1
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Sedikides A, Lennox AJJ. Silver-Catalyzed ( Z)-β-Fluoro-vinyl Iodonium Salts from Alkynes: Efficient and Selective Syntheses of Z-Monofluoroalkenes. J Am Chem Soc 2024; 146:15672-15680. [PMID: 38829699 PMCID: PMC11177317 DOI: 10.1021/jacs.4c03826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/05/2024]
Abstract
Monofluoroalkenes are stable and lipophilic amide bioisosteres used in medicinal chemistry. However, efficient and stereoselective methods for synthesizing Z-monofluoroalkenes are underdeveloped. We envisage (Z)-β-fluoro-vinyl iodonium salts (Z-FVIs) as coupling partners for the diverse and stereoselective synthesis of Z-monofluoroalkenes. Disclosed herein is the development and application of a silver(I)-catalyzed process for accessing a broad scope of (Z)-FVIs with exclusive Z-stereoselectivity and regioselectivity from alkynes in a single step. Experimental and computational studies provide insight into the mechanism of the catalytic cycle and the role of the silver(I) catalyst, and the reactivity of (Z)-FVIs is explored through several stereospecific derivatizations.
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Affiliation(s)
- Alexi
T. Sedikides
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
| | - Alastair J. J. Lennox
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol, BS8 1TS, United Kingdom
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2
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Lu XY, Huang R, Wang ZZ, Zhang X, Jiang F, Yang GX, Shui FY, Su MX, Sun YX, Sun HL. Photoinduced Decarboxylative Difluoroalkylation and Perfluoroalkylation of α-Fluoroacrylic Acids. J Org Chem 2024; 89:6494-6505. [PMID: 38634729 DOI: 10.1021/acs.joc.4c00684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Herein, a novel and practical methodology for the photoinduced decarboxylative difluoroalkylation and perfluoroalkylation of α-fluoroacrylic acids is reported. A wide range of α-fluoroacrylic acids can be used as applicable feedstocks, allowing for rapid access to structurally important difluoroalkylated and polyfluoroalkylated monofluoroalkenes with high Z-stereoselectivity under mild conditions. The protocol demonstrates excellent functional group compatibility and provides a platform for modifying complex biologically active molecules.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Rui Huang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Zi-Zhen Wang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Xiang Zhang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Fan Jiang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Gui-Xian Yang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Fu-Yi Shui
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Meng-Xue Su
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Yan-Xi Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
| | - Hai-Lun Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou 239000, China
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3
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Guo S, Sun W, Tucker JW, Hesp KD, Szymczak NK. Preparation and Functionalization of Mono- and Polyfluoroepoxides via Fluoroalkylation of Carbonyl Electrophiles. Chemistry 2023; 29:e202203578. [PMID: 36478306 DOI: 10.1002/chem.202203578] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/12/2022]
Abstract
We outline a new synthetic method to prepare mono- and polyfluoroepoxides from a diverse pool of electrophiles (ketones, acyl chlorides, esters) and fluoroalkyl anion equivalents. The initially formed α-fluoro alkoxides undergo subsequent intramolecular ring closure when heated. We demonstrated the versatility of the method through the isolation of 16 mono- and polyfluoroepoxide products. These compounds provide unique entry points for further diversification via either fluoride migration coupled with ring opening, or defluorinative functionalization reactions, the latter of which can be used as a late-stage method to install select bioactive moieties. The reaction sequences described herein provide a pathway to functionalize the commonly observed products formed from 1,2-addition into carbonyl electrophiles.
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Affiliation(s)
- Shuo Guo
- Department of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA
| | - Wei Sun
- Department of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA
| | - Joseph W Tucker
- Medicine Design, Pfizer Inc.: Eastern Point Rd., Groton, CT., 06340, USA
| | - Kevin D Hesp
- Medicine Design, Pfizer Inc.: Eastern Point Rd., Groton, CT., 06340, USA
| | - Nathaniel K Szymczak
- Department of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA
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4
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Han S, Lee Y, Jung Y, Cho SH. Stereoselective Access to Tetra‐ and Tri‐Substituted Fluoro‐ and Chloro‐Borylalkenes via Boron‐Wittig Reaction. Angew Chem Int Ed Engl 2022; 61:e202210532. [DOI: 10.1002/anie.202210532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Seungcheol Han
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Yeosan Lee
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Yujin Jung
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Seung Hwan Cho
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
- Institute for Convergence Research and Education in Advanced Technology (I–CREATE) Yonsei University Seoul 03722 Republic of Korea
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5
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Ramos De Dios SM, Tiwari VK, McCune CD, Dhokale RA, Berkowitz DB. Biomacromolecule-Assisted Screening for Reaction Discovery and Catalyst Optimization. Chem Rev 2022; 122:13800-13880. [PMID: 35904776 DOI: 10.1021/acs.chemrev.2c00213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reaction discovery and catalyst screening lie at the heart of synthetic organic chemistry. While there are efforts at de novo catalyst design using computation/artificial intelligence, at its core, synthetic chemistry is an experimental science. This review overviews biomacromolecule-assisted screening methods and the follow-on elaboration of chemistry so discovered. All three types of biomacromolecules discussed─enzymes, antibodies, and nucleic acids─have been used as "sensors" to provide a readout on product chirality exploiting their native chirality. Enzymatic sensing methods yield both UV-spectrophotometric and visible, colorimetric readouts. Antibody sensors provide direct fluorescent readout upon analyte binding in some cases or provide for cat-ELISA (Enzyme-Linked ImmunoSorbent Assay)-type readouts. DNA biomacromolecule-assisted screening allows for templation to facilitate reaction discovery, driving bimolecular reactions into a pseudo-unimolecular format. In addition, the ability to use DNA-encoded libraries permits the barcoding of reactants. All three types of biomacromolecule-based screens afford high sensitivity and selectivity. Among the chemical transformations discovered by enzymatic screening methods are the first Ni(0)-mediated asymmetric allylic amination and a new thiocyanopalladation/carbocyclization transformation in which both C-SCN and C-C bonds are fashioned sequentially. Cat-ELISA screening has identified new classes of sydnone-alkyne cycloadditions, and DNA-encoded screening has been exploited to uncover interesting oxidative Pd-mediated amido-alkyne/alkene coupling reactions.
