101
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Yunusova SN, Bolotin DS, Vovk MA, Tolstoy PM, Kukushkin VY. Tetrabromomethane as an Organic Catalyst: a Kinetic Study of CBr
4
‐Catalyzed Schiff Condensation. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Sevilya N. Yunusova
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
| | - Dmitrii S. Bolotin
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
| | - Mikhail A. Vovk
- Center for Magnetic Resonance Saint Petersburg State University Saint Petersburg Russian Federation
| | - Peter M. Tolstoy
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry Saint Petersburg State University Universitetskaya Nab. 7/9 Saint Petersburg Russian Federation
- Laboratory of Crystal Engineering of Functional Materials South Ural State University 76, Lenin Av. 454080 Chelyabinsk Russian Federation
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102
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Paraja M, Gini A, Sakai N, Matile S. Pnictogen‐Bonding Catalysis: An Interactive Tool to Uncover Unorthodox Mechanisms in Polyether Cascade Cyclizations. Chemistry 2020; 26:15471-15476. [DOI: 10.1002/chem.202003426] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/05/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Miguel Paraja
- Department of Organic Chemistry University of Geneva Geneva Switzerland
| | - Andrea Gini
- Department of Organic Chemistry University of Geneva Geneva Switzerland
| | - Naomi Sakai
- Department of Organic Chemistry University of Geneva Geneva Switzerland
| | - Stefan Matile
- Department of Organic Chemistry University of Geneva Geneva Switzerland
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103
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Mamane V, Peluso P, Aubert E, Weiss R, Wenger E, Cossu S, Pale P. Disubstituted Ferrocenyl Iodo- and Chalcogenoalkynes as Chiral Halogen and Chalcogen Bond Donors. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00633] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Victor Mamane
- Institut de Chimie de Strasbourg, UMR CNRS 7177, Equipe LASYROC, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Paola Peluso
- Istituto di Chimica Biomolecolare ICB, CNR, Sede secondaria di Sassari, Traversa La Crucca 3, Regione Baldinca, 07100 Li Punti, Sassari, Italy
| | - Emmanuel Aubert
- , Université de Lorraine, CNRS, CRM2, Bd des Aiguillettes, F-54000 Nancy, France
| | - Robin Weiss
- Institut de Chimie de Strasbourg, UMR CNRS 7177, Equipe LASYROC, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Emmanuel Wenger
- , Université de Lorraine, CNRS, CRM2, Bd des Aiguillettes, F-54000 Nancy, France
| | - Sergio Cossu
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN, Università Ca’ Foscari Venezia, Via Torino 155, 30172 Mestre Venezia, Italy
| | - Patrick Pale
- Institut de Chimie de Strasbourg, UMR CNRS 7177, Equipe LASYROC, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
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104
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Kaasik M, Kanger T. Supramolecular Halogen Bonds in Asymmetric Catalysis. Front Chem 2020; 8:599064. [PMID: 33195108 PMCID: PMC7609521 DOI: 10.3389/fchem.2020.599064] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 09/15/2020] [Indexed: 12/17/2022] Open
Abstract
Halogen bonding has received a significant increase in attention in the past 20 years. An important part of this interest has centered on catalytic applications of halogen bonding. Halogen bond (XB) catalysis is still a developing field in organocatalysis, although XB catalysis has outgrown its proof of concept phase. The start of this year witnessed the publication of the first example of a purely XB-based enantioselective catalytic reaction. While the selectivity can be improved upon, there are already plenty of examples in which halogen bonds, among other interactions, play a crucial role in the outcome of highly enantioselective reactions. This paper will give an overview of the current state of the use of XBs in catalytic stereoselective processes.
