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Elias S, Columbus I, Shoshanim O, Mizrahi D, Chen R, Yehezkel L, Ghindes‐Azaria L, Ashkenazi N, Zafrani Y. The Prominent Motif of the Leaving Group in Chemical and Biological Processes of Phosphonoesters: Understanding the Behavior of V‐type Nerve Agents. ChemistrySelect 2022. [DOI: 10.1002/slct.202201363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shlomi Elias
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Ishay Columbus
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Ofir Shoshanim
- Department of Environmental Physics Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Dana Mizrahi
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Ravit Chen
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Lea Yehezkel
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Lee Ghindes‐Azaria
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Nissan Ashkenazi
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
| | - Yossi Zafrani
- Department of Organic Chemistry Israel Institute for Biological Research Ness-Ziona 7410019 Israel
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2
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Enakieva YY, Volostnykh MV, Nefedov SE, Kirakosyan GA, Gorbunova YG, Tsivadze AY, Bessmertnykh-Lemeune AG, Stern C, Guilard R. Gallium(III) and Indium(III) Complexes with meso-Monophosphorylated Porphyrins: Synthesis and Structure. A First Example of Dimers Formed by the Self-Assembly of meso-Porphyrinylphosphonic Acid Monoester. Inorg Chem 2017; 56:3055-3070. [PMID: 28195721 DOI: 10.1021/acs.inorgchem.6b03160] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and structural characterization, both in solution by means of 1H and 31P NMR and UV-vis spectroscopies and in the solid state by X-ray diffraction on single crystal, of a series of gallium(III) and indium(III) meso-mono(diethoxyphosphoryl)porphyrins bearing different peripheral substituents as well as the corresponding monoesters and phosphonic acids are reported. This work describes the first example of the X-ray structure of a self-assembled dimer formed via strong binding between the oxygen atom of the phosphonate substituent and the gallium(III) cations of adjacent porphyrin molecules [Ga-O = 1.9708(13) Å].
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Affiliation(s)
- Yulia Yu Enakieva
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences , Leninskii pr. 31, Building 4, Moscow 119071, Russia
| | - Marina V Volostnykh
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences , Leninskii pr. 31, Building 4, Moscow 119071, Russia.,Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302) , 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Sergey E Nefedov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences , Leninskii pr. 31, Moscow 119991, Russia
| | - Gayane A Kirakosyan
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences , Leninskii pr. 31, Building 4, Moscow 119071, Russia.,Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences , Leninskii pr. 31, Moscow 119991, Russia
| | - Yulia G Gorbunova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences , Leninskii pr. 31, Building 4, Moscow 119071, Russia.,Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences , Leninskii pr. 31, Moscow 119991, Russia
| | - Aslan Yu Tsivadze
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences , Leninskii pr. 31, Building 4, Moscow 119071, Russia.,Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences , Leninskii pr. 31, Moscow 119991, Russia
| | - Alla G Bessmertnykh-Lemeune
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302) , 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Christine Stern
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302) , 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Roger Guilard
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302) , 9 Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
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Si H, Zhang C, Luo X, Chen R, Liang G. Theoretical studies on the hydrolysis mechanism of acetamiprid. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1830-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Interactions between indazole derivative and magnesium cations – NMR investigations and theoretical calculations. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ashkenazi N, Chen R. Nucleophilic Displacements in Alkylphosphonates: P–O Versus P–C Bond Cleavage. A Combined DFT and Experimental Study. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.743130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Nissan Ashkenazi
- a Department of Organic Chemistry , IIBR-Israel Institute for Biological Research , Ness-Ziona , Israel
| | - Ravit Chen
