1
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Brodie CN, Goodfellow AS, Andrews MJ, Owen AE, Bühl M, Kumar A. Direct synthesis of partially ethoxylated branched polyethylenimine from ethanolamine. Nat Commun 2024; 15:6253. [PMID: 39048574 PMCID: PMC11269587 DOI: 10.1038/s41467-024-50403-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 07/09/2024] [Indexed: 07/27/2024] Open
Abstract
We report here a method to make a branched and partially ethoxylated polyethyleneimine derivative directly from ethanolamine. The polymerization reaction is catalysed by a pincer complex of Earth-abundant metal, manganese, and produces water as the only byproduct. Industrial processes to produce polyethyleneimines involve the transformation of ethanolamine to a highly toxic chemical, aziridine, by an energy-intensive/waste-generating process followed by the ring-opening polymerization of aziridine. The reported method bypasses the need to produce a highly toxic intermediate and presents advantages over the current state-of-the-art. We propose that the polymerization process follows a hydrogen borrowing pathway that involves (a) dehydrogenation of ethanolamine to form 2-aminoacetaldehyde, (b) dehydrative coupling of 2-aminoacetaldehyde with ethanolamine to form an imine derivative, and (c) subsequent hydrogenation of imine derivative to form alkylated amines.
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Affiliation(s)
- Claire N Brodie
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK
| | - Alister S Goodfellow
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK
| | - Matthew J Andrews
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK
| | - Aniekan E Owen
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK
| | - Michael Bühl
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
| | - Amit Kumar
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
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2
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Kulyabin P, Magdysyuk OV, Naden AB, Dawson DM, Pancholi K, Walker M, Vassalli M, Kumar A. Manganese-Catalyzed Synthesis of Polyketones Using Hydrogen-Borrowing Approach. ACS Catal 2024; 14:10624-10634. [PMID: 39050896 PMCID: PMC11264210 DOI: 10.1021/acscatal.4c03019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 07/27/2024]
Abstract
We report here a method of making polyketones from the coupling of diketones and diols using a manganese pincer complex. The methodology allows us to access various polyketones (polyarylalkylketone) containing aryl, alkyl, and ether functionalities, bridging the gap between the two classes of commercially available polyketones: aliphatic polyketones and polyaryletherketones. Using this methodology, 12 polyketones have been synthesized and characterized using various analytical techniques to understand their chemical, physical, morphological, and mechanical properties. Based on previous reports and our studies, we suggest that the polymerization occurs via a hydrogen-borrowing mechanism that involves the dehydrogenation of diols to dialdehyde followed by aldol condensation of dialdehyde with diketones to form chalcone derivatives and their subsequent hydrogenation to form polyarylalkylketones.
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Affiliation(s)
- Pavel
S. Kulyabin
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K.
| | - Oxana V. Magdysyuk
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K.
| | - Aaron B. Naden
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K.
| | - Daniel M. Dawson
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K.
| | - Ketan Pancholi
- The
Sir Ian Wood Building, Robert Gordon University, Garthdee Rd, Garthdee, Aberdeen AB10 7GE, U.K.
| | - Matthew Walker
- Centre
for the Cellular Microenvironment, Advanced Research Centre, University of Glasgow, Glasgow G116EW, U.K.
| | - Massimo Vassalli
- James
Watt School of Engineering, University of
Glasgow, Glasgow G12 8QQ, U.K.
| | - Amit Kumar
- EaStCHEM,
School of Chemistry, University of St Andrews, North Haugh, St Andrews KY16 9ST, U.K.
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3
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Johnson ML, Fine RL, Stankowski DS, Koch CA, Limoges KA, Robertson NJ. Highly selective pressure-dependent (transfer) hydrogenative depolymerization of polybutylene succinate. Chem Commun (Camb) 2024; 60:702-705. [PMID: 38105706 DOI: 10.1039/d3cc05239g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Ru-MACHO®-BH is an effective catalyst for controlled depolymerization of polybutylene succinate. Under low pressure hydrogen the catalyst produces gamma-butyrolactone via a novel transfer hydrogenation wherein dehydrogenation and hydrogenation deconstruct the polymer chain. Simply increasing the hydrogen pressure selectively generates 1,4-butanediol.
