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Dinh HM, Gridneva T, Karimata A, Garcia-Roca A, Pruchyathamkorn J, Patil PH, Petrov A, Sarbajna A, Lapointe S, Khaskin E, Fayzullin RR, Khusnutdinova JR. Single and double deprotonation/dearomatization of the N,S-donor pyridinophane ligand in ruthenium complexes. Dalton Trans 2022; 51:14734-14746. [PMID: 36106442 DOI: 10.1039/d2dt02219b] [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
We report a series of ruthenium complexes with a tetradentate N,S-donor ligand, 2,11-dithia[3.3](2,6)pyridinophane (N2S2), that undergo single and double deprotonation in the presence of a base leading to the deprotonation of one or both pyridine rings. Both singly and doubly deprotonated complexes were structurally characterized by single-crystal X-ray diffraction. The NMR spectra are indicative of the dearomatization of one or both pyridine rings upon the deprotonation of the CH2-S arm, similar to the dearomatization of phosphine-containing pincer ligands. The deprotonated (N2S2)Ru complexes did not show appreciable catalytic or stoichiometric reactivity in transfer hydrogenation, hydrogenation and dehydrogenation of alcohols, and attempted activation of H2, CO2, and other substrates. Such a lack of reactivity is likely due to the low stability of the deprotonated species as evident from the structural characterization of one of the decomposition products in which shrinkage of the macrocyclic ring occurs via picolyl arm migration.
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Affiliation(s)
- Hoan Minh Dinh
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Tatiana Gridneva
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Ayumu Karimata
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Alèria Garcia-Roca
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Jiratheep Pruchyathamkorn
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Pradnya H Patil
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Andrey Petrov
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Abir Sarbajna
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Sébastien Lapointe
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Eugene Khaskin
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
| | - Robert R Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, Kazan 420088, Russian Federation
| | - Julia R Khusnutdinova
- Okinawa Institute of Science and Technology Graduate University, Coordination Chemistry and Catalysis Unit, 1919-1 Tancha, Onna-son, Okinawa, 904-0495, Japan.
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2
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Homogeneous Catalyzed Valorization of Furanics: A Sustainable Bridge to Fuels and Chemicals. Catalysts 2021. [DOI: 10.3390/catal11111371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The development of efficient biomass valorization is imperative for the future sustainable production of chemicals and fuels. Particularly, the last decade has witnessed the development of a plethora of effective and selective transformations of bio-based furanics using homogeneous organometallic catalysis under mild conditions. In this review, we describe some of the advances regarding the conversion of target furanics into value chemicals, monomers for high-performance polymers and materials, and pharmaceutical key intermediates using homogeneous catalysis. Finally, the incorporation of furanic skeletons into complex chemical architectures by multifunctionalization routes is also described.
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3
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Sudharsan M, Nethaji M, Bhuvanesh NS, Suresh D. Heteroleptic Palladium(II) Complexes of Thiazolinyl‐picolinamide Derived N
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N
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N Pincer Ligand: An Efficient Catalyst for Acylative Suzuki Coupling Reactions. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Murugesan Sudharsan
- Department of Chemistry School of Chemical and Biotechnology SASTRA Deemed University Thanjavur Tamil Nadu 613 401 India
| | - Munirathinam Nethaji
- Department of Inorganic and Physical Chemistry Indian Institute of Science Bangalore Karnataka 560 012 India
| | | | - Devarajan Suresh
- Department of Chemistry School of Chemical and Biotechnology SASTRA Deemed University Thanjavur Tamil Nadu 613 401 India
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4
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Lorraine SC, Lawrence MA, Celestine M, Holder AA. Electrochemical response of a Ru(II) benzothiazolyl-2-pyridinecarbothioamide pincer towards carbon dioxide and transfer hydrogenation of aryl ketones in air. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128829] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Abstract
Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.