- a Department of Organic Chemistry , IIBR-Israel Institute for Biological Research , Ness-Ziona , Israel
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Marciano D, Columbus I, Elias S, Goldvaser M, Shoshanim O, Ashkenazi N, Zafrani Y. Role of the P–F Bond in Fluoride-Promoted Aqueous VX Hydrolysis: An Experimental and Theoretical Study. J Org Chem 2012; 77:10042-9. [DOI: 10.1021/jo301549z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Daniele Marciano
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Ishay Columbus
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Shlomi Elias
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Michael Goldvaser
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Ofir Shoshanim
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Nissan Ashkenazi
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Yossi Zafrani
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
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Preparation of new imidazol-2-yl-(amino)methylphosphonates, phosphinates and phosphine oxides and their unexpected cleavage under acidic conditions. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Xia F, Zhu H. Alkaline hydrolysis of ethylene phosphate: an ab initio study by supermolecule model and polarizable continuum approach. J Comput Chem 2011; 32:2545-54. [PMID: 21598282 DOI: 10.1002/jcc.21834] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 02/26/2011] [Accepted: 10/20/2011] [Indexed: 11/06/2022]
Abstract
The alkaline hydrolysis reaction of ethylene phosphate (EP) has been investigated using a supermolecule model, in which several explicit water molecules are included. The structures and single-point energies for all of the stationary points are calculated in the gas phase and in solution at the B3LYP/6-31++G(df,p) and MP2/6-311++G(df,2p) levels. The effect of water bulk solvent is introduced by the polarizable continuum model (PCM). Water attack and hydroxide attack pathways are taken into account for the alkaline hydrolysis of EP. An associative mechanism is observed for both of the two pathways with a kinetically insignificant intermediate. The water attack pathway involves a water molecule attacking and a proton transfer from the attacking water to the hydroxide in the first step, followed by an endocyclic bond cleavage to the leaving group. While in the first step of the hydroxide attack pathway the nucleophile is the hydroxide anion. The calculated barriers in aqueous solution for the water attack and hydroxide attack pathways are all about 22 kcal/mol. The excellent agreement between the calculated and observed values demonstrates that both of the two pathways are possible for the alkaline hydrolysis of EP.
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Affiliation(s)
- Futing Xia
- School of Chemistry, Sichuan University, Chengdu, China
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Michalska J, Boduszek B, Olszewski TK. New quinoline-2, -3, and 4-yl-(amino) methylphosphonates: Synthesis and study on the CP bond cleavage in quinoline-2 and -4 derivatives under acidic conditions. HETEROATOM CHEMISTRY 2011. [DOI: 10.1002/hc.20704] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Tibhe GD, Labastida-Galván V, Ordóñez M. Study of the fragmentation pathway of α-aminophosphonates by chemical ionization and fast atom bombardment mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:951-959. [PMID: 21416532 DOI: 10.1002/rcm.4938] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 01/17/2011] [Accepted: 01/18/2011] [Indexed: 05/30/2023]
Abstract
The diastereoisomers of α-aminophosphonates are key intermediates in the synthesis of enantiomerically pure α-aminophosphonic acids, which are analogs of α-amino acids. Although several methods have been reported for the diastereoselective synthesis of α-aminophosphonates, their mass spectrometry (MS) fragmentation patterns have not yet been fully investigated. The work described here involved a detailed study of the fragmentation of enriched α-aminophosphonate diastereoisomers by chemical ionization (CI-MS) and fast atom bombardment (FAB)-MS. The complete characterization of the different conventional MS fragmentation pathways is represented and this intriguing exercise required the use of tandem mass spectrometry (MS/MS) experiments and high-resolution accurate mass measurements. All α-aminophosphonates gave prominent pseudomolecular ions, protonated molecules [MH](+) , and their fragmentations mainly showed a loss of dimethyl phosphite to give the corresponding iminium ions as base peaks for α-aminophosphonates bearing methylbenzyl and 2,2-dimethylbutyl fragments. The loss of the chiral fragment from the iminium ions bearing the (S)-1-(1-naphthyl)ethyl group gave rise to a base peak due to aryl cations. The nature of all fragment ions were confirmed by high-resolution mass spectrometry (HRMS).
