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Miton L, Antonetti E, Poujade M, Dutasta JP, Nava P, Martinez A, Cotelle Y. Self-assembled tetrazine cryptophane for ion pair recognition and guest release by cage disassembly. Chem Commun (Camb) 2024; 60:5217-5220. [PMID: 38656223 DOI: 10.1039/d4cc01421a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Hereby, we describe the synthesis of a self-assembled syn-cryptophane using dynamic nucleophilic aromatic substitution of tetrazines. 1H NMR cage titrations reveal that the tetramethylammonium cation binds under slow exchange conditions while counter-anions show a fast exchange regime. Finally, the cryptophane can be disassembled by the addition of thiols allowing guest release.
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Affiliation(s)
- Louise Miton
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, UMR 7313, 13397 Marseille, France.
| | - Elise Antonetti
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, UMR 7313, 13397 Marseille, France.
| | - Marie Poujade
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, UMR 7313, 13397 Marseille, France.
| | - Jean-Pierre Dutasta
- ENS Lyon, CNRS, Laboratoire de Chimie, UMR 5182, 46 Allée d'Italie, 69364 Lyon, France
| | - Paola Nava
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, UMR 7313, 13397 Marseille, France.
| | - Alexandre Martinez
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, UMR 7313, 13397 Marseille, France.
| | - Yoann Cotelle
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, UMR 7313, 13397 Marseille, France.
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Benchouaia R, Doll M, Berthault P, Chighine K, Léonce E, Brotin T, Rycke ND. A Water-Soluble Cryptophane Decorated with Aromatic Amine Groups Shows High Affinity for Cesium and Thallium(I). J Org Chem 2024; 89:4560-4568. [PMID: 38484322 DOI: 10.1021/acs.joc.3c02791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
An anti-cryptophane decorated with three aromatic amine and three phenol groups shows a high affinity for the cesium and thallium cations in LiOH/H2O (0.1 M). The formation of the complexes was studied by 133Cs NMR and by 205Tl NMR spectroscopy at different temperatures. Characteristic signals for caged cesium and thallium were observed at a high field with respect to the signals of the free cations present in the bulk. Isothermal titration calorimetric experiments performed in LiOH/H2O (0.1 M) and NaOH/KCl buffer (pH = 13) allowed us to determine the parameter of complexation and to ascertain the high affinity of this cryptophane for cesium and thallium. A comparison with other cryptophanes that bind these two cations shows that the introduction of nitrogen atoms into the cryptophane backbone has an effect on the binding properties. The affinity for cesium and thallium(I) ions is in the following order of substitution: OH > NH2 > OCH2COOH. This study paves the way to the design of new efficient host molecules for the extraction of these two cations in aqueous solution.
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Affiliation(s)
- Rajaa Benchouaia
- ENS de Lyon, CNRS, UMR 5182, Laboratoire de Chimie, Univ Lyon, Lyon 69342, France
| | - Martin Doll
- ENS de Lyon, CNRS, UMR 5182, Laboratoire de Chimie, Univ Lyon, Lyon 69342, France
| | - Patrick Berthault
- CEA, CNRS, Nanoscience and Innovation for Materials, Biomedicine and Energy, University Paris Saclay, Gif-sur-Yvette 91191, France
| | - Kévin Chighine
- CEA, CNRS, Nanoscience and Innovation for Materials, Biomedicine and Energy, University Paris Saclay, Gif-sur-Yvette 91191, France
| | - Estelle Léonce
- CEA, CNRS, Nanoscience and Innovation for Materials, Biomedicine and Energy, University Paris Saclay, Gif-sur-Yvette 91191, France
| | - Thierry Brotin
- ENS de Lyon, CNRS, UMR 5182, Laboratoire de Chimie, Univ Lyon, Lyon 69342, France
| | - Nicolas De Rycke
- ENS de Lyon, CNRS, UMR 5182, Laboratoire de Chimie, Univ Lyon, Lyon 69342, France
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Highly chemo- and regioselective synthesis and subsequent directional catalyst-free transformation of enantiopure bioxirane derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Li C, Manick AD, Jean M, Albalat M, Vanthuyne N, Dutasta JP, Bugaut X, Chatelet B, Martinez A. Hemicryptophane Cages with a C1-Symmetric Cyclotriveratrylene Unit. J Org Chem 2021; 86:15055-15062. [PMID: 34597053 DOI: 10.1021/acs.joc.1c01731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Two new hemicryptophanes combining a cyclotriveratrylene unit with either an aminotrisamide or a tris(2-aminoethyl)amine (tren) moiety have been synthesized. Although a conventional synthesis approach was used, the molecular cages obtained are devoid of the expected C3 symmetry. NMR analyses and X-ray crystal structure determination showed that these hemicryptophanes exhibited C1 symmetry due to the unusual arrangement of the substituents of the cyclotriveratrylene unit. This unprecedented arrangement is related to a change in the regioselectivity of the Friedel-Crafts reactions that led to the CTV cap. This constitutes an original approach to access enantiopure chiral molecular cages with low symmetry.
