Log in

Relevant bibliographies by topics / Arylidenes / Journal articles

To see the other types of publications on this topic, follow the link: Arylidenes.

Journal articles on the topic 'Arylidenes'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Arylidenes.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

El-Sayed Ebead, Eman, Asmaa Aboelnaga, Ekhlass Nassar, Mohamed M. Naguib, and Mahmoud F. Ismail. "Ultrasonic-induced synthesis of novel diverse arylidenes via Knoevenagel condensation reaction. Antitumor, QSAR, docking and DFT assessment." RSC Advances 13, no. 42 (2023): 29749–67. http://dx.doi.org/10.1039/d3ra05799b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Ibrahim, Hamada Mohamed, Wael Abdelgayed Ahmed Arafa, and Haider Behbehani. "l-Proline catalyzed one-pot synthesis of polysubstituted pyridine system incorporating benzothiazole moietyviasustainable sonochemical approach." RSC Advances 8, no. 66 (2018): 37606–17. http://dx.doi.org/10.1039/c8ra07013j.

Full text

Abstract:

Thel-proline catalyzed ultrasonic-mediated synthesis of polysubstituted pyridone derivatives through the reaction ofN-(benzothiazol-2-yl)-2-cyanoacetamides with an assortment of arylidenes has demonstrated as an efficient protocol.

APA, Harvard, Vancouver, ISO, and other styles

3

Apoorva, Upadhyay, K. Srivastava S., D. Srivastava S., and Upadhyay Navneeta. "Microwave assisted synthesis of 4-thiazolidinones and its 5-arylidene derivatives : Screening of antimicrobial activity with various microorganisms." Journal of Indian Chemical Society Vol. 88, Jul 2011 (2011): 1025–31. https://doi.org/10.5281/zenodo.5785163.

Full text

Abstract:

Synthetic Organic Chemistry Laboratory, Department of Chemistry, Dr. H. S. Gour University (A Central University), Sagar-470 003, Madhya Pradesh, India <em>E-mail</em> : upadhyay .apoorva@gmail.com Department of Chemistry, Chameli Devi Institute of Technology, Indore, Madhya Pradesh, India <em>Manuscript received 06 April 2010, revised 29 December 2010, accepted 30 December 2010</em> Several new ethyl(isonicotinamid-4-yl)acetate (1), 2-(isonicotinamid-4-yl)acetohydrazide (2), 2-(isonicotinamid- 4-yl)acetylhydrazino arylidenes (3a-j), 2-aryl-3-[(isonicotinamid-4-yl)acetamido]-4-oxo-1,3-thiazoli

APA, Harvard, Vancouver, ISO, and other styles

4

George, S., R. Chakraborty, F. Saleshier, and T. K. Ravi. "SYNTHESIS OF NOVEL BENZOTRIAZOLYL FORMAZANS AND THEIR ANTIMICROBIAL AND ANTIOXIDANT ACTIVITY." INDIAN DRUGS 50, no. 11 (2013): 29–33. http://dx.doi.org/10.53879/id.50.11.p0029.

Full text

Abstract:

Benzotriazolyl hydrazide (2) has been obtained from the ester ethyl benzotriazolyl acetate (1). The hydrazide with various aromatic aldehydes in presence of glacial acetic acid gave corresponding arylidenes 3(a-h). The arylidenes were made to react with fluoro substituted diazonium salt whereby, benzotriazolyl formazans 4(a-h) were obtained. The structures of the compounds were confirmed by FTIR, 1 H-NMR, mass spectral data and elemental analysis. All the synthesized compounds were screened for their in-vitro antimicrobial activity against the bacterial strains Bacillus subtilis and Escherichi

APA, Harvard, Vancouver, ISO, and other styles

5

Khattab, Ahmed F., and Farag A. El-Essawy. "Formation of Novel Pyrido[3′,2′:4,5]Thieno [2,3-e][1,2,4]Triazolo[4,3-c] Pyrimidines and their Acyclic C-Nucleosides Analogues: Synthesis of 3-(Alditol-1-yl)Pyridothienotriazolopyrimidines." Journal of Chemical Research 2005, no. 11 (2005): 736–40. http://dx.doi.org/10.3184/030823405774909298.

Full text

Abstract:

A series of the hydrazones were prepared by the reaction of 4-hydrazino-7,9-dimethylpyrido[3′,2′:4,5]thieno [2,3-d]pyrimidine (1) with monosaccharides, and their acetylation was studied. The oxidative cyclisation of the hydrazones 3a–c gave 3-(Alditol-1-yl)-pyridothienotriazolopyrimidenes 5a–c, whose acetylation was carried out. Also, oxidative cyclisation of arylidenes 7a,b gave the pyridothienotriazolopyrimidines 8a,b.

APA, Harvard, Vancouver, ISO, and other styles

6

Gouda, Moustafa. "LiOH.H2O as a catalyst for Knoevenagel and Gewald reactions." Polish Journal of Chemical Technology 12, no. 4 (2010): 31–35. http://dx.doi.org/10.2478/v10026-010-0046-6.

