1
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Iwamoto H, Ozawa Y, Hayashi Y, Imamoto T, Ito H. Conformationally Fixed Chiral Bisphosphine Ligands by Steric Modulators on the Ligand Backbone: Selective Synthesis of Strained 1,2-Disubstituted Chiral cis-Cyclopropanes. J Am Chem Soc 2022; 144:10483-10494. [DOI: 10.1021/jacs.2c02745] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hiroaki Iwamoto
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yu Ozawa
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yuta Hayashi
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Tsuneo Imamoto
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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2
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Iwamoto H, Ozawa Y, Takenouchi Y, Imamoto T, Ito H. Backbone-Modified C2-Symmetrical Chiral Bisphosphine TMS-QuinoxP*: Asymmetric Borylation of Racemic Allyl Electrophiles. J Am Chem Soc 2021; 143:6413-6422. [PMID: 33891398 DOI: 10.1021/jacs.0c08899] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A new C2-symmetrical P-chirogenic bisphosphine ligand with silyl substituents on the ligand backbone, (R,R)-5,8-TMS-QuinoxP*, has been developed. This ligand showed higher reactivity and enantioselectivity for the direct enantioconvergent borylation of cyclic allyl electrophiles than its parent ligand, (R,R)-QuinoxP* (e.g., for a piperidine-type substrate: 95% ee vs 76% ee). The borylative kinetic resolution of linear allyl electrophiles was also achieved using (R,R)-5,8-TMS-QuinoxP* (up to 90% ee, s = 46.4). An investigation into the role of the silyl groups on the ligand backbone using X-ray crystallography and computational studies displayed interlocking structures between the phosphine and silyl moieties of (R,R)-5,8-TMS-QuinoxP*. The results of DFT calculations revealed that the entropy effect thermodynamically destabilizes the dormant dimer species in the catalytic cycle to improve the reactivity. Furthermore, in the direct enantioconvergent case, detailed calculations indicated a pronounced enantioselective recognition of carbon-carbon double bonds, which is virtually unaffected by the chirality at the allylic position, as a key for the borylation from both enantiomers of racemic allyl electrophiles.
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Affiliation(s)
- Hiroaki Iwamoto
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yu Ozawa
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Yuta Takenouchi
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Tsuneo Imamoto
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-Ku, Tokyo 136-8515, Japan.,Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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3
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Li Y, Lou Z, Li H, Yang H, Zhao Y, Fu H. Bioorthogonal Ligation and Cleavage by Reactions of Chloroquinoxalines with
ortho
‐Dithiophenols. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Youshan Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)Department of ChemistryTsinghua University Beijing 100084 China
| | - Zhenbang Lou
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)Department of ChemistryTsinghua University Beijing 100084 China
| | - Hongyun Li
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)Department of ChemistryTsinghua University Beijing 100084 China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)Department of ChemistryTsinghua University Beijing 100084 China
| | - Yufen Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)Department of ChemistryTsinghua University Beijing 100084 China
| | - Hua Fu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education)Department of ChemistryTsinghua University Beijing 100084 China
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4
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Bioorthogonal Ligation and Cleavage by Reactions of Chloroquinoxalines with
ortho
‐Dithiophenols. Angew Chem Int Ed Engl 2020; 59:3671-3677. [DOI: 10.1002/anie.201913620] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/04/2019] [Indexed: 01/10/2023]
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5
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Neri JM, Cavalcanti LN, Araújo RM, Menezes FG. 2,3-Dichloroquinoxaline as a versatile building block for heteroaromatic nucleophilic substitution: A review of the last decade. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.07.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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6
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Nosova EV, Achelle S, Lipunova GN, Charushin VN, Chupakhin ON. Functionalized benzazines as luminescent materials and components for optoelectronics. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4887] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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7
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Li J, Tan E, Keller N, Chen YH, Zehetmaier PM, Jakowetz AC, Bein T, Knochel P. Cobalt-Catalyzed Electrophilic Aminations with Anthranils: An Expedient Route to Condensed Quinolines. J Am Chem Soc 2018; 141:98-103. [PMID: 30558415 PMCID: PMC6400427 DOI: 10.1021/jacs.8b11466] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
![]()
The
reaction of various organozinc pivalates with anthranils provides
anilines derivatives, which cyclize under acidic conditions providing
condensed quinolines. Using alkenylzinc pivalates, electron-rich arylzinc
pivalates or heterocyclic zinc pivalates produces directly the condensed
quinolines of which several structures belong to new heterocyclic
scaffolds. These N-heterocycles are of particular interest for organic
light emitting diodes with their high photoluminescence quantum yields
and long exciton lifetimes as well as for hole-transporting materials
in methylammonium lead iodide perovskites solar cells due to an optimal
band alignment for holes and a large bandgap.
