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Zanetti D, Matuszewska O, Giorgianni G, Pezzetta C, Demitri N, Bonifazi D. Photoredox Annulation of Polycyclic Aromatic Hydrocarbons. JACS AU 2023; 3:3045-3054. [PMID: 38034957 PMCID: PMC10685425 DOI: 10.1021/jacsau.3c00438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 12/02/2023]
Abstract
The rise of interest in using polycyclic aromatic hydrocarbons (PAHs) and molecular graphenoids in optoelectronics has recently stimulated the growth of modern synthetic methodologies giving access to intramolecular aryl-aryl couplings. Here, we show that a radical-based annulation protocol allows expansion of the planarization approaches to prepare functionalized molecular graphenoids. The enabler of this reaction is peri-xanthenoxanthene, the photocatalyst which undergoes photoinduced single electron transfer with an ortho-oligoarylenyl precursor bearing electron-withdrawing and nucleofuge groups. Dissociative electron transfer enables the formation of persistent aryl radical intermediates, the latter undergoing intramolecular C-C bond formation, allowing the planarization reaction to occur. The reaction conditions are mild and compatible with various electron-withdrawing and -donating substituents on the aryl rings as well as heterocycles and PAHs. The method could be applied to induce double annulation reactions, allowing the synthesis of π-extended scaffolds with different edge peripheries.
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Affiliation(s)
- Davide Zanetti
- Institute
of Organic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Oliwia Matuszewska
- School
of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
| | - Giuliana Giorgianni
- Institute
of Organic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Cristofer Pezzetta
- School
of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
| | - Nicola Demitri
- Elettra—Sincrotrone
Trieste, S.S. 14 Km 163.5
in Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Davide Bonifazi
- Institute
of Organic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
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Jia F, Sang T, He J, Liu Y, Liu J, Ma X, Liu P. K2S2O8-promoted C3-thiocyanation of pyrazole [1,5-a] pyrimidine-7-amines. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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3
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Copper-promoted C1−H amination of pyrrolo[1,2-a]quinoxaline with N‑fluorobenzenesulfonimide. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Pandey MK, Sonawane SC, Mondal D, Kote BS, Balakrishna MS. Palladium(II) Complexes of (2,6‐Dibenzhydryl‐4‐methylphenyl)diphenyl‐phosphane: Synthesis, Structural Studies, and Catalytic Arylation of Imidazoles Under Aerobic Conditions. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Madhusudan K. Pandey
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Sachin C. Sonawane
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Dipanjan Mondal
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Basvaraj S. Kote
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Maravanji S. Balakrishna
- Phosphorus Laboratory Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
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Le HX, Nguyen TT. Recent Examples in the Synthesis and Functionalization of C−H Bonds in Pyrrolo/Indolo [1,2‐
a
]Quinoxalines. ChemistrySelect 2022. [DOI: 10.1002/slct.202200166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huy X. Le
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
| | - Tung T. Nguyen
- Faculty of Chemical Engineering Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
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Ca TT, Le KTM, Phan SNT, Nguyen HH, Le HX, Phan NTS, Nguyen TT. Copper-promoted direct sulfenylation of C1–H bonds in 4-aryl pyrrolo[1,2- a]quinoxalines. RSC Adv 2022; 12:34831-34836. [DOI: 10.1039/d2ra05078a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Direct sulfenylation of pyrrolo[1,2-a]quinoxalines with diaryl disulfides was reported for the first time. A wide range of functionalities was compatible with reaction conditions.
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Affiliation(s)
- Thuy T. Ca
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
- Faculty of Basic Sciences, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Khanh T. M. Le
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Son N. T. Phan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Huy H. Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Huy X. Le
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Nam T. S. Phan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Tung T. Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
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