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Chen HC, Wu Y, Yu Y, Wang P. Pd-Catalyzed Isomerization of Alkenes. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abderrazak Y, Bhattacharyya A, Reiser O. Durch sichtbares Licht induzierte Homolyse unedler, gut verfügbarer Metallsubstratkomplexe: Eine komplementäre Aktivierungsstrategie in der Photoredoxkatalyse. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Youssef Abderrazak
- Institut für Organische Chemie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
| | - Aditya Bhattacharyya
- Institut für Organische Chemie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
| | - Oliver Reiser
- Institut für Organische Chemie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
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Abderrazak Y, Bhattacharyya A, Reiser O. Visible-Light-Induced Homolysis of Earth-Abundant Metal-Substrate Complexes: A Complementary Activation Strategy in Photoredox Catalysis. Angew Chem Int Ed Engl 2021; 60:21100-21115. [PMID: 33599363 PMCID: PMC8519011 DOI: 10.1002/anie.202100270] [Citation(s) in RCA: 131] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/17/2021] [Indexed: 01/16/2023]
Abstract
The mainstream applications of visible-light photoredox catalysis predominately involve outer-sphere single-electron transfer (SET) or energy transfer (EnT) processes of precious metal RuII or IrIII complexes or of organic dyes with low photostability. Earth-abundant metal-based Mn Ln -type (M=metal, Ln =polydentate ligands) complexes are rapidly evolving as alternative photocatalysts as they offer not only economic and ecological advantages but also access to the complementary inner-sphere mechanistic modes, thereby transcending their inherent limitations of ultrashort excited-state lifetimes for use as effective photocatalysts. The generic process, termed visible-light-induced homolysis (VLIH), entails the formation of suitable light-absorbing ligated metal-substrate complexes (Mn Ln -Z; Z=substrate) that can undergo homolytic cleavage to generate Mn-1 Ln and Z. for further transformations.
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Affiliation(s)
- Youssef Abderrazak
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Aditya Bhattacharyya
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
| | - Oliver Reiser
- Institut für Organische Chemie, Universität Regensburg, Universitätsstrasse 31, 93053, Regensburg, Germany
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Beltran F, Bergamaschi E, Funes‐Ardoiz I, Teskey CJ. Photocontrolled Cobalt Catalysis for Selective Hydroboration of α,β‐Unsaturated Ketones. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009893] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Frédéric Beltran
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Enrico Bergamaschi
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Ignacio Funes‐Ardoiz
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Christopher J. Teskey
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
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Beltran F, Bergamaschi E, Funes‐Ardoiz I, Teskey CJ. Photocontrolled Cobalt Catalysis for Selective Hydroboration of α,β-Unsaturated Ketones. Angew Chem Int Ed Engl 2020; 59:21176-21182. [PMID: 32767728 PMCID: PMC7692884 DOI: 10.1002/anie.202009893] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Indexed: 11/08/2022]
Abstract
Selectivity between 1,2 and 1,4 addition of a nucleophile to an α,β-unsaturated carbonyl compound has classically been modified by the addition of stoichiometric additives to the substrate or reagent to increase their "hard" or "soft" character. Here, we demonstrate a conceptually distinct approach that instead relies on controlling the coordination sphere of a catalyst with visible light. In this way, we bias the reaction down two divergent pathways, giving contrasting products in the catalytic hydroboration of α,β-unsaturated ketones. This includes direct access to previously elusive cyclic enolborates, via 1,4-selective hydroboration, providing a straightforward and stereoselective route to rare syn-aldol products in one-pot. DFT calculations and mechanistic experiments confirm two different mechanisms are operative, underpinning this unusual photocontrolled selectivity switch.
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Affiliation(s)
- Frédéric Beltran
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Enrico Bergamaschi
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Ignacio Funes‐Ardoiz
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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Bergamaschi E, Beltran F, Teskey CJ. Visible-Light Controlled Divergent Catalysis Using a Bench-Stable Cobalt(I) Hydride Complex. Chemistry 2020; 26:5180-5184. [PMID: 32027425 PMCID: PMC7217149 DOI: 10.1002/chem.202000410] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Indexed: 01/22/2023]
Abstract
While the use of visible light in conjunction with transition metal catalysis offers powerful opportunities to switch between on/‐off states of catalytic activity, the next frontier would be the ability to switch the actual function of the catalyst and resulting products. Here we report such an example of multi‐dimensional catalysis. Featuring an easily prepared, bench‐stable cobalt(I) hydride complex in conjunction with pinacolborane, we can switch the reaction outcome between two widely employed transformations, olefin migration and hydroboration, with visible light as the trigger.