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6
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Stadler BM, Brandt A, Kux A, Beck H, de Vries JG. Properties of Novel Polyesters Made from Renewable 1,4-Pentanediol. CHEMSUSCHEM 2020; 13:556-563. [PMID: 31794106 PMCID: PMC7027755 DOI: 10.1002/cssc.201902988] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/02/2019] [Indexed: 05/04/2023]
Abstract
Novel polyester polyols were prepared in high yields from biobased 1,4-pentanediol catalyzed by non-toxic phosphoric acid without using a solvent. These oligomers are terminated with hydroxyl groups and have low residual acid content, making them suitable for use in adhesives by polyurethane formation. The thermal behavior of the polyols was studied by differential scanning calorimetry, and tensile testing was performed on the derived polyurethanes. The results were compared with those of polyurethanes obtained with fossil-based 1,4-butanediol polyester polyols. Surprisingly, it was found that a crystalline polyester was obtained when aliphatic long-chain diacids (>C12 ) were used as the diacid building block. The low melting point of the C12 diacid-based material allows the development of biobased shape-memory polymers with very low switching temperatures (<0 °C), an effect that has not yet been reported for a material based on a simple binary polyester. This might find application as thermosensitive adhesives in the packaging of temperature-sensitive goods such as pharmaceuticals. Furthermore, these results indicate that, although 1,4-pentanediol cannot be regarded as a direct substitute for 1,4-butanediol, its novel structure expands the toolbox of the adhesives, coatings, or sealants formulators.
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Affiliation(s)
- Bernhard M. Stadler
- Leibniz Institut für Katalyse e. V. an derUniversität RostockAlbert-Einstein-Strasse 29a18055RostockGermany
| | - Adrian Brandt
- Henkel AG & Co. KGaAHenkel-Str. 6740589DüsseldorfGermany
| | - Alexander Kux
- Henkel AG & Co. KGaAHenkel-Str. 6740589DüsseldorfGermany
| | - Horst Beck
- Henkel AG & Co. KGaAHenkel-Str. 6740589DüsseldorfGermany
| | - Johannes G. de Vries
- Leibniz Institut für Katalyse e. V. an derUniversität RostockAlbert-Einstein-Strasse 29a18055RostockGermany
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7
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Dub PA, Batrice RJ, Gordon JC, Scott BL, Minko Y, Schmidt JG, Williams RF. Engineering Catalysts for Selective Ester Hydrogenation. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.9b00559] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pavel A. Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Rami J. Batrice
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - John C. Gordon
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Brian L. Scott
- Materials and Physics Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Yury Minko
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Jurgen G. Schmidt
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Robert F. Williams
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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8
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Sole R, Bortoluzzi M, Spannenberg A, Tin S, Beghetto V, de Vries JG. Synthesis, characterization and catalytic activity of novel ruthenium complexes bearing NNN click based ligands. Dalton Trans 2019; 48:13580-13588. [PMID: 31464307 DOI: 10.1039/c9dt01822k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Novel air stable ruthenium(ii) complexes bearing tridentate ligands bis((1-benzyl-1H-1,2,3-triazol-4-yl)methyl)amine (L1), 1-(1-benzyl-1H-1,2,3-triazol-4-yl)-N-(pyridin-2-ylmethyl)methanamine (L2) or 2-(4-phenyl-1H-1,2,3-triazol-1-yl)-N-(pyridin-2-ylmethyl)ethan-1-amine (L3) were synthesised. The nitrogen based ligands were easily prepared by virtue of click chemistry using cheap and commercially available reagents. The ruthenium complexes were obtained by heating the Ru(PPh3)3Cl2 precursor and the tridentate NNN ligand in toluene under reflux for 2 hours, achieving yields of 82-87%. These complexes were fully characterized by means of NMR, FT-IR and high resolution ESI spectroscopy. The crystal structure of one of the complexes was determined. These complexes showed excellent activity and selectivity in the hydrogenation of ketones and aldehydes. DFT calculations show that complex 3 may react through an outer-sphere catalytic cycle rather than via an inner-sphere mechanism.
