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Sušanj R, Nemec V, Bedeković N, Cinčić D. Halogen Bond Motifs in Cocrystals of N, N, O and N, O, O Acceptors Derived from Diketones and Containing a Morpholine or Piperazine Moiety. CRYSTAL GROWTH & DESIGN 2022; 22:5135-5142. [PMID: 36097548 PMCID: PMC9461725 DOI: 10.1021/acs.cgd.2c00665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/26/2022] [Indexed: 06/15/2023]
Abstract
In this study, we investigate the halogen bond acceptor potential of oxygen and nitrogen atoms of morpholine and piperazine fragments when they are peripherally located on N,O,O or N,N,O acceptor molecules. We synthesized four acceptor molecules derived from either acetylacetone or benzoylacetone and cocrystallized them with 1,4-diiodotetrafluorobenzene and 1,3,5-triiodotrifluorobenzene. This resulted in eight cocrystals featuring different topicities and geometric dispositions of donor atoms. In all cocrystals, halogen bonds are formed with either the morpholinyl oxygen atom or the terminal piperazine nitrogen atom. The I···Omorpholine halogen bonds feature lower relative shortening values than I···Nterminal, I···Ocarbonyl, and I···Nproximal halogen bonds. The N and O halogen bond acceptor sites were evaluated through calculations of molecular electrostatic potential values.
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2
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Indium-mediated 1,2-addition of iododifluoromethyl ketones with α, β-unsaturated ketones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Peng Q, Yan B, Li F, Lang M, Zhang B, Guo D, Bierer D, Wang J. Biomimetic enantioselective synthesis of β,β-difluoro-α-amino acid derivatives. Commun Chem 2021; 4:148. [PMID: 36697625 PMCID: PMC9814941 DOI: 10.1038/s42004-021-00586-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/06/2021] [Indexed: 01/28/2023] Open
Abstract
Although utilization of fluorine compounds has a long history, synthesis of chiral fluorinated amino acid derivatives with structural diversity and high stereoselectivity is still very appealing and challenging. Here, we report a biomimetic study of enantioselective [1,3]-proton shift of β,β-difluoro-α-imine amides catalyzed by chiral quinine derivatives. A wide range of corresponding β,β-difluoro-α-amino amides were achieved in good yields with high enantioselectivities. The optically pure β,β-difluoro-α-amino acid derivatives were further obtained, which have high application values in the synthesis of fluoro peptides, fluoro amino alcohols and other valuable fluorine-containing molecules.
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Affiliation(s)
- Qiupeng Peng
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Department of Chemistry, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, 100084 Beijing, China
| | - Bingjia Yan
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Department of Chemistry, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, 100084 Beijing, China ,grid.418832.40000 0001 0610 524XPresent Address: Leibniz-Forchungsinstituts für Molekulare Pharmakologies (FMP), 13125 Berlin, Germany
| | - Fangyi Li
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Department of Chemistry, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, 100084 Beijing, China
| | - Ming Lang
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Department of Chemistry, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, 100084 Beijing, China
| | - Bei Zhang
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Department of Chemistry, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, 100084 Beijing, China
| | - Donghui Guo
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Department of Chemistry, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, 100084 Beijing, China
| | - Donald Bierer
- grid.420044.60000 0004 0374 4101Department of Medicinal Chemistry, Bayer AG, Aprather Weg 18A, 42096 Wuppertal, Germany
| | - Jian Wang
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Department of Chemistry, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, 100084 Beijing, China
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4
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Yamamoto Y, Kuroyanagi E, Suzuki H, Yasui T. Catalyst‐Free C
sp
−C
sp
3
Cross‐Coupling of Bromodifluoroacetamides with 1‐Iodoalkynes under Visible‐Light Irradiation. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences Graduate School of Pharmaceutical Sciences Nagoya University, Chikusa Nagoya 464-8601 Japan
| | - Eisuke Kuroyanagi
- Department of Basic Medicinal Sciences Graduate School of Pharmaceutical Sciences Nagoya University, Chikusa Nagoya 464-8601 Japan
| | - Harufumi Suzuki
- Department of Basic Medicinal Sciences Graduate School of Pharmaceutical Sciences Nagoya University, Chikusa Nagoya 464-8601 Japan
| | - Takeshi Yasui
- Department of Basic Medicinal Sciences Graduate School of Pharmaceutical Sciences Nagoya University, Chikusa Nagoya 464-8601 Japan
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5
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Zhu X, Huang Y, Xu X, Qing F. Iron-catalyzed cyanoalkylation of difluoroenol silyl ethers with cyclobutanone oxime esters. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.07.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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6
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Tian YP, Gong Y, Hu XS, Yu JS, Zhou Y, Zhou J. HClO4 catalysed aldol-type reaction of fluorinated silyl enol ethers with acetals or ketals toward fluoroalkyl ethers. Org Biomol Chem 2019; 17:9430-9434. [DOI: 10.1039/c9ob02129a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient metal-free catalytic aldol-type reaction of fluorinated enol silyl ethers and acetals/ketals toward functionalized fluoroalkyl ethers is developed by using less than 1.0 mol% HClO4 (70 wt%, aq.).
