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Skibinska M, Warowicka A, Koroniak H, Cytlak T, Crousse B. Synthesis, Reactivity, and Antibacterial Activity of gem-Difluoroalkene, Difluoromethyl, and Trifluoromethyl β-Lactams. Org Lett 2024; 26:692-696. [PMID: 38227548 PMCID: PMC10825868 DOI: 10.1021/acs.orglett.3c04094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/17/2024]
Abstract
New gem-difluoroalkenes were synthesized by the dehydrofluorination of the corresponding 4-CF3-β-lactams. An unexpected rearrangement mechanism of the ester moiety dependent on a stabilizing negative charge was observed. Hydrogenation to 4-CHF2-β-lactams was successful from gem-difluoro-β-lactams.
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Affiliation(s)
- Monika Skibinska
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Alicja Warowicka
- Faculty
of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego
6, 61-614 Poznań, Poland
| | - Henryk Koroniak
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Tomasz Cytlak
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
- Centre
for Advanced Technologies, Adam Mickiewicz
University, Uniwersytetu
Poznańskiego 10, 61-614 Poznań, Poland
| | - Benoît Crousse
- BioCIS
UMR 8076 CNRS, Building Henri Moissan, Université
Paris-Saclay, 17 avenue
des sciences, 91400 Orsay, France
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2
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Zelentsova MV, Sandulenko IV, Ambartsumyan AA, Danshina AA, Moiseev SK. C(21)-Di- and monofluorinated scaffold for thevinol/orvinol-based opioid receptor ligands. Org Biomol Chem 2023; 21:9091-9100. [PMID: 37947030 DOI: 10.1039/d3ob01577g] [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: 11/12/2023]
Abstract
Defluorination of the readily available 21,21,21-trifluorothevinone (7) with Mg + Me3SiCl allows the preparation of 21,21-difluorothevinone (10) and 21-fluorothevinone (11), which can be used as the starting compounds for syntheses of 21,21-difluoro- and 21-fluoro-substituted relatives of thevinols and orvinols. Taken together, thevinols and orvinols are well known to constitute a family of the highly potent 4,5α-epoxy-18,19-endo-(etheno/ethano)morphinan-type opioid receptor ligands. Alternatively, 10 and 18,19-dihydro-21,21-difluorothevinone (13) have been synthesized by the addition of Me3SiCHF2 to the carbonyl function of thevinal (12) and dihydrothevinal (18) followed by oxidation of the intermediate C(21)-difluorinated secondary alcohols. 21,21-Difluorothevinols were obtained both by the addition of RMgX or RLi to the 21,21-difluoroketones and by the addition of Me3SiCHF2 to the carbonyl function of the non-fluorinated 18,19-endo-(etheno/ethano)morphinan ketones. In general, these addition reactions have been shown to result in mixtures of the C(21)-epimeric alcohols. However, in some cases, the reactions proceeded with high stereoselectivity allowing the isolation of one of the epimeric alcohols by conventional crystallization. Preparations of the 21,21-difluorothevinols bearing an allyl, cyclopropylmethyl, or cyclobutylmethyl group at the N(17) nitrogen are also reported.
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Affiliation(s)
- Maria V Zelentsova
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova, 28, bld. 1, Moscow, 119334, Russia.
| | - Irina V Sandulenko
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova, 28, bld. 1, Moscow, 119334, Russia.
| | - Asmik A Ambartsumyan
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova, 28, bld. 1, Moscow, 119334, Russia.
| | - Anastasia A Danshina
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova, 28, bld. 1, Moscow, 119334, Russia.
- Moscow Institute of Physics and Technology (National Research University), Institutskiy per., 9, Dolgoprudny, Moscow Region, 141700, Russia
| | - Sergey K Moiseev
- A.N.Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova, 28, bld. 1, Moscow, 119334, Russia.