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Affiliation(s)
| | - Virendra K Tiwari
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Christopher D McCune
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Ranjeet A Dhokale
- Higuchi Biosciences Center, University of Kansas, Lawrence, Kansas 66047, United States
| | - David B Berkowitz
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
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6
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Han S, Lee Y, Jung Y, Cho SH. Stereoselective Access to Tetra‐ and Tri‐Substituted Fluoro‐ and Chloro‐borylalkenes via Boron‐Wittig Reaction. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Seungcheol Han
- POSTECH: Pohang University of Science and Technology Chemistry KOREA, REPUBLIC OF
| | - Yeosan Lee
- POSTECH: Pohang University of Science and Technology Chemistry KOREA, REPUBLIC OF
| | - Yujin Jung
- POSTECH: Pohang University of Science and Technology Chemistry KOREA, REPUBLIC OF
| | - Seung Hwan Cho
- Pohang University of Science and Technology (POSTECH) Chemistry San 31, HyojadongNamgu 37673 Pohang KOREA, REPUBLIC OF
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7
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Rachor SG, Jaeger R, Braun T. Au(I) Fluorido Phosphine Complexes: Tools for the Hydrofluorination of Alkynes. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Simon G. Rachor
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Ruben Jaeger
- Humboldt University of Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Thomas Braun
- Humboldt University Chemistry Brook-Taylor Str. 2 12489 Berlin GERMANY
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8
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Lu XY, Ge MY, Tao TH, Sun XM, Gao MT, Bao ST, Liu QL, Xia ZJ, Xia J. Iron-catalyzed decarboxylative and oxidative decarbonylative cross-coupling: a new strategy for the synthesis of monofluoroalkenes. Org Chem Front 2022. [DOI: 10.1039/d1qo01567b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Herein, an iron(ii)-catalyzed decarboxylative and oxidative decarbonylative cross-coupling of α-fluoro cinnamic acids with aliphatic aldehydes is presented.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
- School of Chemistry and Chemical Engineering, AnHui University, He Fei, 230601, China
| | - Meng-Yuan Ge
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Ting-Hua Tao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Xiao-Mei Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Meng-Ting Gao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Shu-Ting Bao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Qi-Le Liu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Ze-Jie Xia
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Jing Xia
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
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9
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Lu XY, Chen XK, Gao MT, Sun XM, Jiang RC, Wang JC, Yu LJ, Ge MY, Wei ZH, Liu Z. Copper-catalyzed direct monofluoroalkenylation of C(sp 3)–H bonds via decarboxylation of α-fluoroacrylic acids. Org Chem Front 2022. [DOI: 10.1039/d2qo00977c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a protocol for the copper-catalyzed direct monofluoroalkenylation of C(sp3)–H bonds is reported.
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Affiliation(s)
- Xiao-Yu Lu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
- School of Chemistry and Chemical Engineering, AnHui University, He Fei, 230601, China
| | - Xing-Ke Chen
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Meng-Ting Gao
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Xiao-Mei Sun
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Run-Chuang Jiang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Jun-Chao Wang
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Li-Juan Yu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Meng-Yuan Ge
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Zheng-Huan Wei
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
| | - Zi Liu
- School of Materials and Chemical Engineering, ChuZhou University, Chu Zhou, 239000, China
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10
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Dobie C, Montgomery AP, Szabo R, Yu H, Skropeta D. Synthesis and biological evaluation of selective phosphonate-bearing 1,2,3-triazole-linked sialyltransferase inhibitors. RSC Med Chem 2021; 12:1680-1689. [PMID: 34778769 DOI: 10.1039/d1md00079a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/19/2021] [Indexed: 01/01/2023] Open
Abstract
The critical role of sialyltransferase (ST) enzymes in tumour cell growth and metastasis, as well as links to multi-drug and radiation resistance, has seen STs emerge as a target for potential antimetastatic cancer treatments. One promising class of ST inhibitors that improve upon the pharmacokinetic issues of previous inhibitors is the 1,2,3-triazole-linked transition-state analogues. Herein, we present the design and synthesis of a new generation of 1,2,3-triazole-linked sialyltransferase inhibitors, along with their biological evaluation demonstrating increased potency for phosphonate bearing compounds. The six most promising inhibitors presented in this work exhibited a greater number of binding modes for hST6Gal I over hST3Gal I, with K i ranging from 3-55 μM. This work highlights phosphonate bearing triazole-linked compounds as a promising class of synthetically accessible ST inhibitors that warrant further investigation.
