 1, no. 1 (2015): 001–7. https://doi.org/10.17352/ojc.000001.

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<strong>Introduction:</strong> Chalcone, isoxazole and acridines have diverse biological activities. A series of novel chalcone and isoxazole substituted 9-anilinoacridines were synthesized for their antibacterial, larvicidal, activities. <strong>Methods: </strong>A series of novel chalcone and isoxazole substituted 9-anilinoacridines (3a-h and 4a-h) were synthesized from 9-chloroacridine by microwave irradiation method. The antibacterial evaluation was performed by cup-plate method and screened for their larvicidal activity by larval bioassay method. Result: The compounds 3d, 3e, 3f, 3h, 4d,

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12

Guguloth, Ravi, K. Anjaneyulu, Himabindu Mekala, and Midde Sridhar. "Green synthesis and antimicrobial activity of 1,3-diaryl pyrazole based chalcone derivatives." Research Journal of Chemistry and Environment 26, no. 10 (2022): 172–74. http://dx.doi.org/10.25303/2610rjce1720174.

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We report a facile green synthetic protocol for the synthesis of 1,3-diaryl pyrazole based chalcone derivatives by the condensation of 3-Aryl-1-phenyl-1Hpyrazole- 4-carbaldehydes with arylmethylketones in the presence of base in both microwave and ultrasound irradiation method. The synthesized compounds were evaluated for in vitro antimicrobial activity against four bacterial organisms and two fungal organisms showing moderate to good activity.

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13

Sinaga, Siska Elisahbet, Matius Paundanan, and Yum Eryanti. "Synthesis, Characterization, and BSLT Test of Pyrazoline and Pyrazole Compounds from Chalcone using Microwave Irradiation." Chimica et Natura Acta 11, no. 3 (2023): 96–105. https://doi.org/10.24198/cna.v11.n2.47889.

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Pyrazole is an organic compound, classified as an alkaloid, featuring a heterocyclic five-membered ring structure composed of three carbon atoms and two adjacent nitrogen atoms, forming an endocyclic double bond. Pyrazole has various biological activities, such as antibacterial, anticanc er, antiinflammatory, antidepressantion, and antioxidant. Pyrazole 2-(5-(4-chlorophenil)-1-phenil-1H-pyrazole-3il)phenol (TFP-2OH-4Cl) was synthesized via oxidative aromatization reaction of pyrazoline 2-(5-(4-chlorophenil)-1-phenil-4,5-dihydro-1H-pyrazole-3-il)phenol (PF-2OH-4Cl) with glacial acetic acid. Cha

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14

Rocha, Djenisa H. A., Patrícia A. A. M. Vaz, Diana C. G. A. Pinto, and Artur M. S. Silva. "Synthesis Chalones and Their Isomerization into Flavanones and Azaflavanones." Methods and Protocols 2, no. 3 (2019): 70. http://dx.doi.org/10.3390/mps2030070.

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Flavanones [2-aryl-2,3-dihydrochromen-4(1H)ones] and 2-aryl-2,3-dihydroquinolin-4(1H)-ones are valuable precursors in the synthesis of important pharmacological scaffolds, so efficient methodologies towards their synthesis are important in the medicinal chemistry context. Their synthesis also involves theoretical concepts such as aldol condensation, isomerization, and catalysis that make it useful in an undergraduate organic chemistry laboratory. The use of both microwave irradiation as a source of energy to promote reactions and efficient catalysts are considered within green chemistry princi

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15

Rahman Badal, Md Mizanur, Md Tarikul Islam, Reshma Parvin, et al. "Antimicrobial, Structure-Activity Relationship and Computational Studies of Some Synthesized Chalcone Derivatives." Asian Journal of Chemistry 33, no. 3 (2021): 644–50. http://dx.doi.org/10.14233/ajchem.2021.23028.

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Several chalcones viz. 1,3-diaryl-2-propane-1-one (1a), 3-(4-hydroxy phenyl)-1-phenyl-2-propane-1- one (1b), 3-(4-amino-phenyl)-1-phenyl-2-propane-1-one (1c) and their derivatives 2-ethoxy-4,6- diphenyl-4H-pyran-3-carboxylic acid ethyl ester (2a), 4-(4-hydroxy-phenyl)-7,7-dimethyl-2-phenyl- 4,6,7,8-tetrahydro-chromen-5-one (2b) and 7-(4-amino-phenyl)-5-phenyl-1,5-dihydropyrano[2,3- d]pyrimidine-2,4-dione (2c ) have been synthesized following both conventional and microwave irradiation methods. The structures of the isolated compounds were elucidated on the basis of UV-visible, FTIR, 1H NMR spe

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16

Ravindra, S. Dhivare, and S. Rajput Shankarsing. "Synthesis and antimicrobial evaluation of some novel bis-heterocyclic chalcones from cyclic imides under microwave irradiation." Chemical Science Review and Letters 4, no. 15 (2015): 937–44. https://doi.org/10.5281/zenodo.3909689.

