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Yan K, Liu M, Wen J, Wang S, Li J, Wang H. Synthesis of Substituted Naphtho[1,8-bc]thiopyrans by Sulfhydryl-Directed Rhodium-Catalyzed peri-Selective C–H Bond Activation and Cyclization of Naphthalene-1-thiols. Org Lett 2020; 22:7825-7830. [DOI: 10.1021/acs.orglett.0c02703] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kelu Yan
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Min Liu
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Jiangwei Wen
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Shao Wang
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Jing Li
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
| | - Hua Wang
- Institute of Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P. R. China
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Andrés Castán JM, Abad Galán L, Li S, Dalinot C, Simón Marqués P, Allain M, Risko C, Monnereau C, Maury O, Blanchard P, Cabanetos C. Nitration of benzothioxanthene: towards a new class of dyes with versatile photophysical properties. NEW J CHEM 2020. [DOI: 10.1039/c9nj05804d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The selective mono-nitration of benzothioxanthene (BTXI) is demonstrated here, opening doors to a wide range of structures and reactions. In addition, a new series of derivaties was characterized expanding the scope for electronic organic purposes.
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Affiliation(s)
| | | | - Shi Li
- Department of Chemistry & Center for Applied Energy Research
- University of Kentucky
- Lexington
- USA
| | - Clément Dalinot
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Pablo Simón Marqués
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Magali Allain
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Chad Risko
- Department of Chemistry & Center for Applied Energy Research
- University of Kentucky
- Lexington
- USA
| | | | | | - Philippe Blanchard
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
| | - Clément Cabanetos
- Laboratoire MOLTECH-Anjou
- UMR CNRS 6200
- UNIV Angers
- SFR MATRIX
- 49045 Angers Cedex
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3
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Yan K, Kong Y, Li B, Wang B. Sulfhydryl-Directed Iridium-Catalyzed C-H/Diazo Coupling and Tandem Annulation of Naphthalene-1-thiols. Org Lett 2019; 21:7000-7003. [PMID: 31436429 DOI: 10.1021/acs.orglett.9b02581] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The first sulfhydryl-directed iridium-catalyzed C-H/diazo coupling and tandem annulation of naphthalene-1-thiols has been developed. The framework of naphtho[1,8-bc]thiopyrans was constructed in a one-step reaction with good yields. This transformation provides a practical synthetic route for the widely used naphtho[1,8-bc]thiopyran derivatives.
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Affiliation(s)
- Kelu Yan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Yong Kong
- SINOPEC Research Institute of Petroleum Engineering, Beijing 100101, People's Republic of China
| | - Bin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Baiquan Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
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4
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Shigeno M, Nishii Y, Satoh T, Miura M. Rhodium-Catalyzed peri
-Selective Direct Alkenylation of 1-(Methylthio)naphthalene. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800212] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Masanori Shigeno
- Department of Applied Chemistry; Graduate School of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Yuji Nishii
- Frontier Research Base for Global Young Researchers; Graduate School of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Tetsuya Satoh
- Department of Chemistry, Graduate School of Science; Osaka City University; 3-3-138 Sugimoto Sumiyoshi-ku Osaka 558-8585 Japan
| | - Masahiro Miura
- Department of Applied Chemistry; Graduate School of Engineering; Osaka University; 2-1 Yamadaoka Suita Osaka 565-0871 Japan
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Mocanu S, Matei I, Ionescu S, Tecuceanu V, Marinescu G, Ionita P, Culita D, Leonties A, Ionita G. Complexation of β-cyclodextrin with dual molecular probes bearing fluorescent and paramagnetic moieties linked by short polyether chains. Phys Chem Chem Phys 2018; 19:27839-27847. [PMID: 28990616 DOI: 10.1039/c7cp05276f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Electron paramagnetic resonance (EPR) and fluorescence spectroscopies provide molecular-level insights on the interaction of paramagnetic and fluorescent species with the microenvironment. A series of dual molecular probes bearing fluorescent and paramagnetic moieties linked by flexible short polyether chains have been synthesized. These new molecular probes open the possibility to investigate various multi-component systems such as host-guest systems, polymeric micelles, gels and protein solutions by using EPR and fluorescence spectroscopies concertedly. The EPR and fluorescence spectra of these compounds show that the dependence of the rotational correlation time and fluorescence quantum yield on the chain length of the linker is not linear, due to the flexibility of the polyether linker. The quenching effect of the nitroxide moiety on the fluorescence intensity of the pyrene group varies with the linker length and flexibility. The interaction of these dual molecular probes with β-cyclodextrin, in solution and in polymeric gels, was evaluated and demonstrated by analysis of EPR and fluorescence spectra.
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Affiliation(s)
- S Mocanu
- "Ilie Murgulescu" Institute of Physical Chemistry of the Romanian Academy, 202 Splaiul Independentei, Bucharest 060021, Romania.
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Scholz N, Jadhav A, Shreykar M, Behnke T, Nirmalananthan N, Resch-Genger U, Sekar N. Coumarin-Rhodamine Hybrids—Novel Probes for the Optical Measurement of Viscosity and Polarity. J Fluoresc 2017; 27:1949-1956. [DOI: 10.1007/s10895-017-2165-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 08/10/2017] [Indexed: 01/10/2023]
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Chmela Š, Kollár J, Hrčková Ľ. Fluorescent dye-labeled TIPNO type regulator for nitroxide mediated reversible-deactivation radical polymerization. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2015.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mary YS, Panicker CY, Yamuna TS, Siddegowda MS, Yathirajan HS, Al-Saadi AA, Van Alsenoy C. Theoretical investigations on the molecular structure, vibrational spectral, HOMO-LUMO and NBO analysis of 9-[3-(Dimethylamino)propyl]-2-trifluoro-methyl-9H-thioxanthen-9-ol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 132:491-501. [PMID: 24892527 DOI: 10.1016/j.saa.2014.05.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 04/23/2014] [Accepted: 05/02/2014] [Indexed: 06/03/2023]
Abstract
The experimental FT-IR and FT-Raman spectra of 9-[3-(Dimethylamino)propyl]-2-trifluoro-methyl-9H-thioxanthen-9-ol have been recorded. Quantum chemical calculations of geometry and vibrational wavenumbers of 9-[3-(Dimethylamino)propyl]-2-trifluoro-methyl-9H-thioxanthen-9-ol are carried out theoretically. Four possible stable conformations of the title compound were determined. In terms of the conformational analysis, one of the most interesting structural features of the title compound is the intra molecular OH⋯N hydrogen bond. The barrier of planarity between the most stable and planar form is also predicted. The optimized geometrical parameters obtained by B3LYP method show a good agreement with XRD data. The difference between the observed and theoretical wavenumbers is very small. The complete assignments were performed on the basis of potential energy distribution of the vibrational modes calculated theoretically. The calculated HOMO and LUMO energies allow the calculation of atomic and molecular properties and they also showed that charge transfer occurs in the molecule. A detailed molecular picture of the title compound and its interactions were obtained from NBO analysis. As seen from the MEP map, negative potential regions are over the hydroxyl group and positive potential regions are over the methyl groups.
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Affiliation(s)
- Y Sheena Mary
- Department of Physics, Fatima Mata National College, Kollam, Kerala, India
| | - C Yohannan Panicker
- Department of Physics, TKM College of Arts and Science, Kollam, Kerala, India.
| | - T S Yamuna
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India
| | - M S Siddegowda
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India
| | - H S Yathirajan
- Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India
| | - Abdulaziz A Al-Saadi
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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