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Affiliation(s)
| | - Tõnis Kanger
- Department of Chemistry and Biotechnology, Tallinn University of Technology, Tallinn, Estonia
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105
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Chang YP, Tang T, Jagannathan JR, Hirbawi N, Sun S, Brown J, Franz AK. NMR Quantification of Halogen-Bonding Ability To Evaluate Catalyst Activity. Org Lett 2020; 22:6647-6652. [PMID: 32806211 DOI: 10.1021/acs.orglett.0c02427] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Quantification of halogen-bonding abilities is described for a series of benzimidazolium-, imidazolium- and bis(imidazolium) halogen-bond donors (XBDs) using 31P NMR spectroscopy. The measured Δδ(31P) values correlate with calculated activation free energy ΔG‡ and catalytic activity for a Friedel-Crafts indole addition. This rapid method also serves as a sensitive indicator for Brønsted acid impurities.
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Affiliation(s)
- Yun-Pu Chang
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Teresa Tang
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Jake R Jagannathan
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Nadia Hirbawi
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Shaoming Sun
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Jonah Brown
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Annaliese K Franz
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
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106
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Zhou B, Gabbaï FP. Redox-controlled chalcogen-bonding at tellurium: impact on Lewis acidity and chloride anion transport properties. Chem Sci 2020; 11:7495-7500. [PMID: 34123032 PMCID: PMC8159482 DOI: 10.1039/d0sc02872j] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Our interests in the chemistry of atypical main group Lewis acids have led us to devise strategies that augment the affinity of chalcogen-bond donors for anionic guests. In this study, we describe the oxidative methylation of diaryltellurides as one such strategy along with its application to the synthesis of [Mes(C6F5)TeMe]+ and [(C6F5)2TeMe]+ starting from Mes(C6F5)Te and (C6F5)2Te, respectively. These new telluronium cations have been evaluated for their ability to complex and transport chloride anions across phospholipid bilayers. These studies show that, when compared to their neutral Te(ii) precursors, these Te(iv) cations display both higher Lewis acidity and transport activity. The positive attributes of these telluronium cations, which originate from a lowering of the tellurium-centered σ* orbitals and a deepening of the associated σ-holes, demonstrate that the redox state of the main group element provides a convenient handle over its chalcogen-bonding properties. The oxidative alkylation of diorganotellurides enhances the chalcogen-bond donor properties of the tellurium center, an effect manifested in the enhanced chloride anion affinity and transport properties of the resulting telluronium cations.![]()
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Affiliation(s)
- Benyu Zhou
- Department of Chemistry, Texas A&M University College Station Texas 77843-3255 USA
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University College Station Texas 77843-3255 USA
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107
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Holthoff JM, Engelage E, Weiss R, Huber SM. "Anti-Electrostatic" Halogen Bonding. Angew Chem Int Ed Engl 2020; 59:11150-11157. [PMID: 32227661 PMCID: PMC7317790 DOI: 10.1002/anie.202003083] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/30/2020] [Indexed: 01/03/2023]
Abstract
Halogen bonding is often described as being driven predominantly by electrostatics, and thus adducts between anionic halogen bond (XB) donors (halogen-based Lewis acids) and anions seem counterintuitive. Such "anti-electrostatic" XBs have been predicted theoretically but for organic XB donors, there are currently no experimental examples except for a few cases of self-association. Reported herein is the synthesis of two negatively charged organoiodine derivatives that form anti-electrostatic XBs with anions. Even though the electrostatic potential is universally negative across the surface of both compounds, DFT calculations indicate kinetic stabilization of their halide complexes in the gas phase and particularly in solution. Experimentally, self-association of the anionic XB donors was observed in solid-state structures, resulting in dimers, trimers, and infinite chains. In addition, co-crystals with halides were obtained, representing the first cases of halogen bonding between an organic anionic XB donor and a different anion. The bond lengths of all observed interactions are 14-21 % shorter than the sum of the van der Waals radii.