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Abstract Synthesis of a new series of bis-heterocyclic chalcone derivatives has been reported. The condensation proceeded by the one-pot reaction of N-phenyl succinimides and 4-hydroxy-3-methoxy benzaldehyde in the presence of neutral alumina under microwave irradiation. The advantages of this method are high yield, shorter reaction time, and simple workup procedure. Most of the synthesized compounds have shown moderate to significant antimicrobial activity against different microbial strains.  

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17

Ikhtiarudin, Ihsan, Nesa Agistia, Tria Harlianti, and Adel Zamri. "Sintesis dan Potensi Aktivitas Tabir Surya Senyawa Analog Kalkon Turunan 3’-Hidroksiasetofenon dan 4-Metoksibenzaldehid." Photon: Jurnal Sain dan Kesehatan 10, no. 1 (2019): 1–12. http://dx.doi.org/10.37859/jp.v10i1.1541.

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Chalcone analogues have attracted the attention of researchers due to their various biological activities. In this study, a chalcone analogue, (E)-1-(3-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-on has been synthesized under microwave irradiation and its sunscreen activity has been evaluated by in vitro assay using 96-well microplate reader. Based on the in vitro assay, at concentration of 100-500 µg/ml, the compound showed potential sunscreen activity with %Te value of 5.49 – 0.04 % (extra protection – sunblock), %Tp value of 0.51-0.05 % (sunblock) and SPF value of 18.20 – 32.91 (ultra pro

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18

Elsayed, Galal A., Naglaa F. H. Mahmoud, and Sameh A. Rizk. "Solvent-free Synthesis and Antimicrobial Properties of Some Novel Furanone and Spiropyrimidone Derivatives." Current Organic Synthesis 15, no. 3 (2018): 404–13. http://dx.doi.org/10.2174/1570179414666170830124447.

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Background: The regioselective synthesis of spiro-heterocyclic compounds is intriguing since those compounds have unique non-planar structures and great potential for binding to biomolecules because of their inherent rigid chiral structure. A novel class of furanone and spiro-heterocyclic derivatives were synthesized and evaluated for antifungal activities to establish structure-activity relationship (SAR). Results: The synthesis was carried out through one-pot multicomponent reaction (MCR) of 4-aryl-4-oxo-2- butenoic acids, camphor, urea, and hydrogen peroxide in the presence of sodium ethoxi

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19

Ana, POPUȘOI. "STUDY OF THE SYNTHESIS METHODS OF 1,3-ARYL(HETERYL)PROPENONE." STUDIA UNIVERSITATIS MOLDAVIAE Științe Reale și ale Naturii, no. 6(156) (2022): 159–71. https://doi.org/10.5281/zenodo.7445813.

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In this work, we refer to the study of recent specialized literature, where some syntheses methods of chalcone derivatives are described. These substances show a very pronounced anticancer activity, having a protective action in the cellular system. They present interest due to their biological properties, such as anti-inflammatory, antioxidant, cytotoxic and antihistamine properties, etc. These important biological properties are the basis of the current research intended to obtain them synthetically. The bibliographic data refers to the synthesis of 1,3-aryl (heteryl) propenones, w

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20

Asgarova, Aytan R., Ali N. Khalilov, Ivan Brito, et al. "Hydrogen and halogen bonding in the haloetherification products in chalcone." Acta Crystallographica Section C Structural Chemistry 75, no. 3 (2019): 342–47. http://dx.doi.org/10.1107/s2053229619001025.