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Affiliation(s)
- Jie Li
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany.,School of Pharmaceutical Science , Jiangnan University , Lihu Road 1800 , 214122 Wuxi , Jiangsu , China
| | - Eric Tan
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Niklas Keller
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Yi-Hung Chen
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Peter M Zehetmaier
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Andreas C Jakowetz
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Thomas Bein
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
| | - Paul Knochel
- Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13, Haus F , 81377 Munich , Germany
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8
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Elbert SM, Reinschmidt M, Baumgärtner K, Rominger F, Mastalerz M. Benzopyrano-Fused N-Heterocyclic Polyaromatics. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701796] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Sven M. Elbert
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Martin Reinschmidt
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Kevin Baumgärtner
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
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9
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Erdmann E, Villinger A, König B, Seidel WW. 1,10-Phenanthroline-dithiine iridium and ruthenium complexes: synthesis, characterization and photocatalytic dihydrogen evolution. Photochem Photobiol Sci 2018; 17:1056-1067. [DOI: 10.1039/c8pp00068a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Extending 1,10-phenanthroline with a dithiine link led to a remarkable increase of the luminescence lifetimes of the respective Ir(ppy)2 and Ru(bpy)2 complexes.
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Affiliation(s)
- E. Erdmann
- Institute of Organic Chemistry
- Faculty of Chemistry and Pharmacy
- Universität Regensburg
- 93053 Regensburg
- Germany
| | - A. Villinger
- Institut für Chemie
- Universität Rostock
- 18059 Rostock
- Germany
| | - B. König
- Institute of Organic Chemistry
- Faculty of Chemistry and Pharmacy
- Universität Regensburg
- 93053 Regensburg
- Germany
| | - W. W. Seidel
- Institut für Chemie
- Universität Rostock
- 18059 Rostock
- Germany
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10
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Milić J, Zalibera M, Talaat D, Nomrowski J, Trapp N, Ruhlmann L, Boudon C, Wenger OS, Savitsky A, Lubitz W, Diederich F. Photoredox-Switchable Resorcin[4]arene Cavitands: Radical Control of Molecular Gripping Machinery via Hydrogen Bonding. Chemistry 2017; 24:1431-1440. [DOI: 10.1002/chem.201704788] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Jovana Milić
- Laboratory of Organic Chemistry; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Michal Zalibera
- Institute of Physical Chemistry and Chemical Physics; Slovak University of Technology; Radlinského 9 81237 Bratislava Slovakia
- Max Planck Institute for Chemical Energy Conversion; Stiftstrasse 34-36 45470 Mülheim an der Ruhr Germany
| | - Darius Talaat
- Laboratory of Organic Chemistry; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Julia Nomrowski
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Nils Trapp
- Laboratory of Organic Chemistry; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Laurent Ruhlmann
- Laboratoire d'Électrochimie et Chimie Physique du Corps Solide, Institut de Chimie de Strasbourg; Université de Strasbourg; 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Corinne Boudon
- Laboratoire d'Électrochimie et Chimie Physique du Corps Solide, Institut de Chimie de Strasbourg; Université de Strasbourg; 4 rue Blaise Pascal, CS 90032 67081 Strasbourg France
| | - Oliver S. Wenger
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Anton Savitsky
- Max Planck Institute for Chemical Energy Conversion; Stiftstrasse 34-36 45470 Mülheim an der Ruhr Germany
| | - Wolfgang Lubitz
- Max Planck Institute for Chemical Energy Conversion; Stiftstrasse 34-36 45470 Mülheim an der Ruhr Germany
| | - François Diederich
- Laboratory of Organic Chemistry; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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11
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Abstract
Azines, which are six-membered aromatic compounds containing one or more nitrogen atoms, serve as ubiquitous structural cores of aromatic species with important applications in biological and materials sciences. Among a variety of synthetic approaches toward azines, C-H functionalization represents the most rapid and atom-economical transformation, and it is advantageous for the late-stage functionalization of azine-containing functional molecules. Since azines have several C-H bonds with different reactivities, the development of new reactions that allow for the functionalization of azines in a regioselective fashion has comprised a central issue. This review describes recent advances in the C-H functionalization of azines categorized as follows: (1) SNAr reactions, (2) radical reactions, (3) deprotonation/functionalization, and (4) metal-catalyzed reactions.
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Affiliation(s)
- Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Shuya Yamada
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Takeshi Kaneda
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, and ‡JST-ERATO, Itami Molecular Nanocarbon Project, Nagoya University , Chikusa, Nagoya 464-8602, Japan
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12
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Auras F, Ascherl L, Hakimioun AH, Margraf JT, Hanusch FC, Reuter S, Bessinger D, Döblinger M, Hettstedt C, Karaghiosoff K, Herbert S, Knochel P, Clark T, Bein T. Synchronized Offset Stacking: A Concept for Growing Large-Domain and Highly Crystalline 2D Covalent Organic Frameworks. J Am Chem Soc 2016; 138:16703-16710. [PMID: 27992179 PMCID: PMC6400430 DOI: 10.1021/jacs.6b09787] [Citation(s) in RCA: 151] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
![]()
Covalent
organic frameworks (COFs), formed by reversible condensation
of rigid organic building blocks, are crystalline and porous materials
of great potential for catalysis and organic electronics. Particularly
with a view of organic electronics, achieving a maximum degree of
crystallinity and large domain sizes while allowing for a tightly
π-stacked topology would be highly desirable. We present a design
concept that uses the 3D geometry of the building blocks to generate
a lattice of uniquely defined docking sites for the attachment of
consecutive layers, thus allowing us to achieve a greatly improved
degree of order within a given average number of attachment and detachment
cycles during COF growth. Synchronization of the molecular geometry
across several hundred nanometers promotes the growth of highly crystalline
frameworks with unprecedented domain sizes. Spectroscopic data indicate
considerable delocalization of excitations along the π-stacked
columns and the feasibility of donor–acceptor excitations across
the imine bonds. The frameworks developed in this study can serve
as a blueprint for the design of a broad range of tailor-made 2D COFs
with extended π-conjugated building blocks for applications
in photocatalysis and optoelectronics.
