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Zhang YY, Zhang Y, Xue XS, Qing FL. Reversal of the Regioselectivity of Iron-Promoted Hydrogenation and Hydrohalogenation of gem-Difluoroalkenes. Angew Chem Int Ed Engl 2024; 63:e202406324. [PMID: 38637292 DOI: 10.1002/anie.202406324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 04/17/2024] [Indexed: 04/20/2024]
Abstract
The reaction regioselectivity of gem-difluoroalkenes is dependent on the intrinsic polarity. Thus, the reversal of the regioselectivity of the addition reaction of gem-difluoroalkenes remains a formidable challenge. Herein, we described an unprecedented reversal of regioselectivity of hydrogen atom transfer (HAT) to gem-difluoroalkenes triggered by Fe-H species for the formation of difluoroalkyl radicals. Hydrogenation of the in situ generated radicals gave difluoromethylated products. Mechanism experiments and theoretical studies revealed that the kinetic effect of the irreversible HAT process resulted in the reversal of the regioselectivity of this scenario, leading to the formation of a less stable α-difluoroalkyl radical regioisomer. On basis of this new reaction of gem-difluoroalkene, the iron-promoted hydrohalogenation of gem-difluoroalkenes for the efficient synthesis of aliphatic chlorodifluoromethyl-, bromodifluoromethyl- and iododifluoromethyl-containing compounds was developed. Particularly, this novel hydrohalogenation of gem-difluoroalkenes provided an effect and large-scale access to various iododifluoromethylated compounds of high value for synthetic application.
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Affiliation(s)
- Yu-Yang Zhang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
| | - Yuchen Zhang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
| | - Xiao-Song Xue
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
| | - Feng-Ling Qing
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
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2
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Yokawa A, Hatanaka M, Mikami K. Facile C−F Bond Activation Approach to FAMT‐Based Difluoromethyl‐BNCT Drug Candidates. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202000211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Akitaka Yokawa
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology, 2–12-1 Ookayama, Meguro Tokyo 152-8552 Japan
| | - Miho Hatanaka
- Nara Institute of Science and Technology Institute for Research Initiatives Division for Research Strategy Graduate School of Science and Technology, Data Science Center, 8916-5 Takayama-cho, Ikoma Nara 630-0192 Japan
| | - Koichi Mikami
- Department of Chemical Science and Engineering School of Materials and Chemical Technology Tokyo Institute of Technology, 2–12-1 Ookayama, Meguro Tokyo 152-8552 Japan
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3
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Zhang J, Zhao G. Enantioselective Mannich reaction of γ-malonate-substituted α,β-unsaturated esters with N-Boc imines catalyzed by chiral bifunctional thiourea-phosphonium salts. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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4
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Supranovich VI, Levin VV, Struchkova MI, Hu J, Dilman AD. Visible light-mediated difluoroalkylation of electron-deficient alkenes. Beilstein J Org Chem 2018; 14:1637-1641. [PMID: 30013689 PMCID: PMC6036985 DOI: 10.3762/bjoc.14.139] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/12/2018] [Indexed: 12/19/2022] Open
Abstract
A method for the reductive difluoroalkylation of electron-deficient alkenes using 1,1-difluorinated iodides mediated by irradiation with blue light is described. The reaction involves radical addition of 1,1-difluorinated radicals at the double bond followed by hydrogen atom transfer from sodium cyanoborohydride.
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Affiliation(s)
- Vyacheslav I Supranovich
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Marina I Struchkova
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - 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
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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5
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Punirun T, Soorukram D, Kuhakarn C, Reutrakul V, Pohmakotr M. Oxidative Difluoromethylation of Tetrahydroisoquinolines Using TMSCF 2SPh: Synthesis of Fluorinated Pyrrolo[2,1-a]isoquinolines and Benzo[a]quinolizidines. J Org Chem 2018; 83:765-782. [PMID: 29271203 DOI: 10.1021/acs.joc.7b02783] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An efficient C1-difluoromethylation of tetrahydroisoquinolenes was achieved using TMSCF2SPh as a difluoromethylating agent and 2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate (TEMPO+BF4-) as an oxidant. The process provides an access to a variety of C1-difluoro(phenylsulfanyl)methylated tetrahydroisoquinoline adducts in good yields. These adducts were employed as key precursors for preparing fluorinated pyrrolo[2,1-a]isoquinoline and benzo[a]quinolizidines.