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Cooperative action of hydrogen and halogen bonding in the reaction of 3-(3,5-di-tert-butyl-4-hydroxyphenyl)-1-phenylprop-2-en-1-one with HCl or HBr in alcohol medium under microwave irradiation (20 W, 80 °C, 10 min) allows the isolation of the haloetherification products (2S,3S)-3-(3-tert-butyl-5-chloro-4-hydroxyphenyl)-2-chloro-3-ethoxy-1-phenylpropan-1-one, C21H24Cl2O3, (2S,3S)-2-bromo-3-(3-tert-butyl-5-bromo-4-hydroxyphenyl)-3-methoxy-1-phenylpropan-1-one, C20H22Br2O3, and (2S,3S)-2-bromo-3-(3-tert-butyl-5-bromo-4-hydroxyphenyl)-3-ethoxy-1-phenylpropan-1-one, C21H24Br2O3, in good yields. Bo

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21

Narwanti, Iin, and Aisyah Khairani Hidayati. "Sintesis Senyawa 4-(Dimetilamino)calkon Menggunakan Microwave-Assisted Organic Synthesis (MAOS) dengan Variasi Konsentrasi NaOH dan Prediksi Profil Farmakokinetik." ALCHEMY Jurnal Penelitian Kimia 19, no. 2 (2023): 130. http://dx.doi.org/10.20961/alchemy.19.2.66542.130-139.

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<p>Senyawa calkon dan turunannya mempunyai aktivitas farmakologi dengan aplikasi yang luas, karenya sintesis senyawa tersebut perlu dipelajari. Oleh karena itu, penelitian ini bertujuan untuk mensintesis 4-(dimetilamino)calkon dari dalam suasana basa dengan metode <em>Microwave-Assisted Organic Synthesis</em> (MAOS) dan memprediksi profil farmakokinetiknya. 4-(dimetilamino)calkon direaksikan dengan asetofenon dengan adanya basa NaOH. Sintesis 4-(dimetilamino)calkon dilakukan dengan iradiasi selama 25 detik dengan daya 140 watt. Variasi konsentrasi katalis NaOH yang digunakan

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22

Amelia, Marsha A., Dini Kesuma, Aguslina Kirtishanti, I. Gede A. Sumartha, and Maria Claudya. "Molecular docking, synthesis, and in vitro activity testing of chalcone derivatives from Boesenbergia rotunda (L.) Mansf. against MCF-7 breast cancer cells." Journal of Pharmacy & Pharmacognosy Research 13, s1 (2025): S129—S139. https://doi.org/10.56499/jppres24.2220_13.s1.129.

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Context: The chalcone derivative compounds (bis-2-chlorobenzyloxychalcone and bis-3-chlorobenzyloxychalcone) synthesized from pinostrobin, which is found in Boesenbergia rotunda (L.) Mansf., which has cytotoxic activity relative to the estrogen receptor alpha. Aims: To determine the anticancer activity of chalcone derivative compounds synthesized from B. rotunda as an in silico and in vitro breast cancer candidate. Methods: An in silico test was performed to predict the cytotoxic activity using AutoDockVina and the synthesis of chalcone and derivatives from pinostrobin compounds contained in B

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23

Sharda, Sharma, and Sharma Arvind. "Solvent free synthesis of new-1-acetyl-3-( 4-fluoronaphthyl)-5-substituted aryl pyrazolines as spermicides." Journal of Indian Chemical Society Vol. 85, July 2008 (2008): 750–53. https://doi.org/10.5281/zenodo.5817197.

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Post Graduate Department of Chemistry, Govt. College, Kota-342 001, Rajasthan, India <em>E-mail : </em>sharda_ak@yahoo.co.in <em>Manuscript received 21 September 2007, accepted 7 May 2008</em> In this paper we wish to report the solvent free synthesis of 1-acetyl-3-(4-fluoronaphthyl)-5-substituted aryl pyrazolines by using simple and efficient Green Chemistry techniques (Grindstone method and microwave irradiation). These methods have been developed for the rapid solvent free synthesis of title compounds from corresponding chalcones and hydrazine hydrate or phenylhydrazine in acetic acid. Cons

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24

Kamble, Ravindra, B. S. Sudha, and D. G. Bhadregowda. "Expeditious synthesis of 1,3,4-oxadiazole derivatives via sydnones." Journal of the Serbian Chemical Society 73, no. 2 (2008): 131–38. http://dx.doi.org/10.2298/jsc0802131k.

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The clean cyclization of chalcones (1a-c/2a-c) with hydrazine hydrate under microwave irradiation afforded pyrazolines derivatised with sydnone (3d-i/4d-i), which underwent 1,3-dipolar cyclo-addition with acetic anhydride to form pyrazolines appended with 1,3,4-oxadiazoles (5g-l/6g-l). The newly synthesized compounds were confirmed by spectral and elemental analyses. In comparison to classical heating, the results indicate that microwave irradiation affords higher yields, shorter reaction times (4-12 min) and cleaner reactions.