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3
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Zhao YS, Gu YQ, Zhang DD, Ruan MF, Liu GK. Visible-Light Photoredox-Catalyzed Three-Component Reaction of Carbazoles with Alkenes and S-(Difluoromethyl)sulfonium Salt: A Practical Approach to Access Difluoroalkyl-Functionalized Carbazoles. J Org Chem 2023. [PMID: 37465956 DOI: 10.1021/acs.joc.3c00773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
A mild and elegant multicomponent protocol for construction of CF2H-containing carbazoles was accomplished by visible-light photoredox catalysis with formation of two new C-C bonds in a single step to deliver a wide variety of structurally diverse difluoroalkylated carbazoles in moderate to good yields, featuring mild reaction conditions, synthetic simplicity, broad substrates, and good functional group tolerance.
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Affiliation(s)
- Ya-Shi Zhao
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China
| | - Yuan-Qing Gu
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China
| | - Dan-Dan Zhang
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China
| | - Mei-Feng Ruan
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China
| | - Guo-Kai Liu
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Shenzhen 518055, China
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4
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Su Q, Gao H, Qin G, Jiang Y, Xiao T. Controlled Synthesis of α-CF 2H or α-CF 2Cl Styrenes from the Same Precursors: Dehydrazinative Hydrogenation or Chlorination of 3,3-Difluoroallyl Hydrazines. J Org Chem 2023. [PMID: 37262306 DOI: 10.1021/acs.joc.3c00355] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
By carefully choosing the reaction conditions, we have developed the controllable FeCl3- or CuCl2-mediated dehydrazinative hydrogenation or chlorination of 3,3-difluoroallyl hydrazines to access α-CF2H or α-CF2Cl styrenes. The current reaction provides for the first time a facile method for the direct and selective synthesis of α-CF2H and α-CF2Cl styrenes starting from the same precursors, which is easy to scale up and displays a broad substrate scope and good functional group tolerance. Moreover, product derivatization experiments demonstrated that the resulting α-CF2Cl styrenes are practical and versatile building blocks for the diversified synthesis of fluorinated molecules.
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Affiliation(s)
- Qinshuang Su
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Haotian Gao
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Guiping Qin
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Yubo Jiang
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
| | - Tiebo Xiao
- Faculty of Science, Kunming University of Science and Technology, Jingming South Road 727, Chenggong District, Kunming, Yunnan 650500, P. R. China
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5
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Zhao YS, Huang SJ, Gu YQ, Liu GK. Visible-light photoredox-catalyzed radical aryldifluoromethylation of N-arylacrylamides with S-(difluoromethyl)sulfonium salt. Org Biomol Chem 2023; 21:4013-4017. [PMID: 37128753 DOI: 10.1039/d3ob00488k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A facile and highly efficient visible-light photoredox-catalyzed protocol for aryldifluoromethylation of acrylamides was developed using S-(difluoromethyl)sulfonium salt as the difluoromethyl source. With this method, pharmaceutically interesting CF2H-containing oxindoles were readily accessed from N-arylacrylamides, and this method featured mild reaction conditions, a broad scope of substrates, good tolerance of functional groups, and good to excellent yields. Control experiments revealed that this protocol proceeded through a difluoromethylation/cyclization cascade process.
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Affiliation(s)
- Ya-Shi Zhao
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China.
| | - Sheng-Jie Huang
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China.
| | - Yuan-Qing Gu
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China.
| | - Guo-Kai Liu
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen University, 1066 Xueyuan Avenue, Nanshan District, Shenzhen 518055, China.
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6
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Yang J, Gui J, Mu M, Liu S, Li J, Ren J, Wang Z. Synthesis of Difluoromethylated Carbinols via a HFIP-Promoted Hydroxydifluoromethylation of Aniline, Indole, and Pyrrole Derivatives with Difluoroacetaldehyde Ethyl Hemiacetal. J Org Chem 2023; 88:4790-4798. [PMID: 36989386 DOI: 10.1021/acs.joc.2c02812] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
A hexafluoroisopropanol (HFIP)-promoted hydroxydifluoromethylation of aniline, indole, and pyrrole derivatives with difluoroacetaldehyde ethyl hemiacetal has been developed. This protocol provides a facile and straightforward approach to access diverse difluoromethylated carbinols in good to excellent yields under mild conditions. Furthermore, gram-scale and synthetic derivatization experiments have also been demonstrated.