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Affiliation(s)
- Christopher Dobie
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong NSW 2522 Australia
| | - Andrew P Montgomery
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong NSW 2522 Australia
| | - Rémi Szabo
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong NSW 2522 Australia
| | - Haibo Yu
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong NSW 2522 Australia .,Illawarra Health and Medical Research Institute Wollongong NSW 2522 Australia
| | - Danielle Skropeta
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong NSW 2522 Australia .,Illawarra Health and Medical Research Institute Wollongong NSW 2522 Australia
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11
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Affiliation(s)
- Xiangqing Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Haifeng Du
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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12
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Isoda M, Uetake Y, Takimoto T, Tsuda J, Hosoya T, Niwa T. Convergent Synthesis of Fluoroalkenes Using a Dual-Reactive Unit. J Org Chem 2021; 86:1622-1632. [PMID: 33400531 DOI: 10.1021/acs.joc.0c02474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Fluoroalkenes have shown importance as a metabolically stable isostere of amide compounds. To expedite the synthesis of diverse fluoroalkenes, we have developed a dual-reactive C2-unit, (Z)-1-boryl-1-fluoro-2-tosyloxyethene, containing nucleophilic and electrophilic moieties. Consecutive palladium-catalyzed cross-coupling reactions of this unit with aryl bromides and aryl boronic acids allow for the convergent synthesis of diverse trans-1,2-diaryl-substituted fluoroethenes in a chemoselective and stereoretentive manner.
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Affiliation(s)
- Motoyuki Isoda
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan.,Chemical Biology Team, Division of Bio-Function Imaging, RIKEN Center for Life Science Technologies (CLST), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
| | - Yuta Uetake
- Chemical Biology Team, Division of Bio-Function Imaging, RIKEN Center for Life Science Technologies (CLST), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
| | - Tadashi Takimoto
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
| | - Junpei Tsuda
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan.,Chemical Biology Team, Division of Bio-Function Imaging, RIKEN Center for Life Science Technologies (CLST), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
| | - Takamitsu Hosoya
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan.,Chemical Biology Team, Division of Bio-Function Imaging, RIKEN Center for Life Science Technologies (CLST), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan.,Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takashi Niwa
- Laboratory for Chemical Biology, RIKEN Center for Biosystems Dynamics Research (BDR), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan.,Chemical Biology Team, Division of Bio-Function Imaging, RIKEN Center for Life Science Technologies (CLST), 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan
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13
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Li Z, Qiu X, Lou J, Wang Q. Progress in Visible-Light Catalyzed C—F Bond Functionalization of gem-Difluoroalkenes. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Montgomery AP, Dobie C, Szabo R, Hallam L, Ranson M, Yu H, Skropeta D. Design, synthesis and evaluation of carbamate-linked uridyl-based inhibitors of human ST6Gal I. Bioorg Med Chem 2020; 28:115561. [PMID: 32616185 DOI: 10.1016/j.bmc.2020.115561] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/14/2020] [Accepted: 05/16/2020] [Indexed: 12/22/2022]
Abstract
Sialic acid at the terminus of cell surface glycoconjugates is a critical element in cell-cell recognition, receptor binding and immune responses. Sialyltransferases (ST), the enzymes responsible for the biosynthesis of sialylated glycans are highly upregulated in cancer and the resulting hypersialylation of the tumour cell surface correlates strongly with tumour growth, metastasis and drug resistance. Inhibitors of human STs, in particular human ST6Gal I, are thus expected to be valuable chemical tools for the discovery of novel anticancer drugs. Herein, we report on the computationally-guided design and development of uridine-based inhibitors that replace the charged phosphodiester linker of known ST inhibitors with a neutral carbamate to improve pharmacokinetic properties and synthetic accessibility. A series of 24 carbamate-linked uridyl-based compounds were synthesised by coupling aryl and hetaryl α-hydroxyphosphonates with a 5'-amino-5'-deoxyuridine fragment. The inhibitory activities of the newly synthesised compounds against recombinant human ST6Gal I were determined using a luminescent microplate assay, and five promising inhibitors with Ki's ranging from 1 to 20 µM were identified. These results show that carbamate-linked uridyl-based compounds are a potential new class of readily accessible, non-cytotoxic ST inhibitors to be further explored.
