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Recent advances in transition metal-catalyzed reactions of chloroquinoxalines: Applications in bioorganic chemistry. Bioorg Chem 2022; 129:106195. [DOI: 10.1016/j.bioorg.2022.106195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 11/23/2022]
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Ishii T, Isozaki T, Kinoshita S, Takeuchi R, Kashihara W, Suzuki T. A Substituent Effect on Two-Photon Absorption of Diphenylacetylene Derivatives with an Electron-Donating/Withdrawing Group. J Phys Chem A 2021; 125:1688-1695. [PMID: 33600722 DOI: 10.1021/acs.jpca.0c10545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two-photon absorption for diphenylacetylene derivatives with an electron-donating (ED) or electron-withdrawing (EW) group (DPA-Rs) was investigated by high-sensitivity optical-probing photoacoustic spectroscopy. Two-photon absorption spectra and two-photon absorption cross sections σ(2) for DPA-Rs were successfully obtained. Two-photon absorption spectra of DPA-Rs with stronger ED or EW groups display more significant red-shifts and larger σ(2) values. Simulated two-photon absorption spectra, using time-dependent density functional theory within the Tamm-Dancoff approximation, compared well with the experimental spectra. Based on the three-state model, the substituent effect on the two-photon absorption for DPA-Rs was expected to manifest in the transition dipole moments and detuning energies. Information obtained from investigating the monosubstituent effect on two-photon absorption of DPA is critical for an improved understanding of two-photon absorption.
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Affiliation(s)
- Tetsuro Ishii
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Tasuku Isozaki
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.,Division of Natural Sciences, College of Arts and Sciences, J. F. Oberlin University, 3758 Tokiwa-machi, Machida, Tokyo 194-0294, Japan
| | - Sho Kinoshita
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Ryo Takeuchi
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Wataru Kashihara
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Tadashi Suzuki
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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Keivanloo A, Abbaspour S, Sepehri S, Bakherad M. Synthesis, Antibacterial Activity and Molecular Docking Study of a Series of 1,3-Oxazole-Quinoxaline Amine Hybrids. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1833052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ali Keivanloo
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | - Sima Abbaspour
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
| | - Saghi Sepehri
- Department of Medicinal Chemistry, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mohammad Bakherad
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran
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Keivanloo A, Lashkari S, Sepehri S, Bakherad M, Abbaspour S. Ligand-assisted click reaction for the synthesis of new hybrid compounds based on 1,2,3-triazoles and 5,5-diphenylimidazolidine-2,4-dione and evaluation of their antibacterial activities. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02616-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Keivanloo A, Lashkari S, Bakherad M, Fakharian M, Abbaspour S. One-pot sequential coupling reactions as a new practical protocol for the synthesis of unsymmetrical 2,3-diethynyl quinoxalines and 4-ethynyl-substituted pyrrolo[1,2-a]quinoxalines. Mol Divers 2020; 25:981-993. [PMID: 32301033 DOI: 10.1007/s11030-020-10083-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/01/2020] [Indexed: 01/07/2023]
Abstract
One palladium-catalyzed sequential coupling reactions were successfully used as a new protocol for the synthesis of unsymmetrical 2,3-diethynyl quinoxalines and 4-ethynyl-substituted pyrrolo[1,2-a]quinoxalines. The one-pot two coupling reactions of 2,3-dichloroquinoxaline, with two different terminal alkynes, under controlled conditions produced selectively unsymmetrical 2,3-diethynyl quinoxalines with high yields. When one of the two terminal alkynes was 3-propyne-1-ol, in the presence of secondary amines, cyclization occurred and 4-ethynyl-substituted pyrrolo[1,2-a]quinoxalines were successfully formed. All synthesized compounds were tested against the two bacterial strains including Micrococcus luteus and Pseudomonas aeruginosa.
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Affiliation(s)
- Ali Keivanloo
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran.
| | - Saeed Lashkari
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
| | - Mohammad Bakherad
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
| | - Mahsa Fakharian
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
| | - Sima Abbaspour
- Faculty of Chemistry, Shahrood University of Technology, Shahrood, 36199-95161, Iran
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Keivanloo A, Fakharian M, Sepehri S. 1,2,3-Triazoles based 3-substituted 2-thioquinoxalines: Synthesis, anti-bacterial activities, and molecular docking studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127262] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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