Full text

Abstract:

LiOH.H2O as a catalyst for Knoevenagel and Gewald reactions Commercial available lithium hydroxide monohydrate LiOH.H2O was found to be a novel ‘dual activation’ catalyst for tandem cross Knoevenagel condensation between malononitrile or ethylcyanoacetate and aromatic aldehydes leading to an efficient and easy synthesis of the corresponding arylidenes at room temperature in a short reaction time. In the case of salicyaldehyde the reaction lead to the formation of 3-substituted coumarins. The high efficacy, cheapness and easy availability of LiOH.H2O prompted us to investigate its validity as a

APA, Harvard, Vancouver, ISO, and other styles

7

Sonia, George, Knolin K. Thachil, Manoj Kumar Parameswaran, and Ravi Thengungal Kochupappy. "Synthesis of some benzoxazinyl pyrazolone arylidenes as potent antimicrobials and antioxidants." Medicinal Chemistry Research 23, no. 3 (2013): 1320–26. http://dx.doi.org/10.1007/s00044-013-0719-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Kohli, P., S. D. Srivastava, and S. K. Srivastava. "Synthesis and Biological Activity of Mercaptobenzoxazole Based Thiazolidinones and Their Arylidenes." Journal of the Chinese Chemical Society 54, no. 4 (2007): 1003–10. http://dx.doi.org/10.1002/jccs.200700144.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

El-Haty, M. T., A. E. Mohamed, F. A. Adam, and A. A. Gabr. "Spectral behaviour and acidity constants of some arylidenes—2-amino-1,3-pyrimidine." Spectrochimica Acta Part A: Molecular Spectroscopy 46, no. 12 (1990): 1743–49. http://dx.doi.org/10.1016/0584-8539(90)80246-u.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

El-Haty, MohamedT, AdilaE Mohamed, FaroukA Adam, and AzzaA Gabr. "Spectral behaviour and acidity constants of some arylidenes—2-amino-1,3-pyrimidine." Spectrochimica Acta Part A: Molecular Spectroscopy 47, no. 1 (1991): 149. http://dx.doi.org/10.1016/0584-8539(91)80187-n.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Mahmoud, M. R., M. M. A. Hamed, M. S. K. Youssef, and S. A. El-Gyar. "Mono-and bi-nuclear metal complexes of the Schiff bases, arylidenes-anthranilic acid." Bulletin des Sociétés Chimiques Belges 92, no. 8 (2010): 721–30. http://dx.doi.org/10.1002/bscb.19830920807.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

D., K. Raikwar, K. Srivastava S., and D. Srivastava S. "Synthesis of some new arylidenes-substituted phenyl-1,3,4-thiadiazol-4-oxothiazolidines : Antimicrobial and diuretic activities." Journal of Indian Chemical Society Vol. 85, Jan 2008 (2008): 78–84. https://doi.org/10.5281/zenodo.5808560.

Full text

Abstract:

Synthetic Organic Chemistry Laboratory, Department of Chemistry, Dr. H. S. Gour University, Sagar-470 003, Madhya Pradesh, India <em>E-mail:</em> professorsks@rediffmail.com Manuscript received 9 January 2007, revised 21 August 2007, accepted 16 October 2007 A series of new [2-(substituted aryl)-3-{5-(substituted phenyl)-1,3,4-thiadiazol}]-4-oxo-thiazolidines, 3(ao) have been synthesized via the condensation of 5-(substituted phenyl)-2-(2-substituted benzylidene amino)-1,3,4- thiadiazoles, 2(a-o) with thioglycolic acid. The compounds 2(a-o) were synthesized from 5-(substituted phenyl)-2- amino

APA, Harvard, Vancouver, ISO, and other styles

13

Chaurasiya, Abhishek, and Pooja A. Chawla. "Synthetic strategy of 2-thioxo-4-thiazolidinone with core chemistry and biological importance." Pharmaspire 14, no. 03 (2022): 97–103. http://dx.doi.org/10.56933/pharmaspire.2022.14212.

Full text

Abstract:

Due to the vast range of biological actions that rhodanine and its derivatives exhibit, they are recognized as privileged structures in pharmacological research. However, the rhodanine skeleton synthesis process has certain limitations. However, the rhodanine ring’s reactivity enabled the creation of various arylidenes at position 5 and carboxylic acids at position 3, respectively. The principal pathways of heterocycle alteration are determined by the most reactive sites in 4-thiazolidinone, which are 3 and 5. In a review paper, the chemistry of 4-thiazolidinones was discussed, in particular t

APA, Harvard, Vancouver, ISO, and other styles

14

S., K. Srivastava, Srivastava S., and D. Srivastava S. "Synthesis of 2-aryl-3-(N9-carbazolylacetamidyl)-4-oxothiazolidines and their 5-arylidenes as antifungal and analgesic agents." Journal of Indian Chemical Society Vol. 78, Jun 2001 (2001): 320–22. https://doi.org/10.5281/zenodo.5883402.

Full text

Abstract:

Synthetic Organic Chemistry Laboratory, Department of Chemistry, Dr. H. S. Gour University, Sagar-470 003, India <em>Manuscript received 17 July 2000. revised 30 October 2000, accepted 26 December 2000</em> Several 2-aryl-3-(<em>N</em><sup>9</sup> -carbazolylacetamidyl)-4-oxothiazolidines (4) and 2-aryl-3-(<em>N</em><sup>9 </sup>-carbazolylacetamidyl)-5-arylidenc-4-oxothiazolidines (5) have been synthesised and tested for their antifungal and analgesic activities.