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Affiliation(s)
- Roberto Sole
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca'Foscari Venezia, Via Torino 155, 30170, Venezia Mestre, Italy.
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9
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Stadler BM, Hinze S, Tin S, de Vries JG. Hydrogenation of Polyesters to Polyether Polyols. CHEMSUSCHEM 2019; 12:4082-4087. [PMID: 31332956 PMCID: PMC6771520 DOI: 10.1002/cssc.201901210] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/22/2019] [Indexed: 05/21/2023]
Abstract
The amount of plastic waste is continuously increasing. Besides conventional recycling, one solution to deal with this problem could be to use this waste as a resource for novel materials. In this study, polyesters are hydrogenated to give polyether polyols by using in situ-generated Ru-Triphos catalysts in combination with Lewis acids. The choice of Lewis acid and its concentration relative to the ruthenium catalyst are found to determine the selectivity of the reaction. Monitoring of the molecular weight during the reaction confirms a sequential mechanism in which the diols that are formed by hydrogenation are etherified to the polyethers. To probe the applicability of this tandem hydrogenation etherification approach, a range of polyester substrates is investigated. The oligoether products that form in these reactions have the chain lengths that are appropriate for application in the adhesives and coatings industries. This strategy makes polyether polyols accessible that are otherwise difficult to obtain from conventional fossil-based feedstocks.
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Affiliation(s)
- Bernhard M. Stadler
- Leibniz Institut für Katalyse e. V. an derUniversität RostockAlbert-Einstein-Strasse 29a18055RostockGermany
| | - Sandra Hinze
- Leibniz Institut für Katalyse e. V. an derUniversität RostockAlbert-Einstein-Strasse 29a18055RostockGermany
| | - Sergey Tin
- Leibniz Institut für Katalyse e. V. an derUniversität RostockAlbert-Einstein-Strasse 29a18055RostockGermany
| | - Johannes G. de Vries
- Leibniz Institut für Katalyse e. V. an derUniversität RostockAlbert-Einstein-Strasse 29a18055RostockGermany
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10
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Xu S, Kalapugama S, Rasu L, Bergens SH. Preparation and Study of Reusable Polymerized Catalysts for Ester Hydrogenation. ACS OMEGA 2019; 4:12212-12221. [PMID: 31460336 PMCID: PMC6682151 DOI: 10.1021/acsomega.9b01682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 07/02/2019] [Indexed: 05/14/2023]
Abstract
A cross-linked catalyst organic framework was prepared by an alternating ring-opening olefin metathesis polymerization between dichloro{N,N'-bis({(2-diphenylphosphino)phenyl}methylidene)bicyclo[2.2.1]-hept-5-ene-2,3-diamine}ruthenium, 1,2-N-di(cis-5-norbornene-2,3-endo-dicarboximido)-ethane, and cis-cyclooctene catalyzed by RuCl2(=CHPh)(PCy3)2 in the presence of a BaSO4 support. The heterogenized catalyst hydrogenated methyl benzoate at a similar rate to the homogeneous catalyst (0.0025 mol % catalyst, 10 mol % KO t Bu, 80 °C, 50 atm, tetrahydrofuran, 21 h, ∼15 000 turnovers during the first 1 h). The catalyst was used five times for a total of 121 680 turnovers. A study on the reusability of this catalyst showed that ester hydrogenations with bifunctional catalysts slow as the reaction proceeds. This inhibition is removed by isolating and reusing the catalyst, suggesting that future catalyst design should emphasize avoiding product inhibition.
