1
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Mu Q, Tian W, Zhang J, Li R, Ji Y. Nanocrystalline Porous Materials for Chiral Separation: Synthesis, Mechanisms, and Applications. Anal Chem 2024; 96:7864-7879. [PMID: 38320090 DOI: 10.1021/acs.analchem.3c01178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Affiliation(s)
- Qixuan Mu
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
| | - Wanting Tian
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
| | - Jiale Zhang
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
| | - Ruijun Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
| | - Yibing Ji
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
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2
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Lago-Silva M, Fernández-Míguez M, Rodríguez R, Quiñoá E, Freire F. Stimuli-responsive synthetic helical polymers. Chem Soc Rev 2024; 53:793-852. [PMID: 38105704 DOI: 10.1039/d3cs00952a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Synthetic dynamic helical polymers (supramolecular and covalent) and foldamers share the helix as a structural motif. Although the materials are different, these systems also share many structural properties, such as helix induction or conformational communication mechanisms. The introduction of stimuli responsive building blocks or monomer repeating units in these materials triggers conformational or structural changes, due to the presence/absence of the external stimulus, which are transmitted to the helix resulting in different effects, such as assymetry amplification, helix inversion or even changes in the helical scaffold (elongation, J/H helical aggregates). In this review, we show through selected examples how different stimuli (e.g., temperature, solvents, cations, anions, redox, chiral additives, pH or light) can alter the helical structures of dynamic helical polymers (covalent and supramolecular) and foldamers acting on the conformational composition or molecular structure of their components, which is also transmitted to the macromolecular helical structure.
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Affiliation(s)
- María Lago-Silva
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Manuel Fernández-Míguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
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3
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Zhou L, He K, Kang SM, Zhou XY, Zou H, Liu N, Wu ZQ. Photoswitchable Enantioselective and Helix-Sense Controlled Living Polymerization. Angew Chem Int Ed Engl 2023; 62:e202310105. [PMID: 37957131 DOI: 10.1002/anie.202310105] [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: 07/17/2023] [Revised: 10/28/2023] [Accepted: 11/13/2023] [Indexed: 11/15/2023]
Abstract
A pair of enantiomeric photoswitchable PdII catalysts, alkyne-PdII /LR-azo and alkyne-PdII /LS-azo , were prepared via the coordination of alkyne-PdII and azobenzene-modified phosphine ligands LR-azo and LS-azo . Owing to the cis-trans photoisomerization of the azobenzene moiety, alkyne-PdII /LR-azo and alkyne-PdII /LS-azo exhibited different polymerization activities, helix-sense selectivities, and enantioselectivities during the polymerization of isocyanide monomers under irradiation of different wavelength lights. Furthermore, the achiral isocyanide monomer A-1 could be polymerized efficiently using alkyne-PdII /LR-azo under dark condition in a living/controlled manner. Further, it generated single right-handed helical poly-A-1m (LR-azo ), confirmed by the circular dichroism spectra and atomic force microscopy images. However, the polymerization of A-1 almost could not be initiated under 420 nm light in identical conditions of dark condition. Moreover, the photoswitchable catalyst alkyne-PdII /LR-azo exhibited high enantioselectivity for the polymerization of the racemates of L-1 and D-1, respectively. D-1 was polymerized preferentially under dark condition with a D-1/L-1 rate ratio of 70, yielding single right-handed polyisocyanides. Additionally, reversible enantioselectivity was observed under 420 nm light using alkyne-PdII /LR-azo , and the calculated polymerization rate ratio of L-1/D-1 was 57 because of the isomerization of the azobenzene moiety of the catalyst. Furthermore, alkyne-PdII /LS-azo showed opposite enantioselectivity and helix-sense selectivity during the polymerization of the racemates of L-1 and D-1.
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Affiliation(s)
- Li Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui Province, 230009, China
| | - Kai He
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui Province, 230009, China
| | - Shu-Ming Kang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Xing-Yu Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui Province, 230009, China
| | - Hui Zou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui Province, 230009, China
| | - Na Liu
- The School of Pharmaceutical Sciences, Jilin University, 1266 Fujin Road, Changchun, Jilin 130021, P. R. China
| | - Zong-Quan Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
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4
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Qin Q, Li J, Dellemme D, Fossépré M, Barozzino-Consiglio G, Nekkaa I, Boborodea A, Fernandes AE, Glinel K, Surin M, Jonas AM. Dynamic self-assembly of supramolecular catalysts from precision macromolecules. Chem Sci 2023; 14:9283-9292. [PMID: 37712032 PMCID: PMC10498719 DOI: 10.1039/d3sc03133k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/15/2023] [Indexed: 09/16/2023] Open
Abstract
We show the emergence of strong catalytic activity at low concentrations in dynamic libraries of complementary sequence-defined oligomeric chains comprising pendant functional catalytic groups and terminal recognition units. In solution, the dynamic constitutional library created from pairs of such complementary oligomers comprises free oligomers, self-assembled di(oligomeric) macrocycles, and a virtually infinite collection of linear poly(oligomeric) chains. We demonstrate, on an exemplary catalytic system requiring the cooperation of no less than five chemical groups, that supramolecular di(oligomeric) macrocycles exhibit a catalytic turnover frequency ca. 20 times larger than the whole collection of linear poly(oligomers) and free chains. Molecular dynamics simulations and network analysis indicate that self-assembled supramolecular di(oligomeric) macrocycles are stabilized by different interactions, among which chain end pairing. We mathematically model the catalytic properties of such complex dynamic libraries with a small set of physically relevant parameters, which provides guidelines for the synthesis of oligomers capable to self-assemble into functionally-active supramolecular macrocycles over a larger range of concentrations.