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Affiliation(s)
- Mary L Johnson
- Northland College, 1411 Ellis Ave., Ashland, Wisconsin, 54806, USA.
| | - Rachel L Fine
- Northland College, 1411 Ellis Ave., Ashland, Wisconsin, 54806, USA.
| | | | - Casey A Koch
- Northland College, 1411 Ellis Ave., Ashland, Wisconsin, 54806, USA.
| | - Kylie A Limoges
- Northland College, 1411 Ellis Ave., Ashland, Wisconsin, 54806, USA.
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4
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Zhao Y, Rettner EM, Harry KL, Hu Z, Miscall J, Rorrer NA, Miyake GM. Chemically recyclable polyolefin-like multiblock polymers. Science 2023; 382:310-314. [PMID: 37856598 DOI: 10.1126/science.adh3353] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 09/06/2023] [Indexed: 10/21/2023]
Abstract
Polyolefins are the most important and largest volume plastics produced. Unfortunately, the enormous use of plastics and lack of effective disposal or recycling options have created a plastic waste catastrophe. In this work, we report an approach to create chemically recyclable polyolefin-like materials with diverse mechanical properties through the construction of multiblock polymers from hard and soft oligomeric building blocks synthesized with ruthenium-mediated ring-opening metathesis polymerization of cyclooctenes. The multiblock polymers exhibit broad mechanical properties, spanning elastomers to plastomers to thermoplastics, while integrating a high melting transition temperature (Tm) and low glass transition temperature (Tg), making them suitable for use across diverse applications (Tm as high as 128°C and Tg as low as -60°C). After use, the different plastics can be combined and efficiently deconstructed back to the fundamental hard and soft building blocks for separation and repolymerization to realize a closed-loop recycling process.
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Affiliation(s)
- Yucheng Zhao
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Emma M Rettner
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO 80523, USA
| | - Katherine L Harry
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Zhitao Hu
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Joel Miscall
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA
- BOTTLE Consortium, Golden, CO 80401, USA
| | - Nicholas A Rorrer
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA
- BOTTLE Consortium, Golden, CO 80401, USA
| | - Garret M Miyake
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO 80523, USA
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5
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Tang S, Li J, Wang Z, Zhang L. Design and Synthesis of Novel Bio-Based Polyester Elastomer with Tunable Oil Resistance. Macromol Rapid Commun 2023; 44:e2300166. [PMID: 37357821 DOI: 10.1002/marc.202300166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/29/2023] [Indexed: 06/27/2023]
Abstract
Polarity determines the oil resistance property of elastomers. In this work, three bio-based polyester elastomers (BPEs) with different mass fraction of ester groups (E) are designed and synthesized aiming to study the relationship of E and oil resistance performance, and to obtain bio-based elastomer materials with tunable oil resistance. Through adjusting the chain length of monomers, E of poly(ethylene glycol/1,3-propanediol/succinate/adipate/itaconate)(PEPSAI), poly(1,3-propanediol/1,4-butanediol/succinate/adipate/itaconate)(PPBSAI), and poly(1,3-propanediol/1,4-butanediol/sebacate/adipate/itaconate)(PPBSeAI) are ≈50.39%, 48.55%, and 39.68%, respectively. Results show that E has great influence on the oil resistance of BPEs. After being immersed in IRM-903# oil for 72 h at room temperature, the changes in mass and volume of BPEs decrease along with the increasing mass fraction of ester groups, indicating improved oil resistance performance. PEPSAI with the highest mass fraction of ester groups presents better oil resistance and lower Tg (better low-temperature resistance) than one of the most used commercial oil-resistant rubber nitrile rubber (N230S). Thus, this work provides a promising strategy to obtain bio-based oil resistant elastomers with practical value.
