1
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Hirano J, Miyoshi S, Yashima E, Ikai T, Shinokubo H, Fukui N. Synthesis of sterically congested double helicene by alkyne cycloisomerization. Chem Commun (Camb) 2024; 60:6035-6038. [PMID: 38775051 DOI: 10.1039/d4cc01573h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Alkyne cycloisomerization of 2,7,10,15-tetra(ortho-alkynylphenyl)benzo[g,p]chrysene containing bulky 4-alkoxy-2,6-dimethylphenyl groups at the alkyne terminals selectively proceeded at the sterically crowded bay-region. The obtained double helicene adopts a distorted structure with a high racemization barrier due to the intramolecular steric repulsion.
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Affiliation(s)
- Junichiro Hirano
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
| | - Sayaka Miyoshi
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
| | - Eiji Yashima
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
| | - Tomoyuki Ikai
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
- Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Norihito Fukui
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan.
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
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2
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Liu W, Qin T, Xie W, Yang X. Catalytic Enantioselective Synthesis of Helicenes. Chemistry 2022; 28:e202202369. [PMID: 36063162 DOI: 10.1002/chem.202202369] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Indexed: 12/13/2022]
Abstract
Helicenes and helicene-like molecules, usually containing multiple ortho-fused aromatic rings, possess unique helical chirality. These compounds have found a wide range of important applications in many research fields, such as asymmetric catalysis, molecular recognition, sensors and responsive switches, circularly polarized luminescence materials and others. However, the catalytic enantioselective synthesis of helicenes was largely underexplored, when compared with the enantioselective synthesis of molecules bearing other stereogenic elements (e.g. central chirality and axial chirality). Since the pioneer work of asymmetric synthesis of helicenes via enantioselective [2+2+2] cycloaddition of triynes by Stará and Starý, last two decades have witnessed the tremendous development in the catalytic enantioselective synthesis of helicenes. In this review, we comprehensively summarized the advances in this field, which include methods enabled by both transition metal catalysis and organocatalysis, and provide our perspective on its future development.
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Affiliation(s)
- Wei Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Tianren Qin
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Wansen Xie
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Xiaoyu Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
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3
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Asymmetric Hydroarylation Reactions Catalyzed by Transition Metals: Last 10 Years in a Mini Review. Catalysts 2022. [DOI: 10.3390/catal12101289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hydroarylation reactions play a pivotal role in organic chemistry due to their versatility and efficiency. In the last 10 years, the scientific production around this reaction has been very high, but in its asymmetric version, the results are less. In this mini review, selected literature examples are considered to draw attention to directions of the asymmetric hydroarylation reaction mediated by transition metal catalysts. The selected works were grouped in two main sections. In the first, we reported examples relating the narrower definition of hydroarylation, namely the metal-catalyzed processes where inactivated aryl moiety undergoes a direct functionalization via insertion of an unsaturated compound. In the second part, hydroarylation reactions take place with the use of pre-activated aryl substrates, usually aryl-iodides or aryl-boronated.
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4
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Zhang J, Simon M, Golz C, Alcarazo M. Enantioselective Synthesis of [5]Helicenes Containing Two Additional Chiral Axes. Isr J Chem 2022. [DOI: 10.1002/ijch.202200043] [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)
- Jianwei Zhang
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr 2 37077 Göttingen Germany
| | - Martin Simon
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr 2 37077 Göttingen Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr 2 37077 Göttingen Germany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr 2 37077 Göttingen Germany
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5
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Mishra S, Urvashi, Patil NT. Chiral Ligands for Au(I), Au(III), and Au(I)/Au(III) Redox Catalysis. Isr J Chem 2022. [DOI: 10.1002/ijch.202200039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sampoorna Mishra
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Urvashi
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Nitin T. Patil
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
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6
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Solas M, Suárez‐Pantiga S, Sanz R. Asymmetric Gold(I)-Catalyzed Tandem Hydroarylation-Nazarov Cyclization: Enantioselective Access to Cyclopentenones. Angew Chem Int Ed Engl 2022; 61:e202207406. [PMID: 35785510 PMCID: PMC9544548 DOI: 10.1002/anie.202207406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Indexed: 11/13/2022]
Abstract
The asymmetric synthesis of cyclopentachromenones from gold-catalyzed reaction of readily available skipped alkenynones is described. This cascade reaction involves an initial anti-Michael hydroarylation of the ynone moiety to form a gold-functionalized dialkenylketone intermediate, followed by a Nazarov cyclization that proceeds in an unprecedented enantioselective manner. Excellent enantiomeric ratios and chemical yields are obtained under mild reaction conditions.