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Affiliation(s)
- Jianguo Yang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P.R. China
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, P.R. China
| | - Jing Gui
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P.R. China
| | - Miaomiao Mu
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P.R. China
| | - Saimei Liu
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, P.R. China
| | - Jinshan Li
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P.R. China
| | - Jun Ren
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, P.R. China
| | - Zhiming Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang, Zhejiang 318000, P.R. China
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7
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Wang XY, Yang M, Zhou Y, Zhou J, Hao YJ. A highly efficient metal-free selective 1,4-addition of difluoroenoxysilanes to chromones. Org Biomol Chem 2023; 21:1033-1037. [PMID: 36625240 DOI: 10.1039/d2ob02152h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A highly efficient metal-free selective 1,4-addition reaction of difluoroenoxysilanes to chromones was developed using the low-cost and readily available HOTf as the catalyst, which is a facile and straightforward method to access valuable C2-difluoroalkylated chroman-4-one derivatives. Interestingly, the products could be readily converted to the difluorinated bioisostere of the natural product (S)-2,6-dimethylchroman-4-one and a difluorinated benzo-seven-membered heterocycle via the Schmidt rearrangement reaction. In addition, the in vitro anti-proliferative activities of these synthesized derivatives against human colon carcinoma cells (HCT116) revealed that compound 3g exhibited potent inhibitory effect on HCT116 cancer cells with an IC50 value of 6.37 μM, representing a novel lead compound for further structural optimization and biological evaluation.
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Affiliation(s)
- Xi-Yu Wang
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Min Yang
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Ying Zhou
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China. .,School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
| | - Yong-Jia Hao
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China.
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8
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Facile Entry to Pharmaceutically Important 3-Difluoromethyl-quinoxalin-2-ones Enabled by Visible-Light-Driven Difluoromethylation of Quinoxalin-2-ones. Pharmaceuticals (Basel) 2022; 15:ph15121552. [PMID: 36559003 PMCID: PMC9781376 DOI: 10.3390/ph15121552] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/29/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
CF2H moiety has a significant potential utility in drug design and discovery, and the incorporation of CF2H into biologically active molecules represents an important and efficient strategy for seeking lead compounds and drug candidates. On the other hand, quinoxalin-2-one is of great interest to pharmaceutical chemists as a common skeleton frequently occurring in plenty of natural products and bioactive compounds. Herein, we reported a practical and efficient protocol for the synthesis of 3-CF2H-quinoxalin-2-ones. Thus, in the presence of 3 mol% of photocatalyst and S-(difluoromethyl)sulfonium salt as difluoromethyl radical sources, a wide range of quinoxalin-2-ones readily underwent a visible-light redox-catalyzed difluoromethylation reaction, to deliver structurally diverse 3-difluoromethyl-quinoxalin-2-ones. We believe that this would facilitate increasing chances and possibilities for seeking potential lead compounds and drug candidates and further boost the development of fluorine-containing pharmaceuticals.
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9
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Wang X, Pan S, Luo Q, Wang Q, Ni C, Hu J. Controllable Single and Double Difluoromethylene Insertions into C-Cu Bonds: Copper-Mediated Tetrafluoroethylation and Hexafluoropropylation of Aryl Iodides with TMSCF 2H and TMSCF 2Br. J Am Chem Soc 2022; 144:12202-12211. [PMID: 35786906 DOI: 10.1021/jacs.2c03104] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The selective difluoromethylene insertion into a C-Cu bond is a challenging task and is currently limited to either a single CF2 insertion into CuCF3 or double CF2 insertions into CuC6F5 (or (Z)-CF3CF = CFCu). Achieving both selective single and double CF2 insertions into the same C-Cu bond is even more difficult. Herein, highly controllable single and double CF2 insertions into CuCF2H species with a TMSCF2Br reagent have been described, affording two previously unknown fluoroalkylcopper species "Cu(CF2)nCF2H" (n = 1 and 2) independently under different reaction conditions. This work represents the first example of both single and double CF2 insertions into the same C-Cu bond in a highly selective manner. The synthetic value of the obtained "Cu(CF2)nCF2H" (n = 1 and 2) species is demonstrated by their reactions with aryl iodides, halogenation agents, and cinnamyl chloride, which enables the direct transfer of HCF2CF2 and HCF2CF2CF2 moieties into organic molecules. The key to controllable fluorocarbon chain elongation from C1 to C2 and from C1 to C3 is presumably attributed to the different reactivities of "Cu(CF2)nCF2H" species (n = 0, 1, 2 and 3) and the loading of the TMSCF2Br reagent.