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Affiliation(s)
- Shuai Tang
- Engineering Research Center of Elastomer, Materials Energy Conservation and Resources, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China
- Center of Advanced Elastomer Materials, College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jiao Li
- Engineering Research Center of Elastomer, Materials Energy Conservation and Resources, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China
- Center of Advanced Elastomer Materials, College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Zhao Wang
- Engineering Research Center of Elastomer, Materials Energy Conservation and Resources, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China
- Center of Advanced Elastomer Materials, College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Liqun Zhang
- Engineering Research Center of Elastomer, Materials Energy Conservation and Resources, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China
- South China University of Technology, Institute of Emergent Elastomers, Guangzhou, 510006, China
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6
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Xu WM, Yu YD, Ma MX, Xu HD, Wang RQ, Pan YP, Wu KQ, Yang WR, Yao CG. Green Synthesis of Chemically Recyclable Polyesters via Dehydrogenative Copolymerization of Diols. CHINESE JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1007/s10118-023-2903-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Rong H, Zhang Y, Ai X, Li W, Cao F, Li L. Theoretical Study on the Hydrogenolysis of Polyurethanes to Improve the Catalytic Activities. Inorg Chem 2022; 61:14662-14672. [PMID: 36062933 DOI: 10.1021/acs.inorgchem.2c02027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The metal-catalyzed hydrogenolysis of polymers is important in waste recycling; however, it is limited by the harsh reaction conditions and the low activities of catalysts, especially for earth-abundant metal-based catalysts. Herein, we perform a comprehensive study on the hydrogenolysis of polyurethane model catalyzed by Fe-, Mn-, Ru-, and Ir-iPrMACHO pincer complexes and propose a cascade mechanism comprising two-level hydrogenolysis and the hydrogenation of formaldehyde. In addition, the substrates and ligands are modulated to improve the activities of chemical recycling to monomer. It is found that the pincer ligands could dissociate from the metal centers at high reaction temperatures and further result in the deactivation of catalysts. The rigid Fe and Mn catalysts with tetradentate cyclic ligands are designed following the guidance, and the computations suggest that those designed catalysts could have high stabilities and activities.
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Affiliation(s)
- Hongli Rong
- College of Pharmacy, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Yahui Zhang
- College of Pharmacy, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Xinliang Ai
- College of Pharmacy, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Wan Li
- College of Pharmacy, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Fei Cao
- College of Pharmacy, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Longfei Li
- College of Pharmacy, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
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8
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Onoda M, Fujita K. Dehydrogenative Esterification and Dehydrative Etherification by Coupling of Primary Alcohols Based on Catalytic Function Switching of an Iridium Complex. ChemistrySelect 2022. [DOI: 10.1002/slct.202201135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mitsuki Onoda
- Graduate School of Human and Environmental Studies Kyoto University Sakyo-ku Kyoto 606-8501 Japan
| | - Ken‐ichi Fujita
- Graduate School of Human and Environmental Studies Kyoto University Sakyo-ku Kyoto 606-8501 Japan
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9
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Owen AE, Preiss A, McLuskie A, Gao C, Peters G, Bühl M, Kumar A. Manganese-Catalyzed Dehydrogenative Synthesis of Urea Derivatives and Polyureas. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Annika Preiss
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Angus McLuskie
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Chang Gao
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Gavin Peters
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Michael Bühl
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
| | - Amit Kumar
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY169ST, U.K
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10
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Shi QX, Li Q, Xiao H, Sun XL, Bao H, Wan WM. Room-temperature Barbier single-atom polymerization induced emission as a versatile approach for the utilization of monofunctional carboxylic acid resources. Polym Chem 2022. [DOI: 10.1039/d1py01493e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Barbier polymerization is realized at room-temperature with single-atom polymerization and polymerization-induced emission characteristics, which exhibits capability on sensitive explosive detection and artificial light-harvesting system fabrication.