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Affiliation(s)
- Gaurao D Tibhe
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, 62210 Cuernavaca, Mor., México
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Synthesis of new thiazole-2, -4, and -5-yl-(amino)methylphosphonates and phosphinates: unprecedented cleavage of thiazole-2 derivatives under acidic conditions. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Ashkenazi N, Segall Y, Chen R, Sod-Moriah G, Fattal E. The Mechanism of Nucleophilic Displacements at Phosphorus in Chloro-Substituted Methylphosphonate Esters: P−O vs P−C Bond Cleavage: A DFT Study. J Org Chem 2010; 75:1917-26. [DOI: 10.1021/jo9026325] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Affiliation(s)
- Marek Doskocz
- a Department of Medicinal Chemistry and Microbiology, Faculty of Chemistry , Wrocław University of Technology , Wrocław, Poland
| | - Roman Gancarz
- a Department of Medicinal Chemistry and Microbiology, Faculty of Chemistry , Wrocław University of Technology , Wrocław, Poland
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Girod M, Phan TNT, Charles L. Tuning block copolymer structural information by adjusting salt concentration in liquid chromatography at critical conditions coupled with electrospray tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2009; 23:1476-1482. [PMID: 19350528 DOI: 10.1002/rcm.4028] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Different cationic adducts of poly(ethylene oxide)/polystyrene block co-oligomers could be produced by adjusting the salt concentration in the mobile phase using a coupling between liquid chromatography at critical conditions and electrospray ionization mass spectrometry. Formation of doubly lithiated adducts was observed at high LiCl concentration (1 mM) while lowering the salt concentration down to 0.1 mM allowed co-oligomers to be ionized with both a proton and a lithium. The fragmentation pathways observed to occur upon collision-induced dissociation of ionized copolymers were shown to be highly dependent on the nature of the cationic adducts. As a result, complementary structural information could be reached by performing MS/MS experiments on different ionic forms of the same co-oligomer molecule. On one hand, release of the nitroxide end-group as a radical from [M+2Li](2+) was followed by a complete depolymerization of the polystyrene block, allowing both this end-group and the polystyrene segment size to be determined. On the other hand, [M+H+Li](2+) precursor ions mainly dissociated via reactions involving bond cleavages within the nitroxide moiety, yielding useful structural information on this end-group.
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Affiliation(s)
- Marion Girod
- Universités Aix-Marseille I, II & III - CNRS, UMR 6264: Laboratoire Chimie Provence, Spectrométries Appliquées à la Chimie Structurale, F-13397 Marseille Cedex 20, France
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Mazarin M, Girod M, Viel S, Phan TNT, Marque SRA, Humbel S, Charles L. Role of the Adducted Cation in the Release of Nitroxide End Group of Controlled Polymer in Mass Spectrometry. Macromolecules 2009. [DOI: 10.1021/ma802372m] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Michaël Mazarin
- Spectrométries Appliquées à la Chimie Structurale, Chimie Radicalaire, Organique et Polymères de Spécialité, and Structure et Réactivité des Espèces Paramagnétiques, UMR 6264: Laboratoire Chimie Provence, Universités Aix-Marseille I, II, et III−CNRS, F-13397 Marseille, France, and Chimiométrie et Spectrométries and Chimie Théorique et Mécanismes, UMR 6263: Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université−CNRS, F-13397 Marseille, France
| | - Marion Girod
- Spectrométries Appliquées à la Chimie Structurale, Chimie Radicalaire, Organique et Polymères de Spécialité, and Structure et Réactivité des Espèces Paramagnétiques, UMR 6264: Laboratoire Chimie Provence, Universités Aix-Marseille I, II, et III−CNRS, F-13397 Marseille, France, and Chimiométrie et Spectrométries and Chimie Théorique et Mécanismes, UMR 6263: Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université−CNRS, F-13397 Marseille, France
| | - Stéphane Viel
- Spectrométries Appliquées à la Chimie Structurale, Chimie Radicalaire, Organique et Polymères de Spécialité, and Structure et Réactivité des Espèces Paramagnétiques, UMR 6264: Laboratoire Chimie Provence, Universités Aix-Marseille I, II, et III−CNRS, F-13397 Marseille, France, and Chimiométrie et Spectrométries and Chimie Théorique et Mécanismes, UMR 6263: Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université−CNRS, F-13397 Marseille, France
