1
|
Lemcoff N, Nechmad NB, Eivgi O, Yehezkel E, Shelonchik O, Phatake RS, Yesodi D, Vaisman A, Biswas A, Lemcoff NG, Weizmann Y. Plasmonic visible-near infrared photothermal activation of olefin metathesis enabling photoresponsive materials. Nat Chem 2023; 15:475-482. [PMID: 36702882 DOI: 10.1038/s41557-022-01124-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/13/2022] [Indexed: 01/27/2023]
Abstract
Light-induced catalysis and thermoplasmonics are promising fields creating many opportunities for innovative research. Recent advances in light-induced olefin metathesis have led to new applications in polymer and material science, but further improvements to reaction scope and efficiency are desired. Herein, we present the activation of latent ruthenium-based olefin metathesis catalysts via the photothermal response of plasmonic gold nanobipyramids. Simple synthetic control over gold nanobipyramid size results in tunable localized surface plasmon resonance bands enabling catalyst initiation with low-energy visible and infrared light. This approach was applied to the ROMP of dicyclopentadiene, affording plasmonic polymer composites with exceptional photoresponsive and mechanical properties. Moreover, this method of catalyst activation was proven to be remarkably more efficient than activation through conventional heating in all the metathesis processes tested. This study paves the way for providing a wide range of photoinduced olefin metathesis processes in particular and photoinduced latent organic reactions in general by direct photothermal activation of thermally latent catalysts.
Collapse
Affiliation(s)
- Nir Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Noy B Nechmad
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Or Eivgi
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Elad Yehezkel
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ofir Shelonchik
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ravindra S Phatake
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Doron Yesodi
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Anna Vaisman
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Aritra Biswas
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - N Gabriel Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Ilse Katz Institute for Nanotechnology Science, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yossi Weizmann
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
- Ilse Katz Institute for Nanotechnology Science, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| |
Collapse
|
2
|
Musso JV, Gebel P, Gramm V, Frey W, Buchmeiser MR. Tungsten Oxo and Tungsten Imido Alkylidene N-Heterocyclic Carbene Complexes for the Visible-Light-Induced Ring-Opening Metathesis Polymerization of Dicyclopentadiene. Macromolecules 2023. [DOI: 10.1021/acs.macromol.3c00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
3
|
Fast Initiating Furan-Containing Hoveyda-Type Complexes: Synthesis and Applications in Metathesis Reactions. CHEMISTRY 2022. [DOI: 10.3390/chemistry4030056] [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
Two new ruthenium complexes with chelating-ether benzylidene ligands bearing a furan moiety were synthesized and characterized, including X-ray crystallography. They initiated fast, also at 0 °C, and were found to be highly active in a variety of ring-closing, ene-yne, and cross-metathesis reactions, including an active pharmaceutical ingredient (API) model, which makes them good candidates for the transformation of complex polyfunctional compounds that require mild reaction conditions.
Collapse
|
4
|
Kośnik W, Lichosyt D, Śnieżek M, Janaszkiewicz A, Woźniak K, Malińska M, Trzaskowski B, Kajetanowicz A, Grela K. Ruthenium Olefin Metathesis Catalysts Bearing a Macrocyclic N-Heterocyclic Carbene Ligand: Improved Stability and Activity. Angew Chem Int Ed Engl 2022; 61:e202201472. [PMID: 35347824 PMCID: PMC9322543 DOI: 10.1002/anie.202201472] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Indexed: 12/27/2022]
Abstract
Formation of sterically hindered C-C double bonds via catalytic olefin metathesis is considered a very challenging task for Ru catalysts. This limitation led to the development of specialised catalysts bearing sterically reduced N-heterocyclic carbene (NHC) ligands that are very active in such transformations, yet significantly less stable as compared to general purpose catalysts. To decrease the small-size NHC catalysts susceptibility to decomposition, a new NHC ligand was designed, in which two sterically reduced aryl arms were tied together by a C-8 alkyl chain. The installation of this macrocyclic ligand on the ruthenium centre led to the formation of an olefin metathesis catalyst (trans-Ru6). Interestingly, this complex undergoes transformation into an isomer bearing two Cl ligands in the cis-arrangement (cis-Ru6). These two isomeric complexes exhibit similarly high thermodynamic stability, yet different application profiles in catalysis.