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Affiliation(s)
- Teerachai Punirun
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry, Faculty of Science, Mahidol University , Rama VI Road, Bangkok 10400, Thailand
| | - Darunee Soorukram
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry, Faculty of Science, Mahidol University , Rama VI Road, Bangkok 10400, Thailand
| | - Chutima Kuhakarn
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry, Faculty of Science, Mahidol University , Rama VI Road, Bangkok 10400, Thailand
| | - Vichai Reutrakul
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry, Faculty of Science, Mahidol University , Rama VI Road, Bangkok 10400, Thailand
| | - Manat Pohmakotr
- Center of Excellence for Innovation in Chemistry (PERCH-CIC) and Department of Chemistry, Faculty of Science, Mahidol University , Rama VI Road, Bangkok 10400, Thailand
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6
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Ma X, Deng S, Song Q. Halodifluoroacetates as formylation reagents for various amines via unprecedented quadruple cleavage. Org Chem Front 2018. [DOI: 10.1039/c8qo00727f] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Unprecedented quadruple cleavage of halodifluoromethyl compounds has been disclosed for the first time, resulting in carbonyl synthons for reaction with various amines.
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Affiliation(s)
- Xingxing Ma
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Material Sciences Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Shuilin Deng
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Material Sciences Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Material Sciences Engineering at Huaqiao University
- Xiamen
- P. R. China
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7
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Ji X, Zhao X, Shi H, Cao S. HMPA-Promoted Siladifluoromethylation of Di-, and Triarylmethanes with the Ruppert-Prakash Reagent. Chem Asian J 2017; 12:2794-2798. [PMID: 28940982 DOI: 10.1002/asia.201701224] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/17/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Xinfei Ji
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy; East China University of Science and Technology (ECUST); Shanghai 200237 P.R. China
| | - Xianghu Zhao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy; East China University of Science and Technology (ECUST); Shanghai 200237 P.R. China
| | - Hongyan Shi
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy; East China University of Science and Technology (ECUST); Shanghai 200237 P.R. China
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy; East China University of Science and Technology (ECUST); Shanghai 200237 P.R. China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 P.R. China
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8
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Chen J, Huang D, Ding Y. C-N Bond Coupling of Fluorobenzenes: N-Heterocycle-Assisted Selective C-F Bond Cleavage through an Li/F Interaction. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700623] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jianping Chen
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road 214122 Wuxi Jiangsu Province China
| | - Dongyang Huang
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road 214122 Wuxi Jiangsu Province China
| | - Yuqiang Ding
- Key Laboratory of Synthetic and Biological Colloids; Ministry of Education, School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road 214122 Wuxi Jiangsu Province China
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9
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Chernov GN, Levin VV, Kokorekin VA, Struchkova MI, Dilman AD. Interaction of gem
-Difluorinated Iodides with Silyl Enol Ethers Mediated by Photoredox Catalysis. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700423] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Grigory N. Chernov
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
- Moscow State University; Department of Chemistry; 119991 Moscow Leninskie Gory 1-3 Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Vladimir A. Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
- I. M. Sechenov First Moscow State Medical University; 119991 Moscow Trubetskaya st. 8-2 Russian Federation
| | - Marina I. Struchkova
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
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10
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Ito S, Kato N, Mikami K. Stable (sila)difluoromethylboranes via C–F activation of fluoroform derivatives. Chem Commun (Camb) 2017; 53:5546-5548. [DOI: 10.1039/c7cc02327h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Lithium 1,3-bis(2,6-diisopropylphenyl)-2,3-dihydro-1H-1,3,2-diazaborol-2-uide activates the C–F linkage of CF3R (R = H, SiMe3) to provide difluoromethyl-substituted boranes as air-stable compounds.
