1
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Puigcerver J, Marin-Luna M, Iglesias-Sigüenza J, Alajarin M, Martinez-Cuezva A, Berna J. Mechanically Planar-to-Point Chirality Transmission in [2]Rotaxanes. J Am Chem Soc 2024; 146:2882-2887. [PMID: 38266249 PMCID: PMC10859924 DOI: 10.1021/jacs.3c11611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
Herein we describe an effective transmission of chirality, from mechanically planar chirality to point chirality, in hydrogen-bonded [2]rotaxanes. A highly selective mono-N-methylation of one (out of four) amide N atom at the macrocyclic counterpart of starting achiral rotaxanes generates mechanically planar chirality. Followed by chiral resolution, both enantiomers were subjected to a base-promoted intramolecular cyclization, where their interlocked threads were transformed into new lactam moieties. As a matter of fact, the mechanically planar chiral information was effectively transferred to the resulting stereocenters (covalent chirality) of the newly formed heterocycles. Upon removing the entwined macrocycle, the final lactams were obtained with high enantiopurity.
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Affiliation(s)
- Julio Puigcerver
- Departamento
de Quimica Organica, Facultad de Quimica, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Marta Marin-Luna
- Departamento
de Quimica Organica, Facultad de Quimica, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Javier Iglesias-Sigüenza
- Departamento
de Quimica Organica and Centro de Innovacion en Quimica Avanzada (ORFEO-CINQA), Universidad de Sevilla, E-41012 Sevilla, Spain
| | - Mateo Alajarin
- Departamento
de Quimica Organica, Facultad de Quimica, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Alberto Martinez-Cuezva
- Departamento
de Quimica Organica, Facultad de Quimica, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Jose Berna
- Departamento
de Quimica Organica, Facultad de Quimica, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
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2
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de Jong J, Siegler MA, Wezenberg SJ. A Photoswitchable Macrocycle Controls Anion-Templated Pseudorotaxane Formation and Axle Relocalization. Angew Chem Int Ed Engl 2024; 63:e202316628. [PMID: 38059917 DOI: 10.1002/anie.202316628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 12/08/2023]
Abstract
Important biological processes, such as signaling and transport, are regulated by dynamic binding events. The development of artificial supramolecular systems in which binding between different components is controlled could help emulate such processes. Herein, we describe stiff-stilbene-containing macrocycles that can be switched between (Z)- and (E)-isomers by light, as demonstrated by UV/Vis and 1 H NMR spectroscopy. The (Z)-isomers can be effectively threaded by pyridinium halide axles to give pseudorotaxane complexes, as confirmed by 1 H NMR titration studies and single-crystal X-ray crystallography. The overall stability of these complexes can be tuned by varying the templating counteranion. However, upon light-induced isomerization to the (E)-isomer, the threading capability is drastically reduced. The axle component, in addition, can form a heterodimeric complex with a secondary isophthalamide host. Therefore, when all components are combined, light irradiation triggers axle exchange between the macrocycle and this secondary host, which has been monitored by 1 H NMR spectroscopy and simulated computationally.
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Affiliation(s)
- Jorn de Jong
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Maxime A Siegler
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
| | - Sander J Wezenberg
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
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3
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Puigcerver J, Alajarin M, Martinez-Cuezva A, Berna J. Modulating the shuttling motion of [2]rotaxanes built of p-xylylenediamine units through permethylation at the benzylic positions of the ring. Org Biomol Chem 2023; 21:9070-9075. [PMID: 37938860 DOI: 10.1039/d3ob01611k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
In this study, we show the effect of the gem-dimethyl substitution at the four benzylic carbons of the ring on the internal dynamics of two-station [2]rotaxanes. Such structural modification of the polyamide macrocycles promotes a drastic change of the internal dynamics as shown by variable-temperature (VT) 1H NMR experiments. We determined that the shuttling rates of the octamethylated macrocycle along a series of symmetrical threads were significantly faster compared to the non-substituted ring. This effect was particularly pronounced in the fumaramide-based system, in which the rate was 27 times faster than that of the model system.