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25

Rayees Ahmad, Mohammed, V. Girija Sastry, Nasreen Bano, and Syed Anwar. "Synthesis of novel chalcone derivatives by conventional and microwave irradiation methods and their pharmacological activities." Arabian Journal of Chemistry 9 (September 2016): S931—S935. http://dx.doi.org/10.1016/j.arabjc.2011.09.002.

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26

Janaki, P., K. G. Sekar, and Ganesamoorthy Thirunarayanan. "Microwave Assisted Sulphated Titania Catalyzed Aldol Condensation: Synthesis of some (E) 3-(2-Naphthyl)-1-(Substituted Phenyl)-2-Propen-1-Ones under Solvent-Free Conditions." International Letters of Chemistry, Physics and Astronomy 28 (February 2014): 16–22. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.28.16.

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A series of titled chalcones were synthesized by aldol condensation between 2-naphthaldehyde and various substituted acetophenones using solid acidic solid sulphated titania catalyst under microwave irradiation. The yields of these chalcones are more than 90%. The synthesized chalcones are characterized by their physical constants, analytical and spectroscopic data.

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Janaki, P., K. G. Sekar, and Ganesamoorthy Thirunarayanan. "Microwave Assisted Sulphated Titania Catalyzed Aldol Condensation: Synthesis of some (<i>E</i>) 3-(2-Naphthyl)-1-(Substituted Phenyl)-2-Propen-1-Ones under Solvent-Free Conditions." International Letters of Chemistry, Physics and Astronomy 28 (February 19, 2014): 16–22. http://dx.doi.org/10.56431/p-w89peq.

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A series of titled chalcones were synthesized by aldol condensation between 2-naphthaldehyde and various substituted acetophenones using solid acidic solid sulphated titania catalyst under microwave irradiation. The yields of these chalcones are more than 90%. The synthesized chalcones are characterized by their physical constants, analytical and spectroscopic data.

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Ikhtiarudin, Ihsan, Nesa Agistia, Neni Frimayanti, Tria Harlianti, and Jasril Jasril. "Microwave-assisted synthesis of 1-(4-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one and its activities as an antioxidant, sunscreen, and antibacterial." Jurnal Kimia Sains dan Aplikasi 23, no. 2 (2020): 51–60. http://dx.doi.org/10.14710/jksa.23.2.51-60.

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Chalcone analogs have been reported to have a variety of exciting biological activities, such as anticancer, anti-inflammatory, antioxidant, photoprotective, antibacterial, and antidiabetic activities. Therefore, analogs of these compounds have been widely synthesized as intermediate compounds or target molecules in the discovery of bioactive compounds to be applied in the pharmaceutical field. The purpose of this study is to synthesize chalcone analog compounds (E)-1-(4-hydroxyphenyl)-3-(4-methoxyphenyl) prop-2-en-1-on with the microwave irradiation method and explore some of the biological a

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29

Polo, Efrain, Karoll Ferrer-Pertuz, Jorge Trilleras, Jairo Quiroga, and Margarita Gutiérrez. "Microwave-assisted one-pot synthesis in water of carbonylpyrazolo[3,4-b]pyridine derivatives catalyzed by InCl3 and sonochemical assisted condensation with aldehydes to obtain new chalcone derivatives containing the pyrazolopyridinic moiety." RSC Adv. 7, no. 79 (2017): 50044–55. http://dx.doi.org/10.1039/c7ra10127a.

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Pyrazolo[3,4-b]pyridines derivatives have been synthesized via one-pot condensation of 3-methyl-1-phenyl-1H-pyrazolo-5-amine (1), paraformaldehyde (2) and β-diketones (3) under microwave irradiation in aqueous media catalyzed by InCl<sub>3</sub>.

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Yuvaraj, Panneerselvam, D. Kathirvelan та Boreddy S. R. Reddy. "ChemInform Abstract: Synthesis of β-Aminoketone by Reaction of Amine and Activated Chalcone in Microwave Irradiation." ChemInform 46, № 46 (2015): no. http://dx.doi.org/10.1002/chin.201546122.

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31

Hu, Xueyuan, Xinying Zhang, Xuesen Fan, Guirong Qu, and Yanzhen Li. "A facile and green preparation of 2,4-diarylpolyhydroquinolines." Journal of Chemical Research 2005, no. 11 (2005): 697–99. http://dx.doi.org/10.3184/030823405774909397.

