1
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Intelli AJ, Wayment CZ, Lee RT, Yuan K, Altman RA. Palladium and copper co-catalyzed chloro-arylation of gem-difluorostyrenes - use of a nitrite additive to suppress β-F elimination. Chem Sci 2024:d4sc04939j. [PMID: 39386912 PMCID: PMC11456958 DOI: 10.1039/d4sc04939j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Accepted: 09/28/2024] [Indexed: 10/12/2024] Open
Abstract
The installation of fluorine and fluorinated functional groups in organic molecules perturbs the physicochemical properties of those molecules and enables the development of new therapeutics, agrichemicals, biological probes and materials. However, current synthetic methodologies cannot access some fluorinated functional groups and fluorinated scaffolds. One such group, the gem-difluorobenzyl motif, might be convergently synthesized by reacting a nucleophilic aryl precursor and an electrophilic gem-difluoroalkene. Previous attempts have relied on forming unstable anionic or organometallic intermediates that rapidly decompose through a β-F elimination process to deliver monofluorovinyl products. In contrast, we report a fluorine-retentive palladium and copper co-catalyzed chloro-arylation of gem-difluorostyrenes that takes advantage of a nitrite (NO2 -) additive to avoid the favorable β-F elimination pathway that forms monofluorinated products, instead delivering difluorinated products.
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Affiliation(s)
- Andrew J Intelli
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette Indiana 47907 USA
| | - Coriantumr Z Wayment
- James Tarpo Jr and Margaret Tarpo Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
| | - Ryan T Lee
- Department of Chemistry and Chemical Biology, Rutgers University Piscataway New Jersey 08854 USA
| | - Kedong Yuan
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target Clinical Pharmacology, Guangzhou Medical University Guangzhou 511436 China
| | - Ryan A Altman
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University West Lafayette Indiana 47907 USA
- James Tarpo Jr and Margaret Tarpo Department of Chemistry, Purdue University West Lafayette Indiana 47907 USA
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2
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Han X, Liu X, Len C, Liu L, Wang D, Zhang Y, Duan XH, Hu M. Photoredox-Catalyzed gem-Difluoromethylenation of Aliphatic Alcohols with 1,1-Difluoroalkenes to Access α,α-Difluoromethylene Ethers. J Org Chem 2023; 88:12744-12754. [PMID: 37610918 DOI: 10.1021/acs.joc.3c01428] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
A switchable synthesis of alcohols and ketones bearing a CF2-OR scaffold using visible-light promotion is described. The method of PDI catalysis is characterized by its ease of operation, broad substrate scopes, and the ability to switch between desired products without the need for transition metal catalysts. The addition or absence of a base plays a key role in controlling the synthesis of the major desired products.
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Affiliation(s)
- Xinxin Han
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin Liu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
| | - Christophe Len
- CNRS, Institute of Chemistry for Life and Health Sciences, Chimie ParisTech, PSL University, 11 rue Pierre et Marie Curie, F-75005 Paris, France
- Université de Technologie de Compiègne, Sorbonne Université, F-60203 Compiègne, France
| | - Le Liu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
| | - Dongdong Wang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yinbin Zhang
- Department of Oncology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
| | - Mingyou Hu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
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3
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Herrick RM, Abd El-Gaber MK, Coy G, Altman RA. A diselenide additive enables photocatalytic hydroalkoxylation of gem-difluoroalkenes. Chem Commun (Camb) 2023; 59:5623-5626. [PMID: 37082905 PMCID: PMC10164105 DOI: 10.1039/d3cc01012k] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
A photocatalytic hydroalkoxylation reaction enables the coupling of aliphatic alcohols with gem-difluoroalkenes, expanding the scope of accessible α,α-difluorinated ethers, a desirable substructure for medicinal and agricultural chemists. This reaction exploits an uncommon diselenide co-catalyst to facilitate the net hydrofunctionalization process, which contrasts alternate single-electron reactions that deliver dioxidation products. Future use of this co-catalyst might enable other currently unknown photocatalytic reactions.
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Affiliation(s)
- Ryan M Herrick
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47906, USA.
| | - Mohammed K Abd El-Gaber
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47906, USA.
- Medicinal Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Gabriela Coy
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47906, USA.
