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Budny-Godlewski K, Piekarski DG, Justyniak I, Leszczyński MK, Nawrocki J, Kubas A, Lewiński J. Uncovering Factors Controlling Reactivity of Metal-TEMPO Reaction Systems in the Solid State and Solution. Chemistry 2024:e202401968. [PMID: 38801170 DOI: 10.1002/chem.202401968] [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: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Nitroxides find application in various areas of chemistry, and a more in-depth understanding of factors controlling their reactivity with metal complexes is warranted to promote further developments. Here, we report on the effect of the metal centre Lewis acidity on both the distribution of the O- and N-centered spin density in 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO) and turning TEMPO from the O- to N-radical mode scavenger in metal-TEMPO systems. We use Et(Cl)Zn/TEMPO model reaction system with tuneable reactivity in the solid state and solution. Among various products, a unique Lewis acid-base adduct of Cl2Zn with the N-ethylated TEMPO was isolated and structurally characterised, and the so-called solid-state 'slow chemistry' reaction led to a higher yield of the N-alkylated product. The revealed structure-activity/selectivity correlations are exceptional yet are entirely rationalised by the mechanistic underpinning supported by theoretical calculations of studied model systems. This work lays a foundation and mechanistic blueprint for future metal/nitroxide systems exploration.
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Affiliation(s)
- Krzysztof Budny-Godlewski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Dariusz G Piekarski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Iwona Justyniak
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Michał K Leszczyński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Jan Nawrocki
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Adam Kubas
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Janusz Lewiński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
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2
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Kubota K, Endo T, Ito H. Solid-state mechanochemistry for the rapid and efficient synthesis of tris-cyclometalated iridium(iii) complexes. Chem Sci 2024; 15:3365-3371. [PMID: 38425515 PMCID: PMC10901499 DOI: 10.1039/d3sc05796h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/18/2024] [Indexed: 03/02/2024] Open
Abstract
Tris-cyclometalated iridium(iii) complexes have received widespread attention as attractive prospective materials for e.g., organic light-emitting diodes (OLEDs), photoredox catalysts, and bioimaging probes. However, their preparation usually requires prolonged reaction times, significant amounts of high-boiling solvents, multistep synthesis, and inert-gas-line techniques. Unfortunately, these requirements represent major drawbacks from both a production-cost and an environmental perspective. Herein, we show that a two-step mechanochemical protocol using ball milling enables the rapid and efficient synthesis of various tris-cyclometalated iridium(iii) complexes from relatively cheap iridium(iii) chloride hydrate without the use of significant amounts of organic solvent in air. Notably, a direct one-pot procedure is also demonstrated. The present solid-state approach can be expected to inspire the development of cost-effective and timely production methods for these valuable iridium-based complexes, as well as the discovery of new phosphorescent materials, sensors, and catalysts.
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Affiliation(s)
- Koji Kubota
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
| | - Tsubura Endo
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University Sapporo Hokkaido Japan
| | - Hajime Ito
- Division of Applied Chemistry and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University Sapporo Hokkaido Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido Japan
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3
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Wenger LE, Hanusa TP. Synthesis without solvent: consequences for mechanochemical reactivity. Chem Commun (Camb) 2023; 59:14210-14222. [PMID: 37953718 DOI: 10.1039/d3cc04929a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Solvents are so nearly omnipresent in synthetic chemistry that a classic question for their use has been: "What is the best solvent for this reaction?" The increasing use of mechanochemical approaches to synthesis-by grinding, milling, extrusion, or other means-and usually with no, or only limited, amounts of solvent, has raised an alternative question for the synthetic chemist: "What happens if there is no solvent?" This review focuses on a three-part answer to that question: when there is little change ("solvent-optional" reactions); when solvent needs to be present in some form, even if only in the amounts provided by liquid-assisted (LAG) or solvate-assisted grinding; and those cases in which mechanochemistry allows access to compounds that cannot be obtained from solution-based routes. The emphasis here is on inorganic and organometallic systems, including selected examples of mechanosynthesis and mechanocatalysis. Issues of mechanochemical depictions and the adequacy of LAG descriptions are also reviewed.
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Affiliation(s)
- Lauren E Wenger
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, 37235, USA.
| | - Timothy P Hanusa
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, 37235, USA.
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4
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Cabeza JA, Reynes JF, García F, García-Álvarez P, García-Soriano R. Fast and scalable solvent-free access to Lappert's heavier tetrylenes E{N(SiMe 3) 2} 2 (E = Ge, Sn, Pb) and ECl{N(SiMe 3) 2} (E = Ge, Sn). Chem Sci 2023; 14:12477-12483. [PMID: 38020393 PMCID: PMC10646885 DOI: 10.1039/d3sc02709k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/03/2023] [Accepted: 09/24/2023] [Indexed: 12/01/2023] Open
Abstract
Iconic Lappert's heavier tetrylenes E{N(SiMe3)2}2 (E = Ge (1), Sn (2), Pb (3)) have been efficiently prepared from GeCl2·(1,4-dioxane), SnCl2 or PbCl2 and Li{N(SiMe3)2} via a completely solvent-free one-pot mechanochemical route followed by sublimation. This fast, high-yielding and scalable approach (2 has been prepared in a 100 mmol scale), which involves a small environmental footprint, represents a remarkable improvement over any synthetic route reported over the last five decades, being a so far rare example of the use of mechanochemistry in the realm of main group chemistry. This solventless route has been successfully extended to the preparation of other heavier tetrylenes, such as ECl{N(SiMe3)2} (E = Ge (4), Sn (5)).