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Affiliation(s)
- Andrew P Montgomery
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Christopher Dobie
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Rémi Szabo
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Laura Hallam
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Marie Ranson
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Haibo Yu
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Danielle Skropeta
- Molecular Horizons and School of Chemistry & Molecular Bioscience, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia; Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
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15
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Tiwari V, Bingham JT, Vyas S, Singh A. Intermolecular fluoroamination of allenes towards substituted vinyl fluorides. Org Biomol Chem 2020; 18:9044-9049. [DOI: 10.1039/d0ob01697g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Allene difunctionalization: Selectfluor mediated intermolecular aminofluorination of allenes with triazole and tetrazole nucleophiles towards vinyl fluorides.
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Affiliation(s)
- Vibha Tiwari
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | | | - Shubham Vyas
- Department of Chemistry
- Colorado School of Mines
- Golden
- USA
| | - Anand Singh
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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16
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Fujii K, Ito S, Mikami K. Synthetic Methodologies for Perfluoroaryl-Substituted (Diaryl)methylphosphonates, -Phosphinates via S NAr Reaction. J Org Chem 2019; 84:12281-12291. [PMID: 31483649 DOI: 10.1021/acs.joc.9b01402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The new synthetic methodologies for perfluoroaryl-substituted (diaryl)methylphosphonates, -phosphinates via nucleophilic aromatic substitution (SNAr) were developed. Benzylphosphonate and α-fluorobenzylphosphonate reacted with a wide variety of perfluoroarenes via SNAr reaction. The reaction took place quickly and gave perfluoroarylated phosphonates in high yields. Highly diastereoselective SNAr reaction with binaphthyl-based chiral phosphinates was further carried out.
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Affiliation(s)
- Kohei Fujii
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , Ookayama, Meguro-ku, Tokyo 152-8552 , Japan
| | - Shigekazu Ito
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , Ookayama, Meguro-ku, Tokyo 152-8552 , Japan
| | - Koichi Mikami
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , Ookayama, Meguro-ku, Tokyo 152-8552 , Japan
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17
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Ni J, Nishonov B, Pardaev A, Zhang A. Palladium-Catalyzed Ring-Opening Coupling of gem-Difluorocyclopropanes for the Construction of 2-Fluoroallylic Sulfones. J Org Chem 2019; 84:13646-13654. [DOI: 10.1021/acs.joc.9b01897] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Jiabin Ni
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bekzod Nishonov
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Azizbek Pardaev
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
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18
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Kondoh A, Koda K, Terada M. Organocatalytic Nucleophilic Substitution Reaction of gem-Difluoroalkenes with Ketene Silyl Acetals. Org Lett 2019; 21:2277-2280. [DOI: 10.1021/acs.orglett.9b00566] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Azusa Kondoh
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Kazumi Koda
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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19
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Veliks J, Kazia A. Fluoromethylene Transfer from Diarylfluoromethylsulfonium Salts: Synthesis of Fluorinated Epoxides. Chemistry 2019; 25:3786-3789. [PMID: 30681208 DOI: 10.1002/chem.201900349] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Indexed: 01/17/2023]
Abstract
Diarylfluoromethyl sulfonium salts are efficient fluoromethylene transfer reagents equivalent to fluorocarbene, which is difficult to access. This was demonstrated by the development of a monofluorinated Johnson-Corey-Chaykovsky reaction with ketones and aldehydes, delivering uncommon 2-unsubstituted fluoroepoxides. This is the first evidence for the feasibility of sulfur fluoromethylylide and its action as a reaction intermediate.
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Affiliation(s)
- Janis Veliks
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia
| | - Armands Kazia
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia
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20
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Monticelli S, Colella M, Pillari V, Tota A, Langer T, Holzer W, Degennaro L, Luisi R, Pace V. Modular and Chemoselective Strategy for the Direct Access to α-Fluoroepoxides and Aziridines via the Addition of Fluoroiodomethyllithium to Carbonyl-Like Compounds. Org Lett 2019; 21:584-588. [PMID: 30600682 DOI: 10.1021/acs.orglett.8b04001] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
An expeditious, high-yielding synthesis of rare α-fluoroepoxides and α-fluoroaziridines through the addition of the unkown fluoroiodomethyllithium (LiCHIF)-formed via deprotonation the commercially available fluoroiodomethane with a lithium amide base-to carbonyl-like compounds is documented. The ring-closure reactions, leading to α-fluorinated three-membered heterocycles, rely on the diversely reactive C-I and C-F bonds. Excellent chemoselectivity was observed in the presence of highly sensitive functionalities-aldehyde, ketone, nitrile, alkene-which remained untouched during the homologation sequence.