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Affiliation(s)
- Qian Qin
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain Croix du Sud 1 L7.04.02, Louvain-la-Neuve Belgium
| | - Jie Li
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain Croix du Sud 1 L7.04.02, Louvain-la-Neuve Belgium
| | - David Dellemme
- Laboratory for Chemistry of Novel Materials, Université de Mons - UMONS Avenue Maistriau, 17 B-7000 Mons Belgium
| | - Mathieu Fossépré
- Laboratory for Chemistry of Novel Materials, Université de Mons - UMONS Avenue Maistriau, 17 B-7000 Mons Belgium
| | - Gabriella Barozzino-Consiglio
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain Croix du Sud 1 L7.04.02, Louvain-la-Neuve Belgium
| | - Imane Nekkaa
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain Croix du Sud 1 L7.04.02, Louvain-la-Neuve Belgium
| | | | - Antony E Fernandes
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain Croix du Sud 1 L7.04.02, Louvain-la-Neuve Belgium
- Certech rue Jules Bordet 45 7180 Seneffe Belgium
| | - Karine Glinel
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain Croix du Sud 1 L7.04.02, Louvain-la-Neuve Belgium
| | - Mathieu Surin
- Laboratory for Chemistry of Novel Materials, Université de Mons - UMONS Avenue Maistriau, 17 B-7000 Mons Belgium
| | - Alain M Jonas
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain Croix du Sud 1 L7.04.02, Louvain-la-Neuve Belgium
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5
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Morris DTJ, Clayden J. Screw sense and screw sensibility: communicating information by conformational switching in helical oligomers. Chem Soc Rev 2023; 52:2480-2496. [PMID: 36928473 PMCID: PMC10068589 DOI: 10.1039/d2cs00982j] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Indexed: 03/18/2023]
Abstract
Biological systems have evolved a number of different strategies to communicate information on the molecular scale. Among these, the propagation of conformational change is among the most important, being the means by which G-protein coupled receptors (GPCRs) use extracellular signals to modulate intracellular processes, and the way that opsin proteins translate light signals into nerve impulses. The developing field of foldamer chemistry has allowed chemists to employ conformationally well-defined synthetic structures likewise to mediate information transfer, making use of mechanisms that are not found in biological contexts. In this review, we discuss the use of switchable screw-sense preference as a communication mechanism. We discuss the requirements for functional communication devices, and show how dynamic helical foldamers derived from the achiral monomers such as α-aminoisobutyric acid (Aib) and meso-cyclohexane-1,2-diamine fulfil them by communicating information in the form of switchable screw-sense preference. We describe the various stimuli that can be used to switch screw sense, and explore the way that propagation of the resulting conformational preference in a well-defined helical molecule allows screw sense to control chemical events remote from a source of information. We describe the operation of these conformational switches in the membrane phase, and outline the progress that has been made towards using conformational switching to communicate between the exterior and interior of a phospholipid vesicle.
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Affiliation(s)
- David T J Morris
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
| | - Jonathan Clayden
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
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6
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Zou H, Tai S, Zhao SY, Zhou L, Liu N, Wu ZQ. Facile preparation of optically active helical polycarbenes with salicylate substituents and their postpolymerization modification. Chem Commun (Camb) 2023; 59:4201-4204. [PMID: 36938750 DOI: 10.1039/d3cc00237c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Optically active helical polycarbenes were constructed through the living and controlled helix-sense-selective polymerization (HSSP) of methyl salicylate modified diazoacetate monomer catalysed via π-allylPdCl with chiral phosphine ligands. The obtained helical polycarbenes could undergo postpolymerization modification to afford functional polycarbenes efficiently.
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Affiliation(s)
- Hui Zou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui Province 230009, China.
| | - Shan Tai
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui Province 230009, China.
| | - Shu-Yang Zhao
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui Province 230009, China.
| | - Li Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui Province 230009, China.
| | - Na Liu
- The School of Pharmaceutical Sciences, Jilin University, 1266 Fujin Road, Changchun, Jilin Province 130021, China.
| | - Zong-Quan Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
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7
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Mayer LC, Heitsch S, Trapp O. Nonlinear Effects in Asymmetric Catalysis by Design: Concept, Synthesis, and Applications. Acc Chem Res 2022; 55:3345-3361. [PMID: 36351215 DOI: 10.1021/acs.accounts.2c00557] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Asymmetric synthesis constitutes a key technology for the preparation of enantiomerically pure compounds as well as for the selective control of individual stereocenters in the synthesis of complex compounds. It is thus of extraordinary importance for the synthesis of chiral drugs, dietary supplements, flavors, and fragrances, as well as novel materials with tunable and reconfigurable chiroptical properties or the assembly of complex natural products. Typically, enantiomerically pure catalysts are used for this purpose. To prepare enantiomerically pure ligands or organocatalysts, one can make use of the natural chiral pool. Ligands and organocatalysts with an atropisomeric biphenyl and binaphthyl system have become popular, as they are configurationally stable and contain a C2-symmetric skeleton, which has been found to be particularly privileged. For catalysts with opposite configurations, both product enantiomers can be obtained. Configurationally flexible biphenyl systems initially appeared to be unsuitable for this purpose, as they racemize after successful enantiomer separation and thus are neither storable nor afford a reproducible enantioselectivity. However, there are strategies that exploit the dynamics of such ligands to stereoconvergently enrich one of the catalyst enantiomers. This can be achieved, for example, by coordinating an enantiomerically pure additive to a ligand-metal complex, which results in deracemization of the configurationally flexible biphenyl system, thereby enriching the thermodynamically preferred diastereomer. In this Account, we present our strategy to design stereochemically flexible catalysts that combine the properties of supramolecular recognition, stereoconvergent alignment, and catalysis. Such systems are capable to recognize the chirality of the target product, leading to an increase in enantioselectivity during asymmetric catalysis. We have systematically developed and investigated these smart catalyst systems and have found ways to specifically design and synthesize them for various applications. In addition to (i) reaction product-induced chiral amplification, we have developed systems with (ii) intermolecular and (iii) intramolecular recognition, and successfully applied them in asymmetric catalysis. Our results pave the way for new applications such as temperature-controlled enantioselectivity, controlled inversion of enantioselectivity with the same chirality of the recognition unit, generation of positive nonlinear effects, and targeted design of autocatalytic systems through dynamic formation of transient catalysts. Understanding such systems is of enormous importance for catalytic processes leading to symmetry breaking and amplification of small imbalances of enantiomers and offer a possible explanation of homochirality of biological systems. In addition, we are learning how to target supramolecular interactions to enhance enantioselectivities in asymmetric catalysis through secondary double stereocontrol. Configurationally flexible catalysts will enable future resource-efficient development of asymmetric syntheses, as enantioselectivities can be fully switched by stereoselective alignment of the stereochemically flexible ligand core on demand.
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Affiliation(s)
- Lena C Mayer
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Simone Heitsch
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Oliver Trapp
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
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8
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Kang X, Stephens ER, Spector-Watts BM, Li Z, Liu Y, Liu L, Cui Y. Challenges and opportunities for chiral covalent organic frameworks. Chem Sci 2022; 13:9811-9832. [PMID: 36199638 PMCID: PMC9431510 DOI: 10.1039/d2sc02436e] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/04/2022] [Indexed: 11/21/2022] Open
Abstract
As highly versatile crystalline porous materials, covalent organic frameworks (COFs) have emerged as an ideal platform for developing novel functional materials, attributed to their precise tunability of structure and functionality. Introducing chiral functional units into frameworks produces chiral COFs (CCOFs) with chiral superiorities through chirality conservation and conversion processes. This review summarises recent research progress in CCOFs, including synthetic methods, chiroptical characterisations, and their applications in asymmetric catalysis, chiral separation, and enantioselective recognition and sensing. Challenges and limitations are discussed to uncover future opportunities in CCOF research.