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Affiliation(s)
- Javier A Cabeza
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
| | - Javier F Reynes
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
| | - Felipe García
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
- School of Chemistry, Monash University Clayton Victoria 3800 Australia
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
| | - Rubén García-Soriano
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
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5
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Wenger LE, Shawver NM, Brennessel WW, Long BK, Hanusa TP. Heteroleptic Aluminum Allyls as Initiators for Lactide Polymerization. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00482] [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)
- Lauren E. Wenger
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee37235, United States
| | - Nicholas M. Shawver
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee37996-1600, United States
| | - William W. Brennessel
- X-ray Crystallographic Facility, Department of Chemistry, University of Rochester, Rochester, New York14627, United States
| | - Brian K. Long
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee37996-1600, United States
| | - Timothy P. Hanusa
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee37235, United States
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6
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Gao P, Jiang J, Maeda S, Kubota K, Ito H. Mechanochemically Generated Calcium‐Based Heavy Grignard Reagents and Their Application to Carbon–Carbon Bond‐Forming Reactions. Angew Chem Int Ed Engl 2022; 61:e202207118. [DOI: 10.1002/anie.202207118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Indexed: 12/18/2022]
Affiliation(s)
- Pan Gao
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Sapporo Hokkaido 060-8628 Japan
| | - Julong Jiang
- Department of Chemistry Faculty of Science Hokkaido University Sapporo Hokkaido 060-8628 Japan
| | - Satoshi Maeda
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Sapporo Hokkaido 060-8628 Japan
- Department of Chemistry Faculty of Science Hokkaido University Sapporo Hokkaido 060-8628 Japan
| | - Koji Kubota
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Sapporo Hokkaido 060-8628 Japan
- Division of Applied Chemistry Graduate School of Engineering Hokkaido University Sapporo Hokkaido 060-8628 Japan
| | - Hajime Ito
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) Hokkaido University Sapporo Hokkaido 060-8628 Japan
- Division of Applied Chemistry Graduate School of Engineering Hokkaido University Sapporo Hokkaido 060-8628 Japan
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7
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Gao P, Jiang J, Maeda S, Kubota K, Ito H. Mechanochemically Generated Calcium‐Based Heavy Grignard Reagents and Their Application to Carbon−Carbon Bond‐Forming Reactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207118] [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)
- Pan Gao
- Hokkaido University: Hokkaido Daigaku Institute for Chemical Reaction Design and Discovery JAPAN
| | - Julong Jiang
- Hokkaido University: Hokkaido Daigaku Chemistry JAPAN
| | - Satoshi Maeda
- Hokkaido University: Hokkaido Daigaku Chemistry JAPAN
| | - Koji Kubota
- Hokkaido University: Hokkaido Daigaku Division of Applied Chemistry JAPAN
| | - Hajime Ito
- Hokkaido University Division of Applied Chemistry Kita-13 Nishi-8Kita-ku 060-8628 Sapporo JAPAN
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8
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Manipulating Reaction Energy Coordinate Landscape of Mechanochemical Diaza-Cope Rearrangement. Molecules 2022; 27:molecules27082570. [PMID: 35458767 PMCID: PMC9027841 DOI: 10.3390/molecules27082570] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 02/04/2023] Open
Abstract
Chiral vicinal diamines, a unique class of optically-active building blocks, play a crucial role in material design, pharmaceutical, and catalysis. Traditionally, their syntheses are all solvent-based approaches, which make organic solvent an indispensable part of their production. As part of our program aiming to develop chemical processes with reduced carbon footprints, we recently reported a highly practical and environmentally-friendly synthetic route to chiral vicinal diamines by solvent-free mechanochemical diaza-Cope rearrangement. We herein showed that a new protocol by co-milling with common laboratory solid additives, such as silica gel, can significantly enhance the efficiency of the reaction, compared to reactions in the absence of additives. One possible explanation is the Lewis acidic nature of additives that accelerates a key Schiff base formation step. Reaction monitoring experiments tracing all the reaction species, including reactants, intermediates, and product, suggested that the reaction profile is distinctly different from ball-milling reactions without additives. Collectively, this work demonstrated that additive effect is a powerful tool to manipulate a reaction pathway in mechanochemical diazo-Cope rearrangement pathway, and this is expected to find broad interest in organic synthesis using mechanical force as an energy input.
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9
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Jia W, Li X, Zhi X, Zhong R. Mechanochemical synthesis of half‐sandwich iridium/rhodium complexes with 8‐hydroxyquinoline derivatives ligands. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6588] [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)
- Wei‐Guo Jia
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular‐Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science Anhui Normal University Wuhu China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter Chinese Academy of Science Fuzhou China
| | - Xiao‐Dong Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular‐Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science Anhui Normal University Wuhu China
| | - Xue‐Ting Zhi
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular‐Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science Anhui Normal University Wuhu China
| | - Rui Zhong
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular‐Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science Anhui Normal University Wuhu China
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10
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Takahashi R, Seo T, Kubota K, Ito H. Palladium-Catalyzed Solid-State Polyfluoroarylation of Aryl Halides Using Mechanochemistry. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03731] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rikuro Takahashi
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Tamae Seo
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Koji Kubota
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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11
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DeGroot HP, Hanusa TP. Solvate-Assisted Grinding: Metal Solvates as Solvent Sources in Mechanochemically Driven Organometallic Reactions. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Henry P. DeGroot
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Timothy P. Hanusa
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, United States
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12
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Fetrow TV, Daly SR. Mechanochemical synthesis and structural analysis of trivalent lanthanide and uranium diphenylphosphinodiboranates. Dalton Trans 2021; 50:11472-11484. [PMID: 34346459 DOI: 10.1039/d1dt01932e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphinodiboranates (H3BPR2BH3-) are a class of borohydrides that have merited a reputation as weakly coordinating anions, which is attributed in part to the dearth of coordination complexes known with transition metals, lanthanides, and actinides. We recently reported how K(H3BPtBu2BH3) exhibits sluggish salt elimination reactivity with f-metal halides in organic solvents such as Et2O and THF. Here we report how this reactivity appears to be further attenuated in solution when the tBu groups attached to phosphorus are exchanged for R = Ph or H, and we describe how mechanochemistry was used to overcome limited solution reactivity with K(H3BPPh2BH3). Grinding three equivalents of K(H3BPPh2BH3) with UI3(THF)4 or LnI3 (Ln = Ce, Pr, Nd) allowed homoleptic complexes with the empirical formulas U(H3BPPh2BH3)3 (1), Ce(H3BPPh2BH3)3 (2), Pr(H3BPPh2BH3)3 (3), and Nd(H3BPPh2BH3)3 (4) to be prepared and subsequently crystallized in good yields (50-80%). Single-crystal XRD studies revealed that all four complexes exist as dimers or coordination polymers in the solid-state, whereas 1H and 11B NMR spectra showed that they exist as a mixture of monomers and dimers in solution. Treating 4 with THF breaks up the dimer to yield the monomeric complex Nd(H3BPPh2BH3)3(THF)3 (4-THF). XRD studies revealed that 4-THF has one chelating and two dangling H3BPPh2BH3- ligands bound to the metal to accommodate binding of THF. In contrast to the results with K(H3BPPh2BH3), attempting the same mechanochemical reactions with Na(H3BPH2BH3) containing the simplest phosphinodiboranate were unsuccessful; only the partial metathesis product U(H3BPH2BH3)I2(THF)3 (5) was isolated in poor yields. Despite these limitations, our results offer new examples showing how mechanochemistry can be used to rapidly synthesize molecular coordination complexes that are otherwise difficult to prepare using more traditional solution methods.
