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Cortés-Lobo A, Hernández JG. Calcium Carbide (CaC 2) as a C 2-Synthon by Mechanochemistry. Chempluschem 2024:e202400257. [PMID: 38819438 DOI: 10.1002/cplu.202400257] [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: 04/08/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/01/2024]
Abstract
Mechanochemical reactions by ball milling have opened new avenues in chemical synthesis. Particularly, mechanochemistry has facilitated the reaction of insoluble materials to simplify stablished synthetic protocols and develop new ones. One notable application involves the use of calcium carbide (CaC2) as a C2-synthon through mechanochemistry, which has offered a more practical alternative to incorporate C2-units compared to the conventional use of highly flammable gaseous acetylene. For example, by ball milling, the acetylenic anions [C2]2- found in CaC2 have been harnessed for the synthesis of diverse functional carbon materials as well as discrete organic molecules. This Concept aims to contribute to the conceptualization of this innovative approach while highlighting both its advantages and the challenges inherent in the use of CaC2.
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Affiliation(s)
- Alejandro Cortés-Lobo
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - José G Hernández
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
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2
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Ardila-Fierro KJ, Hernández JG. Intermediates in Mechanochemical Reactions. Angew Chem Int Ed Engl 2024; 63:e202317638. [PMID: 38179857 DOI: 10.1002/anie.202317638] [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: 11/19/2023] [Revised: 12/31/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
Mechanochemical reactions offer methodological and environmental advantages for chemical synthesis, constantly attracting attention within the scientific community. Besides unmistakable sustainability advantages, the conditions under which mechanochemical reactions occur, namely solventless conditions, sometimes facilitate the isolation of otherwise labile or inaccessible products. Despite these advantages, limited knowledge exists regarding the mechanisms of these reactions and the types of intermediates involved. Nevertheless, in an expanding number of cases, ex situ and in situ monitoring techniques have allowed for the observation, characterization, and isolation of reaction intermediates in mechanochemical transformations. In this Minireview, we present a series of examples in which reactive intermediates have been detected in mechanochemical reactions spanning organic, organometallic, inorganic, and materials chemistry. Many of these intermediates were stabilized by non-covalent interactions, which played a pivotal role in guiding the chemical transformations. We believe that by uncovering and understanding such instances, the growing mechanochemistry community could find novel opportunities in catalysis and discover new mechanochemical reactions while achieving simplification in chemical reaction design.
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Affiliation(s)
- Karen J Ardila-Fierro
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
| | - José G Hernández
- Grupo Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 70 No 52-21, Medellín, Colombia
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3
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Silva IDA, Bartalucci E, Bolm C, Wiegand T. Opportunities and Challenges in Applying Solid-State NMR Spectroscopy in Organic Mechanochemistry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304092. [PMID: 37407000 DOI: 10.1002/adma.202304092] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/12/2023] [Accepted: 06/28/2023] [Indexed: 07/07/2023]
Abstract
In recent years it is shown that mechanochemical strategies can be beneficial in directed conversions of organic compounds. Finding new reactions proved difficult, and due to the lack of mechanistic understanding of mechanochemical reaction events, respective efforts have mostly remained empirical. Spectroscopic techniques are crucial in shedding light on these questions. In this overview, the opportunities and challenges of solid-state nuclear magnetic resonance (NMR) spectroscopy in the field of organic mechanochemistry are discussed. After a brief discussion of the basics of high-resolution solid-state NMR under magic-angle spinning (MAS) conditions, seven opportunities for solid-state NMR in the field of organic mechanochemistry are presented, ranging from ex situ approaches to structurally elucidated reaction products obtained by milling to the potential and limitations of in situ solid-state NMR approaches. Particular strengths of solid-state NMR, for instance in differentiating polymorphs, in NMR-crystallographic structure-determination protocols, or in detecting weak noncovalent interactions in molecular-recognition events employing proton-detected solid-state NMR experiments at fast MAS frequencies, are discussed.
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Affiliation(s)
| | - Ettore Bartalucci
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim/Ruhr, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Thomas Wiegand
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim/Ruhr, Germany
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
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4
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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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5
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Wohlgemuth M, Schmidt S, Mayer M, Pickhardt W, Grätz S, Borchardt L. Milling Medium-Free Suzuki Coupling by Direct Mechanocatalysis: From Mixer Mills to Resonant Acoustic Mixers. Chemistry 2023; 29:e202301714. [PMID: 37503657 DOI: 10.1002/chem.202301714] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 07/29/2023]
Abstract
Here we describe the development of a sustainable and cost-effective approach for catalytic cross-coupling reactions in mechanochemistry. It is found that the substrate's impact with the vessel wall alone is sufficient to initiate the reaction, thus indicating that milling balls function primarily as a mixing agent for direct mechanocatalytic Suzuki coupling. The absence of milling balls can be offset by adjusting the rheology using liquid-assisted grinding (LAG). The LAG sweet spot of 0.25 μL mg-1 is confirmed for both resonance acoustic mixers (RAMs) and ball-free mixer mills, and is higher than in the presence of milling balls. RAMs exhibit excellent performance in the Suzuki reaction, achieving yields of 90 % after 60 min and complete conversion after 90 min. The longevity of the milling vessel is significantly improved in a RAM, allowing for at least 20 reactions without deterioration.
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Affiliation(s)
- Maximilian Wohlgemuth
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße150, 44801, Bochum, Germany
| | - Sarah Schmidt
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße150, 44801, Bochum, Germany
| | - Maike Mayer
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße150, 44801, Bochum, Germany
| | - Wilm Pickhardt
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße150, 44801, Bochum, Germany
| | - Sven Grätz
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße150, 44801, Bochum, Germany
| | - Lars Borchardt
- Inorganic Chemistry I, Ruhr-Universität Bochum, Universitätsstraße150, 44801, Bochum, Germany
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6
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Reynes JF, Isoni V, García F. Tinkering with Mechanochemical Tools for Scale Up. Angew Chem Int Ed Engl 2023; 62:e202300819. [PMID: 37114517 DOI: 10.1002/anie.202300819] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 04/29/2023]
Abstract
Mechanochemistry provides an environmentally benign platform to develop more sustainable chemical processes by limiting raw materials, energy use, and waste generation while using physically smaller equipment. A continuously growing research community has steadily showcased examples of beneficial mechanochemistry applications at both the laboratory and the preparative scale. In contrast to solution-based chemistry, mechanochemical processes have not yet been standardized, and thus scaling up is still a nascent discipline. The purpose of this Minireview is to highlight similarities, differences and challenges of the various approaches that have been successfully applied for a range of chemical applications at various scales. We hope to provide a discussion starting point for those interested in further developing mechanochemical processes for commercial use and/or industrialisation.