- Department of Pharmacy, Universidad Nacional de Colombia, Bogota 111321, Colombia
| | - Ryan A Altman
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, Indiana 47906, USA.
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47906, USA
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4
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Zhao YR, Ma ZY, Liu L, Gao P, Duan XH, Hu M. Synthesis of α-Difluoromethylene Ethers via Photoredox-Induced Hyperconjugative Ring Opening of gem-Difluorocyclopropanes. J Org Chem 2023; 88:3787-3793. [PMID: 36827360 DOI: 10.1021/acs.joc.2c03062] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Fluorinated compounds have found widespread applications in pharmaceuticals, agrochemicals, and materials science. Precise construction of α-difluoromethylene ether (CF2-O) moiety in organic molecules is of high demand. Herein, a visible light-promoted reaction protocol for the synthesis of α-difluoromethylene ether from gem-difluorocyclopropane is described. The key ring-opening step is induced by hyperconjugative interaction of cyclopropane with photo-oxidized aromatic rings. This reaction is easy scale-up, and the products bearing a synthetic handle enable their further manipulation.
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Affiliation(s)
- Yu-Rou Zhao
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhi-Yong Ma
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Le Liu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Pin Gao
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xin-Hua Duan
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China
| | - Mingyou Hu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, Xi'an Jiaotong University, Xi'an 710049, China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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5
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Wang J, Lu H, He Y, Jing C, Wei H. Cobalt-Catalyzed Nitrogen Atom Insertion in Arylcycloalkenes. J Am Chem Soc 2022; 144:22433-22439. [PMID: 36449714 DOI: 10.1021/jacs.2c10570] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Developing strategies enabling the modification of underlying molecular frameworks facilitates access to underexplored chemical spaces. Skeletal editing is an emerging technology for late-stage diversification of bioactive molecules. However, the current state of this knowledge remains undeveloped. This work describes a simple protocol that "inserts" a nitrogen atom into arylcycloalkenes to form the corresponding N-heterocycles. The use of an inexpensive cobalt catalyst under aqueous and open-air conditions makes this protocol very practical. Examples of late-stage modification of compounds of pharmaceutical interest and complex fused ring compounds further demonstrated the potentially broad applicability of this methodology.
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Affiliation(s)
- Juanjuan Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Yi He
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Chunxiu Jing
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, China
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6
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Koley S, Cayton KT, González-Montiel GA, Yadav MR, Orsi DL, Intelli AJ, Cheong PHY, Altman RA. Cu(II)-Catalyzed Unsymmetrical Dioxidation of gem-Difluoroalkenes to Generate α,α-Difluorinated-α-phenoxyketones. J Org Chem 2022; 87:10710-10725. [PMID: 35914193 PMCID: PMC9391295 DOI: 10.1021/acs.joc.2c00925] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Cu-based catalyst system convergently couples gem-difluoroalkenes with phenols under aerobic conditions to deliver α,α-difluorinated-α-phenoxyketones, an unstudied hybrid fluorinated functional group. Composed of α,α-difluorinated ketone and α,α-difluorinated ether moieties, these compounds have rarely been reported as a synthetic intermediate. Computational predictions and later experimental corroboration suggest that the phenoxy-substituted fluorinated ketone's sp3-hybridized hydrate form is energetically favored relative to the respective nonether variant and that perturbation of the electronic character of the ketone can further encourage the formation of the hydrate. The more facile conversion between ketone and hydrate forms suggests that analogues should readily covalently inhibit proteases and other enzymes. Further functionalization of the ketone group enables access to other useful fluorinated functional groups.