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Affiliation(s)
- Taylor V Fetrow
- Department of Chemistry, The University of Iowa, E331 Chemistry Building, Iowa City, Iowa 52242, USA.
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13
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Ardila-Fierro KJ, Hernández JG. Sustainability Assessment of Mechanochemistry by Using the Twelve Principles of Green Chemistry. CHEMSUSCHEM 2021; 14:2145-2162. [PMID: 33835716 DOI: 10.1002/cssc.202100478] [Citation(s) in RCA: 171] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/07/2021] [Indexed: 05/22/2023]
Abstract
In recent years, mechanochemistry has been growing into a widely accepted alternative for chemical synthesis. In addition to their efficiency and practicality, mechanochemical reactions are also recognized for their sustainability. The association between mechanochemistry and Green Chemistry often originates from the solvent-free nature of most mechanochemical protocols, which can reduce waste production. However, mechanochemistry satisfies more than one of the Principles of Green Chemistry. In this Review we will present a series of examples that will clearly illustrate how mechanochemistry can significantly contribute to the fulfillment of Green Chemistry in a more holistic manner.
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Affiliation(s)
- Karen J Ardila-Fierro
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia
| | - José G Hernández
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia
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14
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Koby RF, Doerr AM, Rightmire NR, Schley ND, Brennessel WW, Long BK, Hanusa TP. Mechanochemical Formation, Solution Rearrangements, and Catalytic Behavior of a Polymorphic Ca/K Allyl Complex. Chemistry 2021; 27:8195-8202. [DOI: 10.1002/chem.202100589] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Indexed: 12/24/2022]
Affiliation(s)
- Ross F. Koby
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - Alicia M. Doerr
- Department of Chemistry University of Tennessee Knoxville TN 37996–1600 USA
| | | | - Nathan D. Schley
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - William W. Brennessel
- X-ray Crystallographic Facility, Department of Chemistry University of Rochester Rochester NY 14627 USA
| | - Brian K. Long
- Department of Chemistry University of Tennessee Knoxville TN 37996–1600 USA
| | - Timothy P. Hanusa
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
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15
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Fiss BG, Richard AJ, Douglas G, Kojic M, Friščić T, Moores A. Mechanochemical methods for the transfer of electrons and exchange of ions: inorganic reactivity from nanoparticles to organometallics. Chem Soc Rev 2021; 50:8279-8318. [DOI: 10.1039/d0cs00918k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
For inorganic metathesis and reduction reactivity, mechanochemistry is demonstrating great promise towards both nanoparticles and organometallics syntheses.
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Affiliation(s)
- Blaine G. Fiss
- Centre in Green Chemistry and Catalysis
- Department of Chemistry
- McGill University
- Montréal
- Canada
| | - Austin J. Richard
- Centre in Green Chemistry and Catalysis
- Department of Chemistry
- McGill University
- Montréal
- Canada
| | - Georgia Douglas
- Centre in Green Chemistry and Catalysis
- Department of Chemistry
- McGill University
- Montréal
- Canada
| | - Monika Kojic
- Centre in Green Chemistry and Catalysis
- Department of Chemistry
- McGill University
- Montréal
- Canada
| | - Tomislav Friščić
- Centre in Green Chemistry and Catalysis
- Department of Chemistry
- McGill University
- Montréal
- Canada
| | - Audrey Moores
- Centre in Green Chemistry and Catalysis
- Department of Chemistry
- McGill University
- Montréal
- Canada
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17
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Zhu X, Jiang Y, Chen J, Wang S, Huang Z, Zhu S, Zhao X, Yue W, Zhang J, Wu W, Zhong X. Rare‐Earth
Metal Alkyl Complexes with
3‐Arylamido‐Functionalized
Indolyl Ligands: Synthesis, Characterization and Reactivity
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Xiancui Zhu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Yuzhe Jiang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Jun Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Shaowu Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
- Anhui Laboratory of Clean Catalytic Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, College of Biological and Chemical EngineeringAnhui Polytechnic University Wuhu Anhui 241000 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
| | - Zeming Huang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Shan Zhu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Xu Zhao
- Anhui Laboratory of Clean Catalytic Engineering, Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, College of Biological and Chemical EngineeringAnhui Polytechnic University Wuhu Anhui 241000 China
| | - Wenrun Yue
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Jun Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Weikang Wu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
| | - Xiangyang Zhong
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule‐Based Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241000 China
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18
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Seo T, Kubota K, Ito H. Selective Mechanochemical Monoarylation of Unbiased Dibromoarenes by in Situ Crystallization. J Am Chem Soc 2020; 142:9884-9889. [DOI: 10.1021/jacs.0c01739] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tamae Seo
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Koji Kubota
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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19
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Koby RF, Doerr AM, Rightmire NR, Schley ND, Long BK, Hanusa TP. An η
3
‐Bound Allyl Ligand on Magnesium in a Mechanochemically Generated Mg/K Allyl Complex. Angew Chem Int Ed Engl 2020; 59:9542-9548. [DOI: 10.1002/anie.201916410] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 02/07/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Ross F. Koby
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - Alicia M. Doerr
- Department of Chemistry University of Tennessee Knoxville TN 37996-1600 USA
| | | | - Nathan D. Schley
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - Brian K. Long
- Department of Chemistry University of Tennessee Knoxville TN 37996-1600 USA
| | - Timothy P. Hanusa
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
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20
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Koby RF, Doerr AM, Rightmire NR, Schley ND, Long BK, Hanusa TP. An η
3
‐Bound Allyl Ligand on Magnesium in a Mechanochemically Generated Mg/K Allyl Complex. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916410] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ross F. Koby
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - Alicia M. Doerr
- Department of Chemistry University of Tennessee Knoxville TN 37996-1600 USA
| | | | - Nathan D. Schley
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
| | - Brian K. Long
- Department of Chemistry University of Tennessee Knoxville TN 37996-1600 USA
| | - Timothy P. Hanusa
- Department of Chemistry Vanderbilt University Nashville TN 37235 USA
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21
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Bodach A, Bamford KL, Longobardi LE, Felderhoff M, Stephan DW. Group 13-derived radicals from α-diimines via hydro- and carboalumination reactions. Dalton Trans 2020; 49:11689-11696. [DOI: 10.1039/d0dt02498h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mechanochemically synthesized alanes and (hydrido-)alanes were reacted with α-diimines to form aluminium derived radicals.