APA, Harvard, Vancouver, ISO, and other styles

15

Sh. El-Sharief, A. M., F. F. Mahmoud, N. M. Taha, and E. M. Ahmed. "Reactions of Cyanothioformamide and Thiohydantoin Derivatives With Some Arylidenes of Cyanothioacetamide and Other Elecetrophilic and Nucleophilic Reagents." Phosphorus, Sulfur, and Silicon and the Related Elements 180, no. 2 (2005): 573–89. http://dx.doi.org/10.1080/104265090517343.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Said, Gehad E., Margret M. Girges, and Ebrahim Abdel-Galil. "Synthesis, Antioxidant, and Antimicrobial Activity of Novel Hydrazones, Arylidenes, and Heterocycles Using 3,5-Diphenylcyclohex-2-en-1-one." Russian Journal of General Chemistry 91, no. 12 (2021): 2527–38. http://dx.doi.org/10.1134/s1070363221120240.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Patel, Bhargav A., Ramalingam Krishnan, Nikhil Khadtare, et al. "Design and synthesis of l- and d-phenylalanine derived rhodanines with novel C5-arylidenes as inhibitors of HCV NS5B polymerase." Bioorganic & Medicinal Chemistry 21, no. 11 (2013): 3262–71. http://dx.doi.org/10.1016/j.bmc.2013.03.041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Srivastava, S. K., S. Srivastava, and S. D. Srivastava. "ChemInform Abstract: Synthesis of 2-Aryl-3-(N9-carbazolylacetamidyl)-4-oxothiazolidines and Their 5-Arylidenes as Antifungal and Analgesic Agents." ChemInform 33, no. 19 (2010): no. http://dx.doi.org/10.1002/chin.200219118.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Elbastawesy, Mohammed A. I., Mohamed Ramadan, Yaseen A. M. M. El-Shaier, Ashraf A. Aly, and Gamal El-Din A. Abuo-Rahma. "Arylidenes of Quinolin-2-one scaffold as Erlotinib analogues with activities against leukemia through inhibition of EGFR TK/ STAT-3 pathways." Bioorganic Chemistry 96 (March 2020): 103628. http://dx.doi.org/10.1016/j.bioorg.2020.103628.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Laga, Eduardo, David Dalmau, Sofía Arregui, et al. "Fluorescent Orthopalladated Complexes of 4-Aryliden-5(4H)-oxazolones from the Kaede Protein: Synthesis and Characterization." Molecules 26, no. 5 (2021): 1238. http://dx.doi.org/10.3390/molecules26051238.

Full text

Abstract:

The goal of the work reported here was to amplify the fluorescent properties of 4-aryliden-5(4H)-oxazolones by suppression of the hula-twist non-radiative deactivation pathway. This aim was achieved by simultaneous bonding of a Pd center to the N atom of the heterocycle and the ortho carbon of the arylidene ring. Two different 4-((Z)-arylidene)-2-((E)-styryl)-5(4H)-oxazolones, the structures of which are closely related to the chromophore of the Kaede protein and substituted at the 2- and 4-positions of the arylidene ring (1a OMe; 1b F), were used as starting materials. Oxazolones 1a and 1b we

APA, Harvard, Vancouver, ISO, and other styles

21

R., Yadav, K. Raikwar D., and K. Srivastava S. "Evaluation of antimicrobial and diuretic activities of some new synthesized : 5-(substituted arylidenes)-2-(substituted aryl)-3-(4-nitrophenoxy acetamido)-4-oxo-thiazolidines derivatives." Journal of Indian Chemical Society Vol. 86, Feb 2009 (2009): 195–98. https://doi.org/10.5281/zenodo.5808543.

Full text

Abstract:

Department of Chemistry Dr. H. S. Gour University, Sagar-470 003, Madhya Pradesh, India <em>E-mail</em>: rituyadav197l@yahoo.co.in <em>Manuscript received 21 February 2008, revised 6 August 2008, accepted 24 September 2008</em> Twenty seven new arylidino phenoxy acetamido 4-oxo-thiazolidine derivatives were synthesized and evaluated for their antimicrobial and diuretic activities. The structures of all newly synthesized compounds have been determined by elemental analysis, IR, <sup>1</sup>H NMR and mass spectroscopic techniques. Some of the compounds shows good pharmacological results.

APA, Harvard, Vancouver, ISO, and other styles

22

Geies, A. A., A. M. Kamal El-Dean, and M. I. Abdel Monem. "Reinvestigation of the Reaction of Arylidene Malononitrile with Cyanothioacetamide: New Approach for the Synthesis of Pyridine Derivatives." Zeitschrift für Naturforschung B 47, no. 10 (1992): 1438–40. http://dx.doi.org/10.1515/znb-1992-1015.

Full text

Abstract:

Arylidene malononitrile reacted with cyanothioacetamide under basic condition to afford the pyridine derivative (2). The same product was obtained from the reaction of arylidene ethylcyanoacetate, arylidene diethyl malonate, arylidene pyrazolinone with cyanothioacetamide under the same condition. A resonable mechanism for this behaviour was suggested.

