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Mido T, Iitsuka H, Kobayashi M, Noguchi K, Yonezawa N, Okamoto A. Fluoro Group Pivoting Dual Hydrogen Bonding Intramolecular Bridge for 1,2-Bis(2-fluorophenyl)acenaphthenediol Molecule in Solution: NMR Spectrometrical Confirmation of Simultaneous Participation of F–C(sp 2) Group to Through-space-couplings with Aromatic and Hydroxy Hydrogen Atoms. CHEM LETT 2020. [DOI: 10.1246/cl.190903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Takahiro Mido
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Hiroaki Iitsuka
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Miyuki Kobayashi
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Keiichi Noguchi
- Instrumentation Analysis Center, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Noriyuki Yonezawa
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
| | - Akiko Okamoto
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan
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Quiquempoix L, Bogdan E, Wells NJ, Le Questel JY, Graton J, Linclau B. A Study of Intramolecular Hydrogen Bonding in Levoglucosan Derivatives. Molecules 2017; 22:E518. [PMID: 28338623 PMCID: PMC6154293 DOI: 10.3390/molecules22040518] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/09/2017] [Accepted: 03/21/2017] [Indexed: 11/17/2022] Open
Abstract
Organofluorine is a weak hydrogen-bond (HB) acceptor. Bernet et al. have demonstrated its capability to perturb OH···O intramolecular hydrogen bonds (IMHBs), using conformationally rigid carbohydrate scaffolds including levoglucosan derivatives. These investigations are supplemented here by experimental and theoretical studies involving six new levoglucosan derivatives, and complement the findings of Bernet et al. However, it is shown that conformational analysis is instrumental in interpreting the experimental data, due to the occurrence of non-intramolecular hydrogen-bonded populations which, although minor, cannot be neglected and appears surprisingly significant. The DFT conformational analysis, together with the computation of NMR parameters (coupling constants and chemical shifts) and wavefunction analyses (AIM, NBO), provides a full picture. Thus, for all compounds, the most stabilized structures show the OH groups in a conformation allowing IMHB with O5 and O6, when possible. Furthermore, the combined approach points out the occurrence of various IMHBs and the effect of the chemical modulations on their features. Thus, two-center or three-center IMHB interactions are observed in these compounds, depending on the presence or absence of additional HB acceptors, such as methoxy or fluorine.
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Affiliation(s)
- Lucas Quiquempoix
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
| | - Elena Bogdan
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière-BP 92208, 44322 Nantes CEDEX 3, France.
| | - Neil J Wells
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
| | - Jean-Yves Le Questel
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière-BP 92208, 44322 Nantes CEDEX 3, France.
| | - Jérôme Graton
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes, 2 rue de la Houssinière-BP 92208, 44322 Nantes CEDEX 3, France.
| | - Bruno Linclau
- Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
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de Melo UZ, Silva RGM, Yamazaki DAS, Pontes RM, Gauze GF, Rosa FA, Rittner R, Basso EA. NMR spectroscopy and theoretical calculations in the conformational analysis of 1-methylpyrrolidin-2-one 3-halo-derivatives. J Phys Chem A 2015; 119:2111-21. [PMID: 25679501 DOI: 10.1021/jp512378g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study reports the results of ab initio and density functional theory (DFT) electronic structure calculations as well as (3)J(HH) experimental and calculated coupling constant data obtained in the investigation of the conformational equilibrium of 3-halo-derivatives of 1-methylpyrrolidin-2-one. The five-membered ring assumes an envelope conformation owing to the plane of formation of the O═C-N-R bond, with C4 forming the "envelope lid". When the conformation changes, the "lid" alternates between positions above and below the amide plane. The α-carbonyl halogen assumes two positions: a pseudo-axial and a pseudo-equatorial. In the gaseous phase, the calculations indicate that the pseudo-axial conformer is more stable and preferable going down the halogen family. Natural bond orbital analysis showed that electronic delocalization is significant only for the iodo derivative. In the other derivatives, the electrostatic repulsion between oxygen and the halogen determines the conformational equilibrium. When the solvated molecule was taken into account, the pseudo-equatorial conformer population increased with the relative permittivity of the solvent. This variation was strong in the fluoro derivative, and the preference was inverted. In the chlorine derivative, the two populations became closer in methanol and acetonitrile. In the bromine and iodine derivatives, the percentage of pseudo-equatorial conformer increased only slightly owing to the dipole moment of the conformation: the pseudo-equatorial conformation has a greater dipole moment and thus is stable in media with high relative permittivity.