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Affiliation(s)
- Shuai Xu
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Suneth Kalapugama
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Loorthuraja Rasu
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Steven H. Bergens
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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11
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Stadler BM, Wulf C, Werner T, Tin S, de Vries JG. Catalytic Approaches to Monomers for Polymers Based on Renewables. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01665] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bernhard M. Stadler
- Leibniz Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Christoph Wulf
- Leibniz Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Thomas Werner
- Leibniz Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Sergey Tin
- Leibniz Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Johannes G. de Vries
- Leibniz Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
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12
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Das S, Subramaniyan V, Mani G. Nickel(II) and Palladium(II) Complexes Bearing an Unsymmetrical Pyrrole-Based PNN Pincer and Their Norbornene Polymerization Behaviors versus the Symmetrical NNN and PNP Pincers. Inorg Chem 2019; 58:3444-3456. [PMID: 30767515 DOI: 10.1021/acs.inorgchem.8b03562] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Unsymmetrical pincers have been shown to be better than the corresponding symmetrical pincers in several catalysis reactions. A new unsymmetrical PNN propincer, 2-(3,5-dimethylpyrazolylmethyl)-5-(diphenylphosphinomethyl)pyrrole (1), was synthesized from pyrrole through Mannich bases in a good yield. In addition, the new byproduct 2-(3,5-dimethylpyrazolylmethyl)-5-(dimethylaminomethyl)- N-(hydroxymethyl)pyrrole was also isolated. The reaction of 1 with [PdCl2(PhCN)2] and Et3N in toluene yielded [PdCl{C4H2N-2-(CH2Me2pz)-5-(CH2PPh2)-κ3 P,N,N}] (2). The analogous reaction between 1 and [NiCl2(DME)] or NiX2 (X = Br, I) in the presence of NEt3 in acetonitrile afforded [NiX{C4H2N-2-(CH2Me2pz)-5-(CH2PPh2)-κ3 P,N,N}] (3; X = Cl, Br, I). All complexes were structurally characterized. The norbornene polymerization behaviors of the unsymmetrical pincer complexes 2 and 3 in the presence of MMAO or EtAlCl2 were compared with those of the symmetrical pincer complexes chloro[2,5-bis(3,5-dimethylpyrazolylmethyl)pyrrolido]palladium(II) (NNN), chloro[2,5-bis(diphenylphosphinomethyl)pyrrolido]palladium(II), and chloro[2,5-bis(diphenylphosphinomethyl)pyrrolido]nickel(II) (PNP) at different temperatures. The PNN and NNN complexes exhibited far greater activity on the order of 107 g of PNB/mol/h, with quantitative yields in some cases, in comparison to the PNP pincer palladium and nickel complexes. This trend was also supported by the iPr group substituted PNP nickel and palladium pincer complexes. These polymerization behaviors are explained using steric crowding around the metal atom with the support of NMR studies and suggested that the activity increases as the Npyrazole donor increases. Polymers were characterized by 1H NMR, IR, TGA, and powder XRD methods.
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Affiliation(s)
- Sanghamitra Das
- Department of Chemistry , Indian Institute of Technology Kharagpur , Kharagpur , West Bengal , India 721 302
| | - Vasudevan Subramaniyan
- Department of Chemistry , Indian Institute of Technology Kharagpur , Kharagpur , West Bengal , India 721 302
| | - Ganesan Mani
- Department of Chemistry , Indian Institute of Technology Kharagpur , Kharagpur , West Bengal , India 721 302
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13
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Farrar‐Tobar RA, Wozniak B, Savini A, Hinze S, Tin S, de Vries JG. Base‐Free Iron Catalyzed Transfer Hydrogenation of Esters Using EtOH as Hydrogen Source. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ronald A. Farrar‐Tobar
- Leibniz Institut für Katalyse e. V. an derUniversität Rostock Albert-Einstein-Straße 29a 18055 Rostock Germany
| | - Bartosz Wozniak
- Leibniz Institut für Katalyse e. V. an derUniversität Rostock Albert-Einstein-Straße 29a 18055 Rostock Germany
| | - Arianna Savini
- Leibniz Institut für Katalyse e. V. an derUniversität Rostock Albert-Einstein-Straße 29a 18055 Rostock Germany
| | - Sandra Hinze
- Leibniz Institut für Katalyse e. V. an derUniversität Rostock Albert-Einstein-Straße 29a 18055 Rostock Germany
| | - Sergey Tin
- Leibniz Institut für Katalyse e. V. an derUniversität Rostock Albert-Einstein-Straße 29a 18055 Rostock Germany
| | - Johannes G. de Vries
- Leibniz Institut für Katalyse e. V. an derUniversität Rostock Albert-Einstein-Straße 29a 18055 Rostock Germany
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14
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Biswas N, Das K, Sardar B, Srimani D. Acceptorless dehydrogenative construction of CN and CC bonds through catalytic aza-Wittig and Wittig reactions in the presence of an air-stable ruthenium pincer complex. Dalton Trans 2019; 48:6501-6512. [DOI: 10.1039/c8dt04725a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acceptorless dehydrogenative construction of CN and CC bonds catalysed by air-stable ruthenium complexes.