Collapse
Affiliation(s)
- Wioletta Kośnik
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
| | - Dawid Lichosyt
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
| | - Marcin Śnieżek
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | | | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
| | - Maura Malińska
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
| | - Bartosz Trzaskowski
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097, Warsaw, Poland
| | - Anna Kajetanowicz
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
| | - Karol Grela
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland.,Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| |
Collapse
|
5
|
Kośnik W, Lichosyt D, Śnieżek M, Janaszkiewicz A, Woźniak K, Malińska M, Trzaskowski B, Kajetanowicz A, Grela K. Ruthenium Olefin Metathesis Catalysts Bearing a Macrocyclic N‐Heterocyclic Carbene Ligand: Improved Stability and Activity. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wioletta Kośnik
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury Street 101 02-089 Warsaw Poland
| | - Dawid Lichosyt
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury Street 101 02-089 Warsaw Poland
| | - Marcin Śnieżek
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | | | - Krzysztof Woźniak
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury Street 101 02-089 Warsaw Poland
| | - Maura Malińska
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury Street 101 02-089 Warsaw Poland
| | - Bartosz Trzaskowski
- Centre of New Technologies University of Warsaw Banacha 2c 02-097 Warsaw Poland
| | - Anna Kajetanowicz
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury Street 101 02-089 Warsaw Poland
| | - Karol Grela
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury Street 101 02-089 Warsaw Poland
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| |
Collapse
|
6
|
Ali R, Ahmed W, Jayant V, alvi S, Ahmed N, Ahmed A. Metathesis reactions in total‐ and natural product fragments syntheses. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rashid Ali
- Jamia Millia Islamia New Delhi India 110025 Department of Chemistry Jamia Nagar,New Delhi india110025 110025 New Delhi INDIA
| | - Waqar Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Vikrant Jayant
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - shakeel alvi
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Nadeem Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| | - Azeem Ahmed
- Jamia Millia Islamia Central University: Jamia Millia Islamia Chemistry INDIA
| |
Collapse
|
7
|
Alassad N, Nechmad NB, Phatake RS, Reany O, Lemcoff NG. Steric and electronic effects in latent S-chelated olefin metathesis catalysts. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00943a] [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
In this work, the structure, latency, and activity of twelve sulfur-chelated ruthenium precatalysts were studied by systematically varying their ligand shell.
Collapse
Affiliation(s)
- 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
| | - Ravindra S. Phatake
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- Department of Natural Sciences, The Open University of Israel, Ra'anana 4353701, Israel
| | - Ofer Reany
- Department of Natural Sciences, The Open University of Israel, Ra'anana 4353701, Israel
| | - N. Gabriel Lemcoff
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| |
Collapse
|
8
|
Park S, Byun S, Ryu H, Hahm H, Lee J, Hong S. Reversibly Photoswitchable Catalysts for Olefin Metathesis Reactions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Seongwook Park
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
- Grubbs Center for Polymers and Catalysis, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Seunghwan Byun
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Huijeoung Ryu
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Hyungwoo Hahm
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Junseong Lee
- Department of Chemistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Sukwon Hong
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
- Grubbs Center for Polymers and Catalysis, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| |
Collapse
|
9
|
Aharon S, Meyerstein D, Tzur E, Shamir D, Albo Y, Burg A. Advanced sol-gel process for efficient heterogeneous ring-closing metathesis. Sci Rep 2021; 11:12506. [PMID: 34131206 PMCID: PMC8206332 DOI: 10.1038/s41598-021-92043-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/28/2021] [Indexed: 11/09/2022] Open
Abstract
Olefin metathesis, a powerful synthetic method with numerous practical applications, can be improved by developing heterogeneous catalysts that can be recycled. In this study, a single-stage process for the entrapment of ruthenium-based catalysts was developed by the sol-gel process. System effectiveness was quantified by measuring the conversion of the ring-closing metathesis reaction of the substrate diethyl diallylmalonate and the leakage of the catalysts from the matrix. The results indicate that the nature of the precursor affects pore size and catalyst activity. Moreover, matrices prepared with tetraethoxysilane at an alkaline pH exhibit a better reaction rate than in the homogenous system under certain reaction conditions. To the best of our knowledge, this is the first study to present a one-step process that is simpler and faster than the methods reported in the literature for catalyst entrapment by the sol-gel process under standard conditions.