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Affiliation(s)
- Florian Auras
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany.,Cavendish Laboratory, University of Cambridge , Cambridge CB3 0HE, United Kingdom
| | - Laura Ascherl
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Amir H Hakimioun
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU) , Computer-Chemie-Centrum, Nägelsbachstraße 25, 91052 Erlangen, Germany
| | - Johannes T Margraf
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU) , Computer-Chemie-Centrum, Nägelsbachstraße 25, 91052 Erlangen, Germany
| | - Fabian C Hanusch
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Stephan Reuter
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Derya Bessinger
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Markus Döblinger
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Christina Hettstedt
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Konstantin Karaghiosoff
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Simon Herbert
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
| | - Timothy Clark
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU) , Computer-Chemie-Centrum, Nägelsbachstraße 25, 91052 Erlangen, Germany
| | - Thomas Bein
- Department of Chemistry and Center for NanoScience (CeNS), University of Munich (LMU) , Butenandtstraße 5-13, 81377 Munich, Germany
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13
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Fernandez S, Ganiek MA, Karpacheva M, Hanusch FC, Reuter S, Bein T, Auras F, Knochel P. Synthesis and Reactivity of Triazaphenanthrenes. Org Lett 2016; 18:3158-61. [PMID: 27321707 PMCID: PMC5291649 DOI: 10.1021/acs.orglett.6b01373] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 11/28/2022]
Abstract
Pyridonaphthyridines (triazaphenanthrenes) were prepared in 4 steps and in 13-52% overall yield using Negishi cross-couplings between iodopicolines and 2-chloro-pyridylzinc derivatives. After chlorination, Gabriel amination and spontaneous ring-closure, the final aromatization leading to the triazaphenanthrenes was achieved with chloranil. This heterocyclic scaffold underwent a nucleophilic addition at position 6 leading to further functionalized pyridonaphthyridines. The influence of these chemical modifications on the optical properties was studied by steady-state and time-resolved optical spectroscopy. While the thiophene-substituted heterocycles exhibited the most extended absorption, the phenyl- and furan-substituted compounds showed a stronger photoluminescence, reaching above 20% quantum yield and lifetimes of several nanoseconds.
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Affiliation(s)
- Sarah Fernandez
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Maximilian A. Ganiek
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Mariia Karpacheva
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
| | - Fabian C. Hanusch
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
- Center for NanoScience (CeNS), University of Munich, 81377 Munich, Germany
| | - Stephan Reuter
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
- Center for NanoScience (CeNS), University of Munich, 81377 Munich, Germany
| | - Thomas Bein
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
- Center for NanoScience (CeNS), University of Munich, 81377 Munich, Germany
| | - Florian Auras
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
- Center for NanoScience (CeNS), University of Munich, 81377 Munich, Germany
| | - Paul Knochel
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
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14
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Nafe J, Auras F, Karaghiosoff K, Bein T, Knochel P. Selective Functionalization of Tetrathiafulvalene Using Mg- and Zn-TMP-Bases: Preparation of Mono-, Di-, Tri-, and Tetrasubstituted Derivatives. Org Lett 2015; 17:5356-9. [PMID: 26469280 PMCID: PMC4797621 DOI: 10.1021/acs.orglett.5b02715] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Indexed: 11/30/2022]
Abstract
The tetrathiafulvalene-scaffold (TTF) reacts selectively in allylation, acylation, arylation, halogenation, and thiolation reactions via magnesium or zinc derivatives that are obtained by a direct metalation with Mg- and Zn-TMP-bases (TMP = 2,2,6,6-tetramethylpiperidyl). This stepwise functionalization provides access to a range of new mono-, di-, tri-, and tetra-functionalized TTF-derivatives and allows for fine-tuning of their energy levels.
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Affiliation(s)
- Julia Nafe
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Florian Auras
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Konstantin Karaghiosoff
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Thomas Bein
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Paul Knochel
- Department
of Chemistry, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
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15
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Nxumalo W, Dinsmore A. Magnesiation of N-Heterocycles Using i-PrMgCl · LiCl and Catalytic Diisopropylamine. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1090607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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