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An efficient and environmentally benign procedure for the preparation of 2,4-diarylpolyhydroquinoline derivatives from 5,5-dimethylcyclohexane-1,3-dione, chalcones and ammonium acetate under microwave irradiation in a solvent-free manner is described in this paper.

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B., D. Mistry, R. Desai K., and B. Rana P. "Conventional and microwave irradiation technique for the synthesis of some pyrimidine and pyrazoline derivative from 1-{4'-[(4"-methylpiperazinyl)diazenyl] phenyl}-3-(substitutedphenyl)prop-2-en-1-one and studies of their antimicrobial activity." Journal of Indian Chemical Society Vol. 88, Jun 2011 (2011): 869–77. https://doi.org/10.5281/zenodo.5771335.

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Department of Chemistry, B. K. M. Science College, Valsad-396 001, Gujarat, India <em>E-mail</em> : bhavana_mistryll@yahoo.co.in <em>Manuscript received 08 March 2010, revised 21 September 2010, accepted 05 October 2010</em> A series of compounds namely 6-{4'-((4"-methylpiperazinyl)diazenyl]phenyl}-4-(substitutedphenyl)pyrimidine 2-yl-amide (Ja-j), 3-{4' -[(4" -methylpiperazinyl)diazenyl]phenyl}-5-(substitutedphenyl)pyrazole (4a-j) and 3-{ 4'-((4<em>"</em>methylpiperazinyl) diazenyl]phenyl}-5-(substitutedphenyl)pyrazolecarboxamide (Sa-j) have been prepared by the rea

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Hatami, Roghayeh, Afshin Javadi, and Hoda Jafarizadeh-Malmiri. "Effectiveness of six different methods in green synthesis of selenium nanoparticles using propolis extract: Screening and characterization." Green Processing and Synthesis 9, no. 1 (2020): 685–92. http://dx.doi.org/10.1515/gps-2020-0065.

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AbstractSelenium nanoparticles (Se NPs) were fabricated with propolis hydro-alcoholic extract and six different methods, namely, hydrothermal, microwave irradiation, ultrasonication, UV radiation, self-assembling, and conventional heating. Results indicated that antioxidant activity, turbidity, pH, and brix values of the provided hydroalcoholic propolis extract were 85.8%, 2.235% a.u., 4.1, and 3.2°Bx, respectively. Gas chromatography analysis revealed that approximately 38 bioactive compounds were detected in the provided extract within 40 min of retention time, including chalcone. Results al

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Rocchi, Damiano, Jorge Gómez-Carpintero, Juan F. González, and J. Carlos Menéndez. "Sustainable Access to Acridin-9-(10H)ones with an Embedded m-Terphenyl Moiety Based on a Three-Component Reaction." Molecules 25, no. 23 (2020): 5565. http://dx.doi.org/10.3390/molecules25235565.

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A Ce(IV)-catalyzed three-component reaction between chalcones, anilines and β-ketoesters followed by a microwave-assisted thermal cyclization afforded 1,3-diaryl-1,2-dihydroacridin-9(10H)-ones. Their microwave irradiation in nitrobenzene, acting both as solvent and oxidant, afforded fully unsaturated 1,3-diarylacridin-9(10H)-ones, which combine acridin-9-(10H)one and m-terphenyl moieties. Overall, the route generates three C-C and one C-N bond and has the advantage of requiring a single chromatographic separation.

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Patil, Pravinkumar, Gangadhar Bhopalkar, and Sainath Zangade. "Alumina-K3PO4 Solid Supported Microwave Synthesis of 1, 3-diaryl-2- propene-1-one Derivatives as a Prominent Antioxidant Scavenger." Current Microwave Chemistry 7, no. 2 (2020): 145–56. http://dx.doi.org/10.2174/2213335607666200129113827.

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Background: The various industrial processes have a diverse effect on the environment through pollution. In view of these observations, some environmentally benign synthetically protocols have developed under green chemistry. For rapid and sustainable synthesis, the microwave irradiation (MI) has gained popularity as a powerful tool compared to conventional synthesis. The present study describes the synthesis of novel substituted 1, 3-diaryl-2-propene-1-one derivative using alumina supported K3PO4-MWI combination. Objective: Chalcones are important compounds which are widely spread in nature l

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Sapnakumari, M., K. Divya, K. B. Aswin, and J. Dalin. "Antimicrobial and Antioxidant Study of Some Newly Synthesized Chalcones and Cyclohexenone Derivatives." Asian Journal of Chemistry 35, no. 1 (2022): 114–18. http://dx.doi.org/10.14233/ajchem.2023.24057.