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Affiliation(s)
- Julio Puigcerver
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, E-30100 Murcia, Spain.
| | - Mateo Alajarin
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, E-30100 Murcia, Spain.
| | - Alberto Martinez-Cuezva
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, E-30100 Murcia, Spain.
| | - Jose Berna
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, E-30100 Murcia, Spain.
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4
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Saura-Sanmartin A, Lopez-Sanchez J, Lopez-Leonardo C, Pastor A, Berna J. Exploring the Chemistry of the Mechanical Bond: Synthesis of a [2]Rotaxane through Multicomponent Reactions. JOURNAL OF CHEMICAL EDUCATION 2023; 100:3355-3363. [PMID: 37720524 PMCID: PMC10501439 DOI: 10.1021/acs.jchemed.3c00163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 07/10/2023] [Indexed: 09/19/2023]
Abstract
The synthesis of a [2]rotaxane through three- or five-component coupling reactions has been adapted to an organic chemistry experiment for upper-division students. The experimental procedure addresses the search for the most favorable reaction conditions for the synthesis of the interlocked compound, which is obtained in a yield of up to 71%. Moreover, the interlocked nature of the rotaxane is proven by NMR spectroscopy. The content of the sessions has been designed on the basis of a proactive methodology whereby upper-division undergraduate students have a dynamic role. The laboratory experience not only introduces students to the chemistry of the mechanical bond but also reinforces their previous knowledge of basic organic laboratory procedures and their skills with structural elucidation techniques such as NMR and FT-IR spectroscopies. The experiment has been designed in such a customizable way that both experimental procedures and laboratory material can be adapted to a wide range of undergraduate course curricula.
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Affiliation(s)
- Adrian Saura-Sanmartin
- Departamento de Química
Orgánica, Facultad de Química, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Jorge Lopez-Sanchez
- Departamento de Química
Orgánica, Facultad de Química, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Carmen Lopez-Leonardo
- Departamento de Química
Orgánica, Facultad de Química, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Aurelia Pastor
- Departamento de Química
Orgánica, Facultad de Química, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Jose Berna
- Departamento de Química
Orgánica, Facultad de Química, Regional Campus of International
Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
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5
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Saura-Sanmartin A. Light-responsive rotaxane-based materials: inducing motion in the solid state. Beilstein J Org Chem 2023; 19:873-880. [PMID: 37346498 PMCID: PMC10280056 DOI: 10.3762/bjoc.19.64] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/05/2023] [Indexed: 06/23/2023] Open
Abstract
Light-responsive rotaxane-based solid-state materials are ideal scaffolds in order to develop smart materials due to the properties provided by the mechanical bond, such as control over the dynamics of the components upon application of external stimuli. This perspective aims to highlight the relevance of these materials, by pointing out recent examples of photoresponsive materials prepared from a rotaxanated architecture in which motion of the counterparts and/or macroscopic motion of the interlocked materials are achieved. Although further development is needed, these materials are envisioned as privileged scaffolds which will be used for different advanced applications in the area of molecular machinery.
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Affiliation(s)
- Adrian Saura-Sanmartin
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
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6
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Joy F, Nizam A, Nair Y, Pillai R, Devasia J, Nagella P. Templating motifs of molecular axles in hydrogen bonding [2]rotaxanes: Synthesis and applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Lopez-Leonardo C, Saura-Sanmartin A, Marin-Luna M, Alajarin M, Martinez-Cuezva A, Berna J. Ring-to-Thread Chirality Transfer in [2]Rotaxanes for the Synthesis of Enantioenriched Lactams. Angew Chem Int Ed Engl 2022; 61:e202209904. [PMID: 35916122 DOI: 10.1002/anie.202209904] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 01/07/2023]
Abstract
The synthesis of chiral mechanically interlocked molecules has attracted a lot of attention in the last few years, with applications in different fields, such as asymmetric catalysis or sensing. Herein we describe the synthesis of orientational mechanostereoisomers, which include a benzylic amide macrocycle with a stereogenic center, and nonsymmetric N-(arylmethyl)fumaramides as the axis. The base-promoted cyclization of the initial fumaramide thread allows enantioenriched value-added compounds, such as lactams of different ring sizes and amino acids, to be obtained. The chiral information is effectively transmitted across the mechanical bond from the encircling ring to the interlocked lactam. High levels of enantioselectivity and full control of the regioselectivity of the final cyclic compounds are attained.