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Affiliation(s)
- Nandita Biswas
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Kalicharan Das
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Bitan Sardar
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Dipankar Srimani
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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15
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Puylaert P, Dell'Acqua A, El Ouahabi F, Spannenberg A, Roisnel T, Lefort L, Hinze S, Tin S, de Vries JG. Phosphine-free cobalt catalyst precursors for the selective hydrogenation of olefins. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02218f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A phosphine-free Co(NNS)Cl2 complex was used as a catalyst precursor for the highly selective hydrogenation of alkenes in the presence of other functional groups such as ketones.
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Affiliation(s)
- Pim Puylaert
- Leibniz Institut für Katalyse e.V. an der Universität Rostock
- 18055 Rostock
- Germany
| | - Andrea Dell'Acqua
- Leibniz Institut für Katalyse e.V. an der Universität Rostock
- 18055 Rostock
- Germany
| | - Fatima El Ouahabi
- Leibniz Institut für Katalyse e.V. an der Universität Rostock
- 18055 Rostock
- Germany
| | - Anke Spannenberg
- Leibniz Institut für Katalyse e.V. an der Universität Rostock
- 18055 Rostock
- Germany
| | - Thierry Roisnel
- Université de Rennes 1
- UMR “Sciences Chimiques de Rennes”
- UR1-CNRS 6226
- Campus de Beaulieu
- 35042 Rennes Cedex
| | | | - Sandra Hinze
- Leibniz Institut für Katalyse e.V. an der Universität Rostock
- 18055 Rostock
- Germany
| | - Sergey Tin
- Leibniz Institut für Katalyse e.V. an der Universität Rostock
- 18055 Rostock
- Germany
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16
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Sarbajna A, Patil PH, Dinh MH, Gladkovskaya O, Fayzullin RR, Lapointe S, Khaskin E, Khusnutdinova JR. Facile and reversible double dearomatization of pyridines in non-phosphine MnI complexes with N,S-donor pyridinophane ligand. Chem Commun (Camb) 2019; 55:3282-3285. [DOI: 10.1039/c9cc00424f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single and double dearomatization of pyridine rings was observed in MnI complexes with an N2S2 pyridinophane ligand via deprotonation of one or two CH2 arms, respectively.
