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Zhao Q, Wang Y, Wang Y, Hu Q, Yao J, Wen Z, Li H. Control of Selectivity in FeCl 3 -Catalyzed Aerobic Oxidation of Cycloketones. Chem Asian J 2023; 18:e202201101. [PMID: 36519526 DOI: 10.1002/asia.202201101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
The FeCl3 -catalyzed aerobic oxidation of ketones always gives rise to the α-C-C cleavage product, having challenges to afford hydroxyl keto compounds. Here we report an effective control of the main product from keto acid to α-hydroxyl ketone, by reducing the concentration of FeCl3 catalyst, together with the use of DMSO as the solvent. In addition, mechanistic investigations suggested the same FeCl3 -coordinated peroxide intermediate for both hydroxylation and C-C cleavage routes, and emphasize the role of DMSO as both ligand and reductant. This work provides a new approach for selective aerobic oxidation under Lewis acid catalysis.
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Affiliation(s)
- Qi Zhao
- Department of Chemistry and ZJU-NHU United R&D Center, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
| | - Yongtao Wang
- Department of Chemistry and ZJU-NHU United R&D Center, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
- Center of Chemistry for Frontier Technologies, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
| | - Yu Wang
- Department of Chemistry and ZJU-NHU United R&D Center, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
| | - Qixuan Hu
- Department of Chemistry and ZJU-NHU United R&D Center, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
| | - Jia Yao
- Department of Chemistry and ZJU-NHU United R&D Center, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
| | - Zeyu Wen
- Department of Chemistry and ZJU-NHU United R&D Center, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
| | - Haoran Li
- Department of Chemistry and ZJU-NHU United R&D Center, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
- State Key Laboratory of Chemical Engineering and College of Chemical and Biological Engineering, Zhejiang University, Zhe Da Rd. 38, Hangzhou, 310027, P. R. China
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Ji DW, Hu YC, Min XT, Liu H, Zhang WS, Li Y, Zhou YJ, Chen QA. Skeleton-Reorganizing Coupling Reactions of Cycloheptatriene and Cycloalkenones with Amines. Angew Chem Int Ed Engl 2023; 62:e202213074. [PMID: 36372782 DOI: 10.1002/anie.202213074] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Indexed: 11/15/2022]
Abstract
Skeletal reorganization reactions have emerged as an intriguing tool for converting readily available compounds into complicated molecules inaccessible by traditional methods. Herein, we report a unique skeleton-reorganizing coupling reaction of cycloheptatriene and cycloalkenones with amines. In the presence of Rh/acid catalysis, cycloheptatriene can selectively couple with anilines to deliver fused 1,2-dihydroquinoline products. Mechanistic studies indicate that the retro-Mannich type ring-opening and subsequent intramolecular Povarov reaction account for the ring reorganization. Our mechanistic studies also revealed that skeleton-reorganizing amination between anilines and cycloalkenones can be achieved with acid. The synthetic utilization of this skeleton-reorganizing coupling reaction was showcased with a gram-scale reaction, synthetic derivatizations, and the late-stage modification of commercial drugs.
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Affiliation(s)
- Ding-Wei Ji
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiang-Ting Min
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Heng Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei-Song Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongjin J Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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3
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Liang Q, Zheng J, Lu S, Wang H, Luo L, Zhang X, Peng J, Feng N, Ma A. Intramolecular Aerobic Ring Expansion of Cyclic Ketone: A Mild Method for the Synthesis of Medium‐Sized Lactones and Macrolactones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qi‐Ming Liang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Jing‐Yun Zheng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Si‐Yuan Lu
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Hong‐Mei Wang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Lu Luo
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Xiang‐Zhi Zhang
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Jin‐Bao Peng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Na Feng
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
| | - Ai‐Jun Ma
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 People's Republic of China
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Abderrazak Y, Bhattacharyya A, Reiser O. Durch sichtbares Licht induzierte Homolyse unedler, gut verfügbarer Metallsubstratkomplexe: Eine komplementäre Aktivierungsstrategie in der Photoredoxkatalyse. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Youssef Abderrazak
- Institut für Organische Chemie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
| | - Aditya Bhattacharyya
- Institut für Organische Chemie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
| | - Oliver Reiser
- Institut für Organische Chemie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
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Abderrazak Y, Bhattacharyya A, Reiser O. Visible-Light-Induced Homolysis of Earth-Abundant Metal-Substrate Complexes: A Complementary Activation Strategy in Photoredox Catalysis. Angew Chem Int Ed Engl 2021; 60:21100-21115. [PMID: 33599363 PMCID: PMC8519011 DOI: 10.1002/anie.202100270] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/17/2021] [Indexed: 01/16/2023]
Abstract
The mainstream applications of visible-light photoredox catalysis predominately involve outer-sphere single-electron transfer (SET) or energy transfer (EnT) processes of precious metal RuII or IrIII complexes or of organic dyes with low photostability. Earth-abundant metal-based Mn Ln -type (M=metal, Ln =polydentate ligands) complexes are rapidly evolving as alternative photocatalysts as they offer not only economic and ecological advantages but also access to the complementary inner-sphere mechanistic modes, thereby transcending their inherent limitations of ultrashort excited-state lifetimes for use as effective photocatalysts. The generic process, termed visible-light-induced homolysis (VLIH), entails the formation of suitable light-absorbing ligated metal-substrate complexes (Mn Ln -Z; Z=substrate) that can undergo homolytic cleavage to generate Mn-1 Ln and Z. for further transformations.
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Affiliation(s)
- Youssef Abderrazak
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Aditya Bhattacharyya
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Oliver Reiser
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
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