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Affiliation(s)
- Alexander Bodach
- Department of Chemistry
- University of Toronto
- Toronto
- Canada M5S 3H6
- Max-Planck-Institut für Kohlenforschung
| | | | | | - Michael Felderhoff
- Max-Planck-Institut für Kohlenforschung
- Department of Heterogeneous Catalysis
- 45470 Muelheim an der Ruhr
- Germany
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22
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Allenbaugh RJ, Zachary JR, Underwood AN, Bryson JD, Williams JR, Shaw A. Kinetic analysis of the complete mechanochemical synthesis of a palladium(II) carbene complex. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107622] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Affiliation(s)
- Thomas E. Shaw
- Department of Chemistry and the Renewable Energy and Chemical Transformations Cluster, University of Central Florida, Orlando, Florida 32816, United States
| | - Logesh Mathivathanan
- Department of Chemistry & Biochemistry and the Biomolecular Sciences Institute, Florida International University, Miami, Florida 33199, United States
| | - Titel Jurca
- Department of Chemistry and the Renewable Energy and Chemical Transformations Cluster, University of Central Florida, Orlando, Florida 32816, United States
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24
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Affiliation(s)
- Tomislav Friščić
- Department of Chemistry McGill University 801 Sherbrooke St. W. H3A 0B8 Montreal Canada
- Laboratoire SPCMIB, CNRS UMR 5068 Université de Toulouse UPS 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Cristina Mottillo
- Department of Chemistry McGill University 801 Sherbrooke St. W. H3A 0B8 Montreal Canada
| | - Hatem M. Titi
- Department of Chemistry McGill University 801 Sherbrooke St. W. H3A 0B8 Montreal Canada
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25
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Friščić T, Mottillo C, Titi HM. Mechanochemistry for Synthesis. Angew Chem Int Ed Engl 2019; 59:1018-1029. [DOI: 10.1002/anie.201906755] [Citation(s) in RCA: 392] [Impact Index Per Article: 78.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Tomislav Friščić
- Department of Chemistry McGill University 801 Sherbrooke St. W. H3A 0B8 Montreal Canada
- Laboratoire SPCMIB, CNRS UMR 5068 Université de Toulouse UPS 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Cristina Mottillo
- Department of Chemistry McGill University 801 Sherbrooke St. W. H3A 0B8 Montreal Canada
| | - Hatem M. Titi
- Department of Chemistry McGill University 801 Sherbrooke St. W. H3A 0B8 Montreal Canada
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26
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Koby RF, Rightmire NR, Schley ND, Hanusa TP, Brennessel WW. Halide metathesis in overdrive: mechanochemical synthesis of a heterometallic group 1 allyl complex. Beilstein J Org Chem 2019; 15:1856-1863. [PMID: 31467607 PMCID: PMC6693392 DOI: 10.3762/bjoc.15.181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/18/2019] [Indexed: 12/23/2022] Open
Abstract
As a synthesis technique, halide metathesis (n RM + M'Xn → RnM' + n MX) normally relies for its effectiveness on the favorable formation of a metal halide byproduct (MX), often aided by solubility equilibria in solution. Owing to the lack of significant thermodynamic driving forces, intra-alkali metal exchange is one of the most challenging metathetical exchanges to attempt, especially when conducted without solvent. Nevertheless, grinding together the bulky potassium allyl [KA']∞ (A' = [1,3-(SiMe3)2C3H3]–) and CsI produces the heterometallic complex [CsKA'2]∞ in low yield, which was crystallographically characterized as a coordination polymer that displays site disorder of the K+ and Cs+ ions. The entropic benefits of mixed Cs/K metal centers, but more importantly, the generation of multiple intermolecular K…CH3 and Cs…CH3 interactions in [CsKA'2]∞, enable an otherwise unfavorable halide metathesis to proceed with mechanochemical assistance. From this result, we demonstrate that ball milling and unexpected solid-state effects can permit seemingly unfavored reactions to occur.
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Affiliation(s)
- Ross F Koby
- Department of Chemistry, Vanderbilt University, PO Box 1822, Nashville, TN 37235, USA
| | - Nicholas R Rightmire
- Department of Chemistry, Vanderbilt University, PO Box 1822, Nashville, TN 37235, USA
| | - Nathan D Schley
- Department of Chemistry, Vanderbilt University, PO Box 1822, Nashville, TN 37235, USA
| | - Timothy P Hanusa
- Department of Chemistry, Vanderbilt University, PO Box 1822, Nashville, TN 37235, USA
| | - William W Brennessel
- X-ray Crystallographic Facility, B51 Hutchison Hall, Department of Chemistry, University of Rochester, Rochester, NY 14627, USA
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27
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Kubota K, Takahashi R, Ito H. Mechanochemistry allows carrying out sensitive organometallic reactions in air: glove-box-and-Schlenk-line-free synthesis of oxidative addition complexes from aryl halides and palladium(0). Chem Sci 2019; 10:5837-5842. [PMID: 31293773 PMCID: PMC6566379 DOI: 10.1039/c9sc01711a] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/03/2019] [Indexed: 12/17/2022] Open
Abstract
Organic reactions that employ moisture- and/or oxygen-sensitive reagents or intermediates usually involve the use of glove-box or Schlenk-line techniques as well as dry and degassed solvents. Unfortunately, these requirements may greatly reduce the utility of the targeted organic molecules. Herein, we demonstrate that solvent-free mechanochemical synthetic techniques allow using highly oxygen-sensitive palladium(0) species in air for the stoichiometric oxidative addition of aryl halides. The low diffusion efficiency of gaseous oxygen in crystalline or amorphous solid-state reaction mixtures should be the main reason for the low impact of the presence of atmospheric oxygen on the sensitive oxidative addition reactions under the applied conditions. This study thus illustrates the outstanding potential of mechanochemistry to serve as an operationally simple, glove-box-and-Schlenk-line-free synthetic route to organometallic compounds and other valuable synthetic targets, even when sensitive reagents or intermediates are involved.