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Affiliation(s)
- Xing Kang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University Shanghai 200240 China
| | - Emily R Stephens
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University of Wellington Wellington 6012 New Zealand
| | - Benjamin M Spector-Watts
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University of Wellington Wellington 6012 New Zealand
| | - Ziping Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University Shanghai 200240 China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University Shanghai 200240 China
| | - Lujia Liu
- MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University of Wellington Wellington 6012 New Zealand
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing Zhejiang 314001 China
| | - Yong Cui
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University Shanghai 200240 China
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9
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Menke JM, Trapp O. Controlling the Enantioselectivity in an Adaptable Ligand by Biomimetic Intramolecular Interlocking. J Org Chem 2022; 87:11165-11171. [PMID: 35939525 DOI: 10.1021/acs.joc.2c01441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
For the preparation of chiral drugs, both stereochemically stable and flexible catalysts in combination with chiral auxiliaries can be used. Here, chiral induction plays an important role in generating an enantiomerically pure catalyst. We demonstrate a successful approach to the spontaneous deracemization of tropos ligands for asymmetric catalysis. Three different constitutional isomers of a bisphosphinite ligand decorated with l-valine moieties (interaction units) linked to the flexible biphenyl system by a phenylene bridge for inducing a chiral switch were prepared. The substitution pattern's influence on the attached intermolecular recognition sites was systematically investigated. We can show that biomimetic intramolecular hydrogen bonding leads to a pronounced diastereoselective enrichment of one of the ligand stereoisomers. As a result, in the asymmetric Rh-catalyzed hydrogenation of prochiral olefins using these ligands, enantiomeric ratios of up to 95.8:4.2 (S) were obtained. Of particular note is the inversion of enantioselectivity relative to the previously reported BIBIPHOS-Rh catalyst due to the altered orientation of the biphenyl moiety from (Rax) to (Sax). The enantioselectivities achieved by appropriate intramolecular interlocking are remarkable for a tropos ligand/catalyst. The strategy presented here represents a powerful approach for the spontaneous alignment of tropos ligands, yielding high enantioselectivities in asymmetric catalysis.
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Affiliation(s)
- Jan-Michael Menke
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Oliver Trapp
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
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10
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Wang XQ, Wu B, Bai YQ, Zhai XY, Zhou YG. CuH-Catalyzed Consecutive Hydrosilylation/Dehydrocoupling Polymerization of Difunctional Hydroxyketones with Dihydrosilanes for Syntheses of Chiral Poly(silyl ether)s. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Buchowicz W, Guńka PA, Buchalski P, Piszcz M, Buś S, Mrozowicz M, Mazur M, Wasilewski R. E/ Z Switchable Ring-Closing Metathesis in 1,1′-Bis(but-3-enyl)ferrocenes: Synthesis and Characterization of Axially Chiral ansa[6]-Ferrocenes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Włodzimierz Buchowicz
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Piotr A. Guńka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Piotr Buchalski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Michał Piszcz
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Sylwia Buś
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Michał Mrozowicz
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Maria Mazur
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
| | - Rafał Wasilewski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw 00-664, Poland
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12
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Tarrío JJ, Rodríguez R, Fernández B, Quiñoá E, Freire F. Dissymmetric Chiral Poly(diphenylacetylene)s: Secondary Structure Elucidation and Dynamic Luminescence. Angew Chem Int Ed Engl 2022; 61:e202115070. [DOI: 10.1002/anie.202115070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Indexed: 12/17/2022]
Affiliation(s)
- Juan José Tarrío
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Rafael Rodríguez
- WPI Nano Life Science Institute (WPI-NanoLSI) Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan
| | - Berta Fernández
- Departamento de Química Física Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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13
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Freire F, Tarrío JJ, Rodríguez R, Fernández B, Quiñoá E. Dissymmetric Chiral Poly(diphenylacetylene)s: Secondary Structure Elucidation and Dynamic Luminescence. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Felix Freire
- Universidade de Santiago de Compostela Centre for Research in Biological Chemistry and Molecular Materials Jenaro de la Fuente street s/n 15782 Santiago de Compostela SPAIN
| | - Juan José Tarrío
- Universidade de Santiago de Compostela - Campus de Santiago: Universidade de Santiago de Compostela CiQUS SPAIN
| | - Rafael Rodríguez
- Kanazawa University - Kakuma Campus: Kanazawa Daigaku Organic Chemsitry JAPAN
| | - Berta Fernández
- Universidade de Santiago de Compostela - Campus de Santiago: Universidade de Santiago de Compostela Physical Chemistry RWANDA
| | - Emilio Quiñoá
- Universidade de Santiago de Compostela - Campus de Santiago: Universidade de Santiago de Compostela CiQUS SPAIN
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14
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Aoun P, Hammoud A, Martínez-Aguirre MA, Bouteiller L, Raynal M. Asymmetric hydroamination with far fewer chiral species than copper centers achieved by tuning the structure of supramolecular helical catalysts. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02168k] [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
Mixing a BTA ligand (in black), a “sergeant” (in blue) and an achiral BTA additive (in orange) affords the amination product in 75% e.e. even though only one “sergeant” for ca. 10 copper centers are present in the supramolecular helical catalyst.
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Affiliation(s)
- Paméla Aoun
- CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, Sorbonne Université, 4 Place Jussieu, 75005 Paris, France
| | - Ahmad Hammoud
- CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, Sorbonne Université, 4 Place Jussieu, 75005 Paris, France
| | - Mayte A. Martínez-Aguirre
- CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, Sorbonne Université, 4 Place Jussieu, 75005 Paris, France
| | - Laurent Bouteiller
- CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, Sorbonne Université, 4 Place Jussieu, 75005 Paris, France
| | - Matthieu Raynal
- CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, Sorbonne Université, 4 Place Jussieu, 75005 Paris, France
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15
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Zhou L, He K, Liu N, Wu ZQ. Recent advances in asymmetric organocatalysis based on helical polymers. Polym Chem 2022. [DOI: 10.1039/d2py00483f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The significant research progress (from 2011 to 2021) in artificial helical polymers, such as polyacetylenes, polyisocyanides, polycarbenes, etc., in the fields of asymmetric organocatalysis is described.