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Chalcones and cyclohexenone derivatives obtained from various substituted aldehydes and substituted acetophenones are described. Chalcones were obtained by the Claisen-Schmidt condensation reaction of aldehydes with substituted acetophenones. Base catalyzed cyclocondensation of ethyl acetoacetate to chalcones under microwave irradiation leads to the formation of cyclohexenone derivatives. The prepared compounds are characterized by IR, 1H NMR and 13C NMR spectral methods. These are screened for their antimicrobial activity against Staphylococcus aureus, Escherichia coli, Aspergillus niger, Asp

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Ranu, Brindaban C., Tubai Ghosh, and Laksmikanta Adak. "Recent Progress on Carbon-chalcogen Bond Formation Reaction Under Microwave Irradiation." Current Microwave Chemistry 7, no. 1 (2020): 40–49. http://dx.doi.org/10.2174/2213335607666200214130544.

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The carbon-chalcogen bond formation is of much importance as organochalcogenides scaffold, and in general, it shows by organochalcogenide scaffolds, in general, show promising biological activities and many compounds containing chalcogenide units are currently used as drugs, agrochemicals and useful materials. Thus, a plethora of methods has been developed for the formation of carbonchalcogen bonds. This review covers the recent developments on the formation of carbon-chalcogen bonds under microwave irradiation and synthesis of useful chalcogenides by employing this process.

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Thirunarayanan, Ganesamoorthy, R. Sundararajan, and R. Arulkumaran. "Aryl Chalcones as Efficient Precursors for Deriving Oxazine: Solvent-Free Synthesis and Antimicrobial Activities of some Oxazine-2-amines." International Letters of Chemistry, Physics and Astronomy 23 (November 2013): 82–97. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.23.82.

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A series of some oxazine derivatives has been synthesised by fly-ash:H2SO4 catalyzed solvent-free cyclization of aryl chalcones and urea under microwave irradiation. The yields of the oxazines were more than 85%. The synthesised oxazines were characterized by their physical constants, analytical and spectroscopic data. The antimicrobial activities of these oxazines have been studied using Bauer-Kirby method.

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Thirunarayanan, Ganesamoorthy, R. Sundararajan, and R. Arulkumaran. "Aryl Chalcones as Efficient Precursors for Deriving Oxazine: Solvent-Free Synthesis and Antimicrobial Activities of some Oxazine-2-amines." International Letters of Chemistry, Physics and Astronomy 23 (November 30, 2013): 82–97. http://dx.doi.org/10.56431/p-cks63d.

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A series of some oxazine derivatives has been synthesised by fly-ash:H2SO4 catalyzed solvent-free cyclization of aryl chalcones and urea under microwave irradiation. The yields of the oxazines were more than 85%. The synthesised oxazines were characterized by their physical constants, analytical and spectroscopic data. The antimicrobial activities of these oxazines have been studied using Bauer-Kirby method.

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Ashok, Dongamanti, Bommidi Lakshmi, Sidda Ravi, and Arram Ganesh. "Microwave assisted synthesis of some new coumarin-pyrazoline hybrids and their antimicrobial activity." Journal of the Serbian Chemical Society 80, no. 3 (2015): 305–13. http://dx.doi.org/10.2298/jsc140021101a.

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A series of pyrazolines 4a-g have been synthesized by Michael addition of chalcones 3a-g with hydrazine hydrate in presence of sodium acetate under conventional heating and microwave irradiation. Structures of the newly synthesized chalcones 3a-g and pyrazolines 4a-g have been established on the basis of IR, 1H & 13C NMR and mass spectral data. All the synthesized compounds were screened for their antimicrobial activity. Some of the compounds shown very good activity compared to standard drugs against all pathogenic bacteria and fungi.

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Agudelo-Ibañez, Natalia, Sergio Torres-Cortés, Ericsson Coy-Barrera, Ivon Buitrago та Diego Quiroga. "Diastereomeric N,S-Dialkyl Dithiocarbamates Derived from (E)-Chalcones and ʟ-Tryptophan: Microwave-Assisted Synthesis and In Vitro Studies Against Fusarium oxysporum". Organics 5, № 4 (2024): 598–613. https://doi.org/10.3390/org5040031.