Collapse
Affiliation(s)
- Shiran Aharon
- Chemical Sciences Dept, Ariel University, Ariel, Israel
- Chemical Engineering Dept, Sami Shamoon College of Engineering, Beer Sheva, Ashdod, Israel
| | - Dan Meyerstein
- Chemical Sciences Dept, Ariel University, Ariel, Israel
- Chemistry Dept, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eyal Tzur
- Chemical Engineering Dept, Sami Shamoon College of Engineering, Beer Sheva, Ashdod, Israel.
| | - Dror Shamir
- Nuclear Research Centre Negev, Beer-Sheva, Israel
| | - Yael Albo
- Chemical Engineering Dept, Ariel University, Ariel, Israel
| | - Ariela Burg
- Chemical Engineering Dept, Sami Shamoon College of Engineering, Beer Sheva, Ashdod, Israel.
| |
Collapse
|
10
|
Patra SG, Das NK. Recent advancement on the mechanism of olefin metathesis by Grubbs catalysts: A computational perspective. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
11
|
Masoud SM, Vorobyeva DV, Petropavlovskikh DA, Bruneau C, Osipov SN. Fluorine-containing ruthenium-based olefin metathesis catalysts. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The review summarizes literature data on the methods for the introduction of fluorine atoms and fluoralkyl groups into different ligands to construct metathesis-active ruthenium carbene complexes. It also analyzes the influence of fluorinated ligands on the catalytic activity of the complexes. The choice, structure and positions of fluorinated substituents in NHC ligands are generally dictated by the desire to increase the electrophilicity of the ruthenium atom due to the electron-withdrawing effect of fluorine atoms and fluoroalkyl groups, resulting, as a rule, in an increase in the activity of the ruthenium complex. In catalysts with unsymmetrical fluorine-containing NHC ligands, there is a possibility of additional Ru–F coordination, making the complexes much more stable and, consequently, more active. The presence of fluorine in chelating alkylidene ligands provides an increase in the catalyst initiation rate due to a weakening of the ruthenium – heteroatom bond. Besides, the introduction of polyfluoroalkyl groups into ligands solves the problem of catalyst recovery using fluorous biphasic systems for reuse.
The bibliography includes 172 references.
Collapse
|
12
|
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
| |
Collapse
|
13
|
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.