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Affiliation(s)
- Xiu Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Shitao Pan
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Qinyu Luo
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Qian Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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10
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Nobile E, Hébert JP, Castanheiro T, Ledoux A, Besset T. Cost-Efficient, Multigram Scalable Synthesis of Shelf-Stable Electrophilic (Phenylsulfonyl)difluoromethylating Reagents. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Enzo Nobile
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), Rouen 76000, France
| | - Jean-Pierre Hébert
- Normandie Univ, INSA Rouen, LSPC, Saint Etienne du Rouvray 76801, France
| | - Thomas Castanheiro
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), Rouen 76000, France
| | - Alain Ledoux
- Normandie Univ, INSA Rouen, LSPC, Saint Etienne du Rouvray 76801, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), Rouen 76000, France
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11
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Xiong W, Qin WB, Zhao YS, Fu KZ, Liu GK. Direct C(sp3)−H Difluoromethylation via Radical-Radical Cross-Coupling by Visible-Light Photoredox Catalysis. Org Chem Front 2022. [DOI: 10.1039/d2qo00192f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, the radical-radical cross-coupling strategy for direct difluoromethylation of C(sp3)−H bond is reported. This transformation was readily accomplished under transition metal-free photoredox catalysis in the presence of 3 mol% of...
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12
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Nobile E, Castanheiro T, Besset T. C-H Electrophilic (phenylsulfonyl)difluoromethylation of (hetero)arenes with a newly designed reagent. Chem Commun (Camb) 2021; 57:12337-12340. [PMID: 34747423 PMCID: PMC8603193 DOI: 10.1039/d1cc04737j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 09/20/2021] [Indexed: 02/01/2023]
Abstract
The synthesis of an original electrophilic difluoromethylating reagent was successfully achieved upon a straightforward protocol (3 steps). Like a Swiss army knife, this bench-stable reagent allowed the functionalization of various classes of compounds under mild and transition metal-free conditions. Hence, an efficient and operationally simple tool for the construction of C(sp2)-, C(sp3)- and S-CF2SO2Ph bonds was provided, expanding the chemical space of PhSO2CF2-containing molecules. Late-stage functionalization of bioactive molecules and the synthesis of PhSO2CF2- and HCF2-analogs of Lidocaine were also successfully achieved.
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Affiliation(s)
- Enzo Nobile
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | - Thomas Castanheiro
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France.
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13
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Wang X, Ye W, Kong T, Wang C, Ni C, Hu J. Divergent S- and C-Difluoromethylation of 2-Substituted Benzothiazoles. Org Lett 2021; 23:8554-8558. [PMID: 34669403 DOI: 10.1021/acs.orglett.1c03267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Two unprecedented and complementary synthetic strategies for S- and C-difluoromethylation of 2-substituted benzothiazoles have been developed by taking advantage of the remarkably different reactivity of CF2H- and 2-PySO2CF2- nucleophiles. A variety of structurally diverse difluoromethyl 2-isocyanophenyl sulfides and 2-difluoromethylated benzothiazoles were synthesized with these two new synthetic protocols.
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Affiliation(s)
- Xiu Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Wenchao Ye
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Taige Kong
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chenlu Wang
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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14
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Cai A, Yan W, Zeng X, Zacate SB, Chao TH, Krause JA, Cheng MJ, Liu W. Copper-catalyzed carbo-difluoromethylation of alkenes via radical relay. Nat Commun 2021; 12:3272. [PMID: 34075051 PMCID: PMC8169770 DOI: 10.1038/s41467-021-23590-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 05/04/2021] [Indexed: 11/08/2022] Open
Abstract
Organic molecules that contain alkyl-difluoromethyl moieties have received increased attention in medicinal chemistry, but their synthesis in a modular and late-stage fashion remains challenging. We report herein an efficient copper-catalyzed radical relay approach for the carbo-difluoromethylation of alkenes. This approach simultaneously introduces CF2H groups along with complex alkyl or aryl groups into alkenes with regioselectivity opposite to traditional CF2H radical addition. We demonstrate a broad substrate scope and a wide functional group compatibility. This scalable protocol is applied to the late-stage functionalization of complex molecules and the synthesis of CF2H analogues of bioactive molecules. Mechanistic studies and density functional theory calculations suggest a unique ligand effect on the reactivity of the Cu-CF2H species.
