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Affiliation(s)
| | - Chengming Wang
- Jinan University Chemistry 601 West Huangpu Avenue 510632 Guangzhou CHINA
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2
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Kanai Y, Müller‐Borges D, Plenio H. The Regioselective Arylation of 1,3‐Benzodioxoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101014] [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)
- Yuki Kanai
- Organometallic Chemistry Technische Universität Darmstadt Alarich-Weiss-Str. 12 64287 Darmstadt Germany
| | - Dorian Müller‐Borges
- Organometallic Chemistry Technische Universität Darmstadt Alarich-Weiss-Str. 12 64287 Darmstadt Germany
| | - Herbert Plenio
- Organometallic Chemistry Technische Universität Darmstadt Alarich-Weiss-Str. 12 64287 Darmstadt Germany
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3
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Bhattacharya T, Dutta S, Maiti D. Deciphering the Role of Silver in Palladium-Catalyzed C–H Functionalizations. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02552] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Trisha Bhattacharya
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Subhabrata Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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4
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Fischer O, Heinrich MR. 2-Fluoro-5-nitrophenyldiazonium: A Novel Sanger-Type Reagent for the Versatile Functionalization of Alcohols. Chemistry 2021; 27:5417-5421. [PMID: 33481282 PMCID: PMC8048593 DOI: 10.1002/chem.202100187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 12/15/2022]
Abstract
As a novel Sanger-type reagent, 2-fluoro-5-nitrophenyldiazonium tetrafluoroborate enabled the versatile functionalization of primary and secondary aliphatic alcohols. Based on a mild nucleophilic aromatic substitution of the fluorine atom under unprecedented, base-free conditions, the diazonium unit on the aromatic core of the resulting aryl-alkyl ether could be employed for such diverse transformations as radical C-H activation and cyclization, as well as palladium catalyzed cross-coupling reactions.
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Affiliation(s)
- Oliver Fischer
- Department of Chemistry and Pharmacy, Pharmaceutical ChemistryFriedrich-Alexander-Universität Erlangen-NürnbergNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Markus R. Heinrich
- Department of Chemistry and Pharmacy, Pharmaceutical ChemistryFriedrich-Alexander-Universität Erlangen-NürnbergNikolaus-Fiebiger-Str. 1091058ErlangenGermany
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5
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Tlahuext-Aca A, Lee SY, Sakamoto S, Hartwig JF. Direct Arylation of Simple Arenes with Aryl Bromides by Synergistic Silver and Palladium Catalysis. ACS Catal 2021; 11:1430-1434. [PMID: 34790433 PMCID: PMC8594911 DOI: 10.1021/acscatal.0c05254] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The direct, catalytic arylation of simple arenes in small excess with aryl bromides is disclosed. The developed method does not require the assistance of directing groups and relies on a synergistic catalytic cycle in which phosphine-ligated silver complexes cleave the aryl C-H bond, while palladium catalysts enable the formation of the biaryl products. Mechanistic experiments, including kinetic isotope effects, competition experiments, and hydrogen-deuterium exchange, support a catalytic cycle in which cleavage of the C-H bond by silver is the rate-determining step.
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Affiliation(s)
- Adrian Tlahuext-Aca
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Sarah Yunmi Lee
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Shu Sakamoto
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - John F Hartwig
- Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
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6
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Dos Santos EEF, de Souza GFP, Simoni DA, Salles AG. A base-promoted tandem approach to bicyclic 8-membered ring ketones. Org Biomol Chem 2020; 18:3249-3253. [PMID: 32292986 DOI: 10.1039/d0ob00618a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A base-promoted tandem route toward unprecedented bicyclic 8-membered ring ketones is reported. Under our approach, the targeted products are delivered in high yields from phenylacetylenes and 1,3-diketones. The method has a good scope and gives access to a complex structure that offers a wealth of opportunities for further functionalization.
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Affiliation(s)
- Emerson E F Dos Santos
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, São Paulo, 13084-862, Brazil.
| | - Gabriela F P de Souza
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, São Paulo, 13084-862, Brazil.
| | - Deborah A Simoni
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, São Paulo, 13084-862, Brazil.
| | - Airton G Salles
- Department of Organic Chemistry, Institute of Chemistry, University of Campinas, P.O. Box 6154, Campinas, São Paulo, 13084-862, Brazil.