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Affiliation(s)
- Jana M. Holthoff
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Elric Engelage
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Robert Weiss
- Institut für Organische ChemieFriedrich-Alexander-Universität Erlangen-NürnbergHenkestraße 4291054ErlangenGermany
| | - Stefan M. Huber
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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108
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Gini A, Paraja M, Galmés B, Besnard C, Poblador-Bahamonde AI, Sakai N, Frontera A, Matile S. Pnictogen-bonding catalysis: brevetoxin-type polyether cyclizations. Chem Sci 2020; 11:7086-7091. [PMID: 33250977 PMCID: PMC7690316 DOI: 10.1039/d0sc02551h] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/17/2020] [Indexed: 12/30/2022] Open
Abstract
This study marks chemical space available for pnictogen-bonding catalysis, and demonstrates that reactivity accessible in this space is unique.
Pnictogen-bond donors are attractive for use in catalysis because of deep σ holes, high multivalency, rich hypervalency, and chiral binding pockets. We here report natural product inspired epoxide-opening polyether cyclizations catalyzed by fluoroarylated Sb(v) > Sb(iii) > Bi > Sn > Ge. The distinctive characteristic found for pnictogen-bonding catalysis is the breaking of the Baldwin rules, that is selective endo cyclization into the trans-fused ladder oligomers known from the brevetoxins. Moreover, tris(3,4,5-trifluorophenyl)stibines and their hypervalent stiborane catecholates afford different anti-Baldwin stereoselectivity. Lewis (SbCl3), Brønsted (AcOH) and π acids fail to provide similar access to these forbidden rings. Like hydrogen-bonding catalysis differs from Brønsted acid catalysis, pnictogen-bonding catalysis thus emerges as the supramolecular counterpart of covalent Lewis acid catalysis.
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Affiliation(s)
- Andrea Gini
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; Tel: +41 22 379 6523
| | - Miguel Paraja
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; Tel: +41 22 379 6523
| | - Bartomeu Galmés
- Department de Química , Universitat de les Illes Balears , Palma de Mallorca , Spain
| | - Celine Besnard
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; Tel: +41 22 379 6523
| | - Amalia I Poblador-Bahamonde
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; Tel: +41 22 379 6523
| | - Naomi Sakai
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; Tel: +41 22 379 6523
| | - Antonio Frontera
- Department de Química , Universitat de les Illes Balears , Palma de Mallorca , Spain
| | - Stefan Matile
- Department of Organic Chemistry , University of Geneva , Geneva , Switzerland . ; http://www.unige.ch/sciences/chiorg/matile/ ; Tel: +41 22 379 6523
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109
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110
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Holthoff JM, Engelage E, Weiss R, Huber SM. “Anti‐elektrostatische” Halogenbrücken. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003083] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jana M. Holthoff
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Elric Engelage
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Robert Weiss
- Institut für Organische ChemieFriedrich-Alexander-Universität Erlangen-Nürnberg Henkestraße 42 91054 Erlangen Deutschland
| | - Stefan M. Huber
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
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111
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Heinen F, Engelage E, Cramer CJ, Huber SM. Hypervalent Iodine(III) Compounds as Biaxial Halogen Bond Donors. J Am Chem Soc 2020; 142:8633-8640. [PMID: 32286829 PMCID: PMC7252947 DOI: 10.1021/jacs.9b13309] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
![]()
“Hypervalent”
iodine(III) derivatives have been established as powerful reagents
in organic transformations, but so far only a handful of studies have
addressed their potential use as halogen-bonding noncovalent Lewis
acids. In contrast to “classical” halogen-bond donors
based on iodine(I) compounds, iodine(III) salts feature two directional
electrophilic axes perpendicular to each other. Herein we present
the first systematic investigation on biaxial binding to such Lewis
acids in solution. To this end, hindered and unhindered iodolium species
were titrated with various substrates, including diesters and diamides,
via 1H NMR spectroscopy and isothermal titration calorimetry.
Clear evidence for biaxial binding was obtained in two model systems,
and the association strengths increased by 2 orders of magnitude.
These findings were corroborated by density functional theory calculations
(which reproduced the trend well but underestimated the absolute binding
constants) and a cocrystal featuring biaxial coordination of a diamide
to the unhindered iodolium compound.