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Affiliation(s)
- Serena Monticelli
- University of Vienna , Department of Pharmaceutical Chemistry , Althanstrasse, 14 , A-1090 Vienna , Austria
| | - Marco Colella
- Department of Pharmacy - Drug Sciences , University of Bari "A. Moro" , Via E. Orabona 4 , Bari 70125 , Italy
| | - Veronica Pillari
- University of Vienna , Department of Pharmaceutical Chemistry , Althanstrasse, 14 , A-1090 Vienna , Austria
| | - Arianna Tota
- Department of Pharmacy - Drug Sciences , University of Bari "A. Moro" , Via E. Orabona 4 , Bari 70125 , Italy
| | - Thierry Langer
- University of Vienna , Department of Pharmaceutical Chemistry , Althanstrasse, 14 , A-1090 Vienna , Austria
| | - Wolfgang Holzer
- University of Vienna , Department of Pharmaceutical Chemistry , Althanstrasse, 14 , A-1090 Vienna , Austria
| | - Leonardo Degennaro
- Department of Pharmacy - Drug Sciences , University of Bari "A. Moro" , Via E. Orabona 4 , Bari 70125 , Italy
| | - Renzo Luisi
- Department of Pharmacy - Drug Sciences , University of Bari "A. Moro" , Via E. Orabona 4 , Bari 70125 , Italy
| | - Vittorio Pace
- University of Vienna , Department of Pharmaceutical Chemistry , Althanstrasse, 14 , A-1090 Vienna , Austria
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21
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Ma YC, Zhang Y, Gu CZ, Du GF, He L. Stereoselective synthesis of α-fluoroacrylonitriles via organocatalytic cyanation of gem-difluoroalkenes and TMSCN. NEW J CHEM 2019. [DOI: 10.1039/c9nj02370d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
DBU-catalyzed cyanation of gem-difluoroalkenes with TMSCN, a highly stereoselective synthesis of α-fluoroacrylonitriles.
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Affiliation(s)
- Yu-Chuan Ma
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering
- Shihezi University
- Xinjiang Uygur Autonomous Region
- People's Republic of China
| | - Yang Zhang
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering
- Shihezi University
- Xinjiang Uygur Autonomous Region
- People's Republic of China
| | - Cheng-Zhi Gu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering
- Shihezi University
- Xinjiang Uygur Autonomous Region
- People's Republic of China
| | - Guang-Fen Du
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering
- Shihezi University
- Xinjiang Uygur Autonomous Region
- People's Republic of China
| | - Lin He
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering
- Shihezi University
- Xinjiang Uygur Autonomous Region
- People's Republic of China
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22
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Yang H, Tian C, Qiu D, Tian H, An G, Li G. Organic photoredox catalytic decarboxylative cross-coupling of gem-difluoroalkenes with unactivated carboxylic acids. Org Chem Front 2019. [DOI: 10.1039/c9qo00495e] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first redox neutral decarboxylative alkylation of gem-difluoroalkenes via C–F bond activation enabled by organic photoredox catalysis has been developed.
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Affiliation(s)
- Hui Yang
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- People's Republic of China
| | - Chao Tian
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- People's Republic of China
| | - Dongsheng Qiu
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- People's Republic of China
| | - Haitao Tian
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- People's Republic of China
| | - Guanghui An
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- People's Republic of China
| | - Guangming Li
- Key Laboratory of Functional Inorganic Material Chemistry (MOE)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- People's Republic of China
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23
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Takeda S, Hayashi S, Noji M, Takanami T. Chiroptical Protocol for the Absolute Configurational Assignment of Alkyl-Substituted Epoxides Using Bis(zinc porphyrin) as a CD-Sensitive Bidentate Host. J Org Chem 2018; 84:645-652. [PMID: 30547578 DOI: 10.1021/acs.joc.8b02469] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The absolute configurations of simple alkyl-substituted chiral epoxides not bearing other ligating groups are readily determined via the exciton-coupled circular dichroism (ECCD) protocol using bidentate bis(zinc porphyrin) host system BP1 as a CD-sensitive chirality probe. In this situation, chiral epoxides can successfully be incorporated into the cleft of V-shaped host BP1 by double coordination of both oxygen lone pairs of the guest to the two central zinc ions of the host. We also propose a working model based on an MM2 optimized structure of the substrates that enables nonempirical prediction of the chirality of the bound epoxide.
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Affiliation(s)
- Shiori Takeda
- Meiji Pharmaceutical University , 2-522-1 Noshio , Kiyose, Tokyo 204-8588 , Japan
| | - Satoshi Hayashi
- Meiji Pharmaceutical University , 2-522-1 Noshio , Kiyose, Tokyo 204-8588 , Japan
| | - Masahiro Noji
- Meiji Pharmaceutical University , 2-522-1 Noshio , Kiyose, Tokyo 204-8588 , Japan
| | - Toshikatsu Takanami
- Meiji Pharmaceutical University , 2-522-1 Noshio , Kiyose, Tokyo 204-8588 , Japan
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24
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Hsieh MT, Lee KH, Kuo SC, Lin HC. Lewis acid-mediated defluorinative [3+2] cycloaddition/aromatization cascade of 2,2-difluoroethanol systems with nitriles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701581] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Min-Tsang Hsieh
- School of Pharmacy; China Medical University; Taichung 404 Taiwan, R.O.C
- Chinese Medicinal Research and Development Center; China Medical University Hospital; Taiwan, R.O.C
- Natural Products Research Laboratories; UNC Eshelman School of Pharmacy; University of North Carolina; Chapel Hill, NC 27599 United States
| | - Kuo-Hsiung Lee
- School of Pharmacy; China Medical University; Taichung 404 Taiwan, R.O.C
- Chinese Medicinal Research and Development Center; China Medical University Hospital; Taiwan, R.O.C
| | - Sheng-Chu Kuo
- School of Pharmacy; China Medical University; Taichung 404 Taiwan, R.O.C
| | - Hui-Chang Lin
- School of Pharmacy; China Medical University; Taichung 404 Taiwan, R.O.C
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25
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Zhu C, Zhu R, Chen P, Chen F, Wu W, Jiang H. Carbonyl Ylides Derived from Palladium Carbenes: The Impressive Fluorine Effect. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700336] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Chuanle Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Rui Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Pengquan Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Fulin Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province; School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
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26
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Liu TL, Wu J, Zhao Y. Divergent reactivities in fluoronation of allylic alcohols: synthesis of Z-fluoroalkenes via carbon-carbon bond cleavage. Chem Sci 2017; 8:3885-3890. [PMID: 28966780 PMCID: PMC5578365 DOI: 10.1039/c7sc00483d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 03/15/2017] [Indexed: 12/13/2022] Open
Abstract
An unconventional cleavage of an unstrained carbon-carbon bond in allylic alcohols can be induced by the use of N-fluorobenzenesulfonimide (NFSI) under catalyst-free conditions. By using this simple procedure, a wide range of functionalized Z-fluoroalkenes can be accessed in high yield and selectivity from cyclic and acyclic allylic alcohols.