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Affiliation(s)
- Marta Solas
- Área de Química Orgánica. Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos09001BurgosSpain
| | - Samuel Suárez‐Pantiga
- Área de Química Orgánica. Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos09001BurgosSpain
| | - Roberto Sanz
- Área de Química Orgánica. Departamento de QuímicaFacultad de CienciasUniversidad de BurgosPza. Misael Bañuelos09001BurgosSpain
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7
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Solas M, Suárez-Pantiga S, Sanz R. Asymmetric Gold(I)‐Catalyzed Tandem Hydroarylation‐Nazarov Cyclization: Enantioselective Access to Cyclopentenones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Marta Solas
- Universidad de Burgos Química Facultad de CienciasPza. Misael Bañuelos, s/n 09001 Burgos SPAIN
| | - Samuel Suárez-Pantiga
- Universidad de Burgos Química Facultad de CienciasPza. Misael Bañuelos, s/n 09001 Burgos SPAIN
| | - Roberto Sanz
- Universidad de Burgos Área de Química Orgánica Departamento de Química Facultad de Ciencias Pza. Misael Bañuelos s/n 09001 Burgos SPAIN
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8
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Gulevskaya AV, Tonkoglazova DI. Alkyne‐based syntheses of carbo‐ and heterohelicenes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Das A, Patil NT. Enantioselective C-H Functionalization Reactions under Gold Catalysis. Chemistry 2022; 28:e202104371. [PMID: 35014732 DOI: 10.1002/chem.202104371] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Indexed: 01/18/2023]
Abstract
Transition metal-catalyzed enantioselective functionalization of ubiquitous C-H bonds has proven to be promising field as it offers the construction of chiral molecular complexity in a step- and atom-economical manner. In recent years, gold has emerged as an attractive contender for catalyzing such reactions. The unique reactivities and selectivities offered by gold catalysts have been exploited to access numerous asymmetric transformations based on gold-catalyzed C-H functionalization processes. Herein, this review critically highlights the major advances and discoveries made in the enantioselective C-H functionalization under gold catalysis which is accompanied by mechanistic insights at appropriate places.
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Affiliation(s)
- Avishek Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462 066, India
| | - Nitin T Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462 066, India
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10
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Teichmann B, Krause A, Lin M, Würthner F. Enantioselective Recognition of Helicenes by a Tailored Chiral Benzo[ghi]perylene Trisimide π-Scaffold. Angew Chem Int Ed Engl 2022; 61:e202117625. [PMID: 35103371 PMCID: PMC9303377 DOI: 10.1002/anie.202117625] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Indexed: 12/16/2022]
Abstract
Enantioselective molecular recognition of chiral molecules that lack specific interaction sites for hydrogen bonding or Lewis acid-base interactions remains challenging. Here we introduce the concept of tailored chiral π-surfaces toward the maximization of shape complementarity. As we demonstrate for helicenes it is indeed possible by pure van-der-Waals interactions (π-π interactions and CH-π interactions) to accomplish enantioselective binding. This is shown for a novel benzo[ghi]perylene trisimide (BPTI) receptor whose π-scaffold is contorted into a chiral plane by functionalization with 1,1'-bi-2-naphthol (BINOL). Complexation experiments of enantiopure (P)-BPTI with (P)- and (M)-[6]helicene afforded binding constants of 10 700 M-1 and 550 M-1 , respectively, thereby demonstrating the pronounced enantiodifferentiation by the homochiral π-scaffold of the BPTI host. The enantioselective recognition is even observable by the naked eye due to a specific exciplex-type emission originating from the interacting homochiral π-scaffolds of electron-rich [6]helicene and electron-poor BPTI.