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Affiliation(s)
- Abir Sarbajna
- Coordination Chemistry and Catalysis Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495
- Japan
| | - Pradnya H. Patil
- Coordination Chemistry and Catalysis Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495
- Japan
| | - Minh Hoan Dinh
- Coordination Chemistry and Catalysis Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495
- Japan
| | - Olga Gladkovskaya
- Coordination Chemistry and Catalysis Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495
- Japan
| | - Robert R. Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center
- Russian Academy of Sciences
- Kazan 420088
- Russian Federation
| | - Sébastien Lapointe
- Coordination Chemistry and Catalysis Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495
- Japan
| | - Eugene Khaskin
- Coordination Chemistry and Catalysis Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495
- Japan
| | - Julia R. Khusnutdinova
- Coordination Chemistry and Catalysis Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495
- Japan
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17
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Major MM, Rövid G, Balogh S, Bényei A, Lendvay G, Frigyes D, Bakos J, Farkas G. Double stereoselective coordination of chiral N,S ligands: Synthesis, coordination chemistry and utilization in Pd-catalyzed allylic alkylation. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Máté Miklós Major
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Gergő Rövid
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Szabolcs Balogh
- NMR Laboratory; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Attila Bényei
- Department of Pharmaceutical Chemistry; University of Debrecen; Egyetem tér 1 H-4032 Debrecen Hungary
| | - György Lendvay
- Institute of Materials and Environmental Chemistry; Hungarian Academy of Sciences; Magyar tudósok krt. 2 H-1117 Budapest Hungary
- Department of General and Inorganic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Dávid Frigyes
- Laboratory of Drug Substance Analytical Development 1; Egis Pharmaceuticals PLC; H-1106 Budapest Keresztúri út 30-38 Hungary
| | - József Bakos
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
| | - Gergely Farkas
- Department of Organic Chemistry; University of Pannonia; Egyetem u. 10 H-8200 Veszprém Hungary
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18
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Farrar-Tobar RA, Wozniak B, Savini A, Hinze S, Tin S, de Vries JG. Base-Free Iron Catalyzed Transfer Hydrogenation of Esters Using EtOH as Hydrogen Source. Angew Chem Int Ed Engl 2018; 58:1129-1133. [PMID: 30506963 DOI: 10.1002/anie.201810605] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/13/2018] [Indexed: 12/12/2022]
Abstract
Herein, we report on the use of the iron pincer complex Iron-MACHO-BH, in the base-free transfer hydrogenation of esters with EtOH as a hydrogen source. More than 20 substrates including aromatic and aliphatic esters and lactones were reduced affording the desired primary alcohols and diols with moderate to excellent isolated yields. It is also possible to reduce polyesters to the diols with this method, enabling a novel way of plastic recycling. Reduction of the renewable substrate methyl levulinate proceeds to form 1,4-pentanediol directly. The yields are largely governed by the equilibrium between the alcohol and the ethyl ester.
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Affiliation(s)
- Ronald A Farrar-Tobar
- Leibniz Institut für Katalyse e. V. an der, Universität Rostock, Albert-Einstein-Straße 29a, 18055, Rostock, Germany
| | - Bartosz Wozniak
- Leibniz Institut für Katalyse e. V. an der, Universität Rostock, Albert-Einstein-Straße 29a, 18055, Rostock, Germany
| | - Arianna Savini
- Leibniz Institut für Katalyse e. V. an der, Universität Rostock, Albert-Einstein-Straße 29a, 18055, Rostock, Germany
| | - Sandra Hinze
- Leibniz Institut für Katalyse e. V. an der, Universität Rostock, Albert-Einstein-Straße 29a, 18055, Rostock, Germany
| | - Sergey Tin
- Leibniz Institut für Katalyse e. V. an der, Universität Rostock, Albert-Einstein-Straße 29a, 18055, Rostock, Germany
| | - Johannes G de Vries
- Leibniz Institut für Katalyse e. V. an der, Universität Rostock, Albert-Einstein-Straße 29a, 18055, Rostock, Germany
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19
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Le L, Liu J, He T, Kim D, Lindley EJ, Cervarich TN, Malek JC, Pham J, Buck MR, Chianese AR. Structure–Function Relationship in Ester Hydrogenation Catalyzed by Ruthenium CNN-Pincer Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00470] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Linh Le
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Jiachen Liu
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Tianyi He
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Daniel Kim
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Eric J. Lindley
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Tia N. Cervarich
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Jack C. Malek
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - John Pham
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Matthew R. Buck
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
| | - Anthony R. Chianese
- Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York 13346, United States
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20
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Schörgenhumer J, Zimmermann A, Waser M. SNS-Ligands for Ru-Catalyzed Homogeneous Hydrogenation and Dehydrogenation Reactions. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00142] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Johannes Schörgenhumer
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria
| | - Axel Zimmermann
- Patheon Austria, part of Thermo Fisher Scientific, St. Peterstr. 25, 4020 Linz, Austria
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria
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