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Affiliation(s)
- Tang-Lin Liu
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , 117543 , Republic of Singapore .
| | - Ji'En Wu
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , 117543 , Republic of Singapore .
| | - Yu Zhao
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , 117543 , Republic of Singapore .
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27
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Ye Y, Takada T, Buchwald SL. Palladium-Catalyzed Fluorination of Cyclic Vinyl Triflates: Effect of TESCF 3 as an Additive. Angew Chem Int Ed Engl 2016; 55:15559-15563. [PMID: 27862732 PMCID: PMC5198716 DOI: 10.1002/anie.201608927] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Indexed: 11/07/2022]
Abstract
A method for the palladium-catalyzed fluorination of cyclic vinyl triflates has been developed. As with several previous palladium-catalyzed fluorination reactions using fluoride salts, controlling the regioselectivity presented a challenge in developing a practical synthetic procedure. The addition of triethyl(trifluoromethyl)silane (TESCF3 ) was found to effectively address this problem and resulted in drastically improved regioselectivities in this palladium-catalyzed fluorination reaction. This discovery, along with the use of a new biarylphosphine ligand, allowed for the development of an efficient and highly regioselective protocol for the fluorination of vinyl triflates. This method is compatible with a range of sensitive functional groups and provides access to five-, six-, and seven-membered cyclic vinyl fluorides.
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Affiliation(s)
- Yuxuan Ye
- Department of Chemistry, Room 18-490, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Takashi Takada
- Department of Chemistry, Room 18-490, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Stephen L Buchwald
- Department of Chemistry, Room 18-490, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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28
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Liu Q, Shen X, Ni C, Hu J. Stereoselective Carbonyl Olefination with Fluorosulfoximines: Facile Access to Z
or E
Terminal Monofluoroalkenes. Angew Chem Int Ed Engl 2016; 56:619-623. [DOI: 10.1002/anie.201610127] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Qinghe Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
| | - Xiao Shen
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
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29
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Liu Q, Shen X, Ni C, Hu J. Stereoselective Carbonyl Olefination with Fluorosulfoximines: Facile Access to Z
or E
Terminal Monofluoroalkenes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610127] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qinghe Liu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
| | - Xiao Shen
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
| | - Chuanfa Ni
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Ling-Ling Road Shanghai 200032 P.R. China
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30
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Zheng Q, Wang S, Liao R, Liu W. Precursor-Directed Mutational Biosynthesis Facilitates the Functional Assignment of Two Cytochromes P450 in Thiostrepton Biosynthesis. ACS Chem Biol 2016; 11:2673-2678. [PMID: 27560135 DOI: 10.1021/acschembio.6b00419] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Side-ring-modified thiostrepton (TSR) derivatives that vary in their quinaldic acid (QA) substitution possess more potent biological activities and better pharmaceutical properties than the parent compound. In this work, we sought to introduce fluorine onto C-7' or C-8' of the TSR QA moiety via precursor-directed mutational biosynthesis to obtain new TSR variants. Unexpectedly, instead of the target product, the exogenous chemical feeding of 7-F-QA into the ΔtsrT mutant strain resulted in a unique TSR analog with an incomplete side-ring structure and an unoxidized QA moiety (1). Accordingly, two cytochrome P450 genes, tsrP and tsrR, were in-frame deleted to elucidate the candidate responsible for the monooxidation of the QA moiety in TSR. The unfluorinated analog of compound 1 that was thus isolated from ΔtsrP (2) and the abolishment of TSR production in ΔtsrR revealed not only the biosynthetic logic of the TSR side-ring but also the essential checkpoint in TSR maturation before macro-ring closure.