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Affiliation(s)
- Li Zhou
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Kai He
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Na Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, Anhui Province, China
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
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16
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Fernández Z, Fernández B, Quiñoá E, Freire F. Merging Supramolecular and Covalent Helical Polymers: Four Helices Within a Single Scaffold. J Am Chem Soc 2021; 143:20962-20969. [PMID: 34860519 PMCID: PMC8679087 DOI: 10.1021/jacs.1c10327] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Indexed: 01/21/2023]
Abstract
Supramolecular and covalent polymers share multiple structural effects such as chiral amplification, helical inversion, sergeants and soldiers, or majority rules, among others. These features are related to the axial helical structure found in both types of materials, which are responsible for their properties. Herein a novel material combining information and characteristics from both fields of helical polymers, supramolecular (oligo(p-phenyleneethynylene) (OPE)) and covalent (poly(acetylene) (PA)), is presented. To achieve this goal, the poly(acetylene) must adopt a dihedral angle between conjugated double bonds (ω1) higher than 165°. In such cases, the tilting degree (Θ) between the OPE units used as pendant groups is close to 11°, like that observed in supramolecular helical arrays of these molecules. Polymerization of oligo[(p-phenyleneethynylene)n]phenylacetylene monomers (n = 1, 2) bearing L-decyl alaninate as the pendant group yielded the desired scaffolds. These polymers adopt a stretched and almost planar polyene helix, where the OPE units are arranged describing a helical structure. As a result, a novel multihelix material was prepared, the ECD spectra of which are dominated by the OPE axial array.
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Affiliation(s)
- Zulema Fernández
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidade de Santiago
de Compostela, 15782 Santiago de Compostela, Spain
| | - Berta Fernández
- Departamento
de Química Física, University
of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidade de Santiago
de Compostela, 15782 Santiago de Compostela, Spain
| | - Félix Freire
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidade de Santiago
de Compostela, 15782 Santiago de Compostela, Spain
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17
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Zhai X, Wang X, Wu B, Zhou Y. Copper‐Catalyzed
Si—H Bond Insertion Polymerization for Synthesis of Optically Active Polyesters Containing Silicon. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100569] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiao‐Yong Zhai
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Xiao‐Qing Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Bo Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Yong‐Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
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18
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Ikeda S, Takeda R, Fujie T, Ariki N, Nagata Y, Suginome M. Protected amino acids as a nonbonding source of chirality in induction of single-handed screw-sense to helical macromolecular catalysts. Chem Sci 2021; 12:8811-8816. [PMID: 34257881 PMCID: PMC8246299 DOI: 10.1039/d1sc01764k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/25/2021] [Indexed: 01/09/2023] Open
Abstract
Chiral nonbonding interaction with N-protected amino acid methyl esters used as chiral additives in achiral solvents allows dynamic induction of single-handed helical conformation in poly(quinoxaline-2,3-diyl)s (PQX) bearing only achiral substituents. Ac-l-Pro-OMe, for instance, allows induction of energy preference of 0.16 kJ mol-1 per monomer unit for the M-helical structure over the P-helix in t-butyl methyl ether (MTBE). With this new mode of screw-sense induction, homochiral screw-sense has been induced in virtually achiral poly(quinoxaline-2,3-diyl)s 1000-mer containing phosphine pendants (PQXphos). Use of PQXphos as a helically dynamic ligand along with Ac-Pro-OMe (l or d) as a chiral additive in MTBE allowed a highly enantioselective Suzuki-Miyaura coupling reaction with up to 95% enantiomeric excess.
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Affiliation(s)
- Shoma Ikeda
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Ryohei Takeda
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Takaya Fujie
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Naoto Ariki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Yuuya Nagata
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
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19
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Hamada Y, Tokoro Y, Oyama T. Chiral Self‐Sorting of Diformylated
N
‐Hetero‐
ortho
‐phenylene Hexamers by Macrocyclization with Aromatic Diamines. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yoshihiro Hamada
- Department of Advanced Chemistry Faculty of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan
| | - Yuichiro Tokoro
- Department of Applied Chemistry School of Applied Science National Defense Academy of Japan 1-10-20 Hashirimizu Yokosuka Kanagawa 239-8686 Japan
| | - Toshiyuki Oyama
- Department of Advanced Chemistry Faculty of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan
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20
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Yamamoto T, Takahashi T, Murakami R, Ariki N, Suginome M. Asymmetric O-to-C Aryloxycarbonyl Migration of Indolyl Carbonates Using Single-Handed Dynamic Helical Polyquinoxalines Bearing 4-Aminopyridyl Groups as Chiral Nucleophilic Catalysts. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200369] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Takeshi Yamamoto
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takuya Takahashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Ryo Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Naoto Ariki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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21
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Feng JJ, Mao W, Zhang L, Oestreich M. Activation of the Si–B interelement bond related to catalysis. Chem Soc Rev 2021; 50:2010-2073. [DOI: 10.1039/d0cs00965b] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Covering the past seven years, this review comprehensively summarises the latest progress in the preparation and application of Si–B reagents, including the discussion of relevant reaction mechanisms.
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Affiliation(s)
- Jian-Jun Feng
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
- College of Chemistry and Chemical Engineering
| | - Wenbin Mao
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Liangliang Zhang
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
| | - Martin Oestreich
- Institut für Chemie
- Technische Universität Berlin
- 10623 Berlin
- Germany
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22
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Yin L, Duan H, Chen T, Qi D, Deng J. Amino-acid-substituted polyacetylene-based chiral core–shell microspheres: helix structure induction and application for chiral resolution and adsorption. Polym Chem 2021. [DOI: 10.1039/d1py01067k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The random coil polymer was first compounded with substrate and induced it into helical structure subsequently.
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Affiliation(s)
- Lijie Yin
- State Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People's Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Huimin Duan
- State Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People's Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Tao Chen
- State Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People's Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Dongming Qi
- State Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People's Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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23
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Yoshinaga Y, Yamamoto T, Suginome M. Enantioconvergent Cu-Catalyzed Intramolecular C-C Coupling at Boron-Bound C(sp 3) Atoms of α-Aminoalkylboronates Using a C1-Symmetrical 2,2'-Bipyridyl Ligand Attached to a Helically Chiral Macromolecular Scaffold. J Am Chem Soc 2020; 142:18317-18323. [PMID: 33063989 DOI: 10.1021/jacs.0c09080] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Enantioconvergent intramolecular coupling of α-(2-bromobenzoylamino)benzylboronic esters was achieved using a copper catalyst having helically chiral macromolecular bipyridyl ligand, PQXbpy. Racemic α-(2-bromobenzoylamino)benzylboronic esters were converted into (R)-configured 3-arylisoindolinones with high enantiopurity using right-handed helical PQXbpy as a chiral ligand in a toluene/CHCl3 mixed solvent. When enantiopure (R)- and (S)-configured boronates were separately reacted under the same reaction conditions, both afforded (R)-configured products through formal stereoinvertive and stereoretentive processes, respectively. From these results, a mechanism involving deracemization of organocopper intermediates in the presence of PQXbpy is assumed. PQXbpy switched its helical sense to left-handed when a toluene/1,1,2-trichloroethane mixed solvent was used, resulting in the formation of the corresponding (S)-products from the racemic starting material.