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Affiliation(s)
- Flemming Heinen
- Fakultät für Chemie und Biochemie, Organische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150,44801 Bochum, Germany
| | - Elric Engelage
- Fakultät für Chemie und Biochemie, Organische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150,44801 Bochum, Germany
| | - Christopher J Cramer
- Department of Chemistry, Chemical Theory Center, and Minnesota Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis 55455-0431, Minnesota, United States
| | - Stefan M Huber
- Fakultät für Chemie und Biochemie, Organische Chemie I, Ruhr-Universität Bochum, Universitätsstraße 150,44801 Bochum, Germany
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112
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Sutar RL, Engelage E, Stoll R, Huber SM. Bidentate Chiral Bis(imidazolium)-Based Halogen-Bond Donors: Synthesis and Applications in Enantioselective Recognition and Catalysis. Angew Chem Int Ed Engl 2020; 59:6806-6810. [PMID: 32045504 PMCID: PMC7187470 DOI: 10.1002/anie.201915931] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Indexed: 01/13/2023]
Abstract
Even though halogen bonding-the noncovalent interaction between electrophilic halogen substituents and Lewis bases-has now been established in molecular recognition and catalysis, its use in enantioselective processes is still very rarely explored. Herein, we present the synthesis of chiral bidentate halogen-bond donors based on two iodoimidazolium units with rigidly attached chiral sidearms. With these Lewis acids, chiral recognition of a racemic diamine is achieved in NMR studies. DFT calculations support a 1:1 interaction of the halogen-bond donor with both enantiomers and indicate that the chiral recognition is based on a different spatial orientation of the Lewis bases in the halogen-bonded complexes. In addition, moderate enantioselectivity is achieved in a Mukaiyama aldol reaction with a preorganized variant of the chiral halogen-bond donor. This represents the first case in which asymmetric induction was realized with a pure halogen-bond donor lacking any additional active functional groups.
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Affiliation(s)
- Revannath L. Sutar
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
| | - Elric Engelage
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
| | - Raphael Stoll
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
| | - Stefan M. Huber
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
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113
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Sutar RL, Engelage E, Stoll R, Huber SM. Zweizähnige chirale Bis(imidazolium)‐basierte Halogenbrückendonoren: Synthese und Anwendungen in enantioselektiver Erkennung und Katalyse. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915931] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Revannath L. Sutar
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Elric Engelage
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Raphael Stoll
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Stefan M. Huber
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
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114
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Tao Y, Qiu Y, Zou W, Nanayakkara S, Yannacone S, Kraka E. In Situ Assessment of Intrinsic Strength of X-I⋯OA-Type Halogen Bonds in Molecular Crystals with Periodic Local Vibrational Mode Theory. Molecules 2020; 25:molecules25071589. [PMID: 32235623 PMCID: PMC7181175 DOI: 10.3390/molecules25071589] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 12/03/2022] Open
Abstract
Periodic local vibrational modes were calculated with the rev-vdW-DF2 density functional to quantify the intrinsic strength of the X-I⋯OA-type halogen bonding (X = I or Cl; OA: carbonyl, ether and N-oxide groups) in 32 model systems originating from 20 molecular crystals. We found that the halogen bonding between the donor dihalogen X-I and the wide collection of acceptor molecules OA features considerable variations of the local stretching force constants (0.1–0.8 mdyn/Å) for I⋯O halogen bonds, demonstrating its powerful tunability in bond strength. Strong correlations between bond length and local stretching force constant were observed in crystals for both the donor X-I bonds and I⋯O halogen bonds, extending for the first time the generalized Badger’s rule to crystals. It is demonstrated that the halogen atom X controlling the electrostatic attraction between the σ-hole on atom I and the acceptor atom O dominates the intrinsic strength of I⋯O halogen bonds. Different oxygen-containing acceptor molecules OA and even subtle changes induced by substituents can tweak the n→σ∗(X-I) charge transfer character, which is the second important factor determining the I⋯O bond strength. In addition, the presence of the second halogen bond with atom X of the donor X-I bond in crystals can substantially weaken the target I⋯O halogen bond. In summary, this study performing the in situ measurement of halogen bonding strength in crystalline structures demonstrates the vast potential of the periodic local vibrational mode theory for characterizing and understanding non-covalent interactions in materials.