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Affiliation(s)
- Qingfei Zheng
- State Key Laboratory of Bioorganic and Natural Products Chemistry,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Shoufeng Wang
- State Key Laboratory of Bioorganic and Natural Products Chemistry,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Rijing Liao
- State Key Laboratory of Bioorganic and Natural Products Chemistry,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Wen Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry,
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- Huzhou Center of Bio-Synthetic Innovation, 1366 Hongfeng Road, Huzhou 313000, China
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31
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Xie J, Yu J, Rudolph M, Rominger F, Hashmi ASK. Monofluoroalkenylation of Dimethylamino Compounds through Radical–Radical Cross‐Coupling. Angew Chem Int Ed Engl 2016; 55:9416-21. [DOI: 10.1002/anie.201602347] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Jin Xie
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jintao Yu
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of ScienceKing Abdulaziz University (KAU) 21589 Jeddah Saudi Arabia
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32
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Xie J, Yu J, Rudolph M, Rominger F, Hashmi ASK. Monofluoralkenylierung von Dimethylaminoverbindungen durch Radikal‐Radikal‐Kreuzkupplung. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602347] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jin Xie
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
| | - Jintao Yu
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
| | - Matthias Rudolph
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
| | - Frank Rominger
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
| | - A. Stephen K. Hashmi
- Organisch-Chemisches InstitutUniversität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Deutschland
- Chemistry Department, Faculty of ScienceKing Abdulaziz University (KAU) 21589 Jeddah Saudi-Arabien
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33
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Zhou Y, Zhang Y, Wang J. Geminal difunctionalization of α-diazo arylmethylphosphonates: synthesis of fluorinated phosphonates. Org Biomol Chem 2016; 14:10444-10453. [DOI: 10.1039/c6ob01858k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general approach towards diverse fluorinated phosphonates via geminal difunctionalization reactions of α-diazo arylmethylphosphonates is reported.
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Affiliation(s)
- Yujing Zhou
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Yan Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS)
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education
- College of Chemistry
- Peking University
- Beijing 100871
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34
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Xu J, Ahmed EA, Xiao B, Lu QQ, Wang YL, Yu CG, Fu Y. Pd-Catalyzed Regioselective Activation ofgem-Difluorinated Cyclopropanes: A Highly Efficient Approach to 2-Fluorinated Allylic Scaffolds. Angew Chem Int Ed Engl 2015; 54:8231-5. [DOI: 10.1002/anie.201502308] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/17/2015] [Indexed: 12/23/2022]
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35
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Xu J, Ahmed EA, Xiao B, Lu QQ, Wang YL, Yu CG, Fu Y. Pd-Catalyzed Regioselective Activation ofgem-Difluorinated Cyclopropanes: A Highly Efficient Approach to 2-Fluorinated Allylic Scaffolds. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502308] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Wu J, Xiao J, Dai W, Cao S. Synthesis of monofluoroalkenes through selective hydrodefluorination of gem-difluoroalkenes with Red-Al®. RSC Adv 2015. [DOI: 10.1039/c5ra04221f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A practical approach for the selective hydrodefluorination of gem-difluoroalkenes using Red-Al® as reductant at room temperature in CH2Cl2 was reported. Monofluoroalkenes were obtained in moderate to high yields with good E-selectivity.
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Affiliation(s)
- Jingjing Wu
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology (SIT)
- Shanghai 201418
- China
- Key Laboratory of Organofluorine Chemistry
| | - Juan Xiao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Wenpeng Dai
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology (ECUST)
- Shanghai 200237
- China
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37
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Nihei T, Kubo Y, Ishihara T, Konno T. Highly regioselective SN2′ reaction of β-fluoroallylic phosphates with organocopper reagents and its application to the synthesis of fluorine-containing carbocycles. J Fluor Chem 2014. [DOI: 10.1016/j.jfluchem.2014.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Davis RL, Stiller J, Naicker T, Jiang H, Jørgensen KA. Asymmetric organocatalytic epoxidations: reactions, scope, mechanisms, and applications. Angew Chem Int Ed Engl 2014; 53:7406-26. [PMID: 24919420 DOI: 10.1002/anie.201400241] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Indexed: 12/26/2022]
Abstract
Chiral epoxides serve as versatile building blocks in the synthesis of complex organic frameworks. The high strain imposed by the three-membered ring system makes epoxides prone to a variety of nucleophilic ring-opening reactions. Since the development of the Sharpless epoxidation, there have been many important contributions and advances in this area. With the rapid development of the field of asymmetric organocatalysis, a wide range of organocatalysts is now able to catalyze the epoxidation of broad class of unsaturated carbonyl compounds. In this Minireview, recent progress in the development of organocatalytic asymmetric epoxidation methods, the proposed mechanisms of these reactions and their applications as intermediates is reported.
