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Lunic D, Bergamaschi E, Teskey CJ. Using Light to Modify the Selectivity of Transition Metal Catalysed Transformations. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105043] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Danijela Lunic
- Institute of Organic Chemistry RWTH Aachen Landoltweg 1 52074 Aachen Germany
| | - Enrico Bergamaschi
- Institute of Organic Chemistry RWTH Aachen Landoltweg 1 52074 Aachen Germany
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Lunic D, Bergamaschi E, Teskey CJ. Using Light to Modify the Selectivity of Transition Metal Catalysed Transformations. Angew Chem Int Ed Engl 2021; 60:20594-20605. [PMID: 34043248 PMCID: PMC8519094 DOI: 10.1002/anie.202105043] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Indexed: 12/02/2022]
Abstract
Light has a remarkable and often unique ability to promote chemical reactions. In combination with transition metal catalysis, it offers exciting opportunities to modify catalyst function in a non‐invasive manner, most frequently being reported to switch on or accelerate reactions that do not occur in the dark. However, the ability to completely change reactivity or selectivity between two different reaction outcomes is considerably less common. In this Minireview we bring together examples of this concept and highlight their mechanistically distinct approaches. Our overview demonstrates how these non‐natural, photo‐switchable systems provide key fundamental mechanistic insights, enhancing our understanding and stimulating development of new catalytic activity, and how this might lead to tangible applications, impacting fields such as polymer chemistry.
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Affiliation(s)
- Danijela Lunic
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Enrico Bergamaschi
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Christopher J Teskey
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
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Affiliation(s)
- Christian G. Bochet
- Department of chemistry University of Fribourg 9 Chemin du Musée CH-1700 Fribourg Switzerland
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Nechmad NB, Kobernik V, Tarannam N, Phatake R, Eivgi O, Kozuch S, Lemcoff NG. Reactivity and Selectivity in Ruthenium Sulfur‐Chelated Diiodo Catalysts. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Noy B. Nechmad
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Victoria Kobernik
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Naziha Tarannam
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Ravindra Phatake
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Or Eivgi
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Sebastian Kozuch
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
- Ilse Katz Institute for Nanotechnology Science Ben-Gurion University of the Negev Beer-Sheva 84105 Israel
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Kalaitzakis D, Bosveli A, Sfakianaki K, Montagnon T, Vassilikogiannakis G. Multi-Photocatalyst Cascades: Merging Singlet Oxygen Photooxygenations with Photoredox Catalysis for the Synthesis of Alkaloid Frameworks. Angew Chem Int Ed Engl 2021; 60:4335-4341. [PMID: 33119205 DOI: 10.1002/anie.202012379] [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: 09/11/2020] [Revised: 10/02/2020] [Indexed: 12/13/2022]
Abstract
The development of photocascades that rapidly transform simple and readily accessible furan substrates into polycyclic alkaloid frameworks or erythrina natural products is described. Each of the sequences developed makes use of photocatalyzed energy transfer processes, which generate singlet oxygen, to set up the substrates for the second photocatalyzed reaction, wherein electron transfer generates carbon-centered radicals for the cyclizations that give the final complex frameworks. A chemical switch has been developed that can "switch off" one photocatalyst; thus, allowing a second photocatalyst to take over control of the sequence. As a corollary, this strategy represents the first time it has been possible to use multiple photocatalysts in photocascades, and, as such, it expands significantly the reactions that can be included in such cascades and the order in which they can be initiated.