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The synthesis of indole phytoalexin-like analogs related to alkyl (((1-(4-substitutedphenyl)-3-oxo-3-phenylpropyl)thio)carbonothioyl)-ʟ-tryptophanate 1a–d and the evaluation of their antifungal activity against the phytopathogen Fusarium oxysporum is reported. The target compounds were synthesized in the following two stages: (1) the initial esterification of ʟ-tryptophan, which reacted with trimethyl silane chloride and simple aliphatic alcohols (R = Me, Et) under microwave irradiation (MWI) at 100 °C to obtain the respective alkyl ester 2a–b; (2) the resulting mixture of ʟ-tryptophanates 2a–

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Ashok, Dongamanti, Velagapuri Rao, and Rangu Kavitha. "Microwave assisted synthesis of 2-(2-(tetrazolo[1,5-a]quinolin-4-yl)-2,3-dihydro-1h-benzo[b][1,4]diazepin-4-yl) substituted phenols and evaluation of their antimicrobial activity." Journal of the Serbian Chemical Society 81, no. 8 (2016): 851–58. http://dx.doi.org/10.2298/jsc150504041a.

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A series of new benzodiazepines 4a-h have been synthesized by Michael addition of chalcones 3a-h with o-phenylenediamine (OPDA) in presence of sodium acetate under conventional heating and microwave irradiation. Structures of the newly synthesized benzodiazepines 4a-h have been established on the basis of IR, 1H & 13C NMR and mass spectral data and tested for antimicrobial activity.

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Vijayakumar, S., R. Arulkumaran, R. Sundararajan, et al. "Microwave Assisted Synthesis, Spectral Studies and Antimicrobial Activities of some 2′,4′-Difluorophenyl Chalcones." International Letters of Chemistry, Physics and Astronomy 14 (September 2013): 68–86. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.14.68.

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Some 2′,4′-difluorophenyl chalcones have been synthesized under microwave irradiation using aldol condensation between 2,4-difluoroacetophenone and substituted benzaldehydes using catalytic amount of hydroxyapatite. The yields of the chalcones are more than 85%. The purities of these synthesized chalcones were examined by their physical constants and spectroscopic data. The UV absorption maxima (λmax, nm), infrared stretches (ν, cm-1) of CO, fingerprint region of CHip/op, CH=CHop, C=Cop modes, NMR chemical shifts (δ, ppm) of vinyl proton, carbon and carbonyl carbons have been assigned and corr

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Vijayakumar, S., R. Arulkumaran, R. Sundararajan, et al. "Microwave Assisted Synthesis, Spectral Studies and Antimicrobial Activities of some 2′,4′-Difluorophenyl Chalcones." International Letters of Chemistry, Physics and Astronomy 14 (May 19, 2013): 68–86. http://dx.doi.org/10.56431/p-v23467.

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Some 2′,4′-difluorophenyl chalcones have been synthesized under microwave irradiation using aldol condensation between 2,4-difluoroacetophenone and substituted benzaldehydes using catalytic amount of hydroxyapatite. The yields of the chalcones are more than 85%. The purities of these synthesized chalcones were examined by their physical constants and spectroscopic data. The UV absorption maxima (λmax, nm), infrared stretches (ν, cm-1) of CO, fingerprint region of CHip/op, CH=CHop, C=Cop modes, NMR chemical shifts (δ, ppm) of vinyl proton, carbon and carbonyl carbons have been assigned and corr

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Goswami, Shyamaprosad, Subrata Jana, Swapan Dey, and Avijit Kumar Adak. "Microwave-Expedited One-Pot, Two-Component, Solvent-Free Synthesis of Functionalized Pyrimidines." Australian Journal of Chemistry 60, no. 2 (2007): 120. http://dx.doi.org/10.1071/ch06388.

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The synthesis of a series of diversely substituted pyrimidines under solvent-free conditions in good yields is described. Under microwave irradiation, a variety of nucleophilic substrates containing the N–C–N unit with β-dicarbonyl compounds, ethyl cyanoacetate, malononitrile, and chalcones was cyclized to give pyrimidines. A combinatorial type approach for a one-step synthesis has been developed where a ring-closing condensation is followed by spontaneous aromatization to afford 28 functionalized and aryl/alkyl substituted pyrimidines.