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Affiliation(s)
- Carmen Lopez-Leonardo
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Adrian Saura-Sanmartin
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Marta Marin-Luna
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Mateo Alajarin
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Alberto Martinez-Cuezva
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Jose Berna
- Departamento de Química Orgánica, Facultad de Química, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
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8
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Lopez-Leonardo C, Saura-Sanmartin A, Marin-Luna M, Alajarin M, Martinez-Cuezva A, Berna J. Ring‐to‐Thread Chirality Transfer in [2]Rotaxanes for the Synthesis of Enantioenriched Lactams. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Marta Marin-Luna
- Universidad de Murcia Química Orgánica Campus de Espinardo 30100 Murcia SPAIN
| | - Mateo Alajarin
- Universidad de Murcia Química Orgánica Campus de Espinardo 30100 Murcia SPAIN
| | | | - Jose Berna
- Universidad de Murcia Quimica Organica Campus de Espinardo 30100 Murcia SPAIN
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9
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Russell GM, Masai H, Terao J. Insulation of a coumarin derivative with [1]rotaxane to control solvation-induced effects in excited-state dynamics for enhanced luminescence. Phys Chem Chem Phys 2022; 24:15195-15200. [PMID: 35703560 DOI: 10.1039/d2cp02221d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A coumarin derivative bearing a [1]rotaxane structure with permethylated α-cyclodextrins suppressed unwanted solvation-induced effects and increased luminescent quantum yields in medium- and high-polarity solvents. The non-radiative decay was suppressed by the twist in the π-conjugated system and the radiative decay was enhanced by the suppression of the polarity-induced structural changes.
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Affiliation(s)
- Go M Russell
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo, 153-8902, Japan.
| | - Hiroshi Masai
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo, 153-8902, Japan. .,PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Jun Terao
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo, 153-8902, Japan.
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10
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Lopez-Sanchez J, Alajarin M, Pastor A, Berna J. Mechanically Interlocked Profragrances for the Controlled Release of Scents. J Org Chem 2021; 86:15045-15054. [PMID: 34597042 DOI: 10.1021/acs.joc.1c01725] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The synthesis of a series of interlocked profragrances and the study of the controlled release of the corresponding scents are reported. The structures of the profragrances are based on a [2]pseudorotaxane scaffold with a fumaramate thread derived from perfumery alcohols and a tetrabenzylamido ring. The delivery of the scents was accomplished by sequential thermal dethreading and further enzymatic hydrolysis. Alternatively, the dethreading can be achieved by increasing the polarity of the solvent or photochemical isomerization. The temperature of dethreading can be modulated by the steric demand of the ends of the thread, which allows the selection of different precursor structures depending on the desired rates of delivery. The inputs and outputs for the controlled release of the interlocked profragrances correspond to those of YES or AND logic gates.
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Affiliation(s)
- Jorge Lopez-Sanchez
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Mateo Alajarin
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Aurelia Pastor
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Jose Berna
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
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11
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Cherraben S, Scelle J, Hasenknopf B, Vives G, Sollogoub M. Precise Rate Control of Pseudorotaxane Dethreading by pH-Responsive Selectively Functionalized Cyclodextrins. Org Lett 2021; 23:7938-7942. [PMID: 34582212 DOI: 10.1021/acs.orglett.1c02940] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A family of cyclodextrins functionalized with zero, one, two, or six amines was shown to control the rate of their threading and dethreading on a molecular axle depending on the pH and their substitution pattern. The originality of this system lies in the rate control of the switch by operating the stimulus directly on the macrocycle.