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Affiliation(s)
- Shigekazu Ito
- Department of Chemical Science and Engineering
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Meguro
- Japan
| | - Naoto Kato
- Department of Chemical Science and Engineering
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Meguro
- Japan
| | - Koichi Mikami
- Department of Chemical Science and Engineering
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Meguro
- Japan
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11
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Tanaka J, Suzuki S, Tokunaga E, Haufe G, Shibata N. Asymmetrische Desymmetrisierung durch metallfreie C‐F‐Bindungsaktivierung: Synthese von 3,5‐Diaryl‐5‐fluormethyl‐oxazolidin‐2‐onen mit quartären Kohlenstoffzentren. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Junki Tanaka
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials Nagoya Institute of Technology Goiso, Showa-ku Nagoya 466-8555 Japan
| | - Satoru Suzuki
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials Nagoya Institute of Technology Goiso, Showa-ku Nagoya 466-8555 Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials Nagoya Institute of Technology Goiso, Showa-ku Nagoya 466-8555 Japan
| | - Günter Haufe
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Frontier Materials Nagoya Institute of Technology Goiso, Showa-ku Nagoya 466-8555 Japan
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12
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Tanaka J, Suzuki S, Tokunaga E, Haufe G, Shibata N. Asymmetric Desymmetrization via Metal‐Free C−F Bond Activation: Synthesis of 3,5‐Diaryl‐5‐fluoromethyloxazolidin‐2‐ones with Quaternary Carbon Centers. Angew Chem Int Ed Engl 2016; 55:9432-6. [DOI: 10.1002/anie.201603210] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Junki Tanaka
- Department of Nanopharmaceutical Sciences and Department of Frontier Materials Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Satoru Suzuki
- Department of Nanopharmaceutical Sciences and Department of Frontier Materials Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences and Department of Frontier Materials Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Günter Haufe
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster 48149 Münster Germany
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences and Department of Frontier Materials Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
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13
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Honda K, Harris TV, Hatanaka M, Morokuma K, Mikami K. Computational S
N
2‐Type Mechanism for the Difluoromethylation of Lithium Enolate with Fluoroform through Bimetallic C−F Bond Dual Activation. Chemistry 2016; 22:8796-800. [DOI: 10.1002/chem.201601090] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Kazuya Honda
- Department of Applied Chemistry Tokyo Institute of Technology Tokyo 152-8552 Japan
| | - Travis V. Harris
- Fukui Institute for Fundamental Chemistry Kyoto University Kyoto 606-8103 Japan
- Department of Chemistry University of Puget Sound Tacoma Washington 98416 USA
| | - Miho Hatanaka
- Fukui Institute for Fundamental Chemistry Kyoto University Kyoto 606-8103 Japan
- Department of Chemistry Faculty of Science and Engineering Kinki University Osaka 577-8502 Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry Kyoto University Kyoto 606-8103 Japan
| | - Koichi Mikami
- Department of Applied Chemistry Tokyo Institute of Technology Tokyo 152-8552 Japan
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14
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Shen Q, Huang YG, Liu C, Xiao JC, Chen QY, Guo Y. Review of recent advances in CF bond activation of aliphatic fluorides. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.07.007] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Li L, Miao H, Ding Y. Iridium and phosphine promoted C–F bond activation: the C–S cross-coupling of aryl fluorides with diaryl disulfides to synthesize thioethers. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.133] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Kuninobu Y, Nagase M, Kanai M. Benzylic C(sp3)H Perfluoroalkylation of Six-Membered Heteroaromatic Compounds. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505335] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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17
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Kuninobu Y, Nagase M, Kanai M. Benzylic C(sp3)H Perfluoroalkylation of Six-Membered Heteroaromatic Compounds. Angew Chem Int Ed Engl 2015; 54:10263-6. [DOI: 10.1002/anie.201505335] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/08/2015] [Indexed: 01/01/2023]
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18
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Yoshioka E, Kohtani S, Tanaka E, Hata Y, Miyabe H. Carbon radical addition–cyclization reaction induced by ruthenium-photocatalyst under visible light irradiation. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.12.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Nenajdenko VG, Muzalevskiy VM, Shastin AV. Polyfluorinated ethanes as versatile fluorinated C2-building blocks for organic synthesis. Chem Rev 2015; 115:973-1050. [PMID: 25594605 DOI: 10.1021/cr500465n] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Valentine G Nenajdenko
- Department of Chemistry, Moscow State University , Leninskie Gory, Moscow 119992, Russia
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20
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Träff AM, Janjetovic M, Hilmersson G. C–F bond substitution via aziridinium ion intermediates. Chem Commun (Camb) 2015. [DOI: 10.1039/c5cc04723d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and distinct methodology for instantaneous β-amino fluoride substitution mediated by La[N(SiMe3)2]3 has been developed. The reaction proceeds via a reactive aziridinium ion intermediate, which readily reacts with various nucleophiles. This allows the use of fluorine as a modular functionality and further expands the role of aziridinium ions in organic synthesis.