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More, A. H., S. J. Raul, and S. S. Mahajan. "SYNTHESIS, ANTIMALARIAL ACTIVITY AND QSAR STUDIES OF CHALCONES,N-BENZYLIDENESULFONAMIDES AND CHALCONESULFONAMIDES." INDIAN DRUGS 49, no. 05 (2012): 20–34. http://dx.doi.org/10.53879/id.49.05.p0020.

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Malaria remains the major cause of human morbidity and mortality worldwide. Malaria, caused byPlasmodium species, is potentially life threatening, increasing in prevalence and becoming evenmore resistant to in-use drugs. In this article, synthesis of compounds from the series of chalcones,benzylidenesulfonamides and chalconesulfonamides, by the conventional and microwave-irradiationmethods is discussed. The microwave-irradiation method was convenient, rapid and high yielding ascompared to the conventional method of synthesis. The acute oral toxicity studies indicated that all thecompounds were

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Bajracharya, Gan B., Rabina Dhakal, and Sulochana Timalsina. "Microwave-Accelerated Synthesis of Flavanones through Oxidative Cyclization of 2'-Hydroxychalcones Using Acetic Acid as a Sole Catalyst." Journal of Nepal Chemical Society 44, no. 1 (2024): 143–52. http://dx.doi.org/10.3126/jncs.v44i1.62688.

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Under microwave irradiation conditions, 2'-hydroxy chalcones 1a-c underwent AcOH-mediated cyclization in an oxa-Michael addition manner to afford flavanones 2a-c in acceptable yields (up to 82%). These reactions proceeded in a shorter reaction time (~ 30 min) through microwave activation; otherwise, the reaction would take several days and even weeks, if a conventional heating process was employed. For example, cyclization of (E)-1-(2-hydroxyphenyl)-3-phenylprop-2-en-1-one (1a) has required 4 days of stirring with AcOH (0.25 M), under conventional heating at 100 °C, to produce 2-phenylchroman-

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haikh, Parin V. S. "Microwave Synthesis and Biological Evaluation of Coumarins Substituted Furylpyrazolylpyrazoline." Asian Journal of Chemistry 35, no. 4 (2023): 1009–13. http://dx.doi.org/10.14233/ajchem.2023.27571.

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Some new furaylpyrazolylpyrazoline substituted coumarins were synthesized under microwave irradiation. Target compounds were obtained by cyclization of coumarin chalcones with various substituted hydrazine hydrate and arylhydrazines to give the corresponding pyrazoline by Michael addition reaction (1,4-addition on α,β-unsaturated carbonyl group). Establishment of the structure of the synthesized compounds were based on 1H NMR, 13C NMR, IR, mass spectrometry and elemental analysis data. The synthesized compounds were screened for antibacterial in vitro against Bacillus subtilis, Staphylococcus

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Cuartas, Viviana, Braulio Insuasty, Justo Cobo, and Christopher Glidewell. "Reduced 3,4′-bipyrazoles from a simple pyrazole precursor: synthetic sequence, molecular structures and supramolecular assembly." Acta Crystallographica Section C Structural Chemistry 73, no. 10 (2017): 784–90. http://dx.doi.org/10.1107/s205322961701302x.

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The reaction of 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde and N-benzylmethylamine under microwave irradiation gives 5-[benzyl(methyl)amino]-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde, C19H19N3O, (I). Subsequent reactions under basic conditions, between (I) and a range of acetophenones, yield the corresponding chalcones. These undergo cyclocondensation reactions with hydrazine to produce reduced bipyrazoles which can be N-formylated with formic acid or N-acetylated with acetic anhydride. The structures of (I) and of representative examples from this reaction sequence are reported,

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Ameta, K. L., Biresh Kumar, and Nitu S. Rathore. "Microwave Induced Improved Synthesis of Some Novel Substituted 1, 3-Diarylpropenones and their Antimicrobial Activity." E-Journal of Chemistry 8, no. 2 (2011): 665–70. http://dx.doi.org/10.1155/2011/165047.

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Application of solid support, solvent free reaction condition and a dynamic microwave power system in the chemical synthesis of some novel 1, 3-diaryl-propenones has been described. A series of chalcones(3a-h)were synthesized by the condensation of 4-hydroxy-3,5-dinitroacetophenone with various substituted aromatic aldehydes in presence of montmorrilonite K10 as a catalyst and solid support media under microwave irradiation. The protocol offers several advantages such as simple procedure, fast reaction rate, mild reaction condition, eco-friendly and improved yield as compared to conventional m

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