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Affiliation(s)
- Sawsen Cherraben
- Sorbonne Université, CNRS UMR8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Jérémy Scelle
- Sorbonne Université, CNRS UMR8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Bernold Hasenknopf
- Sorbonne Université, CNRS UMR8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Guillaume Vives
- Sorbonne Université, CNRS UMR8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
| | - Matthieu Sollogoub
- Sorbonne Université, CNRS UMR8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, 75005 Paris, France
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12
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Chiang TH, Tsou CY, Chang YH, Lai CC, Cheng RP, Chiu SH. Using Slippage to Construct a Prototypical Molecular "Lock & Lock" Box. Org Lett 2021; 23:5787-5792. [PMID: 34240877 DOI: 10.1021/acs.orglett.1c01945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We report a new slippage system based on p-tert-butylbenzyl-terminated imidazolium ions and di(ethylene glycol)-containing macrocycles and their use as linking units for the construction of a prototypical molecular "Lock & Lock" box from a resorcinarene-based cavitand "bowl" and a porphyrin "cover". The multivalent structure with four slippage linkers provided the molecular box with high stability, yet the system dissociated into its two components upon application of suitable external stimuli.
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Affiliation(s)
- Ting-Hsuan Chiang
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Cheng-Yen Tsou
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Yu-Hsuan Chang
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Chien-Chen Lai
- Institute of Molecular Biology, National Chung Hsing University, 145 Xingda Road, South District, Taichung, Taiwan
| | - Richard P Cheng
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Sheng-Hsien Chiu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
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13
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Chan SM, Tang FK, Lam CY, Kwan CS, Hau SCK, Leung KCF. π-Stacking Stopper-Macrocycle Stabilized Dynamically Interlocked [2]Rotaxanes. Molecules 2021; 26:4704. [PMID: 34361858 PMCID: PMC8347712 DOI: 10.3390/molecules26154704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 07/30/2021] [Accepted: 08/01/2021] [Indexed: 11/16/2022] Open
Abstract
The synthesis of mechanically interlocked molecules is valuable due to their unique topologies. With π-stacking intercomponent interaction, e.g., phenanthroline and anthracene, novel [2]rotaxanes have been synthesized by dynamic imine clipping reaction. Their X-ray crystal structures indicate the π-stackings between the anthracene moiety (stopper) on the thread and the (hetero)aromatic rings at the macrocycle of the rotaxanes. Moreover, the length of glycol chains affects the extra π-stacking intercomponent interactions between the phenyl groups and the dimethoxy phenyl groups on the thread. Dynamic combinatorial library has shown at best 84% distribution of anthracene-threaded phenanthroline-based rotaxane, coinciding with the crystallography in that the additional π-stacking intercomponent interactions could increase the thermodynamic stability and selectivity of the rotaxanes.
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Affiliation(s)
- Sing-Ming Chan
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China; (S.-M.C.); (F.-K.T.); (C.-Y.L.); (C.-S.K.)
| | - Fung-Kit Tang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China; (S.-M.C.); (F.-K.T.); (C.-Y.L.); (C.-S.K.)
| | - Ching-Yau Lam
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China; (S.-M.C.); (F.-K.T.); (C.-Y.L.); (C.-S.K.)
| | - Chak-Shing Kwan
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China; (S.-M.C.); (F.-K.T.); (C.-Y.L.); (C.-S.K.)
| | - Sam C. K. Hau
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Ken Cham-Fai Leung
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, The Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, China; (S.-M.C.); (F.-K.T.); (C.-Y.L.); (C.-S.K.)