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Affiliation(s)
- Ben Teichmann
- Institut für Organische Chemie and Center for Nanosystems ChemistryUniversität WürzburgAm Hubland97074WürzburgGermany
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University350116China
| | - Ana‐Maria Krause
- Institut für Organische Chemie and Center for Nanosystems ChemistryUniversität WürzburgAm Hubland97074WürzburgGermany
| | - Mei‐Jin Lin
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou University350116China
| | - Frank Würthner
- Institut für Organische Chemie and Center for Nanosystems ChemistryUniversität WürzburgAm Hubland97074WürzburgGermany
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11
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Teichmann B, Krause A, Lin M, Würthner F. Enantioselective Recognition of Helicenes by a Tailored Chiral Benzo[ghi]perylene Trisimide π‐Scaffold. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ben Teichmann
- Institut für Organische Chemie and Center for Nanosystems Chemistry Universität Würzburg Am Hubland 97074 Würzburg Germany
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University 350116 China
| | - Ana‐Maria Krause
- Institut für Organische Chemie and Center for Nanosystems Chemistry Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Mei‐Jin Lin
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University 350116 China
| | - Frank Würthner
- Institut für Organische Chemie and Center for Nanosystems Chemistry Universität Würzburg Am Hubland 97074 Würzburg Germany
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12
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Pelliccioli V, Hartung T, Simon M, Golz C, Licandro E, Cauteruccio S, Alcarazo M. Enantioselective Synthesis of Dithia[5]helicenes and their Postsynthetic Functionalization to Access Dithia[9]helicenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Valentina Pelliccioli
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37073 Göttingen Germany
- Department of Chemistry University of Milan Via Golgi 19 20133 Milan Italy
| | - Thierry Hartung
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37073 Göttingen Germany
| | - Martin Simon
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37073 Göttingen Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37073 Göttingen Germany
| | - Emanuela Licandro
- Department of Chemistry University of Milan Via Golgi 19 20133 Milan Italy
| | - Silvia Cauteruccio
- Department of Chemistry University of Milan Via Golgi 19 20133 Milan Italy
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37073 Göttingen Germany
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13
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Li R, Ma B, He RY, Zhang B, Zhang YK, Feng SY, An P. Azepine- or Oxepine-embedded Double Saddle-Helix Nanographenes. Chem Asian J 2021; 17:e202101365. [PMID: 34904381 DOI: 10.1002/asia.202101365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Indexed: 11/09/2022]
Abstract
The azepine- and oxepine-embedded polycyclic aromatic hydrocarbons (PAH) 1-3, as the hexa-peri-hexabenzocoronene (HBC)-based nanographenes (NG) were designed and synthesized by Diels-Alder reaction of cyclic alkene with tetrachlorothiophene-S,S-dioxide, followed by Suzuki-Miyaura cross-coupling and Scholl-type cyclodehydrogenation. Due to the strained seven-membered ring and the inherent structural pattern, heteroatom-doped NGs 1-3 show Cs symmetrical, double saddle-helix hybrid conformation, which represents a new shape for HBC based nanographenes. The calculation studies reveal the low aromaticity of the 8π heterocycles themselves and the heterocycles also decrease the electron delocalization of benzenes surrounding them. Dynamics-based calculation suggests the Cs symmetry would maintain druing the saddle-inversion process. Meanwhile, we show property perturbation by doping with different heteroatoms.