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Affiliation(s)
- Koji Kubota
- Division of Applied Chemistry and Frontier Chemistry Center , Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido , Japan . ;
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) , Hokkaido University , Sapporo , Hokkaido , Japan
| | - Rina Takahashi
- Division of Applied Chemistry and Frontier Chemistry Center , Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido , Japan . ;
| | - Hajime Ito
- Division of Applied Chemistry and Frontier Chemistry Center , Faculty of Engineering , Hokkaido University , Sapporo , Hokkaido , Japan . ;
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD) , Hokkaido University , Sapporo , Hokkaido , Japan
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28
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Beillard A, Bantreil X, Métro TX, Martinez J, Lamaty F. Alternative Technologies That Facilitate Access to Discrete Metal Complexes. Chem Rev 2019; 119:7529-7609. [PMID: 31059243 DOI: 10.1021/acs.chemrev.8b00479] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Organometallic complexes: these two words jump to the mind of the chemist and are directly associated with their utility in catalysis or as a pharmaceutical. Nevertheless, to be able to use them, it is necessary to synthesize them, and it is not always a small matter. Typically, synthesis is via solution chemistry, using a round-bottom flask and a magnetic or mechanical stirrer. This review takes stock of alternative technologies currently available in laboratories that facilitate the synthesis of such complexes. We highlight five such technologies: mechanochemistry, also known as solvent-free chemistry, uses a mortar and pestle or a ball mill; microwave activation can drastically reduce reaction times; ultrasonic activation promotes chemical reactions because of cavitation phenomena; photochemistry, which uses light radiation to initiate reactions; and continuous flow chemistry, which is increasingly used to simplify scale-up. While facilitating the synthesis of organometallic compounds, these enabling technologies also allow access to compounds that cannot be obtained in any other way. This shows how the paradigm is changing and evolving toward new technologies, without necessarily abandoning the round-bottom flask. A bright future is ahead of the organometallic chemist, thanks to these novel technologies.
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Affiliation(s)
- Audrey Beillard
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Xavier Bantreil
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Thomas-Xavier Métro
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
| | - Frédéric Lamaty
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université de Montpellier, ENSCM, Campus Triolet, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
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29
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Bolm C, Hernández JG. Mechanochemistry of Gaseous Reactants. Angew Chem Int Ed Engl 2019; 58:3285-3299. [DOI: 10.1002/anie.201810902] [Citation(s) in RCA: 164] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Carsten Bolm
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - José G. Hernández
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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30
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Affiliation(s)
- Carsten Bolm
- Institut für Organische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Deutschland
| | - José G. Hernández
- Institut für Organische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Deutschland
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31
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Kubota K, Seo T, Koide K, Hasegawa Y, Ito H. Olefin-accelerated solid-state C-N cross-coupling reactions using mechanochemistry. Nat Commun 2019; 10:111. [PMID: 30631071 PMCID: PMC6328594 DOI: 10.1038/s41467-018-08017-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 12/12/2018] [Indexed: 12/12/2022] Open
Abstract
Palladium-catalyzed cross-coupling reactions are one of the most powerful and versatile methods to synthesize a wide range of complex functionalized molecules. However, the development of solid-state cross-coupling reactions remains extremely limited. Here, we report a rational strategy that provides a general entry to palladium-catalyzed Buchwald-Hartwig cross-coupling reactions in the solid state. The key finding of this study is that olefin additives can act as efficient molecular dispersants for the palladium-based catalyst in solid-state media to facilitate the challenging solid-state cross-coupling. Beyond the immediate utility of this protocol, our strategy could inspire the development of industrially attractive solvent-free palladium-catalyzed cross-coupling processes for other valuable synthetic targets. Cross-coupling reactions have been achieved in solution, yet tend to be inefficient in a solid state. Here, the authors report a solid-state palladium-catalyzed Buchwald-Hartwig cross-coupling using olefins as molecular dispersants, enabling reduction of solvent waste.
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Affiliation(s)
- Koji Kubota
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan.
| | - Tamae Seo
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Katsumasa Koide
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Yasuchika Hasegawa
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan
| | - Hajime Ito
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan. .,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 060-8628, Japan.
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32
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Speight IR, Chmely SC, Hanusa TP, Rheingold AL. Mechanochemically directed metathesis in group 2 chemistry: calcium amide formation without solvent. Chem Commun (Camb) 2019; 55:2202-2205. [DOI: 10.1039/c8cc10155h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mechanochemistry nails the synthesis of a bulky calcium amide without producing the contamination that can occur with a solution preparation
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Affiliation(s)
| | | | | | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry
- University of California
- San Diego, La Jolla
- USA
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33
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Koby RF, Hanusa TP, Schley ND. Mechanochemically Driven Transformations in Organotin Chemistry: Stereochemical Rearrangement, Redox Behavior, and Dispersion-Stabilized Complexes. J Am Chem Soc 2018; 140:15934-15942. [DOI: 10.1021/jacs.8b09862] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ross F. Koby
- Department of Chemistry, Vanderbilt University, VU Station B #351822, Nashville, Tennessee 37235, United States
| | - Timothy P. Hanusa
- Department of Chemistry, Vanderbilt University, VU Station B #351822, Nashville, Tennessee 37235, United States
| | - Nathan D. Schley
- Department of Chemistry, Vanderbilt University, VU Station B #351822, Nashville, Tennessee 37235, United States
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34
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Shaw TE, Shultz LR, Garayeva LR, Blair RG, Noll BC, Jurca T. Mechanochemical routes for the synthesis of acetyl- and bis-(imino)pyridine ligands and organometallics. Dalton Trans 2018; 47:16876-16884. [PMID: 30351333 DOI: 10.1039/c8dt03608j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Organometallic precatalysts play a pivotal role in organic synthesis. However, their preparation often relies on multiple time, energy, and solvent intensive steps, including the synthesis of supporting organic ligand structures, and finally installation on the desired metal centres. We report the sustainable mechanochemical synthesis of acetyl- and bis-(imino)pyridine pincer complexes, a ubiquitous ligand class for organometallic precatalysts. The approach is extended to the one-pot synthesis of acetyl(imino)pyridine-CoCl2, where the ligand is formed in situ.