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Affiliation(s)
- You-Ping Tian
- College of Pharmacy
- Guizhou University of Traditional Chinese Medicine
- Guiyang 550025
- China
| | - Yi Gong
- College of Pharmacy
- Guizhou University of Traditional Chinese Medicine
- Guiyang 550025
- China
| | - Xiao-Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
| | - Ying Zhou
- College of Pharmacy
- Guizhou University of Traditional Chinese Medicine
- Guiyang 550025
- China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
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Hu XS, Ding PG, Yu JS, Zhou J. A Sc(OTf)3 catalyzed Mukaiyama–Mannich reaction of difluoroenoxysilanes with unactivated ketimines. Org Chem Front 2019. [DOI: 10.1039/c9qo00577c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first example of a Mukaiyama–Mannich reaction of difluoroenoxysilanes with unactivated ketimines catalyzed by Sc(OTf)3 is described.
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Affiliation(s)
- Xiao-Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
| | - Pei-Gang Ding
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
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Hu XS, Yu JS, Zhou J. Catalytic selective mono- and difluoroalkylation using fluorinated silyl enol ethers. Chem Commun (Camb) 2019; 55:13638-13648. [DOI: 10.1039/c9cc07677h] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This feature article highlights our recent achievements in catalytic selective mono- and difluoroalkylation using fluorinated silyl enol ethers (FSEEs).
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Affiliation(s)
- Xiao-Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- P. R. China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
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Hua MQ, Mou FY, Wang NH, Chen Y, Xiong HY, Huang Y, Lei CL, Zhang Q. Visible-light-induced photocatalytic difluoroalkylation of 3-substituted benzo[d]isoxazoles via direct and regioselective C H functionalization. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jaroschik F. Picking One out of Three: Selective Single C-F Activation in Trifluoromethyl Groups. Chemistry 2018; 24:14572-14582. [PMID: 29923644 DOI: 10.1002/chem.201801702] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/03/2018] [Indexed: 01/01/2023]
Abstract
The introduction of a trifluoromethyl (CF3 ) group into an organic molecule can modify its chemical behavior and lead to changes in its physicochemical and pharmacological properties. The CF3 group is often chosen for its chemical inertness and stability, which are related to the strong C-F bonds. In recent years, the potential of gaining straightforward access to difluorinated compounds through selective single C-F activation in CF3 groups has been unveiled. This review describes the latest methodologies for the synthesis of difluoromethylated arenes, difluoroalkenes and difluorinated aldol products of potential synthetic and/or biological interest, employing low-valent metals, transition metal catalysis, FLP and Lewis acid mediated transformations as well as photoredox catalysis.
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Affiliation(s)
- Florian Jaroschik
- Institut Charles Gerhardt Montpellier UMR 5253, Ecole Nationale Supérieure de Chimie de Montpellier, 240 avenue du Prof Jeanbrau, 34080, Montpellier, France
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Affiliation(s)
- Graham Pattison
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry UK
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12
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Ricucci A, Rodriguez J, Quintard A. Organo- and Copper-Multi-Catalyzed Pseudo Four-Component Access to gem
-Difluorohydrins. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701459] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Angela Ricucci
- CNRS, Centrale Marseille, iSm2; Aix Marseille Université; 13397 Marseille France
| | - Jean Rodriguez
- CNRS, Centrale Marseille, iSm2; Aix Marseille Université; 13397 Marseille France
| | - Adrien Quintard
- CNRS, Centrale Marseille, iSm2; Aix Marseille Université; 13397 Marseille France
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Yang X, Zhang F, Zhou Y, Huang YY. Neighboring phenolic group-activated gem-difluoroallylboration of imines for the catalyst-free synthesis of gem-difluorohomoallylamines. Org Biomol Chem 2018; 16:3367-3371. [DOI: 10.1039/c8ob00541a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An unprecedented imine allylation with pinacol gem-difluoroallylborates for the synthesis of a wide range of racemic gem-difluorohomoallylamine derivatives under catalyst-free conditions was enabled by a neighboring phenolic group in an N-protecting group.
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Affiliation(s)
- Xing Yang
- Department of Chemistry
- School of Chemistry
- Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan 430070
| | - Feng Zhang
- College of Science
- Hunan Agricultural University
- Changsha 410128
- P. R. China
| | - Yang Zhou
- Department of Chemistry
- School of Chemistry
- Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan 430070
| | - Yi-Yong Huang
- Department of Chemistry
- School of Chemistry
- Chemical Engineering and Life Science
- Wuhan University of Technology
- Wuhan 430070
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A general and efficient Lewis acid catalysed Mukaiyama-aldol reaction of difluoroenoxysilanes and ketones. Sci Bull (Beijing) 2017; 62:1504-1509. [PMID: 36659427 DOI: 10.1016/j.scib.2017.10.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/30/2017] [Accepted: 10/09/2017] [Indexed: 01/21/2023]
Abstract
We report a general and highly efficient Mukaiyama-aldol reaction of ketones and difluoroenoxysilanes. While the reaction of aryl ketones worked efficiently in the presence of Bi(OTf)3, that of aliphatic ketones required the use of Sc(OTf)3. In addition, Sc(OTf)3 was capable of achieving excellent 1,2-selectivity in the corresponding reaction of α,β-unsaturated ketones. This method provides a facile access to differently substituted β-hydroxy α,α-difluoro ketones, versatile synthons for difluomethylated tertiary alcohols.
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