APA, Harvard, Vancouver, ISO, and other styles

23

Khankischpur, Mehdi, Rolf D. Walter, and Thomas Kurz. "Synthesis and Antiplasmodial Activity of 4-Alkylidene(arylidene)hydrazono-1,3-oxazinan-2-ones and 3-Hydroxy-N'-alkylidene(arylidene)propanehydrazonamides." Australian Journal of Chemistry 63, no. 10 (2010): 1430. http://dx.doi.org/10.1071/ch10052.

Full text

Abstract:

Previously unreported 6-substituted 4-alkylidene(arylidene)hydrazono-1,3-oxazinan-2-ones and a series of open-chained 3-hydroxy-N′-alkylidene(arylidene)propanehydrazonamides were synthesized and evaluated for their in vitro antiplasmodial activity. The most active 3-hydroxy-N′-alkylidene(arylidene)propanehydrazonamide exhibits potent in vitro antiplasmodial activity against the chloroquine-sensitive strain 3D7 of Plasmodium falciparum and demonstrates an IC50 value of 0.2 µM.

APA, Harvard, Vancouver, ISO, and other styles

24

Mondal, Rina, Tapas K. Mandal та Asok K. Mallik. "An Expeditious and Safe Synthesis of Some Exocyclic α,β-Unsaturated Ketones by Microwave-Assisted Condensation of Cyclic Ketones with Aromatic Aldehydes over Anhydrous Potassium Carbonate". Organic Chemistry International 2012 (23 грудня 2012): 1–8. http://dx.doi.org/10.1155/2012/456097.

Full text

Abstract:

A rapid, efficient, and solvent-free methodology for synthesis of exocyclic α,β-unsaturated ketones of the categories E-3-arylidene-4-chromanones, E-2-arylidene-1-tetralones, E-2-arylidene-1-indanones, E-3-cinnamylidene-4-chromanones, E-2-cinnamylidene-1-tetralones, E-2-cinnamylidene-1-indanones, α,α′-(E,E)-bis(arylidene)-cycloalkanones, and α,α′-(E,E)-bis(cinnamylidene)-cycloalkanones has been developed through cross-aldol condensation of the constituent cyclic ketones and aldehydes by microwave irradiation over anhydrous potassium carbonate. However, for condensation of 1-thio-4-chromanones

APA, Harvard, Vancouver, ISO, and other styles

25

Basavaiah, Deevi, and Daggula Mallikarjuna Reddy. "The Baylis–Hillman acetates in organic synthesis: Unprecedented sodium nitrite induced intramolecular Friedel–Crafts cyclization of secondary nitro compounds." RSC Adv. 4, no. 46 (2014): 23966–70. http://dx.doi.org/10.1039/c4ra03573a.

Full text

Abstract:

Unprecedented sodium nitrite mediated intramolecular Friedel–Crafts cyclization of alkyl (E)-2-arylidene-4-nitroalkanoates and (E)-3-arylidene-5-nitroalkan-2-ones derived from Baylis–Hillman acetates has been described.

APA, Harvard, Vancouver, ISO, and other styles

26

Aggarwal, Ranjana, Naman Jain, and Gyan Prakash Dubey. "Design, synthesis and characterization of tetra substituted 2,3-dihydrothiazole derivatives as DNA and BSA targeting agents: advantages of the visible-light-induced multicomponent approach." RSC Advances 14, no. 32 (2024): 23152–76. http://dx.doi.org/10.1039/d4ra02331e.

Full text

Abstract:

This report describes the visible-light-induced one-pot multicomponent regioselective synthesis of a series of 5-aroyl-3-((arylidene)amino)-2-((arylidene)hydrazono)-4-methyl-2,3-dihydrothiazoles as DNA and BSA targeting agents.

APA, Harvard, Vancouver, ISO, and other styles

27

Abd-Alla, Mohamed A., Maher F. El-Zohry, and Mohamed A. Osman. "Arylidene polymers." Polymer Bulletin 25, no. 3 (1991): 287–92. http://dx.doi.org/10.1007/bf00316896.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Abd-Alla, Mohamed A., and Mohamed M. M. Abd El-Wahab. "Arylidene polymers." Thermochimica Acta 222, no. 2 (1993): 255–63. http://dx.doi.org/10.1016/0040-6031(93)80558-r.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Abd El-Wahab, Mohamed M. M., and Mohamed A. Abd-Alla. "Arylidene Polymers—XXII. Thermogravimetric and Kinetic Analyses of Non-isothermal Decomposition of Organometallic Arylidene Polyester." High Performance Polymers 4, no. 4 (1992): 215–24. http://dx.doi.org/10.1088/0954-0083/4/4/002.

Full text

Abstract:

Studies of non-isothermal decomposition of certain iodo-organometallic arylidene polyesters and organometallic arylidene polyesters have been performed with TGA measurements at atmospheric pressure. The analysis of the non-isothermal TG and DTG curves of the samples under investigation revealed that their decomposition course proceeds via three stages. The kinetic parameters such as activation energy (E,), preexponential factor (A) and entropy of activation (AS*) for all polymers at different decomposition stages are determinedfrom an appropriate kinetic equation. More particularly, the data s

APA, Harvard, Vancouver, ISO, and other styles

30

Kouzi, Olympia, Eleni Pontiki, and Dimitra Hadjipavlou-Litina. "2-Arylidene-1-indandiones as Pleiotropic Agents with Antioxidant and Inhibitory Enzymes Activities." Molecules 24, no. 23 (2019): 4411. http://dx.doi.org/10.3390/molecules24234411.