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Affiliation(s)
- Javier F Reynes
- Departamento de Química Orgánica e Inorgánica Facultad de Química, Universidad de Oviedo, Av. Julián Clavería, 8, 33006, Oviedo, Asturias, Spain
| | - Valerio Isoni
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), 1, Pesek Road, Jurong Island, Singapore
| | - Felipe García
- Departamento de Química Orgánica e Inorgánica Facultad de Química, Universidad de Oviedo, Av. Julián Clavería, 8, 33006, Oviedo, Asturias, Spain
- School of Chemistry, Monash University Clayton, Victoria, 3800, Australia
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7
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Lennox CB, Borchers TH, Gonnet L, Barrett CJ, Koenig SG, Nagapudi K, Friščić T. Direct mechanocatalysis by resonant acoustic mixing (RAM). Chem Sci 2023; 14:7475-7481. [PMID: 37449073 PMCID: PMC10337763 DOI: 10.1039/d3sc01591b] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/17/2023] [Indexed: 07/18/2023] Open
Abstract
We demonstrate the use of a metal surface to directly catalyse copper-catalysed alkyne-azide click-coupling (CuAAC) reactions under the conditions of Resonant Acoustic Mixing (RAM) - a recently introduced and scalable mechanochemical methodology that uniquely eliminates the need for bulk solvent, as well as milling media. By using a simple copper coil as a catalyst, this work shows that direct mechanocatalysis can occur in an impact-free environment, relying solely on high-speed mixing of reagents against a metal surface, without the need for specially designed milling containers and media. By introducing an experimental setup that enables real-time Raman spectroscopy monitoring of RAM processes, we demonstrate 0th-order reaction kinetics for several selected CuAAC reactions, supporting surface-based catalysis. The herein presented RAM-based direct mechanocatalysis methodology is simple, enables the effective one-pot, two-step synthesis of triazoles via a combination of benzyl azide formation and CuAAC reactions on a wide scope of reagents, provides control over reaction stoichiometry that is herein shown to be superior to that seen in solution or by using more conventional CuCl catalyst, and is applied for simple gram-scale synthesis of the anticonvulsant drug Rufinamide.
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Affiliation(s)
- Cameron B Lennox
- School of Chemistry, University of Birmingham Birmingham B15 2TT UK
- Department of Chemistry, McGill University 801 Sherbrooke St. W. Montreal Quebec H3H 0B8 Canada
| | - Tristan H Borchers
- School of Chemistry, University of Birmingham Birmingham B15 2TT UK
- Department of Chemistry, McGill University 801 Sherbrooke St. W. Montreal Quebec H3H 0B8 Canada
| | - Lori Gonnet
- School of Chemistry, University of Birmingham Birmingham B15 2TT UK
- Department of Chemistry, McGill University 801 Sherbrooke St. W. Montreal Quebec H3H 0B8 Canada
| | - Christopher J Barrett
- Department of Chemistry, McGill University 801 Sherbrooke St. W. Montreal Quebec H3H 0B8 Canada
| | - Stefan G Koenig
- Small Molecule Pharmaceutical Sciences, Genentech Inc. One DNA Way South San Francisco CA 94080 USA
| | - Karthik Nagapudi
- Small Molecule Pharmaceutical Sciences, Genentech Inc. One DNA Way South San Francisco CA 94080 USA
| | - Tomislav Friščić
- School of Chemistry, University of Birmingham Birmingham B15 2TT UK
- Department of Chemistry, McGill University 801 Sherbrooke St. W. Montreal Quebec H3H 0B8 Canada
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8
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Madanayake SN, Manipura A, Thakuria R, Adassooriya NM. Opportunities and Challenges in Mechanochemical Cocrystallization toward Scaled-Up Pharmaceutical Manufacturing. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Sithmi Nimashi Madanayake
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Aruna Manipura
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Ranjit Thakuria
- Department of Chemistry, Gauhati University, Guwahati 781014, Assam, India
| | - Nadeesh M. Adassooriya
- Department of Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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9
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Mazzeo PP, Lampronti GI, Michalchuk AAL, Belenguer AM, Bacchi A, Emmerling F. Accurate extrinsic and intrinsic peak broadening modelling for time-resolved in situ ball milling reactions via synchrotron powder X-ray diffraction. Faraday Discuss 2023; 241:289-305. [PMID: 36173263 DOI: 10.1039/d2fd00104g] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The debate on the mechanisms which underpin mechanochemical reactions via ball mill grinding is still open. Our ability to accurately measure the microstructural (crystal size and microstrain) evolution of materials under milling conditions as well as their phase composition as a function of time is key to the in-depth understanding of the kinetics and driving forces of mechanochemical transformations. Furthermore, all ball milling reactions end with a steady state or milling equilibrium - represented by a specific phase composition and relative microstructure - that does not change as long as the milling conditions are maintained. The use of a standard sample is essential to determine the instrumental contribution to the X-ray powder diffraction (XRPD) peak broadening for time-resolved in situ (TRIS) monitoring of mechanochemical reactions under in operando conditions. Using TRIS-XRPD on a ball milling setup, coupled with low-energy synchrotron radiation, we investigated different data acquisition and analysis strategies on a silicon standard powder. The diffraction geometry and the microstructural evolution of the standard itself have been studied to model the instrumental contribution to XRPD peak broadening throughout the grinding activity. Previously proposed functions are here challenged and further developed. Importantly, we show that minor drifts of the jar position do not affect the instrumental resolution function significantly. We here report and discuss the results of such investigations and their application to TRIS-XRPD datasets of inorganic and organic ball mill grinding reactions.