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Affiliation(s)
- Aijie Cai
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Wenhao Yan
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Xiaojun Zeng
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Samson B Zacate
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Tzu-Hsuan Chao
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Jeanette A Krause
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA
| | - Mu-Jeng Cheng
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Wei Liu
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, USA.
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15
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Nobile E, Castanheiro T, Besset T. Radical-Promoted Distal C-H Functionalization of C(sp 3 ) Centers with Fluorinated Moieties. Angew Chem Int Ed Engl 2021; 60:12170-12191. [PMID: 32897632 DOI: 10.1002/anie.202009995] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/28/2020] [Indexed: 12/12/2022]
Abstract
Due to their unique properties, fluorinated scaffolds are pivotal compounds in pharmaceuticals, agrochemicals, and materials science. Over the last years, the development of versatile strategies for the selective synthesis of fluorinated molecules by direct C-H bond functionalization has attracted a lot of attention. In particular, the design of novel transformations based on a radical process was a bottleneck for distal C-H functionalization reactions, offering synthetic solutions for the selective introduction of fluorinated groups. This Minireview highlights the major contributions in this blossoming field. The development of new methodologies for the remote functionalization of aliphatic derivatives with various fluorinated groups based on a 1,5-hydrogen atom transfer process and a β-fragmentation reaction will be showcased and discussed.
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Affiliation(s)
- Enzo Nobile
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000, Rouen, France
| | - Thomas Castanheiro
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000, Rouen, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000, Rouen, France
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16
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Li C, Liao Y, Tan X, Liu X, Liu P, Lv WX, Wang H. Hypervalent iodine-mediated gem-difluorination of vinyl halides enabled by exclusive 1,2-halo migration. Sci China Chem 2021. [DOI: 10.1007/s11426-021-9965-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Nobile E, Castanheiro T, Besset T. Radical‐Promoted Distal C−H Functionalization of C(sp
3
) Centers with Fluorinated Moieties. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202009995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Enzo Nobile
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | - Thomas Castanheiro
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
| | - Tatiana Besset
- Normandie Univ INSA Rouen UNIROUEN CNRS COBRA (UMR 6014) 76000 Rouen France
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18
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Zeng X, Yan W, Zacate SB, Cai A, Wang Y, Yang D, Yang K, Liu W. Copper-Catalyzed Deaminative Difluoromethylation. Angew Chem Int Ed Engl 2020; 59:16398-16403. [PMID: 32495485 DOI: 10.1002/anie.202006048] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/01/2020] [Indexed: 12/17/2022]
Abstract
The difluoromethyl group (CF2 H) is considered to be a lipophilic and metabolically stable bioisostere of an amino (NH2 ) group. Therefore, methods that can rapidly convert an NH2 group into a CF2 H group would be of great value to medicinal chemistry. We report herein an efficient Cu-catalyzed approach for the conversion of alkyl pyridinium salts, which can be readily synthesized from the corresponding alkyl amines, to their alkyl difluoromethane analogues. This method tolerates a broad range of functional groups and can be applied to the late-stage modification of complex amino-containing pharmaceuticals.