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Affiliation(s)
- Ulisses Zonta de Melo
- Chemistry Department, State University of Maringa , Avenida Colombo, 5790, 87020-900, Maringa, Paraná, Brazil
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Giuffredi GT, Gouverneur V, Bernet B. Intramolecular OH⋅⋅⋅FC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF2. Angew Chem Int Ed Engl 2013; 52:10524-8. [DOI: 10.1002/anie.201303766] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 07/11/2013] [Indexed: 11/08/2022]
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6
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Intramolecular OH⋅⋅⋅FC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF2. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303766] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Lübke M, Jung M, Haufe G. New histone deacetylase inhibitors based on 4-fluoro-2-amino acid esters: Synthesis and activity. J Fluor Chem 2013. [DOI: 10.1016/j.jfluchem.2013.03.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Affiliation(s)
- Robert E. Rosenberg
- Department of Chemistry, Transylvania University, 300 North Broadway, Lexington, Kentucky
40508, United States
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Graton J, Wang Z, Brossard AM, Gonçalves Monteiro D, Le Questel JY, Linclau B. An unexpected and significantly lower hydrogen-bond-donating capacity of fluorohydrins compared to nonfluorinated alcohols. Angew Chem Int Ed Engl 2012; 51:6176-80. [PMID: 22577052 PMCID: PMC3601419 DOI: 10.1002/anie.201202059] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Indexed: 11/08/2022]
Affiliation(s)
- Jérôme Graton
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes2, rue de la Houssinière – BP 92208, 44322 NANTES Cedex 3 (France)
| | - Zhong Wang
- Chemistry, University of SouthamptonHighfield, Southampton SO17 1BJ (UK)
| | - Anne-Marie Brossard
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes2, rue de la Houssinière – BP 92208, 44322 NANTES Cedex 3 (France)
| | | | - Jean-Yves Le Questel
- CEISAM UMR CNRS 6230, Faculté des Sciences et des Techniques, Université de Nantes2, rue de la Houssinière – BP 92208, 44322 NANTES Cedex 3 (France)
| | - Bruno Linclau
- Chemistry, University of SouthamptonHighfield, Southampton SO17 1BJ (UK)
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Graton J, Wang Z, Brossard AM, Gonçalves Monteiro D, Le Questel JY, Linclau B. An Unexpected and Significantly Lower Hydrogen-Bond-Donating Capacity of Fluorohydrins Compared to Nonfluorinated Alcohols. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201202059] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Giuffredi GT, Jennings LE, Bernet B, Gouverneur V. Facile synthesis of 4-deoxy-4-fluoro-α-d-talopyranoside, 4-deoxy-4-fluoro-α-d-idopyranoside and 2,4-dideoxy-2,4-difluoro-α-d-talopyranoside. J Fluor Chem 2011. [DOI: 10.1016/j.jfluchem.2011.05.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Scerba MT, Leavitt CM, Diener ME, DeBlase AF, Guasco TL, Siegler MA, Bair N, Johnson MA, Lectka T. NH+–F Hydrogen Bonding in a Fluorinated “Proton Sponge” Derivative: Integration of Solution, Solid-State, Gas-Phase, and Computational Studies. J Org Chem 2011; 76:7975-84. [DOI: 10.1021/jo2015328] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Michael T. Scerba
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Christopher M. Leavitt
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Matthew E. Diener
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Andrew F. DeBlase
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Timothy L. Guasco
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Maxime A. Siegler
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Nathaniel Bair
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Mark A. Johnson
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Thomas Lectka
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
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Giuffredi GT, Bernet B, Gouverneur V. De Novo Synthesis of Racemic 4-Deoxy-4,4-difluoro- and 2,4-Dideoxy-2,4,4-trifluorohexosides. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100565] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Linclau B, Golten S, Light M, Sebban M, Oulyadi H. The conformation of tetrafluorinated methyl galactoside anomers: crystallographic and NMR studies. Carbohydr Res 2011; 346:1129-39. [PMID: 21531398 DOI: 10.1016/j.carres.2011.04.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 03/27/2011] [Accepted: 04/03/2011] [Indexed: 10/18/2022]