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Affiliation(s)
- Paolo P Mazzeo
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area Delle Scienze 17/A, Parma 43124, Italy. .,Biopharmanet-TEC, University of Parma, Parco Area Delle Scienze 27/A, Parma 43124, Italy
| | - Giulio I Lampronti
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Rd, Cambridge CB3 0FS, UK.
| | - Adam A L Michalchuk
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, D-12489 Berlin, Germany
| | - Ana M Belenguer
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
| | - Alessia Bacchi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area Delle Scienze 17/A, Parma 43124, Italy. .,Biopharmanet-TEC, University of Parma, Parco Area Delle Scienze 27/A, Parma 43124, Italy
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Straße 11, D-12489 Berlin, Germany
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10
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Boldyreva E. Spiers Memorial Lecture: Mechanochemistry, tribochemistry, mechanical alloying - retrospect, achievements and challenges. Faraday Discuss 2023; 241:9-62. [PMID: 36519434 DOI: 10.1039/d2fd00149g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The paper presents a view on the achievements, challenges and prospects of mechanochemistry. The extensive reference list can serve as a good entry point to a plethora of mechanochemical literature.
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Affiliation(s)
- Elena Boldyreva
- Boreskov Institute of Catalysis SB RAS & Novosibirsk State University, Novosibirsk, Russian Federation.
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11
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Gonnet L, Borchers TH, Lennox CB, Vainauskas J, Teoh Y, Titi HM, Barrett CJ, Koenig SG, Nagapudi K, Friščić T. The " η-sweet-spot" ( ηmax) in liquid-assisted mechanochemistry: polymorph control and the role of a liquid additive as either a catalyst or an inhibitor in resonant acoustic mixing (RAM). Faraday Discuss 2023; 241:128-149. [PMID: 36239309 DOI: 10.1039/d2fd00131d] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Resonant acoustic mixing (RAM) offers a simple, efficient route for mechanochemical synthesis in the absence of milling media or bulk solvents. Here, we show the use of RAM to conduct the copper-catalysed coupling of sulfonamides and carbodiimides. This coupling was previously reported to take place only by mechanochemical ball milling, while in conventional solution environments it is not efficient, or does not take place at all. The results demonstrate RAM as a suitable methodology to conduct reactions previously accessed only by ball milling and provide a detailed, systematic overview of how the amount of liquid additive, measured by the ratio of liquid volume to weight of reactants (η, in μL mg-1), can affect the course of a mechanochemical reaction and the polymorphic composition of its product. Switching from ball milling to RAM allowed for the discovery of a new polymorph of the model sulfonylguanidine obtained by catalytic coupling of di(cyclohexyl)carbodiimide (DCC) and p-toluenesulfonamide, and the ability to control reaction temperature in RAM enabled in situ control of the polymorphic behaviour of this nascent product. We show that the reaction conversion for a given reaction time does not change monotonically but, instead, achieves a maximum for a well-defined η-value. This "η-sweet-spot" of conversion is herein designated ηmax. The herein explored reactions demonstrate sensitivity to η on the order of 0.01 μL mg-1, which corresponds to an amount of liquid additive below 5 mol% compared to the reactants, and is at least one to two orders of magnitude lower than the η-value typically considered in the design of liquid-assisted ball milling mechanochemical reactions. Such sensitivity suggests that strategies to optimise liquid-assisted mechanochemical reactions should systematically evaluate η-values at increments of 0.01 μL mg-1, or even finer. At η-values other than ηmax the reaction conversion drops off, demonstrating that the same liquid additive can act either as a catalyst or an inhibitor of a mechanochemical reaction, depending on the amount.
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Affiliation(s)
- Lori Gonnet
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada.
| | - Tristan H Borchers
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada.
| | - Cameron B Lennox
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada.
| | - Jogirdas Vainauskas
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada.
| | - Yong Teoh
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada.
| | - Hatem M Titi
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada.
| | - Christopher J Barrett
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada.
| | - Stefan G Koenig
- Small Molecule Pharmaceutical Sciences, Genentech Inc., One DNA Way, South San Francisco, CA 94080, USA.
| | - Karthik Nagapudi
- Small Molecule Pharmaceutical Sciences, Genentech Inc., One DNA Way, South San Francisco, CA 94080, USA.
| | - Tomislav Friščić
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada. .,School of Chemistry, University of Birmingham, Edgbaston, B15 2TT, UK.
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12
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Martinez V, Stolar T, Karadeniz B, Brekalo I, Užarević K. Advancing mechanochemical synthesis by combining milling with different energy sources. Nat Rev Chem 2022; 7:51-65. [PMID: 37117822 DOI: 10.1038/s41570-022-00442-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2022] [Indexed: 11/23/2022]
Abstract
Owing to its efficiency and unique reactivity, mechanochemical processing of bulk solids has developed into a powerful tool for the synthesis and transformation of various classes of materials. Nevertheless, mechanochemistry is primarily based on simple techniques, such as milling in comminution devices. Recently, mechanochemical reactivity has started being combined with other energy sources commonly used in solution-based chemistry. Milling under controlled temperature, light irradiation, sound agitation or electrical impulses in newly developed experimental setups has led to reactions not achievable by conventional mechanochemical processing. This Perspective describes these unique reactivities and the advances in equipment tailored to synthetic mechanochemistry. These techniques - thermo-mechanochemistry, sono-mechanochemistry, electro-mechanochemistry and photo-mechanochemistry - represent a notable advance in modern mechanochemistry and herald a new level of solid-state reactivity: mechanochemistry 2.0.
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13
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Zhang S, Zhan L, Zhang Y, Hou J, Li B. Continuous flow resonance acoustic mixing technology: a novel and efficient strategy for preparation of nano energetic materials. FIREPHYSCHEM 2022. [DOI: 10.1016/j.fpc.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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14
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Michalchuk AAL, Emmerling F. Time-Resolved In Situ Monitoring of Mechanochemical Reactions. Angew Chem Int Ed Engl 2022; 61:e202117270. [PMID: 35128778 PMCID: PMC9400867 DOI: 10.1002/anie.202117270] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Indexed: 12/31/2022]
Abstract
Mechanochemical transformations offer environmentally benign synthesis routes, whilst enhancing both the speed and selectivity of reactions. In this regard, mechanochemistry promises to transform the way in which chemistry is done in both academia and industry but is greatly hindered by a current lack of mechanistic understanding. The continued development and use of time-resolved in situ (TRIS) approaches to monitor mechanochemical reactions provides a new dimension to elucidate these fascinating transformations. We here discuss recent trends in method development that have pushed the boundaries of mechanochemical research. New features of mechanochemical reactions obtained by TRIS techniques are subsequently discussed, which sheds light on how different TRIS approaches have been used. Emphasis is placed on the strength of combining complementary techniques. Finally, we outline our views on the potential of TRIS methods in mechanochemical research, towards establishing a new, environmentally benign paradigm in the chemical sciences.