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14
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Saura‐Sanmartin A, Martinez‐Cuezva A, Marin‐Luna M, Bautista D, Berna J. Effective Encapsulation of C
60
by Metal–Organic Frameworks with Polyamide Macrocyclic Linkers. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100996] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Adrian Saura‐Sanmartin
- Departamento de Quimica Organica Facultad de Quimica Regional Campus of International Excellence “Campus Mare Nostrum” Universidad de Murcia 30100 Murcia Spain
| | - Alberto Martinez‐Cuezva
- Departamento de Quimica Organica Facultad de Quimica Regional Campus of International Excellence “Campus Mare Nostrum” Universidad de Murcia 30100 Murcia Spain
| | - Marta Marin‐Luna
- Departamento de Quimica Organica Facultad de Quimica Regional Campus of International Excellence “Campus Mare Nostrum” Universidad de Murcia 30100 Murcia Spain
| | - Delia Bautista
- Seccion Universitaria de Instrumentacion Científica (SUIC) Area Cientifica y Tecnica de Investigacion (ACTI) Universidad de Murcia 30100 Murcia Spain
| | - Jose Berna
- Departamento de Quimica Organica Facultad de Quimica Regional Campus of International Excellence “Campus Mare Nostrum” Universidad de Murcia 30100 Murcia Spain
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15
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Saura-Sanmartin A, Martinez-Cuezva A, Marin-Luna M, Bautista D, Berna J. Effective Encapsulation of C 60 by Metal-Organic Frameworks with Polyamide Macrocyclic Linkers. Angew Chem Int Ed Engl 2021; 60:10814-10819. [PMID: 33617658 DOI: 10.1002/anie.202100996] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/18/2021] [Indexed: 12/14/2022]
Abstract
A flexible benzylic amide macrocycle, functionalized with two carboxylic acid groups, was employed as the organic ligand for the preparation of robust copper(II)- and zinc(II)-based metal-organic frameworks. These polymers crystallized in the C2/m space group of the monoclinic crystal system, creating non-interpenetrated channels in one direction with an extraordinary solvent-accessible volume of 46 %. Unlike metal-organic rotaxane frameworks having benzylic amide macrocycles as linkers, the absence of the thread in these novel reticular materials causes a decrease of dimensionality and an improvement of pore size and dynamic guest adaptability. We studied the incorporation of fullerene C60 inside the adjustable pocket generated between two macrocycles connected to the same dinuclear clusters, occupying a remarkable 98 % of the cavities inside the network. The use of these materials as hosts for the selective recognition of different fullerenes was evaluated, mainly encapsulating the smaller size fullerene derivative in several mixtures of C60 and C70 .
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Affiliation(s)
- Adrian Saura-Sanmartin
- Departamento de Quimica Organica, Facultad de Quimica, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Alberto Martinez-Cuezva
- Departamento de Quimica Organica, Facultad de Quimica, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Marta Marin-Luna
- Departamento de Quimica Organica, Facultad de Quimica, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
| | - Delia Bautista
- Seccion Universitaria de Instrumentacion Científica (SUIC), Area Cientifica y Tecnica de Investigacion (ACTI), Universidad de Murcia, 30100, Murcia, Spain
| | - Jose Berna
- Departamento de Quimica Organica, Facultad de Quimica, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, 30100, Murcia, Spain
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16
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Martinez-Cuezva A, Pastor A, Marin-Luna M, Diaz-Marin C, Bautista D, Alajarin M, Berna J. Cyclization of interlocked fumaramides into β-lactams: experimental and computational mechanistic assessment of the key intercomponent proton transfer and the stereocontrolling active pocket. Chem Sci 2020; 12:747-756. [PMID: 34163808 PMCID: PMC8178992 DOI: 10.1039/d0sc05757f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A detailed mechanistic study of the diastereoselective CsOH-promoted cyclization of interlocked fumaramides to give β-lactams is described. The mechanistic analysis comprises the experimental evaluation of the structure-reactivity relationship for a wide range of fumaramides [2]rotaxanes (Hammet-plots), KIE studies with deuterium-labelled interlocked fumaramides and computational analysis of two alternative mechanistic pathways for the cyclization process. The obtained results confirm that: (a) the rate-determining step is the deprotonation of the N-benzyl group of the thread by the amidate group of the macrocycle generated by the external base, (b) the polyamide macrocycle plays an important role not only as activating element but also as the stereodifferenciating factor responsible for the observed diastereoselection and (c) the higher flexibility of the adamantyl core speeds up the cyclization process in diadamantyl-derived rotaxanes. A mechanistic study of the diastereoselective cyclization of interlocked fumaramides to give β-lactams unveils the key factors for successfully taming the process.![]()