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Affiliation(s)
- A. M. Träff
- Department of Chemistry and Molecular Biology
- University of Gothenburg
- Gothenburg
- Sweden
| | - M. Janjetovic
- Department of Chemistry and Molecular Biology
- University of Gothenburg
- Gothenburg
- Sweden
| | - G. Hilmersson
- Department of Chemistry and Molecular Biology
- University of Gothenburg
- Gothenburg
- Sweden
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21
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Chen J, Zhao K, Ge B, Xu C, Wang D, Ding Y. Iridium-Catalyzed Synthesis of Diaryl Ethers by Means of Chemoselective CF Bond Activation and the Formation of BF Bonds. Chem Asian J 2014; 10:468-73. [DOI: 10.1002/asia.201403130] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Indexed: 11/07/2022]
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22
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Hashimoto R, Iida T, Aikawa K, Ito S, Mikami K. Direct α-Siladifluoromethylation of Lithium Enolates with Ruppert-Prakash Reagent via CF Bond Activation. Chemistry 2014; 20:2750-4. [DOI: 10.1002/chem.201304473] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 12/02/2013] [Indexed: 11/11/2022]
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23
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Mikami K, Tomita Y, Iida T, Hashimoto R, Itoh Y. No Catalyst, Radical Initiator and Photochemical Irradiation Approach to Direct α-Trifluoromethylation of Lithium Enolates. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)95] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Träff AM, Janjetovic M, Ta L, Hilmersson G. Selective CF Bond Activation: Substitution of Unactivated Alkyl Fluorides using YbI3. Angew Chem Int Ed Engl 2013; 52:12073-6. [DOI: 10.1002/anie.201306104] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Indexed: 11/11/2022]
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25
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Träff AM, Janjetovic M, Ta L, Hilmersson G. Selective CF Bond Activation: Substitution of Unactivated Alkyl Fluorides using YbI3. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306104] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Liang T, Neumann CN, Ritter T. Introduction of fluorine and fluorine-containing functional groups. Angew Chem Int Ed Engl 2013; 52:8214-64. [PMID: 23873766 DOI: 10.1002/anie.201206566] [Citation(s) in RCA: 1965] [Impact Index Per Article: 178.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Indexed: 01/20/2023]
Abstract
Over the past decade, the most significant, conceptual advances in the field of fluorination were enabled most prominently by organo- and transition-metal catalysis. The most challenging transformation remains the formation of the parent C-F bond, primarily as a consequence of the high hydration energy of fluoride, strong metal-fluorine bonds, and highly polarized bonds to fluorine. Most fluorination reactions still lack generality, predictability, and cost-efficiency. Despite all current limitations, modern fluorination methods have made fluorinated molecules more readily available than ever before and have begun to have an impact on research areas that do not require large amounts of material, such as drug discovery and positron emission tomography. This Review gives a brief summary of conventional fluorination reactions, including those reactions that introduce fluorinated functional groups, and focuses on modern developments in the field.
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Affiliation(s)
- Theresa Liang
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
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27
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28
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Liu YL, Yu JS, Zhou J. Catalytic Asymmetric Construction of Stereogenic Carbon Centers that Feature agem-Difluoroalkyl Group. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201200131] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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Levin VV, Zemtsov AA, Struchkova MI, Dilman AD. Reactions of Difluorocarbene with Organozinc Reagents. Org Lett 2013; 15:917-9. [DOI: 10.1021/ol400122k] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Artem A. Zemtsov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Marina I. Struchkova
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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30
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Haufe G, Suzuki S, Yasui H, Terada C, Kitayama T, Shiro M, Shibata N. CF Bond Activation of Unactivated Aliphatic Fluorides: Synthesis of Fluoromethyl-3,5-diaryl-2-oxazolidinones by Desymmetrization of 2-Aryl-1,3-difluoropropan-2-ols. Angew Chem Int Ed Engl 2012; 51:12275-9. [DOI: 10.1002/anie.201207304] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Indexed: 01/01/2023]
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31
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Haufe G, Suzuki S, Yasui H, Terada C, Kitayama T, Shiro M, Shibata N. CF Bond Activation of Unactivated Aliphatic Fluorides: Synthesis of Fluoromethyl-3,5-diaryl-2-oxazolidinones by Desymmetrization of 2-Aryl-1,3-difluoropropan-2-ols. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207304] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Umpolung of Fluoroform by CF Bond Activation: Direct Difluoromethylation of Lithium Enolates. Angew Chem Int Ed Engl 2012; 51:9535-8. [DOI: 10.1002/anie.201203588] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 07/04/2012] [Indexed: 11/07/2022]
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33
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Iida T, Hashimoto R, Aikawa K, Ito S, Mikami K. Umpolung of Fluoroform by CF Bond Activation: Direct Difluoromethylation of Lithium Enolates. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201203588] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Patil M, Thiel W. Origin of Selectivity of Tsuji-Trost Allylic Alkylation of Lactones: Highly Ordered Transition States with Lithium-Containing Enolates. Chemistry 2012; 18:10408-18. [DOI: 10.1002/chem.201201267] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Indexed: 11/11/2022]
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35
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Herrmann AT, Smith LL, Zakarian A. A simple method for asymmetric trifluoromethylation of N-acyl oxazolidinones via Ru-catalyzed radical addition to zirconium enolates. J Am Chem Soc 2012; 134:6976-9. [PMID: 22486383 DOI: 10.1021/ja302552e] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A Ru-catalyzed direct thermal trifluoromethylation and perfluoroalkylation of N-acyloxazolidinones has been developed. The reaction is experimentally simple and requires inexpensive reagents while providing good yields of products with good levels of stereocontrol. Preliminary studies have shown notable compatibility with functional groups, aromatics, and certain heteroaromatic substituents. The described method provides a useful alternative for the synthesis of fluorinated materials in an experimentally convenient manner.