Full text

Abstract:

Indandiones are a relatively new group of compounds presenting a wide range of biological activities. The synthesis of these compounds was performed via a Knoevenagel reaction between an aldehyde and 1,3-indandione and were obtained with a yield up to 54%. IR, 1H-Nucleic Magnetic Resonance (NMR), 13C-NMR, LC/MS ESI+ and elemental analysis were used for the confirmation of the structures of the novel derivatives. Lipophilicity values of compounds were calculated theoretically and experimentally by reversed chromatography method as values RM. The novel derivatives were studied through in vitro a

APA, Harvard, Vancouver, ISO, and other styles

31

Nakayama, Kaii, Hidehiro Kamiya, and Yohei Okada. "Radical cation Diels–Alder reactions of arylidene cycloalkanes." Beilstein Journal of Organic Chemistry 18 (August 25, 2022): 1100–1106. http://dx.doi.org/10.3762/bjoc.18.112.

Full text

Abstract:

TiO2 photoelectrochemical and electrochemical radical cation Diels–Alder reactions of arylidene cycloalkanes are described, leading to the construction of spiro ring systems. Although the mechanism remains an open question, arylidene cyclobutanes are found to be much more effective in the reaction than other cycloalkanes. Since the reaction is completed with a substoichiometric amount of electricity, a radical cation chain pathway is likely to be involved.

APA, Harvard, Vancouver, ISO, and other styles

32

Guarda, V. L. M., C. Bosso, S. L. Galdino, et al. "Mass spectrometry of some arylidene thioxobenzyl or thioxobiphenyloxoethyl thiazolidinone compounds." Spectroscopy 18, no. 4 (2004): 613–19. http://dx.doi.org/10.1155/2004/175870.

Full text

Abstract:

This paper reports the results of a comparative study of the electron impact mass spectrometry data for a series of previously synthetized 5-arylidene-3-(4-chloro-benzyl)-4-thioxo-thiazolidin-2-one, and 5-arylidene-3-(2-biphenyl-4-yl-2-oxo-ethyl)-4-thioxo-thiazolidin-2-one derivatives. Theoretical calculations of molecular mechanics, MOPAC‒AM1, were used to explain the fragmentations observed.

APA, Harvard, Vancouver, ISO, and other styles

33

Mehrabi, Hossein, Faezeh Najafian-Ashrafi, Zeinab Esfandiarpour, and Reza Ranjbar-Karimi. "Synthesis of 2-aryl-1H-Benzimidazoles and 2-aryl-1H-perimidines Using Arylidene Meldrum's Acid as a Source of the Aryl Group and Oxidant." Journal of Chemical Research 42, no. 3 (2018): 125–28. http://dx.doi.org/10.3184/174751918x15199196317528.

Full text

Abstract:

Arylidene Meldrum's acid is employed as a source of the aryl group and oxidant for the synthesis of 2-aryl-1 H–benzimidazoles by a condensation reaction with 1,2-phenylenediamine in refluxing ethanol with good to high yields. Arylidene Meldrum's acids were also used as a source of the aryl group and oxidant for the synthesis of 2-aryl-1 H-perimidines by a condensation reaction with 1,8-diaminonaphthalene in refluxing ethanol with high yields.

APA, Harvard, Vancouver, ISO, and other styles

34

Bhawani, Singh, Kumar Baregama Lalit, Sharma Ranjana, Ahmed Maqbool, and L. Talesara G. "Synthesis of alkoxyphthalimide derivatives of p-bis-(2-hydroxy-4-aryl-6-iminothiazolidino[ 4,5-b ]pyrimidin-N6-yl)biphenyls." Journal of Indian Chemical Society Vol. 82, Apr 2005 (2005): 337–41. https://doi.org/10.5281/zenodo.5827470.

Full text

Abstract:

Synthetic Organic Chemistry Laboratory, Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313 001, India <em>E-mail</em> : gtalesara@yahoo.com; bsyadav2000@rediffmail.com <em>Manuscript received 5 May 2004, revised 1 November 2004, accepted 5 January 2005</em> Biphcnyl-yl-4,4' -bisthiourea 1 reacts with monochloroacetic acid in presence of anhydrous sodium acetate to furnish <em>p</em>-bis-(2-iminothiazolidin-4-one-<em>N</em><sup>2</sup> -yl)hiphenyl 2. Condensation of ω-hromoalkoxyphthalimides 3a-c with 2 gave corresponding alkoxyphthalimidc derivatives 4a-c. In the com

APA, Harvard, Vancouver, ISO, and other styles

35

El Ashry, El Sayed H., Laila F. Awad, Mahmoud Nasr, Ahmed A. Kassem, and Mohamed A. Zakaria. "Novel Synthesis of N-(1,3-Dioxoisoindol-2-yl)aminothiocarbohydrazide, and its Arylidenes and Glycosylidines as Precursors for Hybrids with Thiadiazoline Ring. Equilibration of the Glycosylidine Open Chain with the Cyclic Structures and Conformation of the Acyclic Analogues." Current Organic Synthesis 15, no. 7 (2018): 1005–13. http://dx.doi.org/10.2174/1570179415666180731123111.