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Affiliation(s)
- Xiaojun Zeng
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Wenhao Yan
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Samson B Zacate
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Aijie Cai
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Yufei Wang
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Dongqi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Kundi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
| | - Wei Liu
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
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19
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Zeng X, Yan W, Zacate SB, Cai A, Wang Y, Yang D, Yang K, Liu W. Copper‐Catalyzed Deaminative Difluoromethylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaojun Zeng
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
| | - Wenhao Yan
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
| | - Samson B. Zacate
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
| | - Aijie Cai
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
| | - Yufei Wang
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
| | - Dongqi Yang
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
| | - Kundi Yang
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
| | - Wei Liu
- Department of Chemistry and BiochemistryMiami University Oxford OH 45056 USA
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20
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Lu Z, Hennis O, Gentry J, Xu B, Hammond GB. Base-Promoted Radical Azofluoromethylation of Unactivated Alkenes. Org Lett 2020; 22:4383-4388. [PMID: 32400165 DOI: 10.1021/acs.orglett.0c01395] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The base-induced reaction of aryl diazonium salts with commercially available CF3SO2Na/CF2HSO2Na allows for the generation of the corresponding diazene radicals along with fluoromethyl radicals. The addition of fluoromethyl radicals to alkenes with subsequent diazene trapping provides the azofluoromethylation products in good to excellent yields. This metal-free method under mild reaction conditions has broad functional group compatibility and is applicable in the late-stage modification of various natural products and bioactive molecules.
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Affiliation(s)
- Zhichao Lu
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Olivia Hennis
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Joseph Gentry
- Williams College, Williamstown, Massachusetts 01267, United States
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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21
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Synthesis and Antibacterial Activity of Difluoromethyl Cinnamoyl Amides. Molecules 2020; 25:molecules25040789. [PMID: 32059479 PMCID: PMC7070587 DOI: 10.3390/molecules25040789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 01/18/2020] [Accepted: 01/23/2020] [Indexed: 01/18/2023] Open
Abstract
Series of novel amides of isoferulic acid, where the phenolic hydroxyl was replaced by a difluoromethyl group, were synthesized and their in vitro antibacterial activities assayed against fourteen bacterial strains (six Gram-positive and eight Gram-negative). A one-pot methodology was developed to obtain the 3′-(difluoromethyl)-4′-methoxycinnamoyl amides using Deoxofluor® as a fluorinating agent. The N-isopropyl, N-isopentyl, and N-(2-phenylethyl) amides 11b, 11d and 11g were the most active and selective against Mycobacterium smegmatis (MIC = 8 µg/mL) with 11b and 11g displaying negligible or no cytotoxicity against HepG2 and A549 cells. Thirteen analogs of N-isopropylamide 11b were also synthesized and their antibacterial activity assayed. Results show that the difluoromethyl moiety enhanced antibacterial activity and selectivity towards M. smegmatis, changing the microorganism inhibition profile of the parent compound. The selectivity exhibited by some of the compounds towards M. smegmatis makes them potential leads in the search for new narrow spectrum antibiotics against M. tuberculosis.
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22
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Liu H, Ding A, Ma C, Huang X, Feng C, Wang Z, Wang Z, Lu G. The difluoromethylthio moiety lowers the LCST of oligo(ethylene glycol)-based homopolymers. Polym Chem 2020. [DOI: 10.1039/d0py00920b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Introduction of difluoromethylthio moiety could significantly lower LCSTs of oligo(ethylene glycol)-based thermo-responsive homopolymers.
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Affiliation(s)
- Haoyu Liu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Aishun Ding
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Chen Ma
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Zhiqin Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Zhaolei Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
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23
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Liu H, Zhang S, Huang X, Ding A, Lu G. Construction of well-defined difluoromethylthio-containing amphiphilic homopolymers by RAFT polymerization. Polym Chem 2020. [DOI: 10.1039/d0py01234c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A well-defined difluoromethylthio-containing amphiphilic homopolymer with a lower Tg was obtained by RAFT polymerization.