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Affiliation(s)
- Ranran Li
- School of Chemical Science and Technology, Ynunan University, Kunming, 650500, P. R. China
| | - Bin Ma
- School of Chemical Science and Technology, Ynunan University, Kunming, 650500, P. R. China
| | - Run-Ying He
- School of Chemical Science and Technology, Ynunan University, Kunming, 650500, P. R. China
| | - Bin Zhang
- School of Chemical Science and Technology, Ynunan University, Kunming, 650500, P. R. China
| | - Yi-Kang Zhang
- School of Chemical Science and Technology, Ynunan University, Kunming, 650500, P. R. China
| | - Shi-Yu Feng
- School of Chemical Science and Technology, Ynunan University, Kunming, 650500, P. R. China
| | - Peng An
- School of Chemical Science and Technology, Ynunan University, Kunming, 650500, P. R. China
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14
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Pelliccioli V, Hartung T, Simon M, Golz C, Licandro E, Cauteruccio S, Alcarazo M. Enantioselective Synthesis of Dithia[5]helicenes and their Postsynthetic Functionalization to Access Dithia[9]helicenes. Angew Chem Int Ed Engl 2021; 61:e202114577. [PMID: 34874602 PMCID: PMC9302117 DOI: 10.1002/anie.202114577] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Indexed: 01/11/2023]
Abstract
A highly enantioselective synthesis of 5,13-disubstituted dibenzo[d,d']benzo[1,2-b:4,3-b']dithiophenes is reported. Key for the successful assembly of these helical architectures is the last two successive Au-catalyzed intramolecular alkyne hydroarylation events. Specifically, the second cyclization is the enantiodetermining step of the whole process and provides the desired helicenes with excellent ee values when a TADDOL-derived 1,2,3-(triazolium)phosphonite moiety (TADDOL: α,α,α',α'-tetraaryl-1,3-dioxolane-4,5-dimethanol) is employed as an ancillary ligand. The absolute stereochemistry of the newly prepared structures has been determined by X-ray crystallography to be P; the optical properties of these heterohelicenes are also reported. A three-step procedure was subsequently developed that allows the transformation of the initially obtained dithia[5]helicenes into dithia[9]helicenes without erosion of the enantiopurity.
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Affiliation(s)
- Valentina Pelliccioli
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37073, Göttingen, Germany.,Department of Chemistry, University of Milan, Via Golgi 19, 20133, Milan, Italy
| | - Thierry Hartung
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37073, Göttingen, Germany
| | - Martin Simon
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37073, Göttingen, Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37073, Göttingen, Germany
| | - Emanuela Licandro
- Department of Chemistry, University of Milan, Via Golgi 19, 20133, Milan, Italy
| | - Silvia Cauteruccio
- Department of Chemistry, University of Milan, Via Golgi 19, 20133, Milan, Italy
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37073, Göttingen, Germany
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15
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Zuccarello G, Escofet I, Caniparoli U, Echavarren AM. New-Generation Ligand Design for the Gold-Catalyzed Asymmetric Activation of Alkynes. Chempluschem 2021; 86:1283-1296. [PMID: 34472729 PMCID: PMC8457203 DOI: 10.1002/cplu.202100232] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/09/2021] [Indexed: 01/01/2023]
Abstract
Gold(I) catalysts are ideal for the activation of alkynes under very mild conditions. However, unlike allenes or alkenes, the triple bond of alkynes cannot be prochiral. In addition, the linear coordination displayed by gold(I) complexes places the chiral ligand far away from the substrate resulting in an inefficient transfer of chiral information. This poses a significant challenge for the achievement of high enantiocontrol in gold(I)-catalyzed reactions of alkynes. Although considerable progress on enantioselective gold(I)-catalyzed transformations has recently been achieved, the asymmetric activation of non-prochiral alkyne-containing small molecules still represents a great challenge. Herein we summarize recent advances in intra- and intermolecular enantioselective gold(I)-catalyzed reactions involving alkynes, discussing new chiral ligand designs that lie at the basis of these developments. We also focus on the mode of action of these catalysts, their possible limitations towards a next-generation of more efficient ligand designs. Finally, square planar chiral gold(III) complexes, which offer an alternative to chiral gold(I) complexes, are also discussed.
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Affiliation(s)
- Giuseppe Zuccarello
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Ulysse Caniparoli
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
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16
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Weh M, Rühe J, Herbert B, Krause AM, Würthner F. Deracemization of Carbohelicenes by a Chiral Perylene Bisimide Cyclophane Template Catalyst. Angew Chem Int Ed Engl 2021; 60:15323-15327. [PMID: 33909943 PMCID: PMC8362091 DOI: 10.1002/anie.202104591] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Indexed: 12/16/2022]
Abstract
Deracemization describes the conversion of a racemic mixture of a chiral molecule into an enantioenriched mixture or an enantiopure compound without structural modifications. Herein, we report an inherently chiral perylene bisimide (PBI) cyclophane whose chiral pocket is capable of transforming a racemic mixture of [5]-helicene into an enantioenriched mixture with an enantiomeric excess of 66 %. UV/Vis and fluorescence titration studies reveal this cyclophane host composed of two helically twisted PBI dyes has high binding affinities for the respective homochiral carbohelicene guests, with outstanding binding constants of up to 3.9×1010 m-1 for [4]-helicene. 2D NMR studies and single-crystal X-ray analysis demonstrate that the observed strong and enantioselective binding of homochiral carbohelicenes and the successful template-catalyzed deracemization of [5]-helicene can be explained by the enzyme-like perfect shape complementarity of the macrocyclic supramolecular host.