Full text

Abstract:

Aim and Objective: Reaction of phthalic anhydride (1) with thiocarbohydrazide (2) in methanol gave the intermediate (6) whose boiling in water or ethanol gave N-(1,3-dioxoisoindol-2-yl)aminothiocarbohydrazide (5); where its Condensation with aldehydes and aldoses 9a-d afforded the respective thiosemicarbazide derivatives. The manno-derivative 10, the D-galacto derivative 11 and the L-arabino derivative 12 exist in the cyclic pyranosyl structures undergo equilibration, in solution of DMSO, with their acyclic structures. Dehydrative cyclization to the thiadiazoline derivatives and the acyclo C-n

APA, Harvard, Vancouver, ISO, and other styles

36

Karataş, Semra, İrfan Çapan, and Süleyman Servi. "Synthesis of Indole and Benzimidazole Substituted Novel 16-Arylidene Steroid Derivatives." Letters in Organic Chemistry 16, no. 11 (2019): 884–90. http://dx.doi.org/10.2174/1570178616666190305130217.

Full text

Abstract:

Novel aza-heterocyclic substituted dehydroepiandrosterone derivatives were synthesized through a three-step reaction sequence. Some new O-alkylated 4-hydroxybenzaldehydes were synthesized from the reaction of substituted benzaldehydes with dihalogen compounds which have different chain lengths. 16-Arylidene steroids were synthesized from the base-catalyzed aldol condensation of O-alkylated 4-hydroxybenzaldehydes and dehydroepiandrosterone. New indolyl and benzimidazolyl substituted steroid derivatives as hybrid molecules were obtained from the reaction of 16-arylidene steroids with indole or b

APA, Harvard, Vancouver, ISO, and other styles

37

Zhang, Xia, Pingping Fan, Shigui Wei, Yonghong Du, Jinjing Li, and Chengyang Shi. "Novel 3-aroyl-5-arylidene-1,3-thiazolidine-2,4-diones: synthesis and antitumor activity." Mendeleev Communications 35, no. 2 (2025): 155–57. https://doi.org/10.71267/mencom.7605.

Full text

Abstract:

New 3-aroyl-5-arylidene-1,3-thiazolidine-2,4-diones were prepared by the Knoevenagel condensation of 1,3-thiazolidine-2,4-dione with aromatic aldehydes, conversion of the thus obtained 5-arylidene derivatives into the corresponding <em>N</em>-potassium salts, and their final <em>N</em>-acylation with acyl chlorides. The <em>in vitro</em> antitumor efficacy of the compounds was evaluated by the MTT method.

APA, Harvard, Vancouver, ISO, and other styles

38

Ibrahim, Hany S., Soha R. Abdelhadi, and Hatem A. Abdel-Aziz. "Hydrolysis and Hydrazinolysis of Isatin-Based Ald- and Ketazines." Journal of Chemistry 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/826489.

Full text

Abstract:

The hydrolysis of isatin aldazine4a–dafforded the unexpected 3,3′-(hydrazine-1,2-diylidene)bis(indolin-2-one) (5) and 1,2-di(arylidene)hydrazines6a–dthrough dual hydrolysis of4a–d. A mechanism to explain the formation of5and6a–dwas proposed. In addition, the hydrazinolysis of4a–dyielded 3-hydrazonoindolin-2-one (2) and 1,2-di(arylidene)hydrazines6a–dinstead of hydrazones17a–d, while hydrazinolysis of isatin ketazine5gave the expected 3-hydrazonoindolin-2-one (2). These results indicated the ability of the title compounds for unusual hydrolysis and hydrazinolysis reactions.

APA, Harvard, Vancouver, ISO, and other styles

39

Husain, Asif, Mumtaz Alam, and Nadeem Siddiqui. "Synthesis, reactions and biological activity of 3-arylidene-5-(4-methylphenyl)-2(3H)-furanones?" Journal of the Serbian Chemical Society 74, no. 2 (2009): 103–15. http://dx.doi.org/10.2298/jsc0902103h.

Full text

Abstract:

3-Arylidene-5-(4-methylphenyl)-2(3H)-furanones 2a-m were prepared from 3-(4-methyl-benzoyl)propanoic acid 1 and several aromatic aldehydes. Some of the selected furanones were reacted with ammonia gas and benzylamine to give corresponding 3-arylidene-1,3-dihydro-5-(4-methylphenyl)-2H-pyrrol- 2-ones 3a-h and 3-arylidene-1-benzyl-1,3-dihydro-5-(4-methylphenyl)-2H- -pyrrol-2-ones 4a-f, respectively, which were characterized on the basis of IR, 1H-NMR, mass spectral data and elemental analysis results. These compounds were tested for their anti-inflammatory and antibacterial activities. The compou

APA, Harvard, Vancouver, ISO, and other styles

40

Ershova, Anastasia I., Sergey V. Fedoseev, Konstantin V. Lipin, Mikhail Yu Levlev, Oleg E. Nasakin, and Oleg V. Ershov. "Tunable full-color dual-state (solution and solid) emission of push–pull molecules containing the 1-pyrindane moiety." Beilstein Journal of Organic Chemistry 20 (November 19, 2024): 3016–25. http://dx.doi.org/10.3762/bjoc.20.251.