Abstract
The first single-crystal X-ray diffraction study of tetrafluorinated monosaccharide derivatives is presented. Both α- and β-methyl 2,3-dideoxy-2,2,3,3-tetrafluoro-d-galactopyranoside anomers adopt the (4)C(1) conformation. The values for the C1-O1 and C1-O5 bond lengths and the O5-C1-O1-CH(3) dihedral angles are in line with what can be expected from the anomeric and exo-anomeric effects. The chair conformations are slightly distorted, presumably due to repulsion between 1,3-diaxial C-O and C-F bonds. The asymmetric unit of both compounds contains up to three independent molecules, which differ in the conformation of the hydroxymethyl group (including in one case a 'forbidden'gg rotamer). The molecular packing of the β-anomer shows a clear segregation between fluorinated and hydrophilic domains, while for the α-anomer the regions of fluorine segregation are broken by interleafing of OMe groups. There is one close OH⋯F contact, which is likely to arise from the crystal packing. NMR studies show that the two anomers also adopt a (4)C(1) conformation in solution (D(2)O, CDCl(3)).
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Affiliation(s)
- Bruno Linclau
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom.
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Anzahaee MY, Watts JK, Alla NR, Nicholson AW, Damha MJ. Energetically important C-H···F-C pseudohydrogen bonding in water: evidence and application to rational design of oligonucleotides with high binding affinity. J Am Chem Soc 2010; 133:728-31. [PMID: 21171597 DOI: 10.1021/ja109817p] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
It is controversial whether organic fluorine can form energetically important hydrogen bonds in aqueous environments. We previously showed by NMR and molecular modeling that the unexpectedly high binding affinity of 2'F-ANA is largely due to a C-H···F-C pseudohydrogen bond at pyrimidine-purine steps. Comparisons of the melting of duplexes with identical sequence composition but a rearranged sequence confirm that energetically important fluorine-mediated pseudohydrogen bonding is in operation in these sequences. The effect is of particular importance when the H-bond donor (purine H8) is activated by the presence of fluorine at its own 2'-position. These results provide a rational method to increase the binding affinity of antisense oligonucleotides by placement of 2'F-ANA modifications at pyrimidine-purine steps.
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Affiliation(s)
- Maryam Yahyaee Anzahaee
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, Canada H3A 2K6
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Takemura H, Kaneko M, Sako K, Iwanaga T. The intramolecular C–F⋯HO hydrogen bond of 2-fluorophenyldiphenylmethanol. NEW J CHEM 2009. [DOI: 10.1039/b902203a] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bernet B, Vasella A. Hydrogen Bonding of Fluorinated Saccharides in Solution: F Acting as H-Bond Acceptor in a Bifurcated H-Bond of 4-Fluorinated Levoglucosans. Helv Chim Acta 2007. [DOI: 10.1002/hlca.200790196] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Syntheses and crystal structures of di- and triorganotin(IV) derivatives with 2,4,5-trifluoro-3-methoxybenzoic acid. Polyhedron 2006. [DOI: 10.1016/j.poly.2006.06.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Schwesinger R, Link R, Wenzl P, Kossek S. Anhydrous Phosphazenium Fluorides as Sources for Extremely Reactive Fluoride Ions in Solution. Chemistry 2006; 12:438-45. [PMID: 16196062 DOI: 10.1002/chem.200500838] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Several peralkylated polyaminophosphazenium cations were evaluated for the generation of novel anhydrous F- salts. Two of them have been characterized by X-ray analysis and are particularly soluble, even in apolar aprotic solvents like benzene or THF, one of them even at -30 degrees C. Such solutions probably represent the most basic metal-free and stable media known to date. Comparison of these fluorides with known F- sources demonstrates that they are of unprecedented reactivity and selectivity in E2 elimination reactions.