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Affiliation(s)
- Manuel Weh
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Jessica Rühe
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Benedikt Herbert
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ana-Maria Krause
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
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17
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Hanada K, Nogami J, Miyamoto K, Hayase N, Nagashima Y, Tanaka Y, Muranaka A, Uchiyama M, Tanaka K. Rhodium-Catalyzed Enantioselective Synthesis, Structures, and Properties of Single and Double Azahelicene-Like Molecules. Chemistry 2021; 27:9313-9319. [PMID: 33904626 DOI: 10.1002/chem.202005479] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Indexed: 11/11/2022]
Abstract
The enantioselective synthesis of aza[6] and [7]helicene-like molecules have been achieved by the cationic rhodium(I)/axially chiral biaryl bisphosphine complex-catalyzed intramolecular [2+2+2] cycloaddition of cyanodiynes. This protocol was successfully applied to the diastereo- and enantioselective synthesis of an S-shaped double aza[6]helicene-like molecule with a high ee value of 89 %. Although no epimerization and racemization were observed in the double carbo[6]helicene-like molecule at 80 °C, epimerization and racemization of the double aza[6]helicene-like molecule proceeded at 80 °C. This double aza[6]helicene-like molecule showed good fluorescent quantum yields and chiroptical responses under both neutral and acidic conditions.
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Affiliation(s)
- Kyoichi Hanada
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Juntaro Nogami
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Norihiko Hayase
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yuki Nagashima
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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18
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Weh M, Rühe J, Herbert B, Krause A, Würthner F. Deracemization of Carbohelicenes by a Chiral Perylene Bisimide Cyclophane Template Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104591] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Manuel Weh
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Jessica Rühe
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Benedikt Herbert
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Ana‐Maria Krause
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
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19
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Martín‐Torres I, Ogalla G, Yang J, Rinaldi A, Echavarren AM. Enantioselective Alkoxycyclization of 1,6-Enynes with Gold(I)-Cavitands: Total Synthesis of Mafaicheenamine C. Angew Chem Int Ed Engl 2021; 60:9339-9344. [PMID: 33576560 PMCID: PMC8251978 DOI: 10.1002/anie.202017035] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Indexed: 12/16/2022]
Abstract
Chiral gold(I)-cavitand complexes have been developed for the enantioselective alkoxycyclization of 1,6-enynes. This enantioselective cyclization has been applied for the first total synthesis of carbazole alkaloid (+)-mafaicheenamine C and its enantiomer, establishing its configuration as R. The cavity effect was also evaluated in the cycloisomerization of dienynes. A combination of experiments and theoretical studies demonstrates that the cavity of the gold(I) complexes forces the enynes to adopt constrained conformations, which results in the high observed regio- and stereoselectivities.