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Affiliation(s)
- Aaron T Herrmann
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, USA
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36
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Zhao Y, Gao B, Hu J. From Olefination to Alkylation: In-Situ Halogenation of Julia–Kocienski Intermediates Leading to Formal Nucleophilic Iodo- and Bromodifluoromethylation of Carbonyl Compounds. J Am Chem Soc 2012; 134:5790-3. [DOI: 10.1021/ja301601b] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yanchuan Zhao
- Key Laboratory
of Organofluorine Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Bing Gao
- Key Laboratory
of Organofluorine Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jinbo Hu
- Key Laboratory
of Organofluorine Chemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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37
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Erdbrink H, Peuser I, Gerling UIM, Lentz D, Koksch B, Czekelius C. Conjugate hydrotrifluoromethylation of α,β-unsaturated acyl-oxazolidinones: synthesis of chiral fluorinated amino acids. Org Biomol Chem 2012; 10:8583-6. [PMID: 23042408 DOI: 10.1039/c2ob26810h] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Holger Erdbrink
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, D-14195 Berlin, Germany
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38
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Meletis P, Patil M, Thiel W, Frank W, Braun M. Enantioselective and diastereoselective Tsuji-Trost allylic alkylation of lactones: an experimental and computational study. Chemistry 2011; 17:11243-9. [PMID: 21922557 DOI: 10.1002/chem.201101406] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Indexed: 11/09/2022]
Abstract
The Tsuji-Trost protocol has been successfully employed for the allylic alkylation of preformed lactone enolates. It has been demonstrated that this Pd-catalyzed reaction can be carried out in an enantio- and diastereoselective manner. The use of additives, such as LiCl, was found to be crucial for reaching high levels of product selectivity. For one particular pair of reactants, density functional theory was used to investigate the mechanism of the nucleophilic addition. Among the five pathways considered, the reaction between an (allyl)Pd(BINAP) complex and a LiCl-lithium enolate adduct is predicted to be the most likely route for C-C bond formation. LiCl plays a key role as the connecting link between the noble metal and the enolate in the kinetically favored transition state. The computed diastereoselectivity ratio is in good agreement with the experimentally observed value.
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Affiliation(s)
- Panos Meletis
- Institut für Organische Chemie und Makromolekulare Chemie, Universität Düsseldorf, 40225 Düsseldorf, Germany
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39
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Amatov T, Jahn U. Perhaloalkylation of Metal Enolates-Unconventional and Versatile. Angew Chem Int Ed Engl 2011; 50:4542-4. [DOI: 10.1002/anie.201007672] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Indexed: 11/06/2022]
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40
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Amatov T, Jahn U. Perhalogenalkylierung von Metallenolaten - unkonventionell und vielseitig. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007672] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Hatano M, Horibe T, Ishihara K. Magnesium(II)-binaphtholate as a practical chiral catalyst for the enantioselective direct Mannich-type reaction with malonates. Org Lett 2010; 12:3502-5. [PMID: 20608665 DOI: 10.1021/ol101353r] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly enantioselective direct Mannich-type reaction of aldimines with dialkyl malonates was developed with the use of a Mg(II)-BINOLate salt, which was designed as a cooperative acid-base catalyst that can activate both aldimines and malonates. Optically active beta-aminoesters and alpha-halo-beta-aminoesters could be synthesized in high yields and with high enantioselectivities. This inexpensive and practical Mg(II)-BINOLate salt could be used in gram-scale catalysis.
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Affiliation(s)
- Manabu Hatano
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya, 464-8603, Japan
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