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Affiliation(s)
- Alberto Martinez-Cuezva
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Aurelia Pastor
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Marta Marin-Luna
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Carmen Diaz-Marin
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | | | - Mateo Alajarin
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
| | - Jose Berna
- Department of Organic Chemistry, Faculty of Chemistry, University of Murcia, Regional Campus of International Excellence "Campus Mare Nostrum" 30100 Murcia Spain
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17
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Groppi J, Casimiro L, Canton M, Corra S, Jafari‐Nasab M, Tabacchi G, Cavallo L, Baroncini M, Silvi S, Fois E, Credi A. Precision Molecular Threading/Dethreading. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jessica Groppi
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
| | - Lorenzo Casimiro
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica “G. Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Martina Canton
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica Industriale “Toso Montanari” Università di Bologna viale del Risorgimento 4 40136 Bologna Italy
| | - Stefano Corra
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Scienze e Tecnologie Agro-alimentari Università di Bologna viale Fanin 44 40127 Bologna Italy
| | - Mina Jafari‐Nasab
- Dipartimento di Chimica “G. Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Gloria Tabacchi
- Dipartimento di Scienza ed Alta Tecnologia and INSTM Università dell'Insubria via Valleggio 11 22100 Como Italy
| | - Luigi Cavallo
- KAUST Catalysis Center King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia
| | - Massimo Baroncini
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Scienze e Tecnologie Agro-alimentari Università di Bologna viale Fanin 44 40127 Bologna Italy
| | - Serena Silvi
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica “G. Ciamician” Università di Bologna via Selmi 2 40126 Bologna Italy
| | - Ettore Fois
- Dipartimento di Scienza ed Alta Tecnologia and INSTM Università dell'Insubria via Valleggio 11 22100 Como Italy
| | - Alberto Credi
- CLAN-Center for Light Activated Nanostructures Istituto ISOF-CNR via Gobetti 101 40129 Bologna Italy
- Dipartimento di Chimica Industriale “Toso Montanari” Università di Bologna viale del Risorgimento 4 40136 Bologna Italy
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18
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Groppi J, Casimiro L, Canton M, Corra S, Jafari‐Nasab M, Tabacchi G, Cavallo L, Baroncini M, Silvi S, Fois E, Credi A. Precision Molecular Threading/Dethreading. Angew Chem Int Ed Engl 2020; 59:14825-14834. [PMID: 32396687 PMCID: PMC7496742 DOI: 10.1002/anie.202003064] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Indexed: 12/12/2022]
Abstract
The general principles guiding the design of molecular machines based on interlocked structures are well known. Nonetheless, the identification of suitable molecular components for a precise tuning of the energetic parameters that determine the mechanical link is still challenging. Indeed, what are the reasons of the "all-or-nothing" effect, which turns a molecular "speed-bump" into a stopper in pseudorotaxane-based architectures? Here we investigate the threading and dethreading processes for a representative class of molecular components, based on symmetric dibenzylammonium axles and dibenzo[24]crown-8 ether, with a joint experimental-computational strategy. From the analysis of quantitative data and an atomistic insight, we derive simple rules correlating the kinetic behaviour with the substitution pattern, and provide rational guidelines for the design of modules to be integrated in molecular switches and motors with sophisticated dynamic features.