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Affiliation(s)
- Haoyu Liu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Sen Zhang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Aishun Ding
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
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24
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Zeng X, Yan W, Paeth M, Zacate SB, Hong PH, Wang Y, Yang D, Yang K, Yan T, Song C, Cao Z, Cheng MJ, Liu W. Copper-Catalyzed, Chloroamide-Directed Benzylic C–H Difluoromethylation. J Am Chem Soc 2019; 141:19941-19949. [DOI: 10.1021/jacs.9b11549] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaojun Zeng
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, P. R. China
- National Energy Center for Coal to Liquids, Synfuels China Technology Co., Ltd, Beijing, 101400, P. R. China
| | - Wenhao Yan
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Matthew Paeth
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Samson B. Zacate
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Pei-Hsun Hong
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Yufei Wang
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Dongqi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Kundi Yang
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Tao Yan
- National Energy Center for Coal to Liquids, Synfuels China Technology Co., Ltd, Beijing, 101400, P. R. China
| | - Chang Song
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, P. R. China
| | - Zhi Cao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, P. R. China
- National Energy Center for Coal to Liquids, Synfuels China Technology Co., Ltd, Beijing, 101400, P. R. China
| | - Mu-Jeng Cheng
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Wei Liu
- Department of Chemistry and Biochemistry, Miami University, Oxford, Ohio 45056, United States
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25
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Batisse C, Céspedes Dávila MF, Castello M, Messara A, Vivet B, Marciniak G, Panossian A, Hanquet G, Leroux FR. Efficient asymmetric synthesis of aryl difluoromethyl sulfoxides and their use to access enantiopure α-difluoromethyl alcohols. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.04.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Zafrani Y, Sod-Moriah G, Yeffet D, Berliner A, Amir D, Marciano D, Elias S, Katalan S, Ashkenazi N, Madmon M, Gershonov E, Saphier S. CF 2H, a Functional Group-Dependent Hydrogen-Bond Donor: Is It a More or Less Lipophilic Bioisostere of OH, SH, and CH 3? J Med Chem 2019; 62:5628-5637. [PMID: 31091098 DOI: 10.1021/acs.jmedchem.9b00604] [Citation(s) in RCA: 161] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The effects of the CF2H moiety on H-bond (HB) acidity and lipophilicity of various compounds, when attached directly to an aromatic ring or to other functions like alkyls, ethers/thioethers, or electron-withdrawing groups, are discussed. It was found that the CF2H group acts as a HB donor with a strong dependence on the attached functional group ( A = 0.035-0.165). Regarding lipophilicity, the CF2H group may act as a more lipophilic bioisostere of OH but as a similar or less lipophilic bioisostere of SH and CH3, respectively, when attached to Ar or alkyl. In addition, the lipophilicity of ethers, sulfoxides, and sulfones is dramatically increased upon CH3/CF2H exchange at the α position. Interestingly, this exchange significantly affects not only the polarity and the volume of the solutes but also their HB-accepting ability, the main factors influencing log Poct. Accordingly, this study may be helpful in the rational design of drugs containing this moiety.
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Affiliation(s)
- Yossi Zafrani
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Gali Sod-Moriah
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Dina Yeffet
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Anat Berliner
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Dafna Amir
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Daniele Marciano
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Shlomi Elias
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Shahaf Katalan
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Nissan Ashkenazi
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Moran Madmon
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Eytan Gershonov
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
| | - Sigal Saphier
- The Department of Organic Chemistry , Israel Institute for Biological Research , Ness-Ziona 74100 , Israel
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27
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Ivanova MV, Bayle A, Besset T, Pannecoucke X, Poisson T. Copper-Mediated Introduction of the CF2
PO(OEt)2
Motif: Scope and Limitations. Chemistry 2017; 23:17318-17338. [DOI: 10.1002/chem.201703542] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Maria V. Ivanova
- Normandie Univ; INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014); 76000 Rouen France
| | - Alexandre Bayle
- Normandie Univ; INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014); 76000 Rouen France
| | - Tatiana Besset
- Normandie Univ; INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014); 76000 Rouen France
| | - Xavier Pannecoucke
- Normandie Univ; INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014); 76000 Rouen France
| | - Thomas Poisson
- Normandie Univ; INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014); 76000 Rouen France
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28
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Zafrani Y, Yeffet D, Sod-Moriah G, Berliner A, Amir D, Marciano D, Gershonov E, Saphier S. Difluoromethyl Bioisostere: Examining the “Lipophilic Hydrogen Bond Donor” Concept. J Med Chem 2017; 60:797-804. [DOI: 10.1021/acs.jmedchem.6b01691] [Citation(s) in RCA: 300] [Impact Index Per Article: 42.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yossi Zafrani
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
| | - Dina Yeffet
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
| | - Gali Sod-Moriah
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
| | - Anat Berliner
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
| | - Dafna Amir
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
| | - Daniele Marciano
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
| | - Eytan Gershonov
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
| | - Sigal Saphier
- The Department of Organic
Chemistry, Israel Institute for Biological Research, Ness-Ziona 74100, Israel
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