Full text

Abstract:

A facile method for the synthesis of arylidene derivatives of pyrindane – (E)-7-arylmethylene-2-chloro-6,7-dihydro-5H-cyclopenta[b]pyridine-3,4-dicarbonitriles – was developed. Tunable full-color emission was achieved for the synthesized push–pull molecules, solely by changing donor groups while keeping both the conjugated system and acceptor part of the molecule unchanged. This represents a rare approach for the design of such fluorophores. Arylidene derivatives of pyrindane were found to be efficient fluorescent dyes showing a moderate to high emission quantum yield. The push–pull molecules

APA, Harvard, Vancouver, ISO, and other styles

41

Tzani, Andromachi, Eftichia Kritsi, Lamprini Tsamantioti, et al. "Synthesis, Conformational Analysis and ctDNA Binding Studies of Flavonoid Analogues Possessing the 3,5-di-tert-butyl-4-hydroxyphenyl Moiety." Antioxidants 11, no. 11 (2022): 2273. http://dx.doi.org/10.3390/antiox11112273.

Full text

Abstract:

Flavanones and their biochemical precursors, chalcones, are naturally occurring compounds and consist of privileged scaffolds used in drug discovery due to their wide range of biological activities. In this work, two novel flavanones (3 and 4), the arylidene flavanone 5, and the chalcone 6, displaying structural analogies with butylated hydroxytoluene (BHT), were synthesized via an aldol reaction. According to the antioxidant activity studies of the synthesized flavanones, the arylidene flavanone 5 was the most potent antioxidant (70.8% interaction with DPPH radical and 77.4% inhibition of lip

APA, Harvard, Vancouver, ISO, and other styles

42

Lozinskaya, Natalia A., Elena N. Bezsonova, Meriam Dubar, et al. "3-Arylidene-2-oxindoles as Potent NRH:Quinone Oxidoreductase 2 Inhibitors." Molecules 28, no. 3 (2023): 1174. http://dx.doi.org/10.3390/molecules28031174.

Full text

Abstract:

The enzyme NRH:quinone oxidoreductase 2 (NQO2) plays an important role in the pathogenesis of various diseases such as neurodegenerative disorders, malaria, glaucoma, COVID-19 and cancer. NQO2 expression is known to be increased in some cancer cell lines. Since 3-arylidene-2-oxindoles are widely used in the design of new anticancer drugs, such as kinase inhibitors, it was interesting to study whether such structures have additional activity towards NQO2. Herein, we report the synthesis and study of 3-arylidene-2-oxindoles as novel NRH:quinone oxidoreductase inhibitors. It was demonstrated that

APA, Harvard, Vancouver, ISO, and other styles

43

N. R., Mohame, El-Saidi M. M. T., Abdel Aziz S . A., and Zayed M. F. "The Behaviour of Arylidene Barbituric Acid and Cyclohexadione Derivatives Towards Tris(dimethy1amino)phosphin." Scientia Pharmaceutica 70, no. 2 (2002): 147–63. http://dx.doi.org/10.3797/scipharm.aut-02-17.

Full text

Abstract:

Tris(dimethy1amino)phosphine 1 reacted with phenylarylidene barbituric acids 4 to yield the triaminophosphonium dipolar ion adduct 7. 2-Arylidene-1,3- cyclohexanedione 5 and 2-Arylidene-5,5-dimethylcyclohaxane1-,3 -diones 6 reacted with phosphine 1 to produce the dioxyxanthenes 10 and 12, respectively. Structural assignments are based on analytical, chemical, and spectroscopic evidences. A mechanism is proposed to explain the formation of these compounds. The biological acitivity of the new synthesized compounds against Aphis Craccivora, a serious pest infecting many crops in Egypt, was studie

APA, Harvard, Vancouver, ISO, and other styles

44

Ali, Karim Ben, Najeh Boukamcha, Abdelkader Khemiss, and Marie-Thérèse Martin. "Synthesis and Structural Elucidation of Novel Spiropyrazolines Precursors to Spiro-gem-dimethylcyclopropanes." Journal of Chemical Research 2005, no. 8 (2005): 498–501. http://dx.doi.org/10.3184/030823405774663192.

Full text

Abstract:

1,3-dipolar cycloaddition reaction of 2-diazopropane (DAP) 1 with 2-arylidene-1-tetralone 2a–b led exclusively to spiro-Δ1-pyrazolines 3a–b. When 4-methyl-2-arylidene-1-tetralones 2c–d was used as starting dipolarophile a mixture of diastereiosomeric cycloadducts 4a–b and 5a–b was obtained. The photochemical nitrogen-extrusion studied for spiropyrazolines 3a–b and 4a–b led stereospecifically to spiro-gem-dimethylcyclopropanes. In all cases, the reaction regiochemistry and stereochemistry was discussed on the basis of 2D-NMR experiments.

APA, Harvard, Vancouver, ISO, and other styles

45

Hamama, Wafaa S., Osama M. Abd El-Magid, and Hanafi H. Zoorob. "Synthetic Entry to Tricyclic and Tetracyclic Quinuclidine Derivatives by Cycloaddition and Ring Transformation." Zeitschrift für Naturforschung B 61, no. 1 (2006): 93–100. http://dx.doi.org/10.1515/znb-2006-0119.