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Affiliation(s)
- Yukako Yoshinaga
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takeshi Yamamoto
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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24
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Trapp O, Scholtes JF. Asymmetric Induction and Amplification in Stereodynamic Catalytic Systems by Noncovalent Interactions. Synlett 2020. [DOI: 10.1055/a-1274-2777] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
AbstractThe local transmission of chiral information by noncovalent interactions is one of the most fundamental processes broadly found in nature, i.e. in complex biochemical systems. This review summarizes our accomplishments in investigating chiral induction in stereodynamic ligands and catalysts by weak intermolecular interactions. It includes our efforts to characterize numerous stereodynamic compounds in detail with respect to their thermodynamic and kinetic properties. Furthermore, many stereolabile ligands for enantioselective catalysis are described, where directed stereoinduction afforded highly enantio- or diastereoenriched catalysts for subsequent selective asymmetric transformations. Various approaches for the dynamic enrichment of one of the catalyst’s conformers are presented, such as noncovalent interaction of the ligand with a chiral environment or a chiral solute. Finally, successful chemical systems are presented in which a process of chiral induction can be coupled with an autoinductive mechanism triggered by the chirality of its own reaction product, realizing Nature-inspired feedback loops resulting in self-amplifying, enantioselective catalytic reactions.1 Introduction2 Mapping the Stereodynamic Landscape3 Chiral Induction by Noncovalent Interactions4 Autoinduction and Chiral Amplification5 Self-Alignment and Emergence of Chirality6 Conclusion
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25
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Wang XQ, Zhai XY, Wu B, Bai YQ, Zhou YG. Synthesis of Chiral Poly(silyl ether)s via CuH-Catalyzed Asymmetric Hydrosilylation Polymerization of Diketones with Silanes. ACS Macro Lett 2020; 9:969-973. [PMID: 35648609 DOI: 10.1021/acsmacrolett.0c00225] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The precise synthesis of chiral poly(silyl ether)s remains a challenge, in contrast to the well-studied preparation of poly(silyl ether)s. Herein, an unprecedented approach for the synthesis of optically active poly(silyl ether)s with main-chain chirality has been developed via CuH-catalyzed hydrosilylation polymerization of diketones and silanes. The polymerization features low catalyst loading, mild condition, and broad substrate scope, including a wide range of aromatic diketones and heteroaromatic diketones with excellent yields and enantioselectivities (up to 98% yield and 99% ee). Thermal analysis indicated chiral poly(silyl ether)s exhibit good thermal properties. These enantiomerically enriched poly(silyl ether)s with good thermal stability have a promising application in chiral separation.
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Affiliation(s)
- Xiao-Qing Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xiao-Yong Zhai
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Bo Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Yu-Qing Bai
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
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26
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Huang H, Duan H, Yin L, Qi D, Xue J, Zhang Y, Deng J. Macromolecular Chiral Amplification through a Random Coil to One-Handed Helix Transformation Induced by Metal Ion Coordination in an Aqueous Solution. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Huajun Huang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Huimin Duan
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Lijie Yin
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Dongming Qi
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education of the People’s Republic of China, School of Materials Science and Engineering & School of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jiadan Xue
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yingjie Zhang
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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27
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Pirenne V, Muriel B, Waser J. Catalytic Enantioselective Ring-Opening Reactions of Cyclopropanes. Chem Rev 2020; 121:227-263. [DOI: 10.1021/acs.chemrev.0c00109] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Vincent Pirenne
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
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28
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Cobos K, Rodríguez R, Domarco O, Fernández B, Quiñoá E, Riguera R, Freire F. Polymeric Helical Structures à la Carte by Rational Design of Monomers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00085] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Katherine Cobos
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Rafael Rodríguez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Olaya Domarco
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Berta Fernández
- Departamento de Química Física, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Emilio Quiñoá
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Félix Freire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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29
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Rodríguez R, Suárez‐Picado E, Quiñoá E, Riguera R, Freire F. A Stimuli‐Responsive Macromolecular Gear: Interlocking Dynamic Helical Polymers with Foldamers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915488] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Esteban Suárez‐Picado
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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30
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Rodríguez R, Suárez‐Picado E, Quiñoá E, Riguera R, Freire F. A Stimuli‐Responsive Macromolecular Gear: Interlocking Dynamic Helical Polymers with Foldamers. Angew Chem Int Ed Engl 2020; 59:8616-8622. [DOI: 10.1002/anie.201915488] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/07/2020] [Indexed: 01/11/2023]
Affiliation(s)
- Rafael Rodríguez
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Esteban Suárez‐Picado
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Emilio Quiñoá
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Ricardo Riguera
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Félix Freire
- Centro Singular de investigación en Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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31
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Li Y, Hammoud A, Bouteiller L, Raynal M. Emergence of Homochiral Benzene-1,3,5-tricarboxamide Helical Assemblies and Catalysts upon Addition of an Achiral Monomer. J Am Chem Soc 2020; 142:5676-5688. [PMID: 32115947 DOI: 10.1021/jacs.9b13157] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Chirality amplification refers to the ability of a small chiral bias to fully control the main chain helicity of polymers and assemblies. Further implementation of functional chirally amplified helices as switchable asymmetric catalysts, chiral sensors, and circularly polarized light emitters will require a greater control of the energetics governing these chirality amplification effects. In this work, we report on the counterintuitive ability of an achiral molecule to suppress conformational defects in supramolecular helices, thus leading to the emergence of homochirality in a system containing a very small chiral bias. We focus our investigation on supramolecular helices composed of an achiral benzene-1,3,5-tricarboxamide (BTA) ligand, coordinated to copper, and an enantiopure BTA comonomer. Amplification of chirality as probed by varying the amount (sergeants and soldiers effect) or the optical purity (diluted majority-rules effect) of the enantiopure comonomer are modest in this initial system. However, both effects are hugely enhanced upon addition of a second achiral BTA monomer, leading to a perfect control of the helicity either by means of a remarkably low amount of sergeants (0.5%) or a small bias from a racemic mixture of enantiopure comonomers (10% ee). Such an enhancement in the amplification of chirality is only achieved by mixing the three components, i.e. the two achiral and the enantiopure comonomers, highlighting a synergistic effect upon coassembly of the three monomers. Investigation of the role of the achiral additive by multifarious analytical techniques supports its ability to stabilize the helical coassemblies and suppress helix reversals: i.e., conformational defects. Implementation of these helical copper precatalysts in the hydrosilylation of 1-(4-nitrophenyl)ethanone confirms that the effect of the achiral BTA additive is also operative under the conditions of the catalytic experiment. A highly enantioenriched product (90% ee) is produced by a supramolecular catalyst operating with ppm levels of chiral species.