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Affiliation(s)
- Thomas E Shaw
- Department of Chemistry and the Energy Conversion and Propulsion Cluster, University of Central Florida, 4353 Scorpius Street, Orlando, FL 32816, USA.
| | - Lorianne R Shultz
- Department of Chemistry and the Energy Conversion and Propulsion Cluster, University of Central Florida, 4353 Scorpius Street, Orlando, FL 32816, USA.
| | - Louiza R Garayeva
- Department of Chemistry and the Energy Conversion and Propulsion Cluster, University of Central Florida, 4353 Scorpius Street, Orlando, FL 32816, USA.
| | - Richard G Blair
- Florida Space Institute, University of Central Florida, 12354 Research Parkway, Suite 214, Orlando, FL 32826, USA
| | - Bruce C Noll
- Bruker AXS Inc., 5465 East Cheryl Parkway, Madison, WI 53711, USA
| | - Titel Jurca
- Department of Chemistry and the Energy Conversion and Propulsion Cluster, University of Central Florida, 4353 Scorpius Street, Orlando, FL 32816, USA.
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35
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Boyde N, Steelman GW, Hanusa TP. Multicomponent Mechanochemical Synthesis of Cyclopentadienyl Titanium tert-Butoxy Halides, Cp x TiX y (O t Bu) 4-(x+y) ( x, y = 1, 2; X = Cl, Br). ACS OMEGA 2018; 3:8149-8159. [PMID: 31458952 PMCID: PMC6644457 DOI: 10.1021/acsomega.8b00943] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 07/05/2018] [Indexed: 06/10/2023]
Abstract
Titanium tert-butoxy halides of the formula Cp x TiX y (O t Bu)4-(x+y) (x, y = 1, 2; X = Cl, Br) have been prepared thorough milling the reagents without solvent. In the case of the chloride derivatives, Cp2TiCl2 is used as a starting material; in the case of the bromides, a mixture of LiCp, TiBr4, and Li[O t Bu] is used. The stoichiometric ratios of the starting materials are reflected in the major products of the reactions. Single-crystal X-ray structures are reported for Cp2TiCl(O t Bu), Cp2TiBr(O t Bu), and CpTiBr2(O t Bu), as well as for Cp2TiCl(O i Pr) and a redetermination of Cp2TiCl(OMe). The tert-butoxy derivatives are notable for their nearly linear Ti-O-C angles (>170°) that reflect Ti-O π-bonding, an interpretation supported with density functional theory calculations.
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36
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Howard JL, Cao Q, Browne DL. Mechanochemistry as an emerging tool for molecular synthesis: what can it offer? Chem Sci 2018; 9:3080-3094. [PMID: 29780455 PMCID: PMC5933221 DOI: 10.1039/c7sc05371a] [Citation(s) in RCA: 396] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/26/2018] [Indexed: 12/11/2022] Open
Abstract
Mechanochemistry is becoming more widespread as a technique for molecular synthesis with new mechanochemical reactions being discovered at increasing frequency. Whilst mechanochemical methods are solvent free and can therefore lead to improved sustainability metrics, it is more likely that the significant differences between reaction outcomes, reaction selectivities and reduced reaction times will make it a technique of interest to synthetic chemists. Herein, we provide an overview of mechanochemistry reaction examples, with 'direct' comparators to solvent based reactions, which collectively seemingly show that solid state grinding can lead to reduced reaction times, different reaction outcomes in product selectivity and in some instances different reaction products, including products not accessible in solution.
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Affiliation(s)
- Joseph L Howard
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Qun Cao
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Duncan L Browne
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
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37
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Garci A, Castor KJ, Fakhoury J, Do JL, Di Trani J, Chidchob P, Stein RS, Mittermaier AK, Friščić T, Sleiman H. Efficient and Rapid Mechanochemical Assembly of Platinum(II) Squares for Guanine Quadruplex Targeting. J Am Chem Soc 2017; 139:16913-16922. [PMID: 29058892 DOI: 10.1021/jacs.7b09819] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We present a rapid and efficient method to generate a family of platinum supramolecular square complexes, including previously inaccessible targets, through the use of ball milling mechanochemistry. This one-pot, two-step process occurs in minutes and enables the synthesis of the squares [Pt4(en)4(N∩N)4][CF3SO3]8 (en= ethylenediamine, N∩N = 4,4'-bipyridine derivatives) from commercially available precursor K2PtCl4 in good to excellent yields. In contrast, solution-based assembly requires heating the reagents for weeks and gives lower yields. Mechanistic investigations into this remarkable rate acceleration revealed that solution-based assembly (refluxing for days) results in the formation of large oligomeric side-products that are difficult to break down into the desired squares. On the other hand, ball milling in the solid state is rapid and appears to involve smaller intermediates. We examined the binding of the new supramolecular squares to guanine quadruplexes, including oncogene and telomere-associated DNA and RNA sequences. Sub-micromolar binding affinities were obtained by fluorescence displacement assays (FID) and isothermal titration calorimetry (ITC), with binding preference to telomere RNA (TERRA) sequences. ITC showed a 1:1 binding stoichiometry of the metallosquare to TERRA, while the stoichiometry was more complex for telomeric quadruplex DNA and a double-stranded DNA control.