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Affiliation(s)
- Adam A. L. Michalchuk
- BAM Federal Institute for Materials Research and TestingRichard-Willstätter-Strasse1112489BerlinGermany
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and TestingRichard-Willstätter-Strasse1112489BerlinGermany
- Department of ChemistryHumboldt-Universität zu BerlinBrook-Taylor-Strasse 212489BerlinGermany
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15
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Michalchuk AAL, Emmerling F. Zeitaufgelöste In‐Situ‐Untersuchungen von mechanochemischen Reaktionen. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Adam A. L. Michalchuk
- BAM Federal Institute for Materials Research and Testing Richard-Willstätter-Straße 11 12489 Berlin Deutschland
| | - Franziska Emmerling
- BAM Federal Institute for Materials Research and Testing Richard-Willstätter-Straße 11 12489 Berlin Deutschland
- Department of Chemistry Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Deutschland
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16
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Gonnet L, Lennox CB, Do JL, Malvestiti I, Koenig SG, Nagapudi K, Friščić T. Metal-Catalyzed Organic Reactions by Resonant Acoustic Mixing. Angew Chem Int Ed Engl 2022; 61:e202115030. [PMID: 35138018 DOI: 10.1002/anie.202115030] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Indexed: 01/03/2023]
Abstract
We demonstrate catalytic organic synthesis by Resonant Acoustic Mixing (RAM): a mechanochemical methodology that does not require bulk solvent or milling media. Using as model reactions ruthenium-catalyzed ring-closing metathesis and copper-catalyzed sulfonamide-isocyanate coupling, RAM mechanosynthesis is shown to be faster, operationally simpler than conventional ball-milling, while also providing the first example of a mechanochemical strategy for ruthenium-catalyzed ene-yne metathesis. Reactions by RAM are readily and directly scaled-up without any significant changes in reaction conditions, as shown by the straightforward 200-fold scaling-up of the synthesis of the antidiabetic drug Tolbutamide, from hundreds of milligrams directly to 30 grams.
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Affiliation(s)
- Lori Gonnet
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada
| | - Cameron B Lennox
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada
| | - Jean-Louis Do
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada
| | - Ivani Malvestiti
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Av. Jornalista Aníbal Fernandes, s/n, 50.740-560, Recife, Brazil
| | - Stefan G Koenig
- Small Molecule Pharmaceutical Sciences, Genentech, Inc., One DNA Way, South San Francisco, CA 94080, USA
| | - Karthik Nagapudi
- Small Molecule Pharmaceutical Sciences, Genentech, Inc., One DNA Way, South San Francisco, CA 94080, USA
| | - Tomislav Friščić
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3H 0B8, Canada
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17
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Gonnet L, Lennox CB, Do J, Malvestiti I, Koenig SG, Nagapudi K, Friščić T. Metal‐Catalyzed Organic Reactions by Resonant Acoustic Mixing**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Lori Gonnet
- Department of Chemistry McGill University 801 Sherbrooke St. West Montreal QC, H3H 0B8 Canada
| | - Cameron B. Lennox
- Department of Chemistry McGill University 801 Sherbrooke St. West Montreal QC, H3H 0B8 Canada
| | - Jean‐Louis Do
- Department of Chemistry McGill University 801 Sherbrooke St. West Montreal QC, H3H 0B8 Canada
| | - Ivani Malvestiti
- Departamento de Química Fundamental Universidade Federal de Pernambuco Av. Jornalista Aníbal Fernandes, s/n 50.740-560 Recife Brazil
| | - Stefan G. Koenig
- Small Molecule Pharmaceutical Sciences Genentech, Inc. One DNA Way South San Francisco CA 94080 USA
| | - Karthik Nagapudi
- Small Molecule Pharmaceutical Sciences Genentech, Inc. One DNA Way South San Francisco CA 94080 USA
| | - Tomislav Friščić
- Department of Chemistry McGill University 801 Sherbrooke St. West Montreal QC, H3H 0B8 Canada
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18
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Wright CJ, Wilkinson PJ, Gaulter SE, Fossey D, Burn AO, Gill PP. Is ResonantAcoustic Mixing® (RAM) a Game Changer for Manufacturing Solid Composite Rocket Propellants? PROPELLANTS EXPLOSIVES PYROTECHNICS 2022. [DOI: 10.1002/prep.202100146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Peter J. Wilkinson
- Centre for Defence Chemistry Cranfield University Defence Academy of the United Kingdom Shrivenham SN6 8LA UK
| | - Sally E. Gaulter
- Centre for Defence Chemistry Cranfield University Defence Academy of the United Kingdom Shrivenham SN6 8LA UK
| | - Donald Fossey
- The Falcon Project Ltd Westcott, Aylesbury HP18 0XB UK
| | | | - Philip P. Gill
- ROXEL (UK Rocket Motors) Ltd Summerfield Ln Kidderminster DY11 7RZ UK
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19
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Lennox CB, Do JL, Crew JG, Arhangelskis M, Titi HM, Howarth AJ, Farha OK, Friščić T. Simplifying and expanding the scope of boron imidazolate framework (BIF) synthesis using mechanochemistry. Chem Sci 2021; 12:14499-14506. [PMID: 34881001 PMCID: PMC8580121 DOI: 10.1039/d1sc03665c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/13/2021] [Indexed: 11/21/2022] Open
Abstract
Mechanochemistry enables rapid access to boron imidazolate frameworks (BIFs), including ultralight materials based on Li and Cu(i) nodes, as well as new, previously unexplored systems based on Ag(i) nodes. Compared to solution methods, mechanochemistry is faster, provides materials with improved porosity, and replaces harsh reactants (e.g. n-butylithium) with simpler and safer oxides, carbonates or hydroxides. Periodic density-functional theory (DFT) calculations on polymorphic pairs of BIFs based on Li+, Cu+ and Ag+ nodes reveals that heavy-atom nodes increase the stability of the open SOD-framework relative to the non-porous dia-polymorph.