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Affiliation(s)
- Rebecca L Davis
- Center for Catalysis, Department of Chemistry, Aarhus University, 8000 Aarhus C (Denmark); Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada)
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39
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Davis RL, Stiller J, Naicker T, Jiang H, Jørgensen KA. Organokatalytische asymmetrische Epoxidierungen - Reaktionen, Mechanismen und Anwendungen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201400241] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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40
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Zhu Y, Wang Q, Cornwall RG, Shi Y. Organocatalytic asymmetric epoxidation and aziridination of olefins and their synthetic applications. Chem Rev 2014; 114:8199-256. [PMID: 24785198 DOI: 10.1021/cr500064w] [Citation(s) in RCA: 333] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yingguang Zhu
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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41
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Faraldos JA, Coates RM, Giner JL. Alternative synthesis of the Colorado potato beetle pheromone. J Org Chem 2013; 78:10548-54. [PMID: 24047429 DOI: 10.1021/jo4017056] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A concise preparation of the pheromone secreted by the male Colorado potato beetle [viz. (3S)-1,3-dihydroxy-3,7-dimethyl-6-octen-2-one] was accomplished in four steps starting from 2-fluoronerol or 2-fluorogeraniol. The key step in the synthesis involves a 6-endo epoxide ring-opening with ester participation that simultaneously inverts the 3R-configuration of the (3R)-2,3-epoxy-2-fluoroprenyl acetate intermediate and installs the ketone functionality of the semiochemical. Extensive NMR studies validate the proposed 6-endo mechanism of the featured rearrangement, which under anhydrous conditions resulted in the formation of two bicyclic 1,3-dioxan-5-ones via an unprecedented intramolecular Prins cyclization.
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Affiliation(s)
- Juan A Faraldos
- Department of Chemistry, University of Illinois , Urbana-Champaign, Illinois 61801, United States
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42
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Guzyr OI, Zasukha SV, Vlasenko YG, Chernega AN, Rozhenko AB, Shermolovich YG. Simple Route to Adducts of (Amino)(aryl)carbene with Phosphorus Pentafluoride. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300563] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Shen X, Ni C, Hu J. Highly Stereoselective and One-Pot Synthesis of Tetra-substituted Monofluoroalkenes with Aldehydes and Fluorobis(phenylsulfonyl)methane. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201300365] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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44
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Lecea M, Grassin A, Ferreiro-Mederos L, Choppin S, Urbano A, Carreňo MC, Colobert F. One-Step Stereoselective Synthesis of Trisubstituted Monofluoroalkenes from 3,3,3-Trifluoropropionates. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300551] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Xue C, Jiang X, Fu C, Ma S. C–F bond formation with fluoride anions – highly selective iodofluorination of simple allenes. Chem Commun (Camb) 2013; 49:5651-3. [DOI: 10.1039/c3cc42014k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Abstract
A mild and efficient synthesis of 1-aryl-1-fluoroethenes from benzothiazolyl (aryl)fluoromethyl sulfones and paraformaldehyde, under DBU- or Cs(2)CO(3)-mediated conditions at room temperature, is described. A comparable diethyl fluoro(naphthalen-2-yl)methylphosphonate reagent does not react with paraformaldehyde under these mild conditions. The utility of the methodology for synthesis of terminal α-fluoroalkenes bearing electron-withdrawing functionalities is also shown.
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Affiliation(s)
- Samir K. Mandal
- Department of Chemistry, The City College and The City University of New York, New York, New York 10031-9198, U.S.A
| | - Arun K. Ghosh
- Department of Chemistry, The City College and The City University of New York, New York, New York 10031-9198, U.S.A
| | - Rakesh Kumar
- Department of Chemistry, The City College and The City University of New York, New York, New York 10031-9198, U.S.A
| | - Barbara Zajc
- Department of Chemistry, The City College and The City University of New York, New York, New York 10031-9198, U.S.A
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47
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Vega-Pérez JM, Periñán I, Vega-Holm M, Palo-Nieto C, Iglesias-Guerra F. New mannose-derived ketones as organocatalysts for enantioselective dioxirane-mediated epoxidation of arylalkenes. Part 3: Chiral ketones from sugars. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.07.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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48
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Rogers LR, Konstantinou Z, Reddy M, Organ MG. The Synthesis of Stereodefined Trisubstituted Olefins From Olefin Templates Using Pd Catalysis - Synthesis of the Antihypertensive Isbogrel. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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Shibatomi K, Narayama A, Soga Y, Muto T, Iwasa S. Enantioselective gem-chlorofluorination of active methylene compounds using a chiral spiro oxazoline ligand. Org Lett 2011; 13:2944-7. [PMID: 21553911 DOI: 10.1021/ol201007e] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Highly enantioselective gem-chlorofluorination of active methylene compounds was carried out by using a copper(II) complex of a chiral spiro pyridyl monooxazoline ligand. This reaction yielded α-chloro-α-fluoro-β-keto esters and α-chloro-α-fluoro-β-keto phosphonates with up to 92% ee. The resulting dihalo β-keto ester was converted into various α-fluoro-α-heteroatom-substituted carbonyl compounds via nucleophilic substitution without loss of optical purity. A fully protected β-amino acid with a gem-chlorofluoromethylene function was also synthesized.
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Affiliation(s)
- Kazutaka Shibatomi
- Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Japan.
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50
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Landelle G, Bergeron M, Turcotte-Savard MO, Paquin JF. Synthetic approaches to monofluoroalkenes. Chem Soc Rev 2011; 40:2867-908. [DOI: 10.1039/c0cs00201a] [Citation(s) in RCA: 243] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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