Collapse
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
| |
Collapse
|
14
|
Eivgi O, Vaisman A, Lemcoff NG. Latent, Yet Highly Active Photoswitchable Olefin Metathesis Precatalysts Bearing Cyclic Alkyl Amino Carbene (CAAC)/Phosphite Ligands. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04909] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Or Eivgi
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Vaisman
- 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 Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| |
Collapse
|
15
|
Kumandin PA, Antonova AS, Alekseeva KA, Nikitina EV, Novikov RA, Vasilyev KA, Sinelshchikova AA, Grigoriev MS, Polyanskii KB, Zubkov FI. Influence of the N→Ru Coordinate Bond Length on the Activity of New Types of Hoveyda–Grubbs Olefin Metathesis Catalysts Containing a Six-Membered Chelate Ring Possessing a Ruthenium–Nitrogen Bond. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00647] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Pavel A. Kumandin
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Alexandra S. Antonova
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Kseniia A. Alekseeva
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Eugeniya V. Nikitina
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Roman A. Novikov
- N. D. Zelinsky Institute of Organic Chemistry of RAS, 47 Leninsky Prospect, Moscow 119991, Russian Federation
| | - Kirill A. Vasilyev
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Anna A. Sinelshchikova
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky Prospect, bld. 4, Moscow 119071, Russian Federation
| | - Mikhail S. Grigoriev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky Prospect, bld. 4, Moscow 119071, Russian Federation
| | - Kirill B. Polyanskii
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Fedor I. Zubkov
- Organic Chemistry Department, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| |
Collapse
|
16
|
Eivgi O, Phatake RS, Nechmad NB, Lemcoff NG. Light-Activated Olefin Metathesis: Catalyst Development, Synthesis, and Applications. Acc Chem Res 2020; 53:2456-2471. [PMID: 32990427 PMCID: PMC7584343 DOI: 10.1021/acs.accounts.0c00495] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Indexed: 12/30/2022]
Abstract
The most important means for tuning and improving a catalyst's properties is the delicate exchange of the ligand shell around the central metal atom. Perhaps for no other organometallic-catalyzed reaction is this statement more valid than for ruthenium-based olefin metathesis. Indeed, even the simple exchange of an oxygen atom for a sulfur atom in a chelated ruthenium benzylidene about a decade ago resulted in the development of extremely stable, photoactive catalysts. This Account presents our perspective on the development of dormant olefin metathesis catalysts that can be activated by external stimuli and, more specifically, the use of light as an attractive inducing agent.The insight gained from a deeper understanding of the properties of cis-dichlororuthenium benzylidenes opened the doorway for the systematic development of new and efficient light-activated olefin metathesis catalysts and catalytic chromatic-orthogonal synthetic schemes. Following this, ways to disrupt the ligand-to-metal bond to accelerate the isomerization process that produced the active precatalyst were actively pursued. Thus, we summarize herein the original thermal activation experiments and how they brought about the discoveries of photoactivation in the sulfur-chelated benzylidene family of catalysts. The specific wavelengths of light that were used to dissociate the sulfur-ruthenium bond allowed us to develop noncommutative catalytic chromatic-orthogonal processes and to combine other photochemical reactions with photoinduced olefin metathesis, including using external light-absorbing molecules as "sunscreens" to achieve novel selectivities. Alteration of the ligand sphere, including modifications of the N-heterocyclic carbene (NHC) ligand and the introduction of cyclic alkyl amino carbene (CAAC) ligands, produced more efficient light-induced activity and special chemical selectivity. The use of electron-rich sulfoxides and, more prominently, phosphites as the agents that induce latency widened the spectrum of light-induced olefin metathesis reactions even further by expanding the colors of light that may now be used to activate the catalysts, which can be used in applications such as stereolithography and 3D printing of tough metathesis-derived polymers.