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Affiliation(s)
- Yan Li
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
| | - Ahmad Hammoud
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
| | - Laurent Bouteiller
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
| | - Matthieu Raynal
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 Place Jussieu, 75005 Paris, France
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32
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Li P, Feng J, Pan K, Deng J. Preparation and Chirality Investigation of Electrospun Nanofibers from Optically Active Helical Substituted Polyacetylenes. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02118] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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33
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Li P, Pan K, Deng J. Nonspherical chiral helical polymer particles with programmable morphology prepared by electrospraying. NANOSCALE 2019; 11:23197-23205. [PMID: 31782462 DOI: 10.1039/c9nr07816a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Chirality and chiral materials demonstrate ever-growing importance. As a new type of chiral material, chiral polymer particles hold huge potential in both scientific research and practical applications. Meanwhile, nonspherical polymer particles (NPPs) have witnessed substantial progress in recent years because of their unique structures and especially the properties distinguishable from the corresponding spherical particles. We hypothesize that combining chirality with NPPs will open up an unprecedented category of advanced materials. The present contribution reports the first protocol for preparing electrosprayed nonspherical chiral particles constructed from chiral helical polymers, using helical substituted polyacetylenes as the model. SEM images demonstrate the successful fabrication of nonspherical chiral particles with tunable morphologies (bowl-, golf- and apple-like particles). Circular dichroism (CD) measurement proves the remarkable optical activity of the particles, which is observed in the predominantly one-handed helical polymer chains. The present work establishes a novel, versatile, and powerful platform for preparing nonspherical chiral polymer particles with controllable morphology.
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Affiliation(s)
- Pengpeng Li
- State Key Laboratory of Chemical Resource Engineering, China and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Kai Pan
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, China and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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34
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Zheng L, Zhan Y, Ye L, Zheng D, Wang Y, Zhang K, Jiang H. Chiral Induction and Remote Chiral Communication in Quinoline Oligoamide Foldamers for Determination of Enantiomeric Excess and Absolute Configuration of Chiral Amines and Their Derivatives. Chemistry 2019; 25:14162-14168. [PMID: 31389064 DOI: 10.1002/chem.201903032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/03/2019] [Indexed: 12/13/2022]
Abstract
Two pentameric foldamers, Q5 and Q5C-S, containing a C-F bond were synthesized based on quinoline oligamide foldamers for the measurement of enantiomeric excess and for the determination of absolute configuration of chiral amines, diamines, amino alcohols, and α-amino acid esters. Chiral induction of Q5 was triggered in situ when the chiral analytes reacted with the C-F bond in Q5 by a N-nucleophilic substitution reaction, leading to a linear correlation between the CD amplitude at the region of quinoline chromophores and the ee values of the chiral analytes, which can be used for the ee determination of chiral analytes. Furthermore, the CD intensity of Q5C-S containing a chiral motif at its C-terminus enhances via remote, favorable chiral communication when the chiral induction was triggered in situ by chiral analytes at the N-terminus matches the original helicity of Q5C-S, but decreases via remote, conflicted chiral communication when the chiral induction is triggered in situ by chiral molecules at the N-terminus mismatches the original one. The system can thus be used for determination of the absolute configuration of chiral analytes, given that the chirality of the chiral motif at the C-terminus of Q5C-S is known.
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Affiliation(s)
- Lu Zheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China.,International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, P. R. China.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Yulin Zhan
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Lin Ye
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Dan Zheng
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Ying Wang
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Kun Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China.,International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, P. R. China
| | - Hua Jiang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, 529020, P. R. China.,International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, P. R. China.,College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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35
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Gao P, Wang G, Xi L, Wang M, Li S, Shi Z. Transition‐Metal‐Free Defluorosilylation of Fluoroalkenes with Silylboronates. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900310] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pan Gao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210093 China
| | - Guoqiang Wang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210093 China
| | - Longlong Xi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210093 China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210093 China
| | - Shuhua Li
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210093 China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University Nanjing Jiangsu 210093 China
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36
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Scholtes JF, Trapp O. Enantioselectivity Induced by Stereoselective Interlocking: A Novel Core Motif for Tropos Ligands. Chemistry 2019; 25:11707-11714. [PMID: 31336015 PMCID: PMC7522685 DOI: 10.1002/chem.201902017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Indexed: 11/09/2022]
Abstract
Well-defined supramolecular interactions are a powerful tool to control the stereochemistry of a catalytic reaction. In this paper, we report a novel core motif for fluxional 2,2'-biphenyl ligands carrying (S)-amino acid-derived interaction sites in 5,5'-position that cause spontaneous enrichment of the Rax rotamer. The process is based on strong non-covalent interlocking between interaction sites, which causes diastereoselective formation of a supramolecular ligand dimer, in which the axial chirality of the two subunits is dictated by the stereochemical information in the amino acid residues. The detailed structure of the dimer was elucidated by NMR spectroscopy and single-crystal X-ray analysis. Three different phosphorus-based ligand types, namely a bisphosphine, a bisphosphinite and a phosphoramidite were synthesized and characterized. Whereas the first one was found to exist in a strongly weighted equilibrium, the two others each exhibited stereoconvergent behavior transforming into the diastereopure Rax rotamer. Enriched ligands were used in rhodium-mediated asymmetric hydrogenation reactions of prochiral olefins in which very high enantioselectivities of up to 96:4 were achieved.
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Affiliation(s)
- Jan Felix Scholtes
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany.,Max-Planck-Institute for Astronomy, Königstuhl 17, 69117, Heidelberg, Germany
| | - Oliver Trapp
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany.,Max-Planck-Institute for Astronomy, Königstuhl 17, 69117, Heidelberg, Germany
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37
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Catalysts Supported by Homochiral Molecular Helices: A New Concept to Implement Asymmetric Amplification in Catalytic Science. ChemCatChem 2019. [DOI: 10.1002/cctc.201901246] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Nishikawa T, Ouchi M. An Alkenyl Boronate as a Monomer for Radical Polymerizations: Boron as a Guide for Chain Growth and as a Replaceable Side Chain for Post‐Polymerization Transformation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tsuyoshi Nishikawa
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University, Nishikyo-ku Kyoto 615-8510 Japan
| | - Makoto Ouchi
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University, Nishikyo-ku Kyoto 615-8510 Japan
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39
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Nishikawa T, Ouchi M. An Alkenyl Boronate as a Monomer for Radical Polymerizations: Boron as a Guide for Chain Growth and as a Replaceable Side Chain for Post‐Polymerization Transformation. Angew Chem Int Ed Engl 2019; 58:12435-12439. [DOI: 10.1002/anie.201905135] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 06/07/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Tsuyoshi Nishikawa
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University, Nishikyo-ku Kyoto 615-8510 Japan
| | - Makoto Ouchi
- Department of Polymer ChemistryGraduate School of EngineeringKyoto University, Nishikyo-ku Kyoto 615-8510 Japan
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40
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Possible Roles of Amphiphilic Molecules in the Origin of Biological Homochirality. Symmetry (Basel) 2019. [DOI: 10.3390/sym11080966] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A review. The question of homochirality is an intriguing problem in the field of chemistry, and is deeply related to the origin of life. Though amphiphiles and their supramolecular assembly have attracted less attention compared to biomacromolecules such as RNA and proteins, the lipid world hypothesis sheds new light on the origin of life. This review describes how amphiphilic molecules are possibly involved in the scenario of homochirality. Some prebiotic conditions relevant to amphiphilic molecules will also be described. It could be said that the chiral properties of amphiphilic molecules have various interesting features such as compositional information, spontaneous formation, the ability to exchange components, fission and fusion, adsorption, and permeation. This review aims to clarify the roles of amphiphiles regarding homochirality, and to determine what kinds of physical properties of amphiphilic molecules could have played a role in the scenario of homochirality.
