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Um IH, Jung YJ, Dust JM. Kinetic Study on Pyridinolysis of Aryl Benzenesulfonates: Factors Governing Regioselectivity and Reaction Mechanism. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A kinetic study is reported for reactions of 2,4-dinitrophenyl X-substituted-benzenesulfonates (1a-1f) and Y-substituted-phenyl benzenesulfonates (2a-2f) with Z-substituted-pyridines. The reactions proceed through S‒O and C‒O bond scissions competitively. The Yukawa-Tsuno plot for the reactions of 1a-1f with 4-oxypyridine (S‒O bond fission) exhibits an excellent linearity. The Brønsted-type plot for the reactions of 2,4-dinitrophenyl benzenesulfonate (1d) with pyridines (S‒O bond fission) is also linear with βnuc = 0.62. The Brønsted-type plot for the reactions of 2a-2f with 4-oxypyridines (S‒O bond fission) is linear with βlg= ‒1.17. Thus, the reactions have been concluded to proceed through a concerted mechanism, in which leaving-group expulsion is significantly more advanced than bond formation between the electrophilic center and nucleophile at the transition state. The Hammett plot for the reactions of 1a-1f with 4-oxypyridine (C‒O bond fission) exhibits scattered points with ρX= 0.98. The Brønsted-type plot for the reactions of 1d with Z-substituted-pyridines (C‒O bond fission) results in an excellent linear correlation with βnuc = 0.38. Thus, the reactions (C‒O bond fission) have been concluded to proceed through a stepwise mechanism with a Meisenheimer complex, in which expulsion of the leaving group occurs after the rate-determining step. Factors governing regioselectivity and reaction mechanism are discussed.
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Affiliation(s)
- Ik-Hwan Um
- Ewha Womans University, Department of Chemistry, Division of Nano Sciences, Ewha Womans University, Seoul 120 � 750, Korea, Seoul, Korea (the Republic of), 120-750, ,
| | - Yoon Jae Jung
- Pohang University of Science and Technology, 34995, Pohang, Korea (the Republic of)
| | - Julian Michael Dust
- Memorial University of Newfoundland, 7512, Departments of Chemistry and Environmental Science, St. John's, Newfoundland and Labrador, Canada, A1C 5S7
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2
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Mouhtady O, Castellan T, André‐Barrès C, Gornitzka H, Fabing I, Saffon‐Merceron N, Génisson Y, Gaspard H. (
R
)‐BINOL‐6,6’‐bistriflone: Shortened Synthesis, Characterization, and Enantioselective Catalytic Applications. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Omar Mouhtady
- College of Engineering and Technology American University of the Middle East Kuwait
| | - Tessa Castellan
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique SPCMIB UMR 5068 CNRS/Université Paul Sabatier - Toulouse III 118 route de Narbonne Toulouse 31062 Cedex 9 France
| | - Christiane André‐Barrès
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique SPCMIB UMR 5068 CNRS/Université Paul Sabatier - Toulouse III 118 route de Narbonne Toulouse 31062 Cedex 9 France
| | - Heinz Gornitzka
- LCC-CNRS Université de Toulouse CNRS UPS Toulouse 31077 France
| | - Isabelle Fabing
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique SPCMIB UMR 5068 CNRS/Université Paul Sabatier - Toulouse III 118 route de Narbonne Toulouse 31062 Cedex 9 France
| | - Nathalie Saffon‐Merceron
- Institut de Chimie de Toulouse ICT FR 2599 CNRS/Université Paul Sabatier - Toulouse III Toulouse 31062 Cedex 9 France
| | - Yves Génisson
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique SPCMIB UMR 5068 CNRS/Université Paul Sabatier - Toulouse III 118 route de Narbonne Toulouse 31062 Cedex 9 France
| | - Hafida Gaspard
- Laboratoire de Synthèse et Physico-Chimie de Molécules d'Intérêt Biologique SPCMIB UMR 5068 CNRS/Université Paul Sabatier - Toulouse III 118 route de Narbonne Toulouse 31062 Cedex 9 France
