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Engineering single-...
Engineering single-atom active sites anchored covalent organic frameworks for efficient metallaphotoredox C-N cross-coupling reactions
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- Li, Zhuwei (författare)
- Dalian Univ Technol, Frontiers Sci Ctr Smart Mat Oriented Chem Engn, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Qiu, Shi (författare)
- Dalian Univ Technol, Frontiers Sci Ctr Smart Mat Oriented Chem Engn, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Song, Yurou (författare)
- Dalian Univ Technol, Frontiers Sci Ctr Smart Mat Oriented Chem Engn, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Huang, Shiyu (författare)
- Dalian Univ Technol, Frontiers Sci Ctr Smart Mat Oriented Chem Engn, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Gao, Junfeng (författare)
- Dalian Univ Technol, Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China.
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- Sun, Licheng, 1962- (författare)
- KTH,Organisk kemi,Westlake Univ, Ctr Artificial Photosynth Solar Fuels, Sch Sci, Hangzhou 310024, Peoples R China.;Westlake Univ, Sch Sci, Dept Chem, Hangzhou 310024, Peoples R China.
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- Hou, Jungang (författare)
- Dalian Univ Technol, Frontiers Sci Ctr Smart Mat Oriented Chem Engn, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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Dalian Univ Technol, Frontiers Sci Ctr Smart Mat Oriented Chem Engn, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China Dalian Univ Technol, Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China. (creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
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Ingår i: Science Bulletin. - : Elsevier BV. - 2095-9273. ; 67:19, s. 1971-1981
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Photoredox catalysis has become an indispensable solution for the synthesis of small organic molecules. However, the precise construction of single-atomic active sites not only determines the catalytic performance, but also avails the understanding of structure-activity relationship. Herein, we develop a facile approach to immobilize single-atom Ni sites anchored porous covalent organic framework (COF) by use of 4,40,400-(1,3,5-triazine-2,4,6-triyl)trianiline and 2,6-diformylpyridine (Ni SAS/TD-COF). Ni SAS/TDCOF catalyst achieves excellent catalytic performance in visible-light-driven catalytic carbon-nitrogen cross-coupling reaction between aryl bromides and amines under mild conditions. The reaction provides amine products in excellent yields (71%-97%) with a wide range of substrates, including aryl and heteroaryl bromides with electron-deficient, electron-rich and neutral groups. Notably, Ni SAS/TD-COF could be recovered from the reaction mixture, corresponding to the negligible loss of photoredox performance after several cycles. This work provides a promising opportunity upon rational design of single-atomic active sites on COFs and the fundamental insight of photoredox mechanism for sustainable organic transformation.
Ämnesord
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Nyckelord
- Single-atom active sites
- Covalent organic frameworks
- Photocatalysis
- C-N cross-coupling reaction
- Heterogeneous catalyst
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