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Affiliation(s)
- Yunwen Tao
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275-0314, USA; (Y.T.); (S.N.); (S.Y.)
| | - Yue Qiu
- Grimwade Centre for Cultural Materials Conservation, School of Historical and Philosophical Studies, Faculty of Arts, University of Melbourne, Parkville, VIC 3052, Australia;
| | - Wenli Zou
- Institute of Modern Physics, Northwest University, and Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi’an 710127, China;
| | - Sadisha Nanayakkara
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275-0314, USA; (Y.T.); (S.N.); (S.Y.)
| | - Seth Yannacone
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275-0314, USA; (Y.T.); (S.N.); (S.Y.)
| | - Elfi Kraka
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX 75275-0314, USA; (Y.T.); (S.N.); (S.Y.)
- Correspondence:
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115
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Bao L, Kong X, Wang Y. Noncovalent Chalcogen‐Bonding Catalysis Using ppm‐Level Catalyst Loading to Achieve Cyanosilylation of Ketones. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000127] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lintao Bao
- School of Chemistry and Chemical Engineering Key Laboratory of the Colloid and Interface Chemistry Ministry of EducationShandong University 27 Shanda South Road Jinan 250100, Shandong P. R. China
| | - Xiangjin Kong
- School of Chemistry and Chemical Engineering Key Laboratory of the Colloid and Interface Chemistry Ministry of EducationShandong University 27 Shanda South Road Jinan 250100, Shandong P. R. China
| | - Yao Wang
- School of Chemistry and Chemical Engineering Key Laboratory of the Colloid and Interface Chemistry Ministry of EducationShandong University 27 Shanda South Road Jinan 250100, Shandong P. R. China
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116
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Engelage E, Reinhard D, Huber SM. Is There a Single Ideal Parameter for Halogen-Bonding-Based Lewis Acidity? Chemistry 2020; 26:3843-3861. [PMID: 31943430 PMCID: PMC7154672 DOI: 10.1002/chem.201905273] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Indexed: 01/08/2023]
Abstract
Halogen-bond donors (halogen-based Lewis acids) have now found various applications in diverse fields of chemistry. The goal of this study was to identify a parameter obtainable from a single DFT calculation that reliably describes halogen-bonding strength (Lewis acidity). First, several DFT methods were benchmarked against the CCSD(T) CBS binding data of complexes of 17 carbon-based halogen-bond donors with chloride and ammonia as representative Lewis bases, which revealed M05-2X with a partially augmented def2-TZVP(D) basis set as the best model chemistry. The best single parameter to predict halogen-bonding strengths was the static σ-hole depth, but it still provided inaccurate predictions for a series of compounds. Thus, a more reliable parameter, Ωσ* , has been developed through the linear combination of the σ-hole depth and the σ*(C-I) energy, which was further validated against neutral, cationic, halogen- and nitrogen-based halogen-bond donors with very good performance.