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Affiliation(s)
- Suvajit Koley
- Department of Medicinal Chemistry and Molecular Pharmacology; Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | - Kaylee T. Cayton
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, USA
| | | | - M. Ramu Yadav
- Department of Chemistry, MS-723, IIT Delhi, Hauz Khas, New Delhi, India 110016
| | - Douglas L. Orsi
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA
| | - Andrew J. Intelli
- Department of Medicinal Chemistry and Molecular Pharmacology; Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | - Paul Ha-Yeon Cheong
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, USA
| | - Ryan A. Altman
- Department of Medicinal Chemistry and Molecular Pharmacology; Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
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7
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Liang Y, Zhou N, Ma G, Wen L, Wu X, Feng P. Tunable alkoxy-nucleophilic addition under photochemical condition: Dioxidation of gem‑difluoroalkenes with O2. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Başaran E, Çakmak R, Şentürk M, Taskin-Tok T. Biological activity and molecular docking studies of some N-phenylsulfonamides against cholinesterases and carbonic anhydrase isoenzymes. J Mol Recognit 2022; 35:e2982. [PMID: 35842829 DOI: 10.1002/jmr.2982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/18/2022] [Accepted: 06/28/2022] [Indexed: 11/07/2022]
Abstract
In this research, a series of N-phenylsulfonamide derivatives (1-12) were designed, synthesized and investigated for their inhibitory potencies against carbonic anhydrase isoenzymes I, II and IX (hCA I, hCA II, and hCA IX) and cholinesterases (ChE), namely, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). These compounds, whose inhibition potentials were evaluated for the first time, were characterized by spectroscopic techniques (1 H- and 13 C NMR and FT-IR). CA isoenzyme inhibitors are significant therapeutic targets, especially owing to their preventive/activation potential in the therapy processes of some diseases such as cancer, osteoporosis, and glaucoma. On the other hand, Cholinesterase inhibitors are valuable molecules with biological importance that can be employed in the therapy process of Alzheimer's patients. The results showed that the tested molecules had enzyme inhibition activities ranging from 9.7 to 93.7 nM against these five metabolic enzymes. Among the tested molecules, the methoxy and the hydroxyl group-containing compounds 10, 11, and 12 exhibited more enzyme inhibition activities when compared to standard compounds acetazolamide (AAZ), sulfapyridine, and sulfadiazine for CA isoenzymes and neostigmine for ChE, respectively. Of these three molecules, compound 12, which had a hydroxyl group in the para position in the aromatic ring, was determined to be the most active molecule against all enzymes. In silico work, molecular docking has also shown similar results and consistent with the experimental data in the study. As a result, we can say that some of the tested molecules might be used as promising inhibitor candidates for further studies on this topic.
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Affiliation(s)
- Eyüp Başaran
- Department of Chemistry and Chemical Processing Technologies, Vocational School of Technical Sciences, Batman University, Batman, Turkey
| | - Reşit Çakmak
- Medical Laboratory Techniques Program, Vocational School of Health Services, Batman University, Batman, Turkey
| | - Murat Şentürk
- Department of Biochemistry, Pharmacy Faculty, Ağrı Ibrahim Çecen University, Ağrı, Turkey
| | - Tugba Taskin-Tok
- Gaziantep University, Faculty of Arts and Sciences, Department of Chemistry, Gaziantep, Turkey.,Gaziantep University, Institute of Health Sciences, Department of Bioinformatics and Computational Biology, Gaziantep, Turkey
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9
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Zheng Y, Yang QY, Wu LY, Zhu XY, Ge MJ, Yang H, Liu SY, Chen F. Oxoammonium Salt-Mediated Regioselective Vicinal Dioxidation of Alkenes: Relying on Transient and Persistent Nitroxides. Org Lett 2021; 23:8533-8538. [PMID: 34699225 DOI: 10.1021/acs.orglett.1c03196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A novel, easy-to-handle, and regioselective vicinal dioxidation of alkenes under transition metal and organic peroxide free conditions has been developed. This approach uses N-hydroxyphthalimide and its analogues as the transient nitroxyl-radical precursors and 2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate (TEMPO+BF4-) as the oxidant as well as the source of persistent nitroxide. By employing this method, multifarious structurally important dioxidation products were efficiently synthesized from simple alkenes and complex bioactive molecule derivatives.
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Affiliation(s)
- Yang Zheng
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Qing-Yun Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Lu-Yan Wu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Xin-Yue Zhu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Ming-Jing Ge
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Hao Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Shi-Yu Liu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
| | - Fei Chen
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, P. R. China
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10
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Sorrentino JP, Altman RA. Fluorine-Retentive Strategies for the Functionalization of gem-Difluoroalkenes. SYNTHESIS-STUTTGART 2021; 53:3935-3950. [PMID: 34707322 DOI: 10.1055/a-1547-9270] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
gem-Difluoroalkenes are readily available fluorinated building blocks, and the fluorine-induced electronic perturbations of the alkenes enables a wide array of selective functionalization reactions. However, many reactions of gem-difluoroalkenes result in a net C─F functionalization to generate monofluorovinyl products or addition of F to generate trifluoromethyl-containing products. In contrast, fluorine-retentive strategies for the functionalization of gem-difluoroalkenes remain less generally developed, and is now becoming a rapidly developing area. This review will present the development of fluorine-retentive strategies including electrophilic, nucleophilic, radical, and transition metal catalytic strategies with an emphasis on key physical organic and mechanistic aspects that enable reactivities.
