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Ciogli A, Fochetti A, Sorato A, Fabrizi G, Matera N, Mazzanti A, Mancinelli M. Diaryl-Pyrano-Chromenes Atropisomers: Stereodynamics and Conformational Studies. Molecules 2023; 28:4915. [PMID: 37446580 DOI: 10.3390/molecules28134915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 07/15/2023] Open
Abstract
The dynamic scenario of di-aryls-pyrano-chromenes was investigated using DFT calculations. The symmetry of the chromene scaffold and the presence of two ortho-substituted aryls substituents can generate two syn/anti diastereoisomers and conformational enantiomers with different rotational barriers. The relative conformations and configurations were derived using NOESY-1D experiments. Depending on the energies related to the conformational exchange, the experimental energy barriers were determined through Dynamic NMR, Dynamic HPLC or kinetic studies. The atropisomeric pairs were resolved in the latter scenario, and their absolute configuration was assigned using the ECD/TD-DFT method.
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Affiliation(s)
- Alessia Ciogli
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Andrea Fochetti
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Andrea Sorato
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Giancarlo Fabrizi
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Roma, Italy
| | - Nunzio Matera
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
| | - Andrea Mazzanti
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
| | - Michele Mancinelli
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
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Sonet D, Cayla M, Méreau R, Morvan E, Lacoudre A, Vanthuyne N, Albalat M, Bassani DM, Scalabre A, Pouget E, Bibal B. Chiral Anthranyl Trifluoromethyl Alcohols: Structures, Oxidative Dearomatization and Chiroptical Properties. Chemistry 2022; 28:e202202695. [PMID: 36316221 DOI: 10.1002/chem.202202695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Indexed: 11/05/2022]
Abstract
Chiral trifluoromethyl alcohol groups were introduced at the hindered ortho positions of 9,10-diphenylanthracenes to investigate their effects on the physical properties and reactivity towards oxidative dearomatization. In such compact structures, the position in different quadrants and the preferred orientation of the -CH(OH)CF3 groups were determined by the relative and absolute configurations of each stereoisomer, respectively. As a consequence, the stereochemistry governs the organization of the H-bonded molecules in single crystals (homochiral dimers vs ribbon), whereas in chlorinated solvents, they all behave as discrete compounds. Concerning their reactivity, the stereospecific dearomative oxidation of these molecules leads to 9,10-bis-spiro-isobenzofuran-anthracenes, when using organic single-electron transfer oxidants. The chiroptical properties of the alcohols and the corresponding dearomatized products were compared and showed an important modulation of the intensity.
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Affiliation(s)
- Dorian Sonet
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Mattéo Cayla
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Raphaël Méreau
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Estelle Morvan
- Institut Européen de Chimie et Biologie UAR3033 CNRS, University of Bordeaux, INSERM US001, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Aline Lacoudre
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Nicolas Vanthuyne
- Centrale Marseille, iSm2, Aix-Marseille Université, CNRS, 52 avenue Escadrille Normandie Niemen, 13013, Marseille, France
| | - Muriel Albalat
- Centrale Marseille, iSm2, Aix-Marseille Université, CNRS, 52 avenue Escadrille Normandie Niemen, 13013, Marseille, France
| | - Dario M Bassani
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Antoine Scalabre
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Emilie Pouget
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Brigitte Bibal
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
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Ehn M, Vassilev NG, Pašteka LF, Dangalov M, Putala M. Atropisomerism of 2,2′-Diaryl-1,1′-binaphthalenes Containing Three Stereogenic Axes: Experimental and Computational Study. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Deutman ABC, Woltinge T, Smits JMM, De Gelder R, Elemans JAAW, Nolte RJM, Rowan AE. Thermodynamics and kinetics of guest-induced switching between "basket handle" porphyrin isomers. Molecules 2014; 19:5278-300. [PMID: 24762966 PMCID: PMC6271905 DOI: 10.3390/molecules19045278] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 04/14/2014] [Accepted: 04/17/2014] [Indexed: 11/23/2022] Open
Abstract
The synthesis and switching properties of two “basket handle” porphyrin isomers is described. The cis-oriented meso-phenyl groups of these porphyrins are linked at their ortho-positons via benzocrown-ether-based spacers, which as a result of slow atropisomerization are located either on the same side of the porphyrin plane (cis), or on opposite sides (trans). In solution, the cis-linked isomer slowly isomerizes in the direction of the thermodynamically more stable trans-isomer. In the presence of viologen (N,N'-dialkyl-4,4'-bipyridinium) derivatives, which have different affinities for the two isomers, the isomerization equilibrium could be significantly influenced. In addition, the presence of these guests was found to enhance the rate of the switching process, which was suggested to be caused by favorable interactions between the positively charged guest and the crown ethers of the receptor, stabilizing the transition state energies of the isomerization reaction between the two isomers.
