1
|
Katariya KD, Nakum KJ, Soni H, Nada S, Hagar M. Imine Based Four-Ring Chalcone-Ester Liquid Crystals: Synthesis, Characterization, Mesomorphic Behaviour and DFT approach. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
|
2
|
Dabhi RC, Sharma VS, Arya PS, Patel UP, Shrivastav PS, Maru JJ. Coumarin functionalized dimeric mesogens for promising anticoagulant activity: Tuning of liquid crystalline property. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
|
3
|
Katariya KD, Nakum KJ, Soni R, Soman SS, Nada S, Hagar M. Coumarin Schiff base derivatives: Synthesis, mesomorphic properties, photophysical properties and DFT studies. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
4
|
Katariya KD, Nakum KJ, Hagar M. New thiophene chalcones with ester and Schiff base mesogenic Cores: Synthesis, mesomorphic behaviour and DFT investigation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
5
|
Nakum KJ, Katariya KD, Hagar M, Jadeja RN. The influence of lateral hydroxyl group and molecular flexibility on the mesogenic behaviour of a new homologous series based on thiophene-chalcone: Synthesis, characterization, crystal structure and DFT study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
6
|
Katariya KD, Soni R, Nakum KJ, Soman SS, Hagaar M. Coumarin derivatives containing schiff base and ester mesogenic core: Synthesis, mesomorphic behaviour and DFT calculations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Coumarin Schiff base-esters liquid crystals with symmetrical and unsymmetrical alkoxy chains: Synthesis, mesomorphic properties and DFT approach. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119073] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
8
|
Mesomorphic behaviour, optical and quantum computational study: Effect of electron density on newly synthesized liquid crystalline positional isomers. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
9
|
New Self-Organizing Optical Materials and Induced Polymorphic Phases of Their Mixtures Targeted for Energy Investigations. Polymers (Basel) 2022; 14:polym14030456. [PMID: 35160446 PMCID: PMC8838461 DOI: 10.3390/polym14030456] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 02/07/2023] Open
Abstract
Herein, a new homologues series of fluorinated liquid crystal compounds, In, 4-(((4-fluorophenyl)imino)methyl)-2-methoxyphenyl 4-alkoxybenzoate were synthesized and its mesomorphic properties were investigated both experimentally and theoretically. The synthesized compounds were characterized by elemental analyzer, NMR, and FT-IR spectroscopy to deduce the molecular structures. The differential scanning calorimetry was employed to examine mesophase transitions whereas the polarized optical microscopy was used to identify the mesophases. The obtained results revealed that the purely nematic phase observed in all terminal side chains. All homologues showed to possess monotropic nematic mesophases except the derivative I8 exhibits enantiotropic property. The optimized geometrical structures of the present designed groups have been derived theoretically. The experimental data was explained using density functional theory computations. The estimated values of dipole moment, polarizability, thermal energy, and molecule electrostatic potential demonstrated that the mesophase stability and type could be illustrated. Binary phase diagram was constructed and addressed in terms of the mesomorphic temperature range and obtained polymorphic phases. It was found that incorporation of the terminal F-atom and lateral CH3O group influence both conformation and steric effect in pure and mixed states. The absorption and fluorescence emission spectra of fabricated films were recorded to elucidate the impact of terminal side chain on photophysical properties of synthesized liquid crystal. It was noted that the increase of terminal side chain length lead to reduction of optical band gap, whereas charge carrier lifetime increases.
Collapse
|
10
|
Salem MA, Abbas SY, Helal MH, Alzahrani AY. Synthesis and Biological Evaluation of Chromen-2-One and Chromen-2-Imine Derivatives Bearing Aryldiazenyl Moiety as Expected Antimicrobial Agents. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2021.2024583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mohamed A. Salem
- Department of Chemistry, Faculty of Science and Arts, King Khalid University, Mohail, Assir, Saudi Arabia
- Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Samir Y. Abbas
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Cairo, Egypt
| | - Mohamed H. Helal
- Department of Chemistry, Faculty of Arts and Science, Northern Border University, Rafha, Saudi Arabia
| | - Abdullah Y. Alzahrani
- Department of Chemistry, Faculty of Science and Arts, King Khalid University, Mohail, Assir, Saudi Arabia
| |
Collapse
|
11
|
Zerangnasrabad S, Jabbari A, Khavari Moghadam E, Sadeghian H, Seyedi SM. Design, synthesis, and structure-activity relationship study of O-prenylated 3-acetylcoumarins as potent inhibitors of soybean 15-lipoxygenase. Drug Dev Res 2021; 82:826-834. [PMID: 33416204 DOI: 10.1002/ddr.21787] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 02/01/2023]
Abstract
In this work, the design, synthesis, and structure-activity relationships of a novel array of geranyloxy and farnesyloxy 3-acetylcoumarins were reported as potent soybean 15-lipoxygenase inhibitors. Among the prepared coumarins, 7-farnesyloxy-3-acetylcoumarin (12b) was found to be the most potent inhibitor by IC50 = 0.68 μM while O-geranyl substituents at positions 5 and 6 of 3-acetylcoumarin (10a and 11a) were not inhibitors. Using docking studies, the binding affinity and the preferred pose of synthetic compounds were considered. It was found that lipoxygenase inhibitory activity and prenyl length chain were directly related. The hydrophobic cavity of the enzyme was more effectively occupied by the farnesyl moiety of the potent inhibitor 12b rather than other derivatives. Also, with this pose of farnesyl chain in 7-farnesyloxy-3-acetylcoumarins, the acetyl group could be directed to the hydrophilic pocket in the active site.
Collapse
Affiliation(s)
- Sara Zerangnasrabad
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Atena Jabbari
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Elahe Khavari Moghadam
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hamid Sadeghian
- Department of Laboratory Sciences, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Seyedi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
12
|
Overview on developed synthesis procedures of coumarin heterocycles. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01984-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractConsidering highly valuable biological and pharmaceutical properties of coumarins, the synthesis of these heterocycles has been considered for many organic and pharmaceutical chemists. This review includes the recent research in synthesis methods of coumarin systems, investigating their biological properties and describing the literature reports for the period of 2016 to the middle of 2020. In this review, we have classified the contents based on co-groups of coumarin ring. These reported methods are carried out in the classical and non-classical conditions particularly under green condition such as using green solvent, catalyst and other procedures.
Collapse
|
13
|
Durgapal SD, Soman SS, Umar S, Balakrishnan S. Synthesis and studies of flavone and bis-flavone derivatives. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1781186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sunil Dutt Durgapal
- Department of Chemistry, Faculty of Science, The M. S. University of Baroda, Vadodara, India
| | - Shubhangi S. Soman
- Department of Chemistry, Faculty of Science, The M. S. University of Baroda, Vadodara, India
| | - Shweta Umar
- Department of Zoology, Faculty of Science, The M. S. University of Baroda, Vadodara, India
| | - Suresh Balakrishnan
- Department of Zoology, Faculty of Science, The M. S. University of Baroda, Vadodara, India
| |
Collapse
|