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Affiliation(s)
- Cameron B Lennox
- Department of Chemistry, McGill University 801 Sherbrooke St. W H3A 0B8 Montreal Canada .,FRQNT Quebec Centre for Advanced Materials (QCAM/CQMF) Montreal Canada
| | - Jean-Louis Do
- Department of Chemistry, McGill University 801 Sherbrooke St. W H3A 0B8 Montreal Canada .,FRQNT Quebec Centre for Advanced Materials (QCAM/CQMF) Montreal Canada
| | - Joshua G Crew
- Department of Chemistry, McGill University 801 Sherbrooke St. W H3A 0B8 Montreal Canada .,School of Chemistry, Cardiff University Main Building. Park Place Cardiff CF10 3AT UK
| | - Mihails Arhangelskis
- Department of Chemistry, McGill University 801 Sherbrooke St. W H3A 0B8 Montreal Canada .,Faculty of Chemistry, University of Warsaw 1 Pasteura St 02-093 Warsaw Poland
| | - Hatem M Titi
- Department of Chemistry, McGill University 801 Sherbrooke St. W H3A 0B8 Montreal Canada .,FRQNT Quebec Centre for Advanced Materials (QCAM/CQMF) Montreal Canada
| | - Ashlee J Howarth
- FRQNT Quebec Centre for Advanced Materials (QCAM/CQMF) Montreal Canada.,Department of Biochemistry and Chemistry, Concordia University 7141 Sherbrooke St. W H4B 1R6 Montreal Canada.,International Institute for Nanotechnology, Department of Chemistry, Northwestern University 2145 Sheridan Road 60208 Evanston Il USA
| | - Omar K Farha
- International Institute for Nanotechnology, Department of Chemistry, Northwestern University 2145 Sheridan Road 60208 Evanston Il USA
| | - Tomislav Friščić
- Department of Chemistry, McGill University 801 Sherbrooke St. W H3A 0B8 Montreal Canada .,FRQNT Quebec Centre for Advanced Materials (QCAM/CQMF) Montreal Canada
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20
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Changing the game of time resolved X-ray diffraction on the mechanochemistry playground by downsizing. Nat Commun 2021; 12:6134. [PMID: 34675198 PMCID: PMC8531352 DOI: 10.1038/s41467-021-26264-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/17/2021] [Indexed: 11/27/2022] Open
Abstract
Time resolved in situ (TRIS) monitoring has revolutionised the study of mechanochemical transformations but has been limited by available data quality. Here we report how a combination of miniaturised grinding jars together with innovations in X-ray powder diffraction data collection and state-of-the-art analysis strategies transform the power of TRIS synchrotron mechanochemical experiments. Accurate phase compositions, comparable to those obtained by ex situ measurements, can be obtained with small sample loadings. Moreover, microstructural parameters (crystal size and microstrain) can be also determined with high confidence. This strategy applies to all chemistries, is readily implemented, and yields high-quality diffraction data even using a low energy synchrotron source. This offers a direct avenue towards the mechanochemical investigation of reactions comprising scarce, expensive, or toxic compounds. Our strategy is applied to model systems, including inorganic, metal-organic, and organic mechanosyntheses, resolves previously misinterpreted mechanisms in mechanochemical syntheses, and promises broad, new directions for mechanochemical research.
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21
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Guo M, Sun X, Chen J, Cai T. Pharmaceutical cocrystals: A review of preparations, physicochemical properties and applications. Acta Pharm Sin B 2021; 11:2537-2564. [PMID: 34522597 PMCID: PMC8424375 DOI: 10.1016/j.apsb.2021.03.030] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/22/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022] Open
Abstract
Pharmaceutical cocrystals are multicomponent systems in which at least one component is an active pharmaceutical ingredient and the others are pharmaceutically acceptable ingredients. Cocrystallization of a drug substance with a coformer is a promising and emerging approach to improve the performance of pharmaceuticals, such as solubility, dissolution profile, pharmacokinetics and stability. This review article presents a comprehensive overview of pharmaceutical cocrystals, including preparation methods, physicochemical properties, and applications. Furthermore, some examples of drug cocrystals are highlighted to illustrate the effect of crystal structures on the various aspects of active pharmaceutical ingredients, such as physical stability, chemical stability, mechanical properties, optical properties, bioavailability, sustained release and therapeutic effect. This review will provide guidance for more efficient design and manufacture of pharmaceutical cocrystals with desired physicochemical properties and applications.
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22
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Kendall T, Stratford S, Patterson AR, Lunt RA, Cruickshank D, Bonnaud T, Scott CD. An industrial perspective on co-crystals: Screening, identification and development of the less utilised solid form in drug discovery and development. PROGRESS IN MEDICINAL CHEMISTRY 2021; 60:345-442. [PMID: 34147205 DOI: 10.1016/bs.pmch.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Active pharmaceutical ingredients are commonly marketed as a solid form due to ease of transport, storage and administration. In the design of a drug formulation, the selection of the solid form is incredibly important and is traditionally based on what polymorphs, hydrates or salts are available for that compound. Co-crystals, another potential solid form available, are currently not as readily considered as a viable solid form for the development process. Even though co-crystals are gaining an ever-increasing level of interest within the pharmaceutical community, their acceptance and application is still not as standard as other solid forms such as the ubiquitous pharmaceutical salt and stabilised amorphous formulations. Presented in this chapter is information that would allow for a co-crystal screen to be planned and conducted as well as scaled up using solution and mechanochemistry based methods commonly employed in both the literature and industry. Also presented are methods for identifying the formation of a co-crystal using a variety of analytical techniques as well as the importance of confirming the formation of co-crystals from a legal perspective and demonstrating the legal precedent by looking at co-crystalline products already on the market. The benefits of co-crystals have been well established, and presented in this chapter are a selection of examples which best exemplify their potential. The goal of this chapter is to increase the understanding of co-crystals and how they may be successfully exploited in early stage development.