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Affiliation(s)
- Alexander B C Deutman
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Tim Woltinge
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Jan M M Smits
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - René De Gelder
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Johannes A A W Elemans
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
| | - Roeland J M Nolte
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands.
| | - Alan E Rowan
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands
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Lippert AR, Naganawa A, Keleshian VL, Bode JW. Synthesis of phototrappable shape-shifting molecules for adaptive guest binding. J Am Chem Soc 2011; 132:15790-9. [PMID: 20945902 DOI: 10.1021/ja107314p] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We have designed and synthesized oligosubstituted bullvalenes 1 and 2 as adaptive molecules that can change their shapes in order to bind tightly to a suitable guest. By incorporation of a photolabile o-nitroveratryloxycarbonate (NVOC) group into bullvalenes 1 and 2, tightly binding species can be selectively isolated from a population of hundreds of interconverting structural isomers. Spontaneous strain-assisted Cope rearrangements allow these shape-shifting molecules to exist in a dynamic equilibrium of configurationally distinct valence isomers, as revealed by dynamic NMR and HPLC studies. When NVOC bullvalenes 1 and 2 were exposed to UV light, the cleavage of the NVOC group resulted in a mixture of static isomers of the corresponding bullvalone. Binding studies of NVOC bisporphyrin bullvalene 1 demonstrated that the dynamic isomeric equilibrium shifted in the presence of C(60), favoring configurations with more favorable binding affinities. Irradiation of a mixture of 1 and C(60) with UV light and isolation of the major static isomer yielded an isomer of bisporphyrin bullvalone with a binding affinity for C(60) that was ∼2 times larger than that of the nonadapted isomer bisporphyrin bullvalone 41.
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Affiliation(s)
- Alexander R Lippert
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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Roussel C, Kaid-Slimane R, Andreoli F, Renaudin M, Vanthuyne N. Synthesis, chiral separation, and absolute configuration of bis-(N-aryl) atropisomeric triads: 1,2-Bis-[4-methyl-2-(thi)oxo-2,3-dihydrothiazol-3-yl]-benzene. Chirality 2009; 21:160-6. [DOI: 10.1002/chir.20599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7
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Kaik M, Gawroński J. Unprecedented selectivity in the formation of large-ring oligoimines from conformationally bistable chiral diamines. Org Lett 2007; 8:2921-4. [PMID: 16805517 DOI: 10.1021/ol060626f] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Stereoselective formation of large macrocycles in "click-type" reactions is a current challenge. Chiral macrocycles of differing size and shape (e.g., rectanglimine or loopimine) were selectively obtained by cyclocondensation of terephthalaldehyde or isophthalaldehyde with conformationally bistable chiral diamines derived from trans-1,2-diaminocyclohexane and aromatic dianhydrides. This opens new opportunities for the programmed synthesis of large-ring molecular assemblies.
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Affiliation(s)
- Magdalena Kaik
- Department of Chemistry, A. Mickiewicz University, Poznan, Poland
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Gorteau V, Bollot G, Mareda J, Matile S. Rigid-rod anion–π slides for multiion hopping across lipid bilayers. Org Biomol Chem 2007; 5:3000-12. [PMID: 17728867 DOI: 10.1039/b708337h] [Citation(s) in RCA: 155] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Shape-persistent oligo-p-phenylene-N,N-naphthalenediimide (O-NDI) rods are introduced as anion-pi slides for chloride-selective multiion hopping across lipid bilayers. Results from end-group engineering and covalent capture as O-NDI hairpins suggested that self-assembly into transmembrane O-NDI bundles is essential for activity. A halide topology VI (Cl > F > Br approximately I, Cl/Br approximately Cl/I > 7) implied strong anion binding along the anion-pi slides with relatively weak contributions from size exclusion (F >or= OAc). Anomalous mole fraction effects (AMFE) supported the occurrence of multiion hopping along the pi-acidic O-NDI rods. The existence of anion-pi interactions was corroborated by high-level ab initio and DFT calculations. The latter revealed positive NDI quadrupole moments far beyond the hexafluorobenzene standard. Computational studies further suggested that anion binding occurs at the confined, pi-acidic edges of the sticky NDI surface and is influenced by the nature of the phenyl spacer between two NDIs. With regard to methods development, a detailed analysis of the detection of ion selectivity with the HPTS assay including AMFE in vesicles is provided.