Collapse
Affiliation(s)
- Or Eivgi
- Department
of Chemistry, Ben-Gurion University of the
Negev, Beer-Sheva 84105, Israel
| | - Ravindra S. Phatake
- Department
of Chemistry, Ben-Gurion University of the
Negev, Beer-Sheva 84105, Israel
| | - Noy B. Nechmad
- 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 Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| |
Collapse
|
17
|
Planer S, Małecki P, Trzaskowski B, Kajetanowicz A, Grela K. Sterically Tuned N-Heterocyclic Carbene Ligands for the Efficient Formation of Hindered Products in Ru-Catalyzed Olefin Metathesis. ACS Catal 2020; 10:11394-11404. [PMID: 33123411 PMCID: PMC7587146 DOI: 10.1021/acscatal.0c02770] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/03/2020] [Indexed: 11/28/2022]
Abstract
Formation of tetrasubstituted C-C double bonds via olefin metathesis is considered very challenging for classical Ru-based complexes. In the hope to improve this condition, three ruthenium olefin metathesis catalysts bearing sterically reduced N-heterocyclic carbene (NHC) ligands with xylyl "arms" were synthesized, characterized using both computational and experimental techniques, and tested in a number of challenging reactions. The catalysts are predicted to initiate much faster than the analogue with mesityl N-substituents. We also foreboded the rotation of xylyl side groups at ambient temperature and the existence of all four atropoisomers in the solution, which was in agreement with experimental data. These catalysts exhibited high activity at relatively low temperatures (45-60 °C) and at reduced catalyst loadings in various reactions of sterically hindered alkenes, including complex polyfunctional substrates of pharmaceutical interest, such as yangonin precursors, chrysantemic acid derivatives, analogues of cannabinoid agonists, α-terpineol, and finally a thermally unstable peroxide.
Collapse
Affiliation(s)
- Sebastian Planer
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Paweł Małecki
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Bartosz Trzaskowski
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
| | - Anna Kajetanowicz
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Karol Grela
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| |
Collapse
|
18
|
Abstract
This Account summarizes the historical development of latent sulfur-chelated ruthenium precatalysts from the Lemcoff group’s perspective. The most unique feature of this family of complexes is that they appear in the more stable cis-dichloro configuration, which is latent towards olefin metathesis reactions. Activation of the precatalyst, brought about by isomerization from the cis-dihalo to the trans-dihalo forms, can be achieved either by thermal or light stimuli. Modifications of the ligand sphere bestows unique properties upon the catalysts, which have been used in diverse applications, from 3D printing of metathesis polymers to orthogonally divergent synthetic pathways.1 Introduction2 Effect of Sulfur Substituents3 Effect of Benzylidene Ligands4 Effect of the NHC Ligands5 Effect of the Anionic Ligands6 Conclusions
Collapse
Affiliation(s)
- N. Gabriel Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev
- Ilse Katz Institute for Nanotechnology Science, Ben-Gurion University of the Negev
| | - Noy B. Nechmad
- Department of Chemistry, Ben-Gurion University of the Negev
| |
Collapse
|
19
|
Pieczykolan M, Czaban-Jóźwiak J, Malinska M, Woźniak K, Dorta R, Rybicka A, Kajetanowicz A, Grela K. The Influence of Various N-Heterocyclic Carbene Ligands on Activity of Nitro-Activated Olefin Metathesis Catalysts. Molecules 2020; 25:E2282. [PMID: 32408688 PMCID: PMC7287594 DOI: 10.3390/molecules25102282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/06/2020] [Accepted: 05/08/2020] [Indexed: 01/13/2023] Open
Abstract
A set of nitro-activated ruthenium-based Hoveyda-Grubbs type olefin metathesis catalysts bearing sterically modified N-hetero-cyclic carbene (NHC) ligands have been obtained, characterised and studied in a set of model metathesis reactions. It was found that catalysts bearing standard SIMes and SIPr ligands (4a and 4b) gave the best results in metathesis of substrates with more accessible C-C double bonds. At the same time, catalysts bearing engineered naphthyl-substituted NHC ligands (4d-e) exhibited high activity towards formation of tetrasubstituted C-C double bonds, the reaction which was traditionally Achilles' heel of the nitro-activated Hoveyda-Grubbs catalyst.
Collapse
Affiliation(s)
- Michał Pieczykolan
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland; (M.P.); (J.C.-J.)
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland; (M.M.); (K.W.); (A.R.)
| | - Justyna Czaban-Jóźwiak
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland; (M.P.); (J.C.-J.)
| | - Maura Malinska
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland; (M.M.); (K.W.); (A.R.)
| | - Krzysztof Woźniak
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland; (M.M.); (K.W.); (A.R.)
| | - Reto Dorta
- Department of Chemistry, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Perth 6009, Australia;
| | - Anna Rybicka
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland; (M.M.); (K.W.); (A.R.)
| | - Anna Kajetanowicz
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland; (M.M.); (K.W.); (A.R.)
| | - Karol Grela
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland; (M.P.); (J.C.-J.)