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Affiliation(s)
- Inmaculada Martín‐Torres
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Gala Ogalla
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Jin‐Ming Yang
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
| | - Antonia Rinaldi
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
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20
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Martín‐Torres I, Ogalla G, Yang J, Rinaldi A, Echavarren AM. Enantioselective Alkoxycyclization of 1,6‐Enynes with Gold(I)‐Cavitands: Total Synthesis of Mafaicheenamine C. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Inmaculada Martín‐Torres
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Gala Ogalla
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Jin‐Ming Yang
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonia Rinaldi
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
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21
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Ravat P. Carbo[n]helicenes Restricted to Enantiomerize: An Insight into the Design Process of Configurationally Stable Functional Chiral PAHs. Chemistry 2020; 27:3957-3967. [PMID: 33034405 PMCID: PMC7986117 DOI: 10.1002/chem.202004488] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Indexed: 12/27/2022]
Abstract
The most important stereodynamic feature of carbo[n]helicenes is the interconversion of their enantiomers. The Gibbs activation energy (ΔG≠(T)) of this process, which determines the rate of enantiomerization, dictates the configurational stability of [n]helicenes. High values of ΔG≠(T) are required for applications of functional chiral molecules incorporating [n]helicenes or helicene substructures. This minireview provides an overview of the mechanism, recent developments, and factors affecting the enantiomerization of [n]helicenes, which will accelerate the design process of configurationally stable functional chiral molecules based on helicene substructures. Additionally, this minireview addresses the misconception and irregularities in the recent literature on how the terms “racemization” and “enantiomerization” are used as well as how the activation parameters are calculated for [n]helicenes and related compounds.
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Affiliation(s)
- Prince Ravat
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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22
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Redero P, Hartung T, Zhang J, Nicholls LDM, Zichen G, Simon M, Golz C, Alcarazo M. Enantioselective Synthesis of 1-Aryl Benzo[5]helicenes Using BINOL-Derived Cationic Phosphonites as Ancillary Ligands. Angew Chem Int Ed Engl 2020; 59:23527-23531. [PMID: 32896999 PMCID: PMC7756570 DOI: 10.1002/anie.202010021] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/05/2020] [Indexed: 11/21/2022]
Abstract
The synthesis of unprecedented BINOL-derived cationic phosphonites is described. Through the use of these phosphanes as ancillary ligands in AuI catalysis, a highly regio- and enantioselective assembly of appropriately designed alkynes into 1-(aryl)benzo[5]carbohelicenes is achieved. The modular synthesis of these ligands and the enhanced reactivity that they impart to AuI -centers after coordination have been found to be the key features that allow an optimization of the reaction conditions until the desired benzo[5]helicenes are obtained with high yield and enantioselectivity.
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Affiliation(s)
- Pablo Redero
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Thierry Hartung
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Jianwei Zhang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Leo D. M. Nicholls
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Guo Zichen
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Martin Simon
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Christopher Golz
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
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23
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Pelliccioli V, Dova D, Baldoli C, Graiff C, Licandro E, Cauteruccio S. Diversified Syntheses of Tetrathia[7]helicenes by Metal‐Catalyzed Cross‐Coupling Reactions. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001382] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Valentina Pelliccioli
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Davide Dova
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Clara Baldoli
- CNR-Istituto di Scienze e Tecnologie Chimiche (SCITEC) “Giulio Natta” Via Golgi 19 20133 Milano Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale Università di Parma Parco Area delle Scienze 17/a 43124 Parma Italy
| | - Emanuela Licandro
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Silvia Cauteruccio
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
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24
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Johannsen T, Golz C, Alcarazo M. α‐Kationische Phosphole: Synthese und Anwendungen als Liganden. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Tim Johannsen
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammanstr. 2 Göttingen Deutschland
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammanstr. 2 Göttingen Deutschland
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammanstr. 2 Göttingen Deutschland
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25
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Redero P, Hartung T, Zhang J, Nicholls LDM, Zichen G, Simon M, Golz C, Alcarazo M. Enantioselective Synthesis of 1‐Aryl Benzo[5]helicenes Using BINOL‐Derived Cationic Phosphonites as Ancillary Ligands. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Pablo Redero
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Thierry Hartung
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Jianwei Zhang
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Leo D. M. Nicholls
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Guo Zichen
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Martin Simon
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
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26
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Johannsen T, Golz C, Alcarazo M. α-Cationic Phospholes: Synthesis and Applications as Ancillary Ligands. Angew Chem Int Ed Engl 2020; 59:22779-22784. [PMID: 32853445 PMCID: PMC7756421 DOI: 10.1002/anie.202009303] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/23/2020] [Indexed: 01/14/2023]
Abstract
A series of structurally differentiated α‐cationic phospholes containing cyclopropenium, imidazolium, and iminium substituents has been synthesized by reaction of chlorophosphole 1 with the corresponding stable carbenes. Evaluation of the donor properties of these compounds reveals that their strong π‐acceptor character is heavily influenced by the nature of the cationic group. The coordination chemistry of these newly prepared ligands towards AuI centers is also described and their unique electronic properties exploited in catalysis. Interestingly, α‐cationic phosphole containing catalysts were not only able to accelerate model cycloisomerization reactions, but also to efficiently discriminate between concurrent reaction pathways, avoiding the formation of undesired product mixtures.