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41
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Worch JC, Prydderch H, Jimaja S, Bexis P, Becker ML, Dove AP. Stereochemical enhancement of polymer properties. Nat Rev Chem 2019. [DOI: 10.1038/s41570-019-0117-z] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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42
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Vanderkooy A, Gupta AK, Földes T, Lindblad S, Orthaber A, Pápai I, Erdélyi M. Halogen Bonding Helicates Encompassing Iodonium Cations. Angew Chem Int Ed Engl 2019; 58:9012-9016. [PMID: 31074942 PMCID: PMC6773207 DOI: 10.1002/anie.201904817] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/06/2019] [Indexed: 12/16/2022]
Abstract
The first halonium-ion-based helices were designed and synthesized using oligo-aryl/pyridylene-ethynylene backbones that fold around reactive iodonium ions. Halogen bonding interactions stabilize the iodonium ions within the helices. Remarkably, the distance between two iodonium ions within a helix is shorter than the sum of their van der Waals radii. The helical conformations were characterized by X-ray crystallography in the solid state, by NMR spectroscopy in solution and corroborated by DFT calculations. The helical complexes possess potential synthetic utility, as demonstrated by their ability to induce iodocyclization of 4-penten-1-ol.
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Affiliation(s)
- Alan Vanderkooy
- Department of Chemistry-BMC, Uppsala Universitet, Husargatan 3, 752 37, Uppsala, Sweden
| | - Arvind Kumar Gupta
- Department of Chemistry-Ångström Laboratory, Uppsala Universitet, Lägerhyddsvägen 1, 751 20, Uppsala, Sweden
| | - Tamás Földes
- Institute of Organic Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, 1117, Budapest, Hungary.,Present address: Department of Chemistry, King's College London, London, SE1 1DB, UK
| | - Sofia Lindblad
- Department of Chemistry-BMC, Uppsala Universitet, Husargatan 3, 752 37, Uppsala, Sweden
| | - Andreas Orthaber
- Department of Chemistry-Ångström Laboratory, Uppsala Universitet, Lägerhyddsvägen 1, 751 20, Uppsala, Sweden
| | - Imre Pápai
- Institute of Organic Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, 1117, Budapest, Hungary
| | - Máté Erdélyi
- Department of Chemistry-BMC, Uppsala Universitet, Husargatan 3, 752 37, Uppsala, Sweden
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43
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Vanderkooy A, Gupta AK, Földes T, Lindblad S, Orthaber A, Pápai I, Erdélyi M. Halogen Bonding Helicates Encompassing Iodonium Cations. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904817] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Alan Vanderkooy
- Department of Chemistry—BMCUppsala Universitet Husargatan 3 752 37 Uppsala Sweden
| | - Arvind Kumar Gupta
- Department of Chemistry—Ångström LaboratoryUppsala Universitet Lägerhyddsvägen 1 751 20 Uppsala Sweden
| | - Tamás Földes
- Institute of Organic ChemistryResearch Center for Natural SciencesHungarian Academy of Sciences Magyar tudósok körútja 2 1117 Budapest Hungary
- Present address: Department of ChemistryKing's College London London SE1 1DB UK
| | - Sofia Lindblad
- Department of Chemistry—BMCUppsala Universitet Husargatan 3 752 37 Uppsala Sweden
| | - Andreas Orthaber
- Department of Chemistry—Ångström LaboratoryUppsala Universitet Lägerhyddsvägen 1 751 20 Uppsala Sweden
| | - Imre Pápai
- Institute of Organic ChemistryResearch Center for Natural SciencesHungarian Academy of Sciences Magyar tudósok körútja 2 1117 Budapest Hungary
| | - Máté Erdélyi
- Department of Chemistry—BMCUppsala Universitet Husargatan 3 752 37 Uppsala Sweden
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44
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Li P, Ma Z, Mei S, Pan K, Deng J. A One-Pot Polymerization for Concurrently Inducing Predominant Helicity in Optically Inactive Helical Polymer and Constructing Graphene-Based Chiral Hybrid Foams. Macromol Rapid Commun 2019; 40:e1900146. [PMID: 31058388 DOI: 10.1002/marc.201900146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/21/2019] [Indexed: 12/14/2022]
Abstract
Synthetic chiral helical polymers have achieved impressive progress in past few decades. Unfortunately, how to construct chiral helical polymer-derived functional materials still remains highly challenging. The present contribution reports an unprecedented, one-step strategy for judiciously combining chiral helical polymer with graphene to construct chiral hybrid foams. Graphene oxide (GO), ascorbic acid (L-AA), Rh catalyst, and an achiral acetylenic monomer bearing phenylboronic acid group are mixed in an aqueous dispersion. Under mild conditions, the monomer underwent polymerization; meanwhile GO transforms into reduced graphene oxide (RGO) which in situ self-assembles to construct a 3D porous structure. Herein, L-AA simultaneously plays double roles: 1) working as a chiral source for the monomer to undergo helix-sense-selective polymerization or transferring its chirality to the polymer chains via forming borate structure; and 2) working as a reducing agent for reducing GO. The preparation strategy combines four processes into one single step: monomer polymerization, chirality transfer, reduction of GO, and RGO's self-assembly. The eventually obtained chiral hybrid foams demonstrate advantages of porous structure, chirality, and reversible borate functional groups. The established preparation strategy promises a potent platform for conveniently constructing advanced chiral polymeric materials and even chiral hybrids starting from achiral monomers.