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Affiliation(s)
- Thomas Kendall
- Technobis Crystallization Systems, Alkmaar, The Netherlands.
| | - Sam Stratford
- Johnson Matthey, Pharmorphix, Cambridge, United Kingdom
| | | | - Ruth A Lunt
- Johnson Matthey, Pharmorphix, Cambridge, United Kingdom
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23
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Michalchuk AAL, Boldyreva EV, Belenguer AM, Emmerling F, Boldyrev VV. Tribochemistry, Mechanical Alloying, Mechanochemistry: What is in a Name? Front Chem 2021; 9:685789. [PMID: 34164379 PMCID: PMC8216082 DOI: 10.3389/fchem.2021.685789] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/03/2021] [Indexed: 02/05/2023] Open
Abstract
Over the decades, the application of mechanical force to influence chemical reactions has been called by various names: mechanochemistry, tribochemistry, mechanical alloying, to name but a few. The evolution of these terms has largely mirrored the understanding of the field. But what is meant by these terms, why have they evolved, and does it really matter how a process is called? Which parameters should be defined to describe unambiguously the experimental conditions such that others can reproduce the results, or to allow a meaningful comparison between processes explored under different conditions? Can the information on the process be encoded in a clear, concise, and self-explanatory way? We address these questions in this Opinion contribution, which we hope will spark timely and constructive discussion across the international mechanochemical community.
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Affiliation(s)
| | - Elena V. Boldyreva
- Novosibirsk State University, Novosibirsk, Russia
- Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
| | - Ana M. Belenguer
- Yusef Hamied Department of Chemistry, University of Cambridge, Cambridge, United Kingdom
| | | | - Vladimir V. Boldyrev
- Novosibirsk State University, Novosibirsk, Russia
- Voevodski Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk, Russia
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24
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Solares-Briones M, Coyote-Dotor G, Páez-Franco JC, Zermeño-Ortega MR, de la O Contreras CM, Canseco-González D, Avila-Sorrosa A, Morales-Morales D, Germán-Acacio JM. Mechanochemistry: A Green Approach in the Preparation of Pharmaceutical Cocrystals. Pharmaceutics 2021; 13:790. [PMID: 34070646 PMCID: PMC8228148 DOI: 10.3390/pharmaceutics13060790] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 11/17/2022] Open
Abstract
Mechanochemistry is considered an alternative attractive greener approach to prepare diverse molecular compounds and has become an important synthetic tool in different fields (e.g., physics, chemistry, and material science) since is considered an ecofriendly procedure that can be carried out under solvent free conditions or in the presence of minimal quantities of solvent (catalytic amounts). Being able to substitute, in many cases, classical solution reactions often requiring significant amounts of solvents. These sustainable methods have had an enormous impact on a great variety of chemistry fields, including catalysis, organic synthesis, metal complexes formation, preparation of multicomponent pharmaceutical solid forms, etc. In this sense, we are interested in highlighting the advantages of mechanochemical methods on the obtaining of pharmaceutical cocrystals. Hence, in this review, we describe and discuss the relevance of mechanochemical procedures in the formation of multicomponent solid forms focusing on pharmaceutical cocrystals. Additionally, at the end of this paper, we collect a chronological survey of the most representative scientific papers reporting the mechanochemical synthesis of cocrystals.
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Affiliation(s)
- Mizraín Solares-Briones
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica-UNAM, Instituto Nacional de Ciencias Médicas y Nutrición SZ, Ciudad de México, C.P. 14000, Mexico; (M.S.-B.); (G.C.-D.); (J.C.P.-F.)
| | - Guadalupe Coyote-Dotor
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica-UNAM, Instituto Nacional de Ciencias Médicas y Nutrición SZ, Ciudad de México, C.P. 14000, Mexico; (M.S.-B.); (G.C.-D.); (J.C.P.-F.)
| | - José C. Páez-Franco
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica-UNAM, Instituto Nacional de Ciencias Médicas y Nutrición SZ, Ciudad de México, C.P. 14000, Mexico; (M.S.-B.); (G.C.-D.); (J.C.P.-F.)
| | - Miriam R. Zermeño-Ortega
- Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario No. 1, Nuevo Campus Universitario, Apdo. Postal 1552, Chihuahua, C.P. 31125, Mexico; (M.R.Z.-O.); (C.M.d.l.OC.)
| | - Carmen Myriam de la O Contreras
- Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario No. 1, Nuevo Campus Universitario, Apdo. Postal 1552, Chihuahua, C.P. 31125, Mexico; (M.R.Z.-O.); (C.M.d.l.OC.)
| | - Daniel Canseco-González
- CONACYT-Laboratorio Nacional de Investigación y Servicio Agroalimentario y Forestal, Universidad Autónoma de Chapingo, Texcoco de Mora, C.P. 56230, Mexico;
| | - Alcives Avila-Sorrosa
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Departamento de Química Orgánica, Carpio y Plan de Ayala S/N, Colonia Santo Tomás, Ciudad de México, C.P. 11340, Mexico;
| | - David Morales-Morales
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México, C.P. 04510, Mexico
| | - Juan M. Germán-Acacio
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica-UNAM, Instituto Nacional de Ciencias Médicas y Nutrición SZ, Ciudad de México, C.P. 14000, Mexico; (M.S.-B.); (G.C.-D.); (J.C.P.-F.)
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25
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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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26
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Lapshin OV, Boldyreva EV, Boldyrev VV. Role of Mixing and Milling in Mechanochemical Synthesis (Review). RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621030116] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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27
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Ngilirabanga JB, Samsodien H. Pharmaceutical co‐crystal: An alternative strategy for enhanced physicochemical properties and drug synergy. NANO SELECT 2021. [DOI: 10.1002/nano.202000201] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
| | - Halima Samsodien
- School of Pharmacy, Faculty of Science University of the Western Cape Bellville South Africa
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28
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The Effect of the Modification of Mica by High-Temperature Mechanochemistry on the Anticorrosion Performance of Epoxy Coatings. Polymers (Basel) 2021; 13:polym13030378. [PMID: 33530413 PMCID: PMC7865238 DOI: 10.3390/polym13030378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 02/02/2023] Open
Abstract
Epoxy resin was directly grafted onto the surface of mica powder by high-temperature mechanical ball milling. This method was used to achieve a chemical reaction between the epoxy resin and mica that cannot be carried out under conventional circumstances. The results show that an epoxy resin layer with a thickness of approximately 10 nm formed on the surface of the mica. This modified mica filler exhibited a significant change in its hydrophilic properties. The dispersion of mica and its compatibility with organic coatings also significantly improved. In addition, the modified mica filler was added to the epoxy coating. The improvement of the coating's compactness and toughness is the reason for its anti-corrosion performance enhancement.