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Affiliation(s)
- Tim Johannsen
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstr. 2, Göttingen, Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstr. 2, Göttingen, Germany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstr. 2, Göttingen, Germany
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27
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Sprenger K, Golz C, Alcarazo M. Synthesis of Cycloheptatrienes, Oxepines, Thiepines, and Silepines: A Comparison between Brønsted Acid and Au‐Catalysis. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001072] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kristin Sprenger
- Institut für Organische und Biomolekulare Chemie Georg‐August‐Universität Göttingen Tammannstr 2 37077 Göttingen Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie Georg‐August‐Universität Göttingen Tammannstr 2 37077 Göttingen Germany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie Georg‐August‐Universität Göttingen Tammannstr 2 37077 Göttingen Germany
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28
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Liu P, Bao X, Naubron JV, Chentouf S, Humbel S, Vanthuyne N, Jean M, Giordano L, Rodriguez J, Bonne D. Simultaneous Control of Central and Helical Chiralities: Expedient Helicoselective Synthesis of Dioxa[6]helicenes. J Am Chem Soc 2020; 142:16199-16204. [PMID: 32897709 DOI: 10.1021/jacs.0c07995] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An expedient synthesis of a new family of configurationally stable dioxa[6]helicenes was established using a sequential helicoselective organocatalyzed heteroannulation/eliminative aromatization via enantioenriched fused 2-nitro dihydrofurans featuring both central and helical chiralities. Starting from simple achiral precursors, a broad range of these previously unknown chiral heterocyclic scaffolds were obtained with good efficiency, and their aromatization proceeded with very high enantiopurity retention in most cases.
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Affiliation(s)
- Peng Liu
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Xiaoze Bao
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jean-Valère Naubron
- Aix Marseille Université, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille, France
| | - Sara Chentouf
- Aix Marseille Université, CNRS, Centrale Marseille, FSCM, Spectropole, Marseille, France
| | - Stéphane Humbel
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Marion Jean
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Laurent Giordano
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Jean Rodriguez
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Damien Bonne
- Aix Marseille Université, CNRS, Centrale Marseille, iSm2, Marseille, France
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29
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Dhawa U, Tian C, Wdowik T, Oliveira JCA, Hao J, Ackermann L. Enantioselective Pallada-Electrocatalyzed C-H Activation by Transient Directing Groups: Expedient Access to Helicenes. Angew Chem Int Ed Engl 2020; 59:13451-13457. [PMID: 32243685 PMCID: PMC7497116 DOI: 10.1002/anie.202003826] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Indexed: 01/05/2023]
Abstract
Asymmetric pallada-electrocatalyzed C-H olefinations were achieved through the synergistic cooperation with transient directing groups. The electrochemical, atroposelective C-H activations were realized with high position-, diastereo-, and enantio-control under mild reaction conditions to obtain highly enantiomerically-enriched biaryls and fluorinated N-C axially chiral scaffolds. Our strategy provided expedient access to, among others, novel chiral BINOLs, dicarboxylic acids and helicenes of value to asymmetric catalysis. Mechanistic studies by experiments and computation provided key insights into the catalyst's mode of action.
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Affiliation(s)
- Uttam Dhawa
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Cong Tian
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Tomasz Wdowik
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Jiping Hao
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
- Wöhler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
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30
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Dhawa U, Tian C, Wdowik T, Oliveira JCA, Hao J, Ackermann L. Enantioselektive Pallada‐elektrokatalysierte C‐H‐Aktivierung durch transiente dirigierende Gruppen: Ein nützlicher Zugang zu Helicenen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003826] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Uttam Dhawa
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Cong Tian
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Tomasz Wdowik
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Jiping Hao
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
- Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
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