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Affiliation(s)
- Amine Garci
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Katherine J Castor
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Johans Fakhoury
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Jean-Louis Do
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Justin Di Trani
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Pongphak Chidchob
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Robin S Stein
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Anthony K Mittermaier
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Tomislav Friščić
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
| | - Hanadi Sleiman
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montréal, Québec H3A 0B8, Canada
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38
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Hernández JG. C−H Bond Functionalization by Mechanochemistry. Chemistry 2017; 23:17157-17165. [DOI: 10.1002/chem.201703605] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Indexed: 11/12/2022]
Affiliation(s)
- José G. Hernández
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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39
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Gečiauskaitė AA, García F. Main group mechanochemistry. Beilstein J Org Chem 2017; 13:2068-2077. [PMID: 29062428 PMCID: PMC5647729 DOI: 10.3762/bjoc.13.204] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/08/2017] [Indexed: 12/22/2022] Open
Abstract
Over the past decade, mechanochemistry has emerged as a powerful methodology in the search for sustainable alternatives to conventional solvent-based synthetic routes. Mechanochemistry has already been successfully applied to the synthesis of active pharmaceutical ingredients (APIs), organic compounds, metal oxides, coordination compounds and organometallic complexes. In the main group arena, examples of synthetic mechanochemical methodologies, whilst still relatively sporadic, are on the rise. This short review provides an overview of recent advances and achievements in this area that further validate mechanochemistry as a credible alternative to solution-based methods for the synthesis of main group compounds and frameworks.
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Affiliation(s)
- Agota A Gečiauskaitė
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, 21 Nanyang Link, 637371, Singapore
| | - Felipe García
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, 21 Nanyang Link, 637371, Singapore
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40
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Achar TK, Bose A, Mal P. Mechanochemical synthesis of small organic molecules. Beilstein J Org Chem 2017; 13:1907-1931. [PMID: 29062410 PMCID: PMC5629380 DOI: 10.3762/bjoc.13.186] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/21/2017] [Indexed: 12/11/2022] Open
Abstract
With the growing interest in renewable energy and global warming, it is important to minimize the usage of hazardous chemicals in both academic and industrial research, elimination of waste, and possibly recycle them to obtain better results in greener fashion. The studies under the area of mechanochemistry which cover the grinding chemistry to ball milling, sonication, etc. are certainly of interest to the researchers working on the development of green methodologies. In this review, a collection of examples on recent developments in organic bond formation reactions like carbon–carbon (C–C), carbon–nitrogen (C–N), carbon–oxygen (C–O), carbon–halogen (C–X), etc. is documented. Mechanochemical syntheses of heterocyclic rings, multicomponent reactions and organometallic molecules including their catalytic applications are also highlighted.
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Affiliation(s)
- Tapas Kumar Achar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
| | - Anima Bose
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI, P.O. Bhimpur-Padanpur, Via Jatni, Khurda 752050, Odisha, India
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41
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Woen DH, Kotyk CM, Mueller TJ, Ziller JW, Evans WJ. Tris(pentamethylcyclopentadienyl) Complexes of Late Lanthanides Tb, Dy, Ho, and Er: Solution and Mechanochemical Syntheses and Structural Comparisons. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00385] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David H. Woen
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Christopher M. Kotyk
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Thomas J. Mueller
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Joseph W. Ziller
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - William J. Evans
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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42
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Sim Y, Shi YX, Ganguly R, Li Y, García F. Mechanochemical Synthesis of Phosphazane-Based Frameworks. Chemistry 2017; 23:11279-11285. [DOI: 10.1002/chem.201701619] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Ying Sim
- School of Physical and Mathematical Sciences; Division of Chemistry and Biological Chemistry; Nanyang Technological University; 21 Nanyang Link Singapore
| | - Yan X. Shi
- School of Physical and Mathematical Sciences; Division of Chemistry and Biological Chemistry; Nanyang Technological University; 21 Nanyang Link Singapore
| | - Rakesh Ganguly
- School of Physical and Mathematical Sciences; Division of Chemistry and Biological Chemistry; Nanyang Technological University; 21 Nanyang Link Singapore
| | - Yongxin Li
- School of Physical and Mathematical Sciences; Division of Chemistry and Biological Chemistry; Nanyang Technological University; 21 Nanyang Link Singapore
| | - Felipe García
- School of Physical and Mathematical Sciences; Division of Chemistry and Biological Chemistry; Nanyang Technological University; 21 Nanyang Link Singapore
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43
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Symmetric Assembly of a Sterically Encumbered Allyl Complex: Mechanochemical and Solution Synthesis of the Tris(allyl)beryllate, K[BeA′3] (A′ = 1,3-(SiMe3)2C3H3). INORGANICS 2017. [DOI: 10.3390/inorganics5020036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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44
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Stolar T, Batzdorf L, Lukin S, Žilić D, Motillo C, Friščić T, Emmerling F, Halasz I, Užarević K. In Situ Monitoring of the Mechanosynthesis of the Archetypal Metal-Organic Framework HKUST-1: Effect of Liquid Additives on the Milling Reactivity. Inorg Chem 2017; 56:6599-6608. [PMID: 28537382 DOI: 10.1021/acs.inorgchem.7b00707] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We have applied in situ monitoring of mechanochemical reactions by high-energy synchrotron powder X-ray diffraction to study the role of liquid additives on the mechanochemical synthesis of the archetypal metal-organic framework (MOF) HKUST-1, which was one of the first and is still among the most widely investigated MOF materials to be synthesized by solvent-free procedures. It is shown here how the kinetics and mechanisms of the mechanochemical synthesis of HKUST-1 can be influenced by milling conditions and additives, yielding on occasion two new and previously undetected intermediate phases containing a mononuclear copper core, and that finally rearrange to form the HKUST-1 architecture. On the basis of in situ data, we were able to tune and direct the milling reactions toward the formation of these intermediates, which were isolated and characterized by spectroscopic and structural means and their magnetic properties compared to those of HKUST-1. The results have shown that despite the relatively large breadth of analysis available for such widely investigated materials as HKUST-1, in situ monitoring of milling reactions can help in the detection and isolation of new materials and to establish efficient reaction conditions for the mechanochemical synthesis of porous MOFs.