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29
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Štrukil V. Highly Efficient Solid-State Hydrolysis of Waste Polyethylene Terephthalate by Mechanochemical Milling and Vapor-Assisted Aging. CHEMSUSCHEM 2021; 14:330-338. [PMID: 32986929 DOI: 10.1002/cssc.202002124] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/25/2020] [Indexed: 06/11/2023]
Abstract
Despite significant methodological and technological advancements in chemical recycling of synthetic polymers, an efficient and quantitative conversion of post-consumer polyethylene terephthalate (PET) into terephthalic acid (TPA) under ambient conditions of temperature and pressure still remains a challenge. In this respect, the application of mechanochemistry and multiple advantages offered by solid-state ball milling and vapor-assisted aging have remained insufficiently explored. To further expand their potential, the implementation of organic solvent-free milling as a superior methodology for successful alkaline depolymerization of waste PET (e. g., bottles and textile) into TPA monomer in near-quantitative yields was reported herein. The solid-state alkaline PET hydrolysis was also shown to proceed in excellent yields under aging conditions in humid environment or in the presence of alcohol vapors. Moreover, the performance of mechanochemical ball milling and aging in the gram-scale depolymerization of PET into TPA was demonstrated.
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Affiliation(s)
- Vjekoslav Štrukil
- Laboratory for Physical Organic Chemistry, Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia
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30
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Dudek MK, Śniechowska J, Wróblewska A, Kaźmierski S, Potrzebowski MJ. Cocrystals "Divorce and Marriage": When a Binary System Meets an Active Multifunctional Synthon in a Ball Mill. Chemistry 2020; 26:13264-13273. [PMID: 32567718 DOI: 10.1002/chem.202002238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/17/2020] [Indexed: 11/06/2022]
Abstract
A well-defined and stable "AB" binary system in the presence of "C" a crystalline synthon ground in a ball mill undergoes selective transformation in the solid state according to the equation AB+C→AC+B. When the amount of C is increased two times then the equation AB+2C→AC+BC is valid. The other variants are more complex. The pathway BC+A is allowed and leads to the AC and B products. The pathway AC+B is not preferred, and no transformation is observed. These non-obvious correlations were observed for cocrystal of barbituric acid (BA):thiobarbituric acid (TBA) recently reported by Shemchuk et al. (Chem. Commun. 2016, 52, 11815-11818) in the presence of 1-hydroxy-4,5-dimethyl-imidazole 3-oxide (HIMO). This synthon shows high affinity for the BA0.5 TBA0.5 cocrystal as well for its individual components, BA and TBA. Single-quantum, double-quantum (SQ-DQ) 2D 1 H very fast MAS NMR with a spinning rate of 60 kHz was employed as a basic and most diagnostic tool for the study of cocrystals transformations. Analysis of the experimental data was supported by theoretical calculations, including computation of the stabilization energy, Estab , defined as the energy difference between the energy of a co-crystal and the sum of the energies of particular components in the respective stoichiometric ratios. Two mechanisms of synthon replacement have been proposed. Pathway 1 assumes a concerted mechanism of substitution. In this approach, synthon attack is synchronized in time with the departure of one of the components of the binary system. Pathway 2 implies a non-concerted process, with an intermediate stage in which three separate components are present. Evidence suggesting a preference for Pathway 2 is shown.
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Affiliation(s)
- Marta K Dudek
- Division of Structural Studies, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland
| | - Justyna Śniechowska
- Division of Structural Studies, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland
| | - Aneta Wróblewska
- Division of Structural Studies, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland
| | - Sławomir Kaźmierski
- Division of Structural Studies, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland
| | - Marek J Potrzebowski
- Division of Structural Studies, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Łódź, Poland
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31
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Kumari N, Ghosh A. Cocrystallization: Cutting Edge Tool for Physicochemical Modulation of Active Pharmaceutical Ingredients. Curr Pharm Des 2020; 26:4858-4882. [PMID: 32691702 DOI: 10.2174/1381612826666200720114638] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/16/2020] [Indexed: 02/08/2023]
Abstract
Cocrystallization is a widely accepted and clinically relevant technique that has prospered very well over the past decades to potentially modify the physicochemical properties of existing active pharmaceutic ingredients (APIs) without compromising their therapeutic benefits. Over time, it has become an integral part of the pre-formulation stage of drug development because of its ability to yield cocrystals with improved properties in a way that other traditional methods cannot easily achieve. Cocrystals are solid crystalline materials composed of two or more than two molecules which are non-covalently bonded in the same crystal lattice. Due to the continuous efforts of pharmaceutical scientists and crystal engineers, today cocrystals have emerged as a cutting edge tool to modulate poor physicochemical properties of APIs such as solubility, permeability, bioavailability, improving poor mechanical properties and taste masking. The success of cocrystals can be traced back by looking at the number of products that are getting regulatory approval. At present, many cocrystals have obtained regulatory approval and they successfully made into the market place followed by a fair number of cocrystals that are currently in the clinical phases. Considering all these facts about cocrystals, the formulation scientists have been inspired to undertake more relevant research to extract out maximum benefits. Here in this review cocrystallization technique will be discussed in detail with respect to its background, different synthesis approaches, synthesis mechanism, application and improvements in drug delivery systems and its regulatory perspective.