- Laboratoire Hétérochimie Fondamentale et Appliquée LHFA UMR 5069 CNRS/Université Paul Sabatier - Toulouse III 118 route de Narbonne Toulouse 31062 Cedex 9 France
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3
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Salah SB, Necibi F, Goumont R, Boubaker T. Electrophilicities of 4‐Nitrobenzochalcogenadiazoles. ChemistrySelect 2020. [DOI: 10.1002/slct.202001928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Saida Ben Salah
- Laboratoire C.H.P.N.R Faculté des Sciences de Monastir Université de Monastir Avenue de l'Environnement 5019 Monastir Tunisia
| | - Feriel Necibi
- Laboratoire C.H.P.N.R Faculté des Sciences de Monastir Université de Monastir Avenue de l'Environnement 5019 Monastir Tunisia
| | - Régis Goumont
- Institut Lavoisier de Versailles UMR 8180 Université de Versailles 45, Avenue des Etats-Unis 78035 Versailles Cedex France
| | - Taoufik Boubaker
- Laboratoire C.H.P.N.R Faculté des Sciences de Monastir Université de Monastir Avenue de l'Environnement 5019 Monastir Tunisia
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Souissi S, Gabsi W, Echaieb A, Boubaker T. Kinetics and quantification of the electrophilic reactivities of substituted thiophenes and structure-reactivity relationships. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21184] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Salma Souissi
- Laboratoire C.H.P.N.R, Faculté des Sciences de Monastir; Université de Monastir; Monastir Tunisia
| | - Wahiba Gabsi
- Laboratoire C.H.P.N.R, Faculté des Sciences de Monastir; Université de Monastir; Monastir Tunisia
| | - Abderraouf Echaieb
- Laboratoire C.H.P.N.R, Faculté des Sciences de Monastir; Université de Monastir; Monastir Tunisia
| | - Taoufik Boubaker
- Laboratoire C.H.P.N.R, Faculté des Sciences de Monastir; Université de Monastir; Monastir Tunisia
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5
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Gabsi W, Essalah K, Goumont R, Tangour B, Boubaker T. The ambident electrophilic behavior of 5-nitro-3-X-thiophenes in σ-complexation processes. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21190] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wahiba Gabsi
- Laboratoire C.H.P.N.R, Faculté des Sciences de Monastir; Université de Monastir; Monastir Tunisia
| | - Khalid Essalah
- Unité de Recherche en Sciences Fondamentales et Didactique; Université de Tunis EL Manar; El Manar II Tunisia
| | - Régis Goumont
- Institut Lavoisier de Versailles, UMR 8180; Université de Versailles; Versailles Cedex France
| | - Bahoueddine Tangour
- Unité de Recherche en Sciences Fondamentales et Didactique; Université de Tunis EL Manar; El Manar II Tunisia
| | - Taoufik Boubaker
- Laboratoire C.H.P.N.R, Faculté des Sciences de Monastir; Université de Monastir; Monastir Tunisia
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6
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Raissi H, Jamaoui I, Goumont R, Boubaker T. Kinetic Studies on SN
Ar Reactions of Substituted Benzofurazan Derivatives: Quantification of the Electrophilic Reactivities and Effect of Amine Nature on Reaction Mechanism. INT J CHEM KINET 2017. [DOI: 10.1002/kin.21131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- H. Raissi
- Laboratoire C.H.P.N.R; Faculté des Sciences de Monastir; Université de Monastir; 5019 Monastir Tunisie
| | - I. Jamaoui
- Laboratoire C.H.P.N.R; Faculté des Sciences de Monastir; Université de Monastir; 5019 Monastir Tunisie
| | - R. Goumont
- Institut Lavoisier de Versailles; UMR 8180; Université de Versailles; 78035 Versailles Cedex France
| | - T. Boubaker
- Laboratoire C.H.P.N.R; Faculté des Sciences de Monastir; Université de Monastir; 5019 Monastir Tunisie
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