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Affiliation(s)
- Jacob P Sorrentino
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Ryan A Altman
- Department of Medicinal Chemistry and Molecular Pharmacology and Department of Chemistry, Purdue University, West Lafayette, Indiana 47906, United States
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11
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Fuchibe K, Yamada A, Hachinohe K, Matsumoto K, Takayama R, Ichikawa J. Synthesis of Difluoroalkenes from Thiocarbonyl Compounds via Difluorothiiranes: Electrophilic Counterpart to Wittig-Type Difluoromethylidenation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Kohei Fuchibe
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Atsushi Yamada
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Kosei Hachinohe
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Kana Matsumoto
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Ryo Takayama
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Junji Ichikawa
- Division of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
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12
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Tang C, Qiu X, Cheng Z, Jiao N. Molecular oxygen-mediated oxygenation reactions involving radicals. Chem Soc Rev 2021; 50:8067-8101. [PMID: 34095935 DOI: 10.1039/d1cs00242b] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Molecular oxygen as a green, non-toxic and inexpensive oxidant has displayed lots of advantages compared with other oxidants towards more selective, sustainable, and environmentally benign organic transformations. The oxygenation reactions which employ molecular oxygen or ambient air as both an oxidant and an oxygen source provide an efficient route to the synthesis of oxygen-containing compounds, and have been demonstrated in practical applications such as pharmaceutical synthesis and late-stage functionalization of complex molecules. This review article introduces the recent advances of radical processes in molecular oxygen-mediated oxygenation reactions. Reaction scopes, limitations and mechanisms are discussed based on reaction types and catalytic systems. Conclusions and perspectives are also given in the end.
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Affiliation(s)
- Conghui Tang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China.
| | - Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China. and State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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13
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Zhang MZ, Tian J, Yuan M, Peng WQ, Wang YZ, Wang P, Liu L, Gou Q, Huang H, Chen T. Visible light-induced aerobic dioxygenation of α,β-unsaturated amides/alkenes toward selective synthesis of β-oxy alcohols using rose bengal as a photosensitizer. Org Chem Front 2021. [DOI: 10.1039/d1qo00149c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The first visible light-induced aerobic dioxygenation of alkenes for the selective synthesis of β-oxy alcohols was developed using non-toxic rose bengal as a photosensitizer.
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14
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Xu K, Xu Z, Zhang M, Yan X, Mao G, Wang T, Wu Y, Liu L. The aerobic oxidative hydroxysulfurization of gem-difluoroalkenes to produce α,α-difluoro-β-hydroxysulfides. Org Chem Front 2021. [DOI: 10.1039/d1qo00676b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The efficient aerobic oxidative hydroxysulfurization of gem-difluoroalkenes with aryl or even alkyl thiols to produce α,α-difluoro-β-hydroxysulfides has been developed.
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Affiliation(s)
- Kai Xu
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Zhenli Xu
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Mengzhen Zhang
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Xiaoxiao Yan
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Guoliang Mao
- College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Tao Wang
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | - Yangjie Wu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lantao Liu
- Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
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15
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Wu X, Ma G, Peng X, Ning Z, Lin Z, Chen X, Tang Y, Feng P. Photoredox initiated azole-nucleophilic addition: oxo-azolation of gem-difluoroalkenes. Org Chem Front 2021. [DOI: 10.1039/d1qo00701g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A protocol for photoredox initiated oxo-azolation of gem-difluoroalkenes has been demonstrated. The strategy offers a facile access to a series of synthetically useful azolated difluoroacetonarenes and tolerates a wide range of functional groups.
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Affiliation(s)
- Xing Wu
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Guojian Ma
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Xichao Peng
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Zuozhou Ning
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Zirun Lin
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Xiaoguang Chen
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Yu Tang
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Pengju Feng
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
- Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou, 510632, China
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