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Affiliation(s)
- Chunyang Li
- Aix Marseille Univ, CNRS, Centrale Marseille iSm2, 13284 Marseille, France
| | | | - Marion Jean
- Aix Marseille Univ, CNRS, Centrale Marseille iSm2, 13284 Marseille, France
| | - Muriel Albalat
- Aix Marseille Univ, CNRS, Centrale Marseille iSm2, 13284 Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS, Centrale Marseille iSm2, 13284 Marseille, France
| | - Jean-Pierre Dutasta
- Laboratoire de Chimie, École Normale Supérieure de Lyon, CNRS, 46, Allée d'Italie, F-69364 Lyon, France
| | - Xavier Bugaut
- Aix Marseille Univ, CNRS, Centrale Marseille iSm2, 13284 Marseille, France
| | - Bastien Chatelet
- Aix Marseille Univ, CNRS, Centrale Marseille iSm2, 13284 Marseille, France
| | - Alexandre Martinez
- Aix Marseille Univ, CNRS, Centrale Marseille iSm2, 13284 Marseille, France
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Baydoun O, Buffeteau T, Brotin T. Enantiopure cryptophane derivatives: Synthesis and chiroptical properties. Chirality 2021; 33:562-596. [PMID: 34464474 DOI: 10.1002/chir.23347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 01/30/2023]
Abstract
This review addresses the synthesis of enantiopure cryptophane and the study of their chiroptical properties. Cryptophane derivatives represent an important class of macrocyclic compounds that can bind a large range of species in solution under different conditions. The overwhelming majority of these host molecules is chiral, and their chiroptical properties have been thoroughly investigated. The first part of this review is dedicated to the optical resolution and the synthesis of enantiopure cryptophane derivatives. In a second part, the study of the chiroptical properties of these molecular hosts by different techniques such as electronic and vibrational circular dichroism and Raman optical activity is detailed. These techniques allow the determination of the absolute configuration of cryptophane derivatives and provide useful information about their conformation in different conditions.
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Affiliation(s)
- Orsola Baydoun
- Laboratoire de Chimie, Ens de Lyon, CNRS UMR 5182, Lyon, France
| | - Thierry Buffeteau
- Institut des Sciences Moléculaires, CNRS UMR 5255, Bordeaux University, Talence, France
| | - Thierry Brotin
- Laboratoire de Chimie, Ens de Lyon, CNRS UMR 5182, Lyon, France
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Qiu G, Nava P, Colomban C, Martinez A. Control and Transfer of Chirality Within Well-Defined Tripodal Supramolecular Cages. Front Chem 2020; 8:599893. [PMID: 33240860 PMCID: PMC7670063 DOI: 10.3389/fchem.2020.599893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 09/29/2020] [Indexed: 11/13/2022] Open
Abstract
The development of new strategies to turn achiral artificial hosts into highly desirable chiral receptors is a crucial challenge in order to advance the fields of asymmetric transformations and enantioselective sensing. Over the past few years, C3 symmetrical cages have emerged as interesting class of supramolecular hosts that have been reported as efficient scaffolds for chirality dynamics (such as generation, control, and transfer). On this basis, this mini review, which summarizes the existing examples of chirality control and propagation in tripodal supramolecular cages, aims at discussing the benefits and perspectives of this approach.
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Affiliation(s)
- Gege Qiu
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Paola Nava
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Cédric Colomban
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
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