Full text

Abstract:

The (Z)-2-arylidene-quinuclidines 5 - 8 were synthesized. Their reaction with aliphatic dibasic functional reagents in both basic and acidic conditions afforded the fused heterocycles 9, 10 and 11. However, the reaction of arylidene derivative 5 with an aromatic dibasic functional reagent gave benzimidazole 13 in lieu of the anticipated tetracyclic system, quinuclidino[3,2-e]benzo[b]-1,4-diazepine 12. Cycloadditions of 5 with different reagents gave the heterocyclic derivatives 17, 19, 22 and 23. Acid-catalyzed cyclization of 5 with excess resorcinol gave 24. Compounds 9a, 19 and 24 showed ant

APA, Harvard, Vancouver, ISO, and other styles

46

Acharya, Pratap, Ranju Bansal, and Prashant Kharkar. "Hybrids of Steroid and Nitrogen Mustard as Antiproliferative Agents: Synthesis, In Vitro Evaluation and In Silico Inverse Screening." Drug Research 68, no. 02 (2017): 100–103. http://dx.doi.org/10.1055/s-0043-118538.

Full text

Abstract:

AbstractHybrids of 16E-arylidene steroids and nitrogen mustard have been synthesized and evaluated for their in vitro cytotoxic activity to develop tissue specific antineoplastic agents from steroids. These hybrids displayed specificity towards leukemia cell lines, however somewhat reduced potency was observed in comparison with the earlier reported 16E-arylidene steroids. The in silico reverse screening experiments were employed to find out the probable pharmacological mechanism of these hybrids. Molecular docking studies suggested glucocorticoid receptors as a probable target for the antileu

APA, Harvard, Vancouver, ISO, and other styles

47

Li, Yan, та Zhiqiang Zhang. "Computational study on NHC catalyzed [4+2] annulation between γ-chloroenals and pyrazolinones: mechanism and stereoselectivity". New Journal of Chemistry 44, № 27 (2020): 11643–51. http://dx.doi.org/10.1039/d0nj01499k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Dabholkar, Vijay, and Faisal Ansari. "Synthesis and characterization of selected fused isoxazole and pyrazole derivatives and their antimicrobial activity." Journal of the Serbian Chemical Society 74, no. 11 (2009): 1219–28. http://dx.doi.org/10.2298/jsc0911219d.

Full text

Abstract:

New potent antibacterials, fused isoxazole and pyrazole derivatives, were synthesized using 5,5-dimethylcyclohexane-1,3-dione (1) and 3-[(4-chlorobenzylidene) amino]-2-thioxoimidazolidin-4-one (2) as synthons. Aromatic aldehydes on condensation with 1 and 2 gave 2-arylidene-5,5-dimethylcyclohexane- 1,3-dione (3) and 5-arylidene-3-[(4-chlorobenzylidene)amino]-2-thioxoimidazolidin-4-one (4), respectively. Compounds 3 and 4 were forced to undergo heterocyclization reaction with nucleophilic reagents to give the title compounds. The newly synthesized heterocyles (5-8) were characterized based on t

APA, Harvard, Vancouver, ISO, and other styles

49

Ahmed, M., R. Sharma, D. P. Nagda, V. K. Salvi, and G. L. Talesara. "Synthetic studies of Alkoxy isoindole-1,3-diones tetra-azabenzo[f]azulenes and their Antibacterial activity." E-Journal of Chemistry 3, no. 1 (2006): 28–34. http://dx.doi.org/10.1155/2006/679374.

Full text

Abstract:

3-Methylpyrazol-5-one3reacts with substituted benzaldehydes4a-din the presence of anhydrous sodium acetate to produce the corresponding 4-arylidene-5-methyl-2,4-dihydro-pyrazol-3-ones5a-dand the condensation of5a-dwith 2-bromoalkoxy-1H-isoindole-1, 3-(2H)-diones2a-cfurnished corresponding 2-[2-(4-arylidene-3-methyl-5-oxo-4,5-dihydro-pyrazol-1-yl)alkoxy]-isoindole-1,3-diones6a-l, which on cyclisation with o-phenylendiamine give titled compounds7a-l. All the synthesized compounds have been characterized by elemental analysis and spectral data and screened for their antibacterial properties again

APA, Harvard, Vancouver, ISO, and other styles

50

Sengupta, Sumana, та Avijit Banerji. "[3+2] Cycloadditions: Part XXXIV: Further Investigations of Cycloadditions of C,N-Diaryl- and C-Aryl-N-methyl Nitrones to α,β-Unsaturated Esters". Asian Journal of Chemistry 31, № 12 (2019): 2777–84. http://dx.doi.org/10.14233/ajchem.2019.22232.

Full text

Abstract:

Investigations of [3+2] cycloadditions of C,N-diaryl and C-aryl-N-methyl nitrones as three atom components (TAC) to substituted methyl E-cinnamates and diethyl arylidene malonates have been further investigated. [3+2] Cycloadditions of cinnamates yielded mixtures of cycloadducts, the major products being the 3,4-trans-4,5-trans-2,3,5-triaryl-4-carbomethoxy products originating from the endo-carbonyl-exo-aryl meta channel approach of the cinnamate component. [3+2] Cycloadditions to diethyl arylidene malonates furnished single cycloadducts-3,5-trans-2-methyl-3,5-diaryl-4,4- dicarbethoxy isoxazol

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!