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Affiliation(s)
- Virginie Gorteau
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
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Gawronski J, Kaik M, Kwit M, Rychlewska U. Solvent induced folding of conformationally bistable helical imide triads. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.05.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Change in conformation upon complexation of double-armed terephthalamide hosts: dynamic molecular recognition of ditopic guests with strong CD signaling. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.01.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Degenhardt CF, Lavin JM, Smith MD, Shimizu KD. Conformationally Imprinted Receptors: Atropisomers with “Write”, “Save”, and “Erase” Recognition Properties. Org Lett 2005; 7:4079-81. [PMID: 16146356 DOI: 10.1021/ol051325t] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] An atropisomeric receptor with "write", "save", and "erase" recognition properties is presented. The receptor adopts a complementary conformation when heating in the presence of an ethyl adenine-9-acetate guest molecule. This complementary hydrogen bonding conformation is "saved" upon cooling to room temperature due to the reestablishment of restricted rotation and is stable even upon removal of the guest. Finally, the atropisomeric receptor can be "erased" by heating in the absence of the guest.
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Affiliation(s)
- Charles F Degenhardt
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
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Kawai H, Katoono R, Fujiwara K, Tsuji T, Suzuki T. Multipoint Recognition of Catecholamines by Hydrindacene-Based Receptors Accompanied by the Complexation-Induced Conformational Switching. Chemistry 2005; 11:815-24. [PMID: 15609375 DOI: 10.1002/chem.200400819] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The molecular recognition of catecholamines by hydrindacene-based receptors 1 and 2, as well as the durene-based receptor 3, and the guest-induced conformational changes are reported. These receptors selectively bind adrenaline and dopamine salts through the guests' ammonium group and 3-hydroxyl group on the aromatic ring. In the case of adrenaline, an additional hydrogen bond with a benzylic hydroxyl group is formed. In 2 % CD3CN/CDCl3, the association constants are of the order of 10(4) M(-1), which is much larger than with guests without the 3-hydroxyl groups (10(3) M(-1)). The two amide groups of receptor 1 can rotate freely around the C(aromatic)--C(amide) bond, whereas the tert-amide in 2 changes between two stable conformations at a slow enough rate to allow detection by (1)H NMR spectroscopy. In the absence of a guest molecule, the syn-conformer is less stable than the anti-conformer. On complex formation with adrenaline, the syn-conformer becomes dominant due to an intramolecular dipole-reversal effect in addition to multipoint hydrogen bonding.
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Affiliation(s)
- Hidetoshi Kawai
- Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan.
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Novikov PV, Malyshev OR, Lyssenko KA, Kostyanovsky RG. Resolution and racemization of nonbenzenoid atropenantiomers. MENDELEEV COMMUNICATIONS 2004. [DOI: 10.1070/mc2004v014n06abeh002049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Fristrup P, Tanner D, Norrby PO. Updating the asymmetric osmium-catalyzed dihydroxylation (AD) mnemonic: Q2MM modeling and new kinetic measurements. Chirality 2003; 15:360-8. [PMID: 12666245 DOI: 10.1002/chir.10214] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The mnemonic device for predicting stereoselectivities in the Sharp-less asymmetric dihydroxylation (AD) reaction has been updated based on extensive computational studies. Kinetic measurements from competition reactions validate the new proposal. The interactions responsible for the high stereoselectivity in the title reaction are analyzed in detail and mapped onto the mnemonic device.
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Affiliation(s)
- Peter Fristrup
- Department of Chemistry, Organic Chemistry, Technical University of Denmark, Lyngby, Denmark
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