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Affiliation(s)
- Pengpeng Li
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.,State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zongwen Ma
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.,State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Song Mei
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.,State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Kai Pan
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jianping Deng
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.,State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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45
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Zhu X, Jiang Y, Yang D, Zhang L, Li Y, Liu M. Homochiral nanotubes from heterochiral lipid mixtures: a shorter alkyl chain dominated chiral self-assembly. Chem Sci 2019; 10:3873-3880. [PMID: 31015929 PMCID: PMC6461104 DOI: 10.1039/c9sc00215d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/19/2019] [Indexed: 12/28/2022] Open
Abstract
It is an important topic to achieve homochirality both at a molecular and supramolecular level. While it has long been regarded that "majority rule" guides the homochiral self-assembly from an enantiomer mixture, it still remains a big challenge to manipulate the global homochirality in a complex system containing chiral species that are not enantiomers. Here, we demonstrate a new example wherein homochiral nanotubes self-assembled from a mixture of heterochiral lipids that deviated from the "majority rule". We have found that when two heterochiral lipids with mirror headgroups but a 2-methylene discrepancy in alkyl chain length are mixed, homochiral nanotubes are always formed regardless of their mixing ratio. Remarkably, the helicity of the nanotube is exclusively controlled by the molecular chirality of the lipids with shorter alkyl chains, i.e., the chiral self-assembly was dominated by the lipid with the shorter alkyl chain. MD simulation reveals that the match of both the alkyl chain length and hydrogen-bonding between two kinds of lipids plays an important role in the assembly. This work provides a new insight into the supramolecular chirality of complex systems containing multi chiral species.
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Affiliation(s)
- Xuefeng Zhu
- Beijing National Laboratory for Molecular Science (BNLMS) , CAS Key Laboratory of Colloid Interface, and Chemical Thermodynamics , Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
| | - Yuqian Jiang
- National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Dong Yang
- Beijing National Laboratory for Molecular Science (BNLMS) , CAS Key Laboratory of Colloid Interface, and Chemical Thermodynamics , Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
| | - Li Zhang
- Beijing National Laboratory for Molecular Science (BNLMS) , CAS Key Laboratory of Colloid Interface, and Chemical Thermodynamics , Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
| | - Yuangang Li
- Beijing National Laboratory for Molecular Science (BNLMS) , CAS Key Laboratory of Colloid Interface, and Chemical Thermodynamics , Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS) , CAS Key Laboratory of Colloid Interface, and Chemical Thermodynamics , Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , P. R. China .
- National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
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46
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Scholtes JF, Trapp O. Inducing Enantioselectivity in a Dynamic Catalyst by Supramolecular Interlocking. Angew Chem Int Ed Engl 2019; 58:6306-6310. [PMID: 30786123 DOI: 10.1002/anie.201901175] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/19/2019] [Indexed: 12/19/2022]
Abstract
The design of a new class of fluxional biphenyl bisphosphinite (BIBIPHOS) ligands decorated with amino acid-based diamide interaction sites is reported that undergo spontaneous desymmetrization. Hydrogenation of prochiral alkenes using Rh-BIBIPHOS results in enantiomeric ratios of up to 96:4 (R/S). This stereoconvergent behavior of the fluxional BIBIPHOS ligand is triggered by pronounced intermolecular interlocking of the recognition sites, leading to the formation of a supramolecular assembly, where the axial orientation of the biphenyl ligand backbone is governed by the chirality of the amino acid moieties. Stereoinduction during catalysis is decoupled from this process and occurs as an immediate consequence of the emergent behavior of the ligands. This supramolecular system is very robust and has the potential to be adopted for other ligand designs in enantioselective catalysis.
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Affiliation(s)
- Jan Felix Scholtes
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany.,Max-Planck-Institute for Astronomy, Königstuhl 17, 69117, Heidelberg, Germany
| | - Oliver Trapp
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstr. 5-13, 81377, Munich, Germany.,Max-Planck-Institute for Astronomy, Königstuhl 17, 69117, Heidelberg, Germany
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47
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Scholtes JF, Trapp O. Inducing Enantioselectivity in a Dynamic Catalyst by Supramolecular Interlocking. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901175] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jan Felix Scholtes
- Department of ChemistryLudwig-Maximilians-University Munich Butenandtstr. 5–13 81377 Munich Germany
- Max-Planck-Institute for Astronomy Königstuhl 17 69117 Heidelberg Germany
| | - Oliver Trapp
- Department of ChemistryLudwig-Maximilians-University Munich Butenandtstr. 5–13 81377 Munich Germany
- Max-Planck-Institute for Astronomy Königstuhl 17 69117 Heidelberg Germany
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48
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Zheng C, Yang L, Li H, Sun H, Bi X. Researches on the construction of supramolecular helical chains in crystallized β-alaninium sulfate/ perchlorate compounds. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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49
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Jiang H, Fan H, Jiang Y, Zhang L, Liu M. Chiral nanostructures self-assembled from nitrocinnamic amide amphiphiles: substituent and solvent effects. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1608-1617. [PMID: 31467823 PMCID: PMC6693415 DOI: 10.3762/bjnano.10.156] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/09/2019] [Indexed: 05/20/2023]
Abstract
Chiral nanostructures, such as α-helical proteins and double helix DNA, are widely found in biological systems and play a significant role in the biofunction of life. These structures are essentially fabricated through the covalent or noncovalent bonds between small chiral molecules. It is thus an important issue to understand how small chiral molecules can form chiral nanostructures. Here, using a series of isomeric nitrocinnamic amide derivatives, we have investigated the self-assembly behavior and the effect of the substituent position as well as the solvent on the formation of chiral nanostructures. It was found that totally different chiral nanostructures were formed due to the different positions of the nitro group on the cinnamic amide. Moreover, it was found that the chiral sense of the self-assembled nanostructures can be regulated by the solvent whereby helicity inversion was observed. This work provides a simple way to regulate the self-assembly pathway via molecular design and choice of solvent for the controlled creation of chiral nanostructures.
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Affiliation(s)
- Hejin Jiang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huahua Fan
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuqian Jiang
- Laboratory for Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Li Zhang
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Minghua Liu
- Beijing National Laboratory for Molecular Science (BNLMS), CAS Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Zhang P, Yamamoto T, Suginome M. Helical Poly(quinoxaline‐2,3‐diyl)s Bearing 1,2,3‐Triazole Pendants: Synthesis by CuAAC and Use as Reusable Abnormal NHC Ligands in Gold Catalysis. ChemCatChem 2018. [DOI: 10.1002/cctc.201801361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Pinglu Zhang
- Department of Synthetic Chemistry and Biological Chemistry Graduate School of EngineeringKyoto University Katsura 615-8510 Japan
| | - Takeshi Yamamoto
- Department of Synthetic Chemistry and Biological Chemistry Graduate School of EngineeringKyoto University Katsura 615-8510 Japan
| | - Michinori Suginome
- Department of Synthetic Chemistry and Biological Chemistry Graduate School of EngineeringKyoto University Katsura 615-8510 Japan
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