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Affiliation(s)
- Jessica Groppi
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
| | - Lorenzo Casimiro
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica “G. Ciamician”Università di Bolognavia Selmi 240126BolognaItaly
| | - Martina Canton
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica Industriale “Toso Montanari”Università di Bolognaviale del Risorgimento 440136BolognaItaly
| | - Stefano Corra
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Scienze e Tecnologie Agro-alimentariUniversità di Bolognaviale Fanin 4440127BolognaItaly
| | - Mina Jafari‐Nasab
- Dipartimento di Chimica “G. Ciamician”Università di Bolognavia Selmi 240126BolognaItaly
| | - Gloria Tabacchi
- Dipartimento di Scienza ed Alta Tecnologia and INSTMUniversità dell'Insubriavia Valleggio 1122100ComoItaly
| | - Luigi Cavallo
- KAUST Catalysis CenterKing Abdullah University of Science and TechnologyThuwal23955-6900Saudi Arabia
| | - Massimo Baroncini
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Scienze e Tecnologie Agro-alimentariUniversità di Bolognaviale Fanin 4440127BolognaItaly
| | - Serena Silvi
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica “G. Ciamician”Università di Bolognavia Selmi 240126BolognaItaly
| | - Ettore Fois
- Dipartimento di Scienza ed Alta Tecnologia and INSTMUniversità dell'Insubriavia Valleggio 1122100ComoItaly
| | - Alberto Credi
- CLAN-Center for Light Activated NanostructuresIstituto ISOF-CNRvia Gobetti 10140129BolognaItaly
- Dipartimento di Chimica Industriale “Toso Montanari”Università di Bolognaviale del Risorgimento 440136BolognaItaly
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19
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Lagesse N, Pisciottani L, Douarre M, Godard P, Kauffmann B, Martí-Centelles V, McClenaghan ND. Five-component, one-pot synthesis of an electroactive rotaxane comprising a bisferrocene macrocycle. Beilstein J Org Chem 2020; 16:1564-1571. [PMID: 32704322 PMCID: PMC7356209 DOI: 10.3762/bjoc.16.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/23/2020] [Indexed: 11/23/2022] Open
Abstract
The templated clipping of a ferrocene-grafted isophthalic acid derivative to encircle a hydrogen-bonding axle through the reaction with 1,4-bis(aminomethyl)benzene is described. The constituent electroactive macrocycle of the resultant [2]rotaxane is a homologue of the versatile benchmark tetraamide variant developed by Leigh and co-workers. The relative templating effect of different hydrogen-bonding motifs in rotaxane and pseudorotaxane generation is compared, with yields varying from 0 to 41%. The electrochemical properties and single crystal X-ray structure of a doubly ferrocene-decorated [2]rotaxane are further reported.
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Affiliation(s)
- Natalie Lagesse
- Institut des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, Talence, France
| | - Luca Pisciottani
- Institut des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, Talence, France
| | - Maxime Douarre
- Institut des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, Talence, France
| | - Pascale Godard
- Institut des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, Talence, France
| | - Brice Kauffmann
- Institut Européen de Chimie et Biologie, CNRS UMS 3033, INSERM US001, University of Bordeaux, Pessac, France
| | | | - Nathan D McClenaghan
- Institut des Sciences Moléculaires, CNRS UMR 5255, University of Bordeaux, Talence, France
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20
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Martinez-Cuezva A, Saura-Sanmartin A, Alajarin M, Berna J. Mechanically Interlocked Catalysts for Asymmetric Synthesis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02032] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alberto Martinez-Cuezva
- Departamento de Quı́mica Orgánica, Facultad de Quı́mica, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Adrian Saura-Sanmartin
- Departamento de Quı́mica Orgánica, Facultad de Quı́mica, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Mateo Alajarin
- Departamento de Quı́mica Orgánica, Facultad de Quı́mica, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
| | - Jose Berna
- Departamento de Quı́mica Orgánica, Facultad de Quı́mica, Regional Campus of International Excellence “Campus Mare Nostrum”, Universidad de Murcia, E-30100 Murcia, Spain
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21
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Lopez-Leonardo C, Martinez-Cuezva A, Bautista D, Alajarin M, Berna J. Homo and heteroassembly of amide-based [2]rotaxanes using α,α′-dimethyl-p-xylylenediamines. Chem Commun (Camb) 2019; 55:6787-6790. [DOI: 10.1039/c9cc02701g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective formation of [2]rotaxanes affords two out of seven possible interlocked isomers thanks to a marked conformational preference.
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Affiliation(s)
- C. Lopez-Leonardo
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | - A. Martinez-Cuezva
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | | | - M. Alajarin
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
| | - J. Berna
- Departamento de Química Orgánica
- Facultad de Química
- Regional Campus of International Excellence “Campus Mare Nostrum”
- Universidad de Murcia
- Murcia
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