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Affiliation(s)
- Quan-Xi Shi
- College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 West Yangqiao Road, Fuzhou 350002, P. R. of China
| | - Qian Li
- College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 West Yangqiao Road, Fuzhou 350002, P. R. of China
| | - Hang Xiao
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 West Yangqiao Road, Fuzhou 350002, P. R. of China
- College of Environmental Science and Engineering, Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Xiao-Li Sun
- College of Environmental Science and Engineering, Engineering Research Center of Polymer Green Recycling of Ministry of Education, Fujian Key Laboratory of Pollution Control & Resource Reuse, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Hongli Bao
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 West Yangqiao Road, Fuzhou 350002, P. R. of China
| | - Wen-Ming Wan
- College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
- State Key Laboratory of Structural Chemistry, Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 West Yangqiao Road, Fuzhou 350002, P. R. of China
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11
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Langsted CR, Paulson SW, Bomann BH, Suhail S, Aguirre JA, Saumer EJ, Baclasky AR, Salmon KH, Law AC, Farmer RJ, Furchtenicht CJ, Stankowski DS, Johnson ML, Corcoran LG, Dolan CC, Carney MJ, Robertson NJ. Isocyanate‐free
synthesis of ureas and polyureas via ruthenium catalyzed dehydrogenation of amines and formamides. J Appl Polym Sci 2021. [DOI: 10.1002/app.52088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
| | | | - Blake H. Bomann
- Department of Chemistry and Biochemistry University of Wisconsin‐Eau Claire Eau Claire Wisconsin USA
| | - Shanzay Suhail
- Department of Chemistry and Biochemistry University of Wisconsin‐Eau Claire Eau Claire Wisconsin USA
| | | | | | | | | | | | | | | | | | | | | | - Connor C. Dolan
- Department of Chemistry and Biochemistry University of Wisconsin‐Eau Claire Eau Claire Wisconsin USA
| | - Michael J. Carney
- Department of Chemistry and Biochemistry University of Wisconsin‐Eau Claire Eau Claire Wisconsin USA
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12
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Alberti C, Enthaler S. Ruthenium‐catalyzed Chemical Recycling of Poly(ϵ‐caprolactone) via Hydrogenative Depolymerization and Dehydrogenative Polymerization. ChemistrySelect 2021. [DOI: 10.1002/slct.202103366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Christoph Alberti
- Universität Hamburg Institut für Anorganische und Angewandte Chemie Martin-Luther-King-Platz 6 D-20146 Hamburg Germany
| | - Stephan Enthaler
- Universität Hamburg Institut für Anorganische und Angewandte Chemie Martin-Luther-King-Platz 6 D-20146 Hamburg Germany
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13
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Cheung E, Alberti C, Bycinskij S, Enthaler S. Zinc‐Catalyzed Chemical Recycling of Poly(ϵ‐caprolactone) Applying Transesterification Reactions. ChemistrySelect 2021. [DOI: 10.1002/slct.202004294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Even Cheung
- Universität Hamburg Institut für Anorganische und Angewandte Chemie Martin-Luther-King-Platz 6 D–20146 Hamburg Germany
| | - Christoph Alberti
- Universität Hamburg Institut für Anorganische und Angewandte Chemie Martin-Luther-King-Platz 6 D–20146 Hamburg Germany
| | - Sergej Bycinskij
- Universität Hamburg Institut für Anorganische und Angewandte Chemie Martin-Luther-King-Platz 6 D–20146 Hamburg Germany
| | - Stephan Enthaler
- Universität Hamburg Institut für Anorganische und Angewandte Chemie Martin-Luther-King-Platz 6 D–20146 Hamburg Germany
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14
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Kumar A, Armstrong D, Peters G, Nagala M, Shirran S. Direct synthesis of polyureas from the dehydrogenative coupling of diamines and methanol. Chem Commun (Camb) 2021; 57:6153-6156. [PMID: 34042925 DOI: 10.1039/d1cc01121a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report here the first example of the direct synthesis of polyureas from the dehydrogenative coupling of diamines and methanol using a ruthenium pincer catalyst. The present methodology replaces the use of toxic diisocyanates, conventionally used for the production of polyureas, with methanol, which is renewable, less toxic, and cheaper, making the overall process safer and more sustainable. Further advantages of the current method have been demonstrated by the synthesis of a renewable, a chiral, and the first 13C-labelled polyurea.