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Affiliation(s)
- Reinhard Schwesinger
- Chemisches Laboratorium, Institut für Organische Chemie und Biochemie der Universität, Freiburg, Albertstrasse 21, 79104 Freiburg, Germany.
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Chen X, Wiehle S, Chi L, Mück-Lichtenfeld C, Rudert R, Vollhardt D, Fuchs H, Haufe G. Phase behavior of 2,3-disubstituted methyl octadecanoate monolayers at the air-water interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:3376-3383. [PMID: 15807576 DOI: 10.1021/la0470479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The phase behavior of 2,3-disubstituted methyl octadecanoate monolayers at the air-water interface is studied by film balance and a Brewster angle microscope (BAM). The comparison of the surface pressure-molecular area (pi-A) isotherms with the corresponding BAM images provides information on the phase behavior of the monolayers. Variations in the phase behavior of different 2,3-disubstituted methyl octadecanoate monolayers can be correlated with the size of the headgroups, the interactions between the polar molecular moieties and the subphase, and the intermolecular interactions. The enlarging of the headgroups makes forming a condensed monolayer difficult for the molecules, even after introduction of substituents giving rise to the formation of hydrogen bonds between the molecules, which may balance the steric repulsion and stabilize the monolayers. Model calculations of the two-dimensional lattice structure of the 2,3-disubstituted methyl octadecanoates on basis of the pg and p1 space group are performed and correspond well with the experimental results.
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Affiliation(s)
- Xiaodong Chen
- Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany
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Chelation controlled regiospecific O-substitution of myo-inositol orthoesters: convenient access to orthogonally protected myo-inositol derivatives. Tetrahedron 2005. [DOI: 10.1016/j.tet.2004.11.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sureshan KM, Shashidhar MS, Praveen T, Das T. Regioselective Protection and Deprotection of Inositol Hydroxyl Groups. Chem Rev 2003; 103:4477-503. [PMID: 14611268 DOI: 10.1021/cr0200724] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kana M Sureshan
- Division of Organic Synthesis, National Chemical Laboratory, Pune 411 008, India
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Haufe G, Rosen TC, Meyer OG, Fröhlich R, Rissanen K. Synthesis, reactions and structural features of monofluorinated cyclopropanecarboxylates. J Fluor Chem 2002. [DOI: 10.1016/s0022-1139(02)00040-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Laue K, Kröger S, Wegelius E, Haufe G. Stereoselective Synthesis of γ-Fluorinated α-Amino Acids Using 2-Hydroxy-3-pinanone as an Auxiliary. European J Org Chem 2000. [DOI: 10.1002/1099-0690(200011)2000:22<3737::aid-ejoc3737>3.0.co;2-a] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Biamonte MA, Vasella A. An Advantageous Synthesis of 1D- and 1L-1,2,3,5/4-Cyclohexanepentol. Helv Chim Acta 1998. [DOI: 10.1002/hlca.19980810319] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Weber M, Vasella A, Textor M, Spencer ND. Glycosylidene Carbenes. Part 27. Glucosidation of titanium dioxide with 1-aziglucoses: Preparation and characterization of modified titanium-dioxide surfaces. Helv Chim Acta 1998. [DOI: 10.1002/hlca.19980810546] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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