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Zhao Q, Zhang R, Döbber J, Gulder T. Chemoenzymatic C,C-Bond Forming Cascades by Cryptic Vanadium Haloperoxidase Catalyzed Bromination. Org Lett 2025; 27:159-164. [PMID: 39741038 PMCID: PMC11731374 DOI: 10.1021/acs.orglett.4c04108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2024] [Revised: 12/17/2024] [Accepted: 12/20/2024] [Indexed: 01/02/2025]
Abstract
Inspired by natural cryptic halogenation in C,C-bond formation, this study developed a synthetic approach combining biocatalytic bromination with transition-metal-catalyzed cross-coupling. Using the cyanobacterial AmVHPO, a robust and sustainable bromination-arylation cascade was created. Genetic modifications allowed enzyme immobilization, enhancing the compatibility between biocatalysis and chemocatalysis. This mild, efficient method for synthesizing biaryl compounds provides a foundation for future biochemo cascade reactions harnessing halogenation as a traceless directing tool.
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Affiliation(s)
- Qingqi Zhao
- Biomimetic
Catalysis, Catalysis Research Center, TUM School of Natural Sciences, Technical University of Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Ru Zhang
- Institute
of Organic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
- Organic
Chemistry−Biomimetic Catalysis, Saarland
University, 66123 Saarbruecken, Germany
| | - Johannes Döbber
- Forschungszentrum
Jülich GmbH, IBG-1: Biotechnology, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Tanja Gulder
- Biomimetic
Catalysis, Catalysis Research Center, TUM School of Natural Sciences, Technical University of Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
- Institute
of Organic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
- Organic
Chemistry−Biomimetic Catalysis, Saarland
University, 66123 Saarbruecken, Germany
- Synthesis
of Natural-Product Derived Drugs, Helmholtz
Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Centre
for Infection Research (HZI), 66123 Saarbruecken, Germany
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Zhao G, Dong H, Xue K, Lou S, Qi R, Zhang X, Cao Z, Qin Q, Yi B, Lei H, Tong R. Nonheme iron catalyst mimics heme-dependent haloperoxidase for efficient bromination and oxidation. SCIENCE ADVANCES 2024; 10:eadq0028. [PMID: 39630909 PMCID: PMC11616719 DOI: 10.1126/sciadv.adq0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 10/29/2024] [Indexed: 12/07/2024]
Abstract
The [Fe]/H2O2 oxidation system has found wide applications in chemistry and biology. Halogenation with this [Fe]/H2O2 oxidation protocol and halide (X-) in the biological system is well established with the identification of heme-iron-dependent haloperoxidases. However, mimicking such halogenation process is rarely explored for practical use in organic synthesis. Here, we report the development of a nonheme iron catalyst that mimics the heme-iron-dependent haloperoxidases to catalyze the generation of HOBr from H2O2/Br- with high efficiency. We discovered that a tridentate terpyridine (TPY) ligand designed for Fenton chemistry was optimal for FeBr3 to form a stable nonheme iron catalyst [Fe(TPY)Br3], which catalyzed arene bromination, Hunsdiecker-type decarboxylative bromination, bromolactonization, and oxidation of sulfides and thiols. Mechanistic studies revealed that Fenton chemistry ([Fe]/H2O2) might operate to generate hydroxyl radical (HO•), which oxidize bromide ion [Br-] into reactive HOBr. This nonheme iron catalyst represents a biomimetic model for heme-iron-dependent haloperoxidases with potential applications in organic synthesis, drug discovery, and biology.
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Affiliation(s)
- Guodong Zhao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
- Engineering Research Center for Pharmaceutics of Chinese Materia Medica and New Drug Development, Ministry of Education, Beijing, 100029, China
| | - Huiling Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Kang Xue
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Shaoyan Lou
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Rui Qi
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Xiaohui Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhuo Cao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Qi Qin
- Department of Neurology and Innovation center for neurological disorders, Xuanwu Hospital, Capital Medical University, Beijing, 100029, China
| | - Bingqing Yi
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Haimin Lei
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Rongbiao Tong
- Department of Chemistry, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong, China
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Hill RA, Sutherland A. Hot off the press. Nat Prod Rep 2024; 41:157-161. [PMID: 38318713 DOI: 10.1039/d4np90005g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as dcalycinumine A from Daphniphyllum calycinum.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow G12 8QQ, UK.
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