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Affiliation(s)
- Amit Kumar
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK.
| | - Daniel Armstrong
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK.
| | - Gavin Peters
- School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK.
| | - Manjula Nagala
- BSRC Mass Spectrometry and Proteomics Facility, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK
| | - Sally Shirran
- BSRC Mass Spectrometry and Proteomics Facility, University of St. Andrews, North Haugh, St. Andrews, KY169ST, UK
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15
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Kumar A, Gao C. Homogeneous (De)hydrogenative Catalysis for Circular Chemistry – Using Waste as a Resource. ChemCatChem 2020. [DOI: 10.1002/cctc.202001404] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Amit Kumar
- School of Chemistry University of St. Andrews North Haugh St. Andrews KY169ST UK
| | - Chang Gao
- School of Chemistry University of St. Andrews North Haugh St. Andrews KY169ST UK
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16
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Recent Advances in Homogeneous Catalysis via Metal–Ligand Cooperation Involving Aromatization and Dearomatization. Catalysts 2020. [DOI: 10.3390/catal10060635] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recently, an increasing number of metal complex catalysts have been developed to achieve the activation or transformation of substrates based on cooperation between the metal atom and its ligands. In such “cooperative catalysis,” the ligand not only is bound to the metal, where it exerts steric and electronic effects, but also functionally varies its structure during the elementary processes of the catalytic reaction. In this review article, we focus on metal–ligand cooperation involving aromatization and dearomatization of the ligand, thus introducing the newest developments and examples of homogeneous catalytic reactions.
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17
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Sahoo AR, Lalitha G, Murugesh V, Bruneau C, Sharma GVM, Suresh S, Achard M. Direct Access to (±)‐10‐Desbromoarborescidine A from Tryptamine and Pentane‐1,5‐diol. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Apurba Ranjan Sahoo
- Univ RennesISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Gummidi Lalitha
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - V. Murugesh
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - Christian Bruneau
- Univ RennesISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Gangavaram V. M. Sharma
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - Surisetti Suresh
- Department of Organic Synthesis and Process ChemistryCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - Mathieu Achard
- Univ RennesISCR (Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
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18
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Shu S, Huang M, Jiang J, Qu LB, Liu Y, Ke Z. Catalyzed or non-catalyzed: chemoselectivity of Ru-catalyzed acceptorless dehydrogenative coupling of alcohols and amines via metal–ligand bond cooperation and (de)aromatization. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00243j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanistic origin of the chemoselectivity for Ru-catalyzed acceptorless coupling of amines and alcohols.
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Affiliation(s)
- Siwei Shu
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Meijie Huang
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Jingxing Jiang
- School of Materials Science and Engineering
- PCFM Lab
- Sun Yat-sen University
- Guangzhou 510275
- P. R. China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Yan Liu
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- P. R. China
| | - Zhuofeng Ke
- School of Materials Science and Engineering
- PCFM Lab
- Sun Yat-sen University
- Guangzhou 510275
- P. R. China
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19
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Nguyen DH, Trivelli X, Capet F, Paul JF, Dumeignil F, Gauvin RM. Manganese Pincer Complexes for the Base-Free, Acceptorless Dehydrogenative Coupling of Alcohols to Esters: Development, Scope, and Understanding. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03554] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Duc Hanh Nguyen
- Univ.
Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 (UCCS), Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Xavier Trivelli
- Univ.
Lille, CNRS, UMR 8576 (UGSF), Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France
| | - Frédéric Capet
- Univ.
Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 (UCCS), Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Jean-François Paul
- Univ.
Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 (UCCS), Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Franck Dumeignil
- Univ.
Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 (UCCS), Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Régis M. Gauvin
- Univ.
Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 (UCCS), Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
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20
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Brannigan RP, Dove AP. Synthesis, properties and biomedical applications of hydrolytically degradable materials based on aliphatic polyesters and polycarbonates. Biomater Sci 2016; 5:9-21. [PMID: 27840864 DOI: 10.1039/c6bm00584e] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polyester-based polymers represent excellent candidates in synthetic biodegradable and bioabsorbable materials for medical applications owing to their tailorable properties. The use of synthetic polyesters as biomaterials offers a unique control of morphology, mechanical properties and degradation profile through monomer selection, polymer composition (i.e. copolymer vs. homopolymer, stereocomplexation etc.) and molecular weight. Within this review, the synthetic routes, degradation modes and application of aliphatic polyester- and polycarbonate-based biomaterials are discussed.
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Affiliation(s)
| | - Andrew P Dove
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
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21
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Malineni J, Singh S, Tillmann S, Keul H, Möller M. Aliphatic Polyethers with Sulfate, Carboxylate, and Hydroxyl Side Groups-Do They Show Anticoagulant Properties? Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/30/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Jagadeesh Malineni
- DWI-Leibniz Institute for Interactive Materials; Institute of Technical and Macromolecular Chemistry; RWTH Aachen University; Forckenbeckstraße 50 D-52074 Aachen Germany
| | - Smriti Singh
- DWI-Leibniz Institute for Interactive Materials; Institute of Technical and Macromolecular Chemistry; RWTH Aachen University; Forckenbeckstraße 50 D-52074 Aachen Germany
| | - Sabine Tillmann
- Department for Anaesthesiology; University Hospital RWTH Aachen; Pauwelsstraße 30 D-52074 Aachen Germany
| | - Helmut Keul
- DWI-Leibniz Institute for Interactive Materials; Institute of Technical and Macromolecular Chemistry; RWTH Aachen University; Forckenbeckstraße 50 D-52074 Aachen Germany
| | - Martin Möller
- DWI-Leibniz Institute for Interactive Materials; Institute of Technical and Macromolecular Chemistry; RWTH Aachen University; Forckenbeckstraße 50 D-52074 Aachen Germany
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22
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Zhang L, Raffa G, Nguyen DH, Swesi Y, Corbel-Demailly L, Capet F, Trivelli X, Desset S, Paul S, Paul JF, Fongarland P, Dumeignil F, Gauvin RM. Acceptorless dehydrogenative coupling of alcohols catalysed by ruthenium PNP complexes: Influence of catalyst structure and of hydrogen mass transfer. J Catal 2016. [DOI: 10.1016/j.jcat.2016.06.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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23
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Cheng J, Zhu M, Wang C, Li J, Jiang X, Wei Y, Tang W, Xue D, Xiao J. Chemoselective dehydrogenative esterification of aldehydes and alcohols with a dimeric rhodium(ii) catalyst. Chem Sci 2016; 7:4428-4434. [PMID: 30155090 PMCID: PMC6090528 DOI: 10.1039/c6sc00145a] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 03/27/2016] [Indexed: 01/14/2023] Open
Abstract
A dimeric rhodium(ii) complex catalyses the chemoselective dehydrogenative esterification of aldehydes and alcohols.
Dehydrogenative cross-coupling of aldehydes with alcohols as well as dehydrogentive cross-coupling of primary alcohols to produce esters have been developed using a Rh-terpyridine catalyst. The catalyst demonstrates broad substrate scope and good functional group tolerance, affording esters highly selectively. The high chemoselectivity of the catalyst stems from its preference for dehydrogenation of benzylic alcohols over aliphatic ones. Preliminary mechanistic studies suggest that the active catalyst is a dimeric Rh(ii) species, operating via a mechanism involving metal–base–metal cooperativity.
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Affiliation(s)
- Junjie Cheng
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Meijuan Zhu
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Junjun Li
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Xue Jiang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Yawen Wei
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Weijun Tang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China . .,Department of Chemistry , University of Liverpool , Liverpool , L69 7ZD , UK .