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Affiliation(s)
- Enrico Bergamaschi
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Frédéric Beltran
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Christopher J Teskey
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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Hassam M, Taher A, Arnott GE, Green IR, van Otterlo WAL. Isomerization of Allylbenzenes. Chem Rev 2015; 115:5462-569. [DOI: 10.1021/acs.chemrev.5b00052] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mohammad Hassam
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Abu Taher
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Gareth E. Arnott
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Ivan R. Green
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Willem A. L. van Otterlo
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
- School
of Chemistry, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa
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Nguyen TB, Martel A, Dhal R, Dujardin G. 1,3-Dipolar Cycloaddition of N-Substituted Dipolarophiles and Nitrones: Highly Efficient Solvent-Free Reaction. J Org Chem 2008; 73:2621-32. [DOI: 10.1021/jo702490w] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Arnaud Martel
- UCO2M 6011 CNRS, Université du Maine, 72085, Le Mans, France
| | - Robert Dhal
- UCO2M 6011 CNRS, Université du Maine, 72085, Le Mans, France
| | - Gilles Dujardin
- UCO2M 6011 CNRS, Université du Maine, 72085, Le Mans, France
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Escoubet S, Gastaldi S, Bertrand M. Methods for the Cleavage of Allylic and Propargylic C–N Bonds in Amines and Amides – Selected Alternative Applications of the 1,3‐Hydrogen Shift. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500204] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Stéphanie Escoubet
- Laboratoire de Chimie Moléculaire Organique, UMR 6517, Boite 562, Faculté des Sciences St Jérôme, Université Paul Cézanne (Aix‐Marseille III), Av. Normandie‐Niemen, 13397 Marseille Cedex 20, France
| | - Stéphane Gastaldi
- Laboratoire de Chimie Moléculaire Organique, UMR 6517, Boite 562, Faculté des Sciences St Jérôme, Université Paul Cézanne (Aix‐Marseille III), Av. Normandie‐Niemen, 13397 Marseille Cedex 20, France
| | - Michèle Bertrand
- Laboratoire de Chimie Moléculaire Organique, UMR 6517, Boite 562, Faculté des Sciences St Jérôme, Université Paul Cézanne (Aix‐Marseille III), Av. Normandie‐Niemen, 13397 Marseille Cedex 20, France
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Krompiec S, Pigulla M, Kuźnik N, Krompiec M, Marciniec B, Chadyniak D, Kasperczyk J. Highly selective isomerization of N-allylamides catalyzed by ruthenium and rhodium complexes. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2004.09.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Krompiec S, Kuźnik N, Penczek R, Rzepa J, Mrowiec-Białoń J. Isomerization of allyl aryl ethers to their 1-propenyl derivatives catalysed by ruthenium complexes. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcata.2004.04.039] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Krompiec S, Pigulla M, Krompiec M, Baj S, Mrowiec-Białoń J, Kasperczyk J. Highly selective isomerization of N-allylamides and N-allylamines. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.05.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Krompiec S, Pigulla M, Szczepankiewicz W, Bieg T, Kuznik N, Leszczynska-Sejda K, Kubicki M, Borowiak T. Highly selective synthesis of (E)-N-aryl-N-(1-propenyl) ethanamides via isomerization of N-allyl ethanamides catalyzed by ruthenium complexes. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01457-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Onishi M. Decomposition of formic acid catalyzed by hydrido (phosphonite) cobalt (I) under photoirradiation. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0304-5102(93)85073-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Onishi M, Matsuda M, Takaki I, Hiraki K, Oishi S. Catalytic Intermolecular Hydrogen Transfer with Photogenerated Hydride Transient CoH[PPh(OEt)2]3. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1989. [DOI: 10.1246/bcsj.62.2963] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Mague JT. Cobalt, rhodium and iridium. J Organomet Chem 1988. [DOI: 10.1016/0022-328x(88)83169-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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