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Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
| | - Artemis Bosveli
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
| | - Kalliopi Sfakianaki
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
| | - Tamsyn Montagnon
- Department of Chemistry, University of Crete, Vasilika Vouton, 71003, Iraklion, Crete, Greece
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Kalaitzakis D, Bosveli A, Sfakianaki K, Montagnon T, Vassilikogiannakis G. Multi‐Photocatalyst Cascades: Merging Singlet Oxygen Photooxygenations with Photoredox Catalysis for the Synthesis of Alkaloid Frameworks. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dimitris Kalaitzakis
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
| | - Artemis Bosveli
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
| | - Kalliopi Sfakianaki
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
| | - Tamsyn Montagnon
- Department of Chemistry University of Crete Vasilika Vouton 71003 Iraklion Crete Greece
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7
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Nechmad NB, Kobernik V, Tarannam N, Phatake R, Eivgi O, Kozuch S, Lemcoff NG. Reactivity and Selectivity in Ruthenium Sulfur-Chelated Diiodo Catalysts. Angew Chem Int Ed Engl 2021; 60:6372-6376. [PMID: 33576565 DOI: 10.1002/anie.202014929] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/12/2020] [Indexed: 12/18/2022]
Abstract
A trifluoromethyl sulfur-chelated ruthenium benzylidene, Ru-S-CF3 -I, was synthesized and characterized. This latent precatalyst provides a distinct activity and selectivity profiles for olefin metathesis reactions depending on the substrate. For example, 1,3-divinyl-hexahydropentalene derivatives were efficiently obtained by ring-opening metathesis (ROM) of dicyclopentadiene (DCPD). Ru-S-CF3 -I also presented a much more effective photoisomerization process from the inactive cis-diiodo to the active trans-diiodo configuration after exposure to 510 nm (green light), allowing for a wide scope of photoinduced olefin metathesis reactions. DFT calculations suggest a faster formation and enhanced stability of the active trans-diiodo species of Ru-S-CF3 -I compared with Ru-S-Ph-I, explaining its higher reactivity. In addition, the photochemical release of chloride anions by irradiation of Cl-BODIPY in the presence of DCPD derivatives with diiodo Ru benzylidenes, led to in situ generation of chloride complexes, which quickly produced the corresponding cross-linked polymers. Thus, novel selective pathways that use visible light to guide olefin metathesis based synthetic sequences is presented.
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Affiliation(s)
- Noy B Nechmad
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Victoria Kobernik
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Naziha Tarannam
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Ravindra Phatake
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Or Eivgi
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Sebastian Kozuch
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - N Gabriel Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel.,Ilse Katz Institute for Nanotechnology Science, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
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Segalovich-Gerendash G, Rozenberg I, Alassad N, Nechmad NB, Goldberg I, Kozuch S, Lemcoff NG. Imposing Latency in Ruthenium Sulfoxide-Chelated Benzylidenes: Expanding Opportunities for Thermal and Photoactivation in Olefin Metathesis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00676] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Illya Rozenberg
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Nebal Alassad
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Noy B. Nechmad
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Israel Goldberg
- School of Chemistry, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Sebastian Kozuch
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - N. Gabriel Lemcoff
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Beer-Sheva 8410501, Israel
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In Situ Generated Ruthenium-Arene Catalyst for Photoactivated Ring-Opening Metathesis Polymerization through Photolatent N-Heterocyclic Carbene Ligand. Chemistry 2017; 24:337-341. [DOI: 10.1002/chem.201705145] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Indexed: 01/02/2023]
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Eivgi O, Sutar RL, Reany O, Lemcoff NG. Bichromatic Photosynthesis of Coumarins by UV Filter-Enabled Olefin Metathesis. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700316] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Or Eivgi
- Department of Chemistry; Ben-Gurion University of the Negev; Beer-Sheva Israel 84105
| | - Revannath L. Sutar
- Department of Chemistry; Ben-Gurion University of the Negev; Beer-Sheva Israel 84105
- Avinoam Adam Department of Natural Sciences; The Open University of Israel; Ra'anana Israel 43537
| | - Ofer Reany
- Avinoam Adam Department of Natural Sciences; The Open University of Israel; Ra'anana Israel 43537
| | - N. Gabriel Lemcoff
- Department of Chemistry; Ben-Gurion University of the Negev; Beer-Sheva Israel 84105
- Ilse Katz Institute for Nanoscale Science and Technology; Ben-Gurion University of the Negev; Beer-Sheva Israel 84105
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11
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Sashuk V, Danylyuk O. A Thermo- and Photo-Switchable Ruthenium Initiator For Olefin Metathesis. Chemistry 2016; 22:6528-31. [DOI: 10.1002/chem.201600776] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Volodymyr Sashuk
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Oksana Danylyuk
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
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