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland; (M.M.); (K.W.); (A.R.)
| |
Collapse
|
20
|
Nechmad NB, Phatake R, Ivry E, Poater A, Lemcoff NG. Unprecedented Selectivity of Ruthenium Iodide Benzylidenes in Olefin Metathesis Reactions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Noy B. Nechmad
- Department of ChemistryBen-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Ravindra Phatake
- Department of ChemistryBen-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Elisa Ivry
- Department of ChemistryBen-Gurion University of the Negev Beer-Sheva 84105 Israel
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de QuímicaUniversitat de Girona C/ Maria Aurèlia Capmany, 69 17003 Girona Catalonia Spain
| | - N. Gabriel Lemcoff
- Department of ChemistryBen-Gurion University of the Negev Beer-Sheva 84105 Israel
- Ilse Katz Institute for Nanotechnology ScienceBen-Gurion University of the Negev Beer-Sheva 84105 Israel
| |
Collapse
|
21
|
Nechmad NB, Phatake R, Ivry E, Poater A, Lemcoff NG. Unprecedented Selectivity of Ruthenium Iodide Benzylidenes in Olefin Metathesis Reactions. Angew Chem Int Ed Engl 2020; 59:3539-3543. [PMID: 31863712 DOI: 10.1002/anie.201914667] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 12/04/2019] [Indexed: 01/05/2023]
Abstract
The development of selective olefin metathesis catalysts is crucial to achieving new synthetic pathways. Herein, we show that cis-diiodo/sulfur-chelated ruthenium benzylidenes do not react with strained cycloalkenes and internal olefins, but can effectively catalyze metathesis reactions of terminal dienes. Surprisingly, internal olefins may partake in olefin metathesis reactions once the ruthenium methylidene intermediate has been generated. This unexpected behavior allows the facile formation of strained cis-cyclooctene by the RCM reaction of 1,9-undecadiene. Moreover, cis-1,4-polybutadiene may be transformed into small cyclic molecules, including its smallest precursor, 1,5-cyclooctadiene, by the use of this novel sequence. Norbornenes, including the reactive dicyclopentadiene (DCPD), remain unscathed even in the presence of terminal olefin substrates as they are too bulky to approach the diiodo ruthenium methylidene. The experimental results are accompanied by thorough DFT calculations.
Collapse
Affiliation(s)
- Noy B Nechmad
- 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
| | - Elisa Ivry
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, C/ Maria Aurèlia Capmany, 69, 17003, Girona, Catalonia, Spain
| | - 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
| |
Collapse
|
22
|
Eivgi O, Vaisman A, Nechmad NB, Baranov M, Lemcoff NG. Latent Ruthenium Benzylidene Phosphite Complexes for Visible-Light-Induced Olefin Metathesis. ACS Catal 2019. [DOI: 10.1021/acscatal.9b05079] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Or Eivgi
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Vaisman
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Noy B. Nechmad
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Mark Baranov
- 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 Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| |
Collapse
|
23
|
Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2018. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
24
|
Bidal YD, Urbina-Blanco CA, Poater A, Cordes DB, Slawin AMZ, Cavallo L, Cazin CSJ. Electronic effects in mixed N-heterocyclic carbene/phosphite indenylidene ruthenium metathesis catalysts. Dalton Trans 2019; 48:11326-11337. [PMID: 31273362 DOI: 10.1039/c9dt01811e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Five new complexes [RuCl2(SIMes)(Ind)(O-pXC5H4)] bearing different para-substituted triphenylphosphites (X = H, OCH3, CF3, Cl, SF5 and CN) were synthesised and used to study the effect of the electronic properties of the phosphite on olefin metathesis activity. Investigations of the physical properties of the new ligands and complexes were performed using physicochemical and DFT calculations. The catalytic activity of the complexes was benchmarked in challenging ring closing metathesis transformations featuring the formation of tetra-substituted double bonds. Complex [RuCl2(SIMes)(Ind)P(O-pCF3C5H4)3] (3c) exhibited a particularly high catalytic activity, superior to state-of-the-art catalysts, and was further tested on a wide range of substrates.