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Affiliation(s)
- Tomislav Stolar
- Ruđer Bošković Institute , Bijenička c. 54, 10000 Zagreb, Croatia
| | - Lisa Batzdorf
- Bundesanstalt für Materialforschung und -prüfung , Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Stipe Lukin
- Ruđer Bošković Institute , Bijenička c. 54, 10000 Zagreb, Croatia
| | - Dijana Žilić
- Ruđer Bošković Institute , Bijenička c. 54, 10000 Zagreb, Croatia
| | - Cristina Motillo
- Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal H3A 0B8, Quebec, Canada
| | - Tomislav Friščić
- Ruđer Bošković Institute , Bijenička c. 54, 10000 Zagreb, Croatia.,Department of Chemistry, McGill University , 801 Sherbrooke Street West, Montreal H3A 0B8, Quebec, Canada
| | - Franziska Emmerling
- Bundesanstalt für Materialforschung und -prüfung , Richard-Willstätter-Straße 11, 12489 Berlin, Germany
| | - Ivan Halasz
- Ruđer Bošković Institute , Bijenička c. 54, 10000 Zagreb, Croatia
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45
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Do JL, Friščić T. Mechanochemistry: A Force of Synthesis. ACS CENTRAL SCIENCE 2017; 3:13-19. [PMID: 28149948 PMCID: PMC5269651 DOI: 10.1021/acscentsci.6b00277] [Citation(s) in RCA: 568] [Impact Index Per Article: 81.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Indexed: 05/04/2023]
Abstract
The past decade has seen a reawakening of solid-state approaches to chemical synthesis, driven by the search for new, cleaner synthetic methodologies. Mechanochemistry, i.e., chemical transformations initiated or sustained by mechanical force, has been advancing particularly rapidly, from a laboratory curiosity to a widely applicable technique that not only enables a cleaner route to chemical transformations but offers completely new opportunities in making and screening for molecules and materials. This Outlook provides a brief overview of the recent achievements and opportunities created by mechanochemistry, including access to materials, molecular targets, and synthetic strategies that are hard or even impossible to access by conventional means.
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Affiliation(s)
- José G. Hernández
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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47
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Mottillo C, Friščić T. Advances in Solid-State Transformations of Coordination Bonds: From the Ball Mill to the Aging Chamber. Molecules 2017; 22:molecules22010144. [PMID: 28106754 PMCID: PMC6155591 DOI: 10.3390/molecules22010144] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 12/24/2016] [Accepted: 12/26/2016] [Indexed: 12/28/2022] Open
Abstract
Controlling the formation of coordination bonds is pivotal to the development of a plethora of functional metal-organic materials, ranging from coordination polymers, metal-organic frameworks (MOFs) to metallodrugs. The interest in and commercialization of such materials has created a need for more efficient, environmentally-friendly routes for making coordination bonds. Solid-state coordination chemistry is a versatile greener alternative to conventional synthesis, offering quantitative yields, enhanced stoichiometric and topological selectivity, access to a wider range of precursors, as well as to molecules and materials not readily accessible in solution or solvothermally. With a focus on mechanochemical, thermochemical and “accelerated aging” approaches to coordination polymers, including pharmaceutically-relevant materials and microporous MOFs, this review highlights the recent advances in solid-state coordination chemistry and techniques for understanding the underlying reaction mechanisms.
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Affiliation(s)
- Cristina Mottillo
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H1P 1W1, Canada.
| | - Tomislav Friščić
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H1P 1W1, Canada.
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48
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Shi YX, Xu K, Clegg JK, Ganguly R, Hirao H, Friščić T, García F. The First Synthesis of the Sterically Encumbered Adamantoid Phosphazane P
4
(N
t
Bu)
6
: Enabled by Mechanochemistry. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605936] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yan X. Shi
- School of Physical and Mathematical Sciences Division of Chemistry and Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
| | - Kai Xu
- School of Physical and Mathematical Sciences Division of Chemistry and Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
| | - Jack K. Clegg
- School of Chemistry and Molecular Biosciences The University of Queensland Brisbane, St Lucia QLD 4072 Australia
| | - Rakesh Ganguly
- School of Physical and Mathematical Sciences Division of Chemistry and Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
| | - Hajime Hirao
- School of Physical and Mathematical Sciences Division of Chemistry and Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
| | - Tomislav Friščić
- Department of Chemistry McGill University 801 Sherbrooke St. W. Montreal QC H3A 0B8 Canada
| | - Felipe García
- School of Physical and Mathematical Sciences Division of Chemistry and Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore Singapore
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49
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Shi YX, Xu K, Clegg JK, Ganguly R, Hirao H, Friščić T, García F. The First Synthesis of the Sterically Encumbered Adamantoid Phosphazane P4 (N(t) Bu)6 : Enabled by Mechanochemistry. Angew Chem Int Ed Engl 2016; 55:12736-40. [PMID: 27539926 DOI: 10.1002/anie.201605936] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 07/29/2016] [Indexed: 01/11/2023]
Abstract
All reported attempts to synthesize the tert-butyl-substituted adamantoid phosph(III)azane P4 (N(t) Bu)6 have failed, leading to the classification of this molecule as inaccessible and a literature example of steric control in chemistry of phosphorus-nitrogen compounds. We now demonstrate that this structure is readily accessible by a solvent-free mechanochemical milling approach, highlighting the importance of mechanochemical reaction environments in evaluating chemical reactivity.
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Affiliation(s)
- Yan X Shi
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Kai Xu
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Jack K Clegg
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, St Lucia, QLD, 4072, Australia
| | - Rakesh Ganguly
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Hajime Hirao
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Tomislav Friščić
- Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal, QC, H3A 0B8, Canada
| | - Felipe García
- School of Physical and Mathematical Sciences, Division of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore.
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50
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Rightmire NR, Hanusa TP. Advances in organometallic synthesis with mechanochemical methods. Dalton Trans 2016; 45:2352-62. [PMID: 26763151 DOI: 10.1039/c5dt03866a] [Citation(s) in RCA: 202] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Solvent-based syntheses have long been normative in all areas of chemistry, although mechanochemical methods (specifically grinding and milling) have been used to good effect for decades in organic, and to a lesser but growing extent, inorganic coordination chemistry. Organometallic synthesis, in contrast, represents a relatively underdeveloped area for mechanochemical research, and the potential benefits are considerable. From access to new classes of unsolvated complexes, to control over stoichiometries that have not been observed in solution routes, mechanochemical (or 'M-chem') approaches have much to offer the synthetic chemist. It has already become clear that removing the solvent from an organometallic reaction can change reaction pathways considerably, so that prediction of the outcome is not always straightforward. This Perspective reviews recent developments in the field, and describes equipment that can be used in organometallic synthesis. Synthetic chemists are encouraged to add mechanochemical methods to their repertoire in the search for new and highly reactive metal complexes and novel types of organometallic transformations.
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Affiliation(s)
- Nicholas R Rightmire
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, USA.
| | - Timothy P Hanusa
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235, USA.
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