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Affiliation(s)
- Elric Engelage
- Organische Chemie IFakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Dominik Reinhard
- Organische Chemie IFakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Stefan M. Huber
- Organische Chemie IFakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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117
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Zhang S, Greenhalgh MD, Slawin AMZ, Smith AD. Tandem sequential catalytic enantioselective synthesis of highly-functionalised tetrahydroindolizine derivatives. Chem Sci 2020; 11:3885-3892. [PMID: 34122857 PMCID: PMC8152628 DOI: 10.1039/d0sc00432d] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
An isothiourea-catalysed enantioselective synthesis of novel tetrahydroindolizine derivatives is reported through a one-pot tandem sequential process. The application of 2-(pyrrol-1-yl)acetic acid in combination with either a trifluoromethyl enone or an α-keto-β,γ-unsaturated ester in an enantioselective Michael addition–lactonisation process, followed by in situ ring-opening and cyclisation, led to a range of 24 tetrahydroindolizine derivatives containing three stereocentres in up to >95 : 5 dr and >99 : 1 er. The isothiourea-catalysed enantioselective synthesis of tetrahydroindolizine derivatives containing three stereocentres is reported through a one-pot tandem sequential process.![]()
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Affiliation(s)
- Shuyue Zhang
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Mark D Greenhalgh
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh St Andrews KY16 9ST UK
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118
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Voelkel MHH, Wonner P, Huber SM. Preorganization: A Powerful Tool in Intermolecular Halogen Bonding in Solution. ChemistryOpen 2020; 9:214-224. [PMID: 32071831 PMCID: PMC7011185 DOI: 10.1002/open.201900355] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/21/2020] [Indexed: 11/25/2022] Open
Abstract
Preorganization is a powerful tool in supramolecular chemistry which has been utilized successfully in intra- and intermolecular halogen bonding. In previous work, we had developed a bidentate bis(iodobenzimidazolium)-based halogen bond donor which featured a central trifluoromethyl substituent. This compound showed a markedly increased catalytic activity compared to unsubstituted bis(iodoimidazolium)-based Lewis acids, which could be explained either by electronic effects (the electron withdrawal by the fluorinated substituent) or by preorganization (the hindered rotation of the halogen bonding moieties). Herein, we systematically investigate the origin of this increased Lewis acidity via a comparison of the two types of compounds and their respective derivatives with or without the central trifluoromethyl group. Calorimetric measurements of halide complexations indicated that preorganization is the main reason for the higher halogen bonding strength. The performance of the catalysts in a series of benchmark reactions corroborates this finding.
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Affiliation(s)
- Martin H. H. Voelkel
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Patrick Wonner
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Stefan Matthias Huber
- Fakultät für Chemie und BiochemieRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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119
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Wang W, Zhu H, Feng L, Yu Q, Hao J, Zhu R, Wang Y. Dual Chalcogen–Chalcogen Bonding Catalysis. J Am Chem Soc 2020; 142:3117-3124. [DOI: 10.1021/jacs.9b12610] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Wei Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Haofu Zhu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Lei Feng
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Qun Yu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jingcheng Hao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Rongxiu Zhu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yao Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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120
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Dortéz S, Fernández-Palacio F, Damián J, Gaiteiro C, Ramos J, Gómez-Sal P, Mosquera MEG. Halogen bonding (HaB) in E–I⋯X–M systems: influence of the halogen donor on the HaB nature. CrystEngComm 2020. [DOI: 10.1039/c9ce01449g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A study on how the covalent character of the halogen bond can be modulated by using different halogen donors.
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Affiliation(s)
- Silvia Dortéz
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Francisco Fernández-Palacio
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Jesús Damián
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Carlos Gaiteiro
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Javier Ramos
- BIOPHYM
- Department of Macromolecular Physics
- Instituto de Estructura de la Materia
- IEM-CSIC
- Spain
| | - Pilar Gómez-Sal
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
| | - Marta E. G. Mosquera
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación en Química “Andrés M. del Río” (IQAR) Universidad de Alcalá
- 28871-Alcala de Henares
- Spain
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121
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Sharutin VV, Sharutina OK, Novikov AS, Adonin SA. Substituent-dependent reactivity of triarylantimony(iii) toward I2: isolation of [Ar3SbI]+ salt. NEW J CHEM 2020. [DOI: 10.1039/d0nj02774j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The outcome of reactions of triarylantimony (Ar3Sb) with diiodine in benzene is strongly affected by the identity of the substituents.