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7
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Mittmann E, Hu Y, Peschke T, Rabe KS, Niemeyer CM, Bräse S. Chemoenzymatic Synthesis ofO‐Containing Heterocycles fromα‐Diazo Esters. ChemCatChem 2019. [DOI: 10.1002/cctc.201901602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Esther Mittmann
- Karlsruhe Institute of Technology (KIT)Institute for Biological Interfaces (IBG 1) Hermann-von-Helmholtz-Platz 76344 Eggenstein-Leopoldschafen Germany
| | - Yuling Hu
- Karlsruhe Institute of Technology (KIT)Institute of Organic Chemistry (IOC) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Theo Peschke
- Karlsruhe Institute of Technology (KIT)Institute for Biological Interfaces (IBG 1) Hermann-von-Helmholtz-Platz 76344 Eggenstein-Leopoldschafen Germany
- Novartis Pharma AGChemical and Analytical Development (CHAD) 4056 Basel Switzerland
| | - Kersten S. Rabe
- Karlsruhe Institute of Technology (KIT)Institute for Biological Interfaces (IBG 1) Hermann-von-Helmholtz-Platz 76344 Eggenstein-Leopoldschafen Germany
| | - Christof M. Niemeyer
- Karlsruhe Institute of Technology (KIT)Institute for Biological Interfaces (IBG 1) Hermann-von-Helmholtz-Platz 76344 Eggenstein-Leopoldschafen Germany
- Karlsruhe Institute of Technology (KIT)Institute of Organic Chemistry (IOC) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Stefan Bräse
- Karlsruhe Institute of Technology (KIT)Institute of Organic Chemistry (IOC) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
- Karlsruhe Institute of Technology (KIT)Institute of Toxicology and Genetics (IOC) Hermann-von-Helmholtz-Platz 76344 Eggenstein-Leopoldschafen Germany
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8
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Batuecas M, Luo J, Gergelitsová I, Krämer K, Whitaker D, Vitorica-Yrezabal IJ, Larrosa I. Catalytic Asymmetric C-H Arylation of (η 6-Arene)Chromium Complexes: Facile Access to Planar-Chiral Phosphines. ACS Catal 2019; 9:5268-5278. [PMID: 32064145 PMCID: PMC7011738 DOI: 10.1021/acscatal.9b00918] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/25/2019] [Indexed: 12/20/2022]
Abstract
A catalytic asymmetric direct C-H arylation of (η6-arene)chromium complexes to obtain planar-chiral compounds is reported. The use of the hemilabile ligand H8-BINAP(O) is key to providing high enantioselectivity in this transformation. We show that this methodology opens the door to the synthesis of a variety of planar-chiral chromium derivatives which can be easily transformed into planar chiral mono- or diphosphines. Mechanistic studies, including synthesis and characterization of Pd and Ag complexes and their detection in the reaction mixture, suggest a Pd-catalyzed/Ag-promoted catalytic system where Ag carries out the C-H activation step.
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Affiliation(s)
- María Batuecas
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United
Kingdom
| | - Junfei Luo
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United
Kingdom
| | - Ivana Gergelitsová
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United
Kingdom
- Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Katrina Krämer
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United
Kingdom
| | - Daniel Whitaker
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United
Kingdom
| | | | - Igor Larrosa
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United
Kingdom
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Font M, Spencer ARA, Larrosa I. meta-C-H arylation of fluoroarenes via traceless directing group relay strategy. Chem Sci 2018; 9:7133-7137. [PMID: 30310635 PMCID: PMC6137440 DOI: 10.1039/c8sc02417k] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/25/2018] [Indexed: 11/21/2022] Open
Abstract
While several methods for the ortho selective arylation of fluoroarenes, meta-functionalisation has never been achieved. We report a new methodology, based on the traceless directing group relay concept, leading to the first meta-selective (hetero)arylation of fluoroarenes. In this strategy, CO2 is introduced as a transient directing group, to control a Pd-catalysed arylation meta to the fluoro functionality, prior to its release in a sequential, one-pot fashion. This method has shown compatibility with a number of functional groups and substitution patterns in both the fluoroarene core and aryl iodide coupling partners, and proceeds with complete meta-selectivity and mono vs. bis-arylation selectivity.
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Affiliation(s)
- Marc Font
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Andrew R A Spencer
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Igor Larrosa
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
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10
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Takemoto S, Matsuzaka H. Recent topics on catalytic transformations of aromatic molecules via η 6 -arene transition metal complexes. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bigler R, Aggarwal VK. ortho
-Directing Chromium Arene Complexes as Efficient Mediators for Enantiospecific C(sp 2
)-C(sp 3
) Cross-Coupling Reactions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Raphael Bigler
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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12
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Bigler R, Aggarwal VK. ortho
-Directing Chromium Arene Complexes as Efficient Mediators for Enantiospecific C(sp2
)-C(sp3
) Cross-Coupling Reactions. Angew Chem Int Ed Engl 2018; 57:1082-1086. [DOI: 10.1002/anie.201711816] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Raphael Bigler
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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