| | - Trang N. T. Phan
- Spectrométries Appliquées à la Chimie Structurale, Chimie Radicalaire, Organique et Polymères de Spécialité, and Structure et Réactivité des Espèces Paramagnétiques, UMR 6264: Laboratoire Chimie Provence, Universités Aix-Marseille I, II, et III−CNRS, F-13397 Marseille, France, and Chimiométrie et Spectrométries and Chimie Théorique et Mécanismes, UMR 6263: Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université−CNRS, F-13397 Marseille, France
| | - Sylvain R. A. Marque
- Spectrométries Appliquées à la Chimie Structurale, Chimie Radicalaire, Organique et Polymères de Spécialité, and Structure et Réactivité des Espèces Paramagnétiques, UMR 6264: Laboratoire Chimie Provence, Universités Aix-Marseille I, II, et III−CNRS, F-13397 Marseille, France, and Chimiométrie et Spectrométries and Chimie Théorique et Mécanismes, UMR 6263: Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université−CNRS, F-13397 Marseille, France
| | - Stéphane Humbel
- Spectrométries Appliquées à la Chimie Structurale, Chimie Radicalaire, Organique et Polymères de Spécialité, and Structure et Réactivité des Espèces Paramagnétiques, UMR 6264: Laboratoire Chimie Provence, Universités Aix-Marseille I, II, et III−CNRS, F-13397 Marseille, France, and Chimiométrie et Spectrométries and Chimie Théorique et Mécanismes, UMR 6263: Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université−CNRS, F-13397 Marseille, France
| | - Laurence Charles
- Spectrométries Appliquées à la Chimie Structurale, Chimie Radicalaire, Organique et Polymères de Spécialité, and Structure et Réactivité des Espèces Paramagnétiques, UMR 6264: Laboratoire Chimie Provence, Universités Aix-Marseille I, II, et III−CNRS, F-13397 Marseille, France, and Chimiométrie et Spectrométries and Chimie Théorique et Mécanismes, UMR 6263: Institut des Sciences Moléculaires de Marseille, Aix-Marseille Université−CNRS, F-13397 Marseille, France
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Mazarin M, Phan TNT, Charles L. Using solvent-free sample preparation to promote protonation of poly(ethylene oxide)s with labile end-groups in matrix-assisted laser desorption/ionisation. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2008; 22:3776-3782. [PMID: 18988203 DOI: 10.1002/rcm.3798] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Protonation is usually required to observe intact ions during matrix-assisted laser desorption/ionization (MALDI) of polymers containing fragile end-groups while cation adduction induces chain-end degradation. These polymers, generally obtained via living free radical polymerization techniques, are terminated with a functionality in which a bond is prone to homolytic cleavage, as required by the polymerization process. A solvent-free sample preparation method was used here to avoid salt contaminant from the solvent traditionally used in the dried-droplet MALDI procedure. Solvent-based and solvent-free sample preparations were compared for a series of three poly(ethylene oxide) polymers functionalized with a labile end-group in a nitroxide-mediated polymerization reaction, using 2,4,6-trihydroxyacetophenone (THAP) as the matrix without any added salt. Intact oligomer ions could only be produced as protonated molecules in solvent-free MALDI while sodium adducts of degraded polymers were formed from the dried-droplet samples. Although MALDI analysis was performed at the laser threshold, fragmentation of protonated macromolecules was still observed to occur. However, in contrast to sodiated molecules, dissociation of protonated oligomers does not involve the labile C--ON bond of the end-group. As the macromolecule size increased, protonation appeared to be less efficient and sodium adduction became the dominant ionization process, although no sodium salt was added in the preparation. Formation of sodiated degraded macromolecules would be dictated by increasing cation affinity as the size of the oligomers increases and would reveal the presence of salts at trace levels in the MALDI samples.
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Affiliation(s)
- Michael Mazarin
- Universités Aix-Marseille I, II et III - CNRS, UMR 6264, Spectrométries Appliquées à la Chimie Structurale, F-13397 Marseille Cedex 20, France
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Doskocz M, Roszak S, Gancarz R. The decomposition of α-aminophosphine oxides to phosphonic acid derivatives (PIII). J Mol Model 2008; 14:435-40. [DOI: 10.1007/s00894-008-0292-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Accepted: 02/12/2008] [Indexed: 11/30/2022]
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