Collapse
Affiliation(s)
- Yannick D Bidal
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - César A Urbina-Blanco
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK and Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Gent, Belgium
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química, University of Girona, Girona 17003, Catalonia, Spain
| | - David B Cordes
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Alexandra M Z Slawin
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Catherine S J Cazin
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK and Centre for Sustainable Chemistry, Department of Chemistry, Ghent University, Krijgslaan 281 - S3, 9000 Gent, Belgium.
| |
Collapse
|
25
|
Małecki P, Gajda K, Gajda R, Woźniak K, Trzaskowski B, Kajetanowicz A, Grela K. Specialized Ruthenium Olefin Metathesis Catalysts Bearing Bulky Unsymmetrical NHC Ligands: Computations, Synthesis, and Application. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04783] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Paweł Małecki
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| | - Katarzyna Gajda
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| | - Roman Gajda
- Faculty of Chemistry, University of Warsaw, 02-089 Warszawa, Poland
| | | | | | - Anna Kajetanowicz
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| | - Karol Grela
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| |
Collapse
|
26
|
Ivry E, Nechmad NB, Baranov M, Goldberg I, Lemcoff NG. Influence of Anionic Ligand Exchange in Latent Sulfur-Chelated Ruthenium Precatalysts. Inorg Chem 2018; 57:15592-15599. [DOI: 10.1021/acs.inorgchem.8b02917] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Elisa Ivry
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Noy B. Nechmad
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Mark Baranov
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Israel Goldberg
- School of Chemistry, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Beer Sheva 8410501, Israel
| |
Collapse
|
27
|
Rozenberg I, Eivgi O, Frenklah A, Butilkov D, Kozuch S, Goldberg I, Lemcoff NG. Synthesis and Catalytic Properties of Sulfur-Chelated Ruthenium Benzylidenes Bearing a Cyclic (Alkyl)(amino)carbene Ligand. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02122] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Illya Rozenberg
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Or Eivgi
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Alexander Frenklah
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Danielle Butilkov
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Sebastian Kozuch
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Israel Goldberg
- School of Chemistry, Tel-Aviv University, Tel-Aviv 69978, 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
| |
Collapse
|
28
|
Eivgi O, Guidone S, Frenklah A, Kozuch S, Goldberg I, Lemcoff NG. Photoactivation of Ruthenium Phosphite Complexes for Olefin Metathesis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01637] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Or Eivgi
- Department of Chemistry, Ben Gurion University of the Negev, Beer-Sheva, Israel, 84105
| | - Stefano Guidone
- Department of Chemistry, Ben Gurion University of the Negev, Beer-Sheva, Israel, 84105
| | - Alexander Frenklah
- Department of Chemistry, Ben Gurion University of the Negev, Beer-Sheva, Israel, 84105
| | - Sebastian Kozuch
- Department of Chemistry, Ben Gurion University of the Negev, Beer-Sheva, Israel, 84105
| | - Israel Goldberg
- School of Chemistry, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - 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
| |
Collapse
|
29
|
Matsugi M, Kobayashi Y, Igarashi R, Ishikawa Y, Shimowaki K, Sugiyama Y, Shioiri T, Inukai S. Activation of Grubbs–Hoveyda Second-Generation Catalysts Employing Aromatic Ligands Bearing a Widespread Aryl Substituent. HETEROCYCLES 2018. [DOI: 10.3987/com-18-s(t)56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|