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24
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Stempfle F, Ortmann P, Mecking S. Long-Chain Aliphatic Polymers To Bridge the Gap between Semicrystalline Polyolefins and Traditional Polycondensates. Chem Rev 2016; 116:4597-641. [DOI: 10.1021/acs.chemrev.5b00705] [Citation(s) in RCA: 166] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Florian Stempfle
- Chair of
Chemical Materials
Science, Department of Chemistry, University of Konstanz, Universitätsstrasse
10, D-78457 Konstanz, Germany
| | - Patrick Ortmann
- Chair of
Chemical Materials
Science, Department of Chemistry, University of Konstanz, Universitätsstrasse
10, D-78457 Konstanz, Germany
| | - Stefan Mecking
- Chair of
Chemical Materials
Science, Department of Chemistry, University of Konstanz, Universitätsstrasse
10, D-78457 Konstanz, Germany
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25
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Werkmeister S, Neumann J, Junge K, Beller M. Pincer-Type Complexes for Catalytic (De)Hydrogenation and Transfer (De)Hydrogenation Reactions: Recent Progress. Chemistry 2015; 21:12226-50. [DOI: 10.1002/chem.201500937] [Citation(s) in RCA: 275] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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26
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Talwar D, Gonzalez-de-Castro A, Li HY, Xiao J. Regioselective Acceptorless Dehydrogenative Coupling of N-Heterocycles toward Functionalized Quinolines, Phenanthrolines, and Indoles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500346] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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27
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Regioselective Acceptorless Dehydrogenative Coupling of N-Heterocycles toward Functionalized Quinolines, Phenanthrolines, and Indoles. Angew Chem Int Ed Engl 2015; 54:5223-7. [DOI: 10.1002/anie.201500346] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Indexed: 01/10/2023]
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28
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Malineni J, Keul H, Möller M. An efficient N-heterocyclic carbene-ruthenium complex: application towards the synthesis of polyesters and polyamides. Macromol Rapid Commun 2015; 36:547-52. [PMID: 25653190 DOI: 10.1002/marc.201400699] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 12/27/2014] [Indexed: 11/10/2022]
Abstract
The ruthenium benzimidazolylidene-based N-heterocyclic carbene (NHC) complex 4 catalyzes the direct dehydrogenative condensation of primary alcohols into esters and primary alcohols in the presence of amines to the corresponding amides in high yields. This efficient new catalytic system shows a high selectivity towards the conversion of diols to polyesters and of a mixture of diols and diamines to polyamides. The only side product formed in this reaction is molecular hydrogen. Remarkable is the conversion of hydroxytelechelic polytetrahydrofuran (Mn = 1000 g mol(-1))--a polydispers starting material--into a hydrolytically degradable polyether with ester linkages (Mn = 32 600 g mol(-1)) and, in the presence of aliphatic diamines, into a polyether with amide linkages in the back bone (Mn = 16 000 g mol(-1) ).