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Affiliation(s)
| | | | - Alexander S. Novikov
- Saint Petersburg State University
- Institute of Chemistry
- 199034 Saint Petersburg
- Russia
| | - Sergey A. Adonin
- South Ural State University
- 454080 Chelyabinsk
- Russia
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
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122
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Suslonov VV, Eliseeva AA, Novikov AS, Ivanov DM, Dubovtsev AY, Bokach NA, Kukushkin VY. Tetrachloroplatinate(ii) anion as a square-planar tecton for crystal engineering involving halogen bonding. CrystEngComm 2020. [DOI: 10.1039/d0ce00576b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The tetrachloroplatinate(ii) anion behaves as a useful XB-accepting tecton toward sigma-hole-donating organohalide species.
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Affiliation(s)
- Vitalii V. Suslonov
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- Saint Petersburg
- Russian Federation
| | - Anastasiya A. Eliseeva
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- Saint Petersburg
- Russian Federation
| | - Alexander S. Novikov
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- Saint Petersburg
- Russian Federation
| | - Daniil M. Ivanov
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- Saint Petersburg
- Russian Federation
| | - Alexey Yu. Dubovtsev
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- Saint Petersburg
- Russian Federation
| | - Nadezhda A. Bokach
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- Saint Petersburg
- Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry
- Saint Petersburg State University
- Universitetskaya Nab. 7/9
- Saint Petersburg
- Russian Federation
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123
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Wang CG, Chong AML, Pan HM, Sarkar J, Tay XT, Goto A. Recent development in halogen-bonding-catalyzed living radical polymerization. Polym Chem 2020. [DOI: 10.1039/d0py00939c] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The development and applications of an organocatalyzed living radical polymerization via halogen-bonding catalysis, i.e., reversible complexation mediated polymerization (RCMP), are highlighted.
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Affiliation(s)
- Chen-Gang Wang
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- 637371 Singapore
| | - Amerlyn Ming Liing Chong
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- 637371 Singapore
| | - Houwen Matthew Pan
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- 637371 Singapore
| | - Jit Sarkar
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- 637371 Singapore
| | - Xiu Ting Tay
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- 637371 Singapore
| | - Atsushi Goto
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- 637371 Singapore
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124
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Chiral Chalcogen Bond Donors Based on the 4,4'-Bipyridine Scaffold. Molecules 2019; 24:molecules24244484. [PMID: 31817814 PMCID: PMC6943643 DOI: 10.3390/molecules24244484] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/29/2019] [Accepted: 12/03/2019] [Indexed: 02/06/2023] Open
Abstract
Organocatalysis through chalcogen bonding (ChB) is in its infancy, as its proof-of-principle was only reported in 2016. Herein, we report the design and synthesis of new chiral ChB donors, as well as the catalytic activity evaluation of the 5,5′-dibromo-2,2′-dichloro-3-((perfluorophenyl)selanyl)-4,4′-bipyridine as organocatalyst. The latter is based on the use of two electron-withdrawing groups, a pentafluorophenyl ring and a tetrahalo-4,4′-bipyridine skeleton, as substituents at the selenium center. Atropisomery of the tetrahalo-4,4′-bipyridine motif provides a chiral environment to these new ChB donors. Their synthesis was achieved through either selective lithium exchange and trapping or a site-selective copper-mediated reaction. Pure enantiomers of the 3-selanyl-4,4′-bipyridine were obtained by high performance liquid chromatography enantioseparation on specific chiral stationary phase, and their absolute configuration was assigned by comparison of the measured and calculated electronic circular dichroism spectra. The capability of the selenium compound to participate in σ-hole-based interactions in solution was studied by 19F NMR. Even if no asymmetric induction has been observed so far, the new selenium motif proved to be catalytically active in the reduction of 2-phenylquinoline by Hantzsch ester.
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125
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Affiliation(s)
- Revannath L. Sutar
- Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstraße 150, Bochum, 44801, Germany
| | - Stefan M. Huber
- Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstraße 150, Bochum, 44801, Germany
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