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Affiliation(s)
- Jagadeesh Malineni
- DWI - Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, ,D-52074, Aachen, Germany
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29
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Gunanathan C, Milstein D. Bond activation and catalysis by ruthenium pincer complexes. Chem Rev 2014; 114:12024-87. [PMID: 25398045 DOI: 10.1021/cr5002782] [Citation(s) in RCA: 710] [Impact Index Per Article: 71.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) , Bhubaneswar 751005, India
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30
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Krall EM, Klein TW, Andersen RJ, Nett AJ, Glasgow RW, Reader DS, Dauphinais BC, Mc Ilrath SP, Fischer AA, Carney MJ, Hudson DJ, Robertson NJ. Controlled hydrogenative depolymerization of polyesters and polycarbonates catalyzed by ruthenium(ii) PNN pincer complexes. Chem Commun (Camb) 2014; 50:4884-7. [DOI: 10.1039/c4cc00541d] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Milko P, Iron MA. On the Innocence of Bipyridine Ligands: How Well Do DFT Functionals Fare for These Challenging Spin Systems? J Chem Theory Comput 2013; 10:220-35. [DOI: 10.1021/ct400913z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Petr Milko
- Computational
Chemistry Unit,
Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Mark A. Iron
- Computational
Chemistry Unit,
Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel 76100
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32
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Vogt M, Nerush A, Iron MA, Leitus G, Diskin-Posner Y, Shimon LJW, Ben-David Y, Milstein D. Activation of nitriles by metal ligand cooperation. Reversible formation of ketimido- and enamido-rhenium PNP pincer complexes and relevance to catalytic design. J Am Chem Soc 2013; 135:17004-18. [PMID: 24187982 DOI: 10.1021/ja4071859] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The dearomatized complex cis-[Re(PNP(tBu)*)(CO)2] (4) undergoes cooperative activation of C≡N triple bonds of nitriles via [1,3]-addition. Reversible C-C and Re-N bond formation in 4 was investigated in a combined experimental and computational study. The reversible formation of the ketimido complexes (5-7) was observed. When nitriles bearing an alpha methylene group are used, reversible formation of the enamido complexes (8 and 9) takes place. The reversibility of the activation of the nitriles in the resulting ketimido compounds was demonstrated by the displacement of p-CF3-benzonitrile from cis-[Re(PNP(tBu)-N═CPh(pCF3))(CO)2] (6) upon addition of an excess of benzonitrile and by the temperature-dependent [1,3]-addition of pivalonitrile to complex 4. The reversible binding of the nitrile in the enamido compound cis-[Re(PNP(tBu)-HNC═CHPh)(CO)2] (9) was demonstrated via the displacement of benzyl cyanide from 9 by CO. Computational studies suggest a stepwise activation of the nitriles by 4, with remarkably low activation barriers, involving precoordination of the nitrile group to the Re(I) center. The enamido complex 9 reacts via β-carbon methylation to give the primary imino complex cis-[Re(PNP(tBu)-HN═CC(Me)Ph)(CO)2]OTf 11. Upon deprotonation of 11 and subsequent addition of benzyl cyanide, complex 9 is regenerated and the monomethylation product 2-phenylpropanenitrile is released. Complexes 4 and 9 were found to catalyze the Michael addition of benzyl cyanide derivatives to α,β-unsaturated esters and carbonyls.
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Affiliation(s)
- Matthias Vogt
- Department of Organic Chemistry, and ‡Department of Chemical Research Support, The Weizmann Institute of Science , Rehovot 76100, Israel
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33
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Gunanathan C, Milstein D. Applications of Acceptorless Dehydrogenation and Related Transformations in Chemical Synthesis. Science 2013; 341:1229712. [DOI: 10.1126/science.1229712] [Citation(s) in RCA: 1039] [Impact Index Per Article: 94.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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34
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Vogt M, Rivada-Wheelaghan O, Iron MA, Leitus G, Diskin-Posner Y, Shimon LJW, Ben-David Y, Milstein D. Anionic Nickel(II) Complexes with Doubly Deprotonated PNP Pincer-Type Ligands and Their Reactivity toward CO2. Organometallics 2012. [DOI: 10.1021/om3010838] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthias Vogt
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
| | - Orestes Rivada-Wheelaghan
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
| | - Mark A. Iron
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
| | - Gregory Leitus
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
| | - Yael Diskin-Posner
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
| | - Linda J. W. Shimon
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
| | - Yehoshoa Ben-David
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
| | - David Milstein
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot
76100, Israel
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35
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Feller M, Diskin-Posner Y, Shimon LJW, Ben-Ari E, Milstein D. N–H Activation by Rh(I) via Metal–Ligand Cooperation. Organometallics 2012. [DOI: 10.1021/om300248r] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Moran Feller
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot,
76100, Israel
| | - Yael Diskin-Posner
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot,
76100, Israel
| | - Linda J. W. Shimon
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot,
76100, Israel
| | - Eyal Ben-Ari
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot,
76100, Israel
| | - David Milstein
- Department
of Organic Chemistry and ‡Department of Chemical Research Support, The Weizmann Institute of Science, Rehovot,
76100, Israel
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