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Affiliation(s)
- Nimmy Kumari
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi - 835215, Jharkhand, India
| | - Animesh Ghosh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi - 835215, Jharkhand, India
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32
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Titi HM, Do JL, Howarth AJ, Nagapudi K, Friščić T. Simple, scalable mechanosynthesis of metal-organic frameworks using liquid-assisted resonant acoustic mixing (LA-RAM). Chem Sci 2020; 11:7578-7584. [PMID: 34094134 PMCID: PMC8159441 DOI: 10.1039/d0sc00333f] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 02/26/2020] [Indexed: 12/15/2022] Open
Abstract
We present a rapid and readily scalable methodology for the mechanosynthesis of diverse metal-organic frameworks (MOFs) in the absence of milling media typically required for other types of mechanochemical syntheses. We demonstrate the use of liquid-assisted resonant acoustic mixing (LA-RAM) methodology for the synthesis of three- and two-dimensional MOFs based on Zn(ii), Co(ii) and Cu(ii), including a mixed ligand system. Importantly, the LA-RAM approach also allowed the synthesis of the ZIF-L framework that has never been previously obtained in a mechanochemical environment, as well as its Co(ii) analogue. Straightforward scale-up from milligrams to at least 25 grams is demonstrated using the metastable framework ZIF-L as the model.
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Affiliation(s)
- Hatem M Titi
- Department of Chemistry, McGill University 801 Sherbrooke St. West Montreal QC H3A 0B8 Canada
| | - Jean-Louis Do
- Department of Chemistry, McGill University 801 Sherbrooke St. West Montreal QC H3A 0B8 Canada
- Department of Chemistry and Biochemistry, Concordia University Montreal QC Canada
| | - Ashlee J Howarth
- Department of Chemistry and Biochemistry, Concordia University Montreal QC Canada
| | | | - Tomislav Friščić
- Department of Chemistry, McGill University 801 Sherbrooke St. West Montreal QC H3A 0B8 Canada
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33
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Tanaka R, Hattori Y, Otsuka M, Ashizawa K. Application of spray freeze drying to theophylline-oxalic acid cocrystal engineering for inhaled dry powder technology. Drug Dev Ind Pharm 2020; 46:179-187. [PMID: 31937148 DOI: 10.1080/03639045.2020.1716367] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Spray freeze drying (SFD) produces suitable particles for the pharmaceutical formulation of dry powders used in dry powder inhalers (DPIs). However, SFD particles have large specific surface area and are partially made up of amorphous solids; this state is hygroscopic and would lead to changes in physicochemical properties by humidity when the particles are stored over the long-term or under high humidity conditions such as in the lungs. This study focused on the application of SFD with a cocrystal technique which can add humidity resistance to the active pharmaceutical ingredients (APIs), and the investigation of the physicochemical properties under high humidity conditions. Cocrystal samples containing theophylline anhydrate (THA) and oxalic acid (OXA) in a molar ratio of 2:1 were prepared by SFD. The crystalline structure, thermal behavior, solid-state, hygroscopicity, stability, and aerodynamic properties were evaluated. Simultaneous in situ measurement by near-infrared and Raman (NIR-Raman) spectroscopy was performed to analyze the humidification process. The SFD sample had a porous particle and an optimal aerodynamic particle size (3.03 µm) although the geometric particle diameter was 7.20 µm. In addition, the sample formed the THAOXA cocrystal with partial coamorphous. The hydration capacity and pseudopolymorphic transformation rate of the SFD sample were much lower than those of THA under conditions of 96.4% relative humidity and 40.0°C temperature because of the cocrystal formation. The reasons were discussed based on the crystalline structure and energy. The SFD technology for cocrystallization would enable the pharmaceutical preparation of DPI products under environmentally friendly conditions.
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Affiliation(s)
- Ryoma Tanaka
- Graduate School of Pharmaceutical Sciences, Musashino University, Tokyo, Japan.,Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| | - Yusuke Hattori
- Graduate School of Pharmaceutical Sciences, Musashino University, Tokyo, Japan.,Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - Makoto Otsuka
- Graduate School of Pharmaceutical Sciences, Musashino University, Tokyo, Japan.,Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - Kazuhide Ashizawa
- Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
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34
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de Oliveira PFM, Michalchuk AAL, Marquardt J, Feiler T, Prinz C, Torresi RM, Camargo PHC, Emmerling F. Investigating the role of reducing agents on mechanosynthesis of Au nanoparticles. CrystEngComm 2020. [DOI: 10.1039/d0ce00826e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The influence of reducing agents on the mechanochemical synthesis of Au nanoparticles differ significantly from analogous solution syntheses. Environmentally benign mechanochemical syntheses of metal nanoparticles therefore require dedicated studies.
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Affiliation(s)
- Paulo F. M. de Oliveira
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | | | - Julien Marquardt
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
| | - Torvid Feiler
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
| | - Carsten Prinz
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
| | - Roberto M. Torresi
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Pedro H. C. Camargo
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
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35
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Sarmah KK, Nath N, Rao DR, Thakuria R. Mechanochemical synthesis of drug–drug and drug–nutraceutical multicomponent solids of olanzapine. CrystEngComm 2020. [DOI: 10.1039/c9ce01504c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Drug–drug and drug–nutraceutical multicomponent solids of an antipsychotic drug olanzapine (OLN) are prepared using mechanochemistry.
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Affiliation(s)
| | - Nilamoni Nath
- Department of Chemistry
- Gauhati University
- Guwahati 781014
- India
| | | | - Ranjit Thakuria
- Department of Chemistry
- Gauhati University
- Guwahati 781014
- India
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36
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Tanaka R, Duggirala NK, Hattori Y, Otsuka M, Suryanarayanan R. Formation of Indomethacin-Saccharin Cocrystals during Wet Granulation: Role of Polymeric Excipients. Mol Pharm 2019; 17:274-283. [PMID: 31756100 DOI: 10.1021/acs.molpharmaceut.9b01004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Formulation of a cocrystal into a solid pharmaceutical dosage form entails numerous processing steps during which there is risk of dissociation. In an effort to reduce the number of unit operations, we have attempted the in situ formation of an indomethacin-saccharin (INDSAC) cocrystal during high-shear wet granulation (HSWG). HSWG of IND (poorly water-soluble drug) and SAC (coformer), with polymers (granulating agents), was carried out using ethanol as the granulation liquid and yielded INDSAC cocrystal granules. Therefore, cocrystal formation and granulation were simultaneously accomplished. Our objectives were to (i) evaluate the influence of polymers on cocrystal formation kinetics during wet granulation and (ii) mechanistically understand the role of polymers in facilitating the cocrystal formation. Polyvinylpyrrolidone (PVP), hydroxypropyl cellulose (HPC), and polyethylene oxide (PEO) were chosen to investigate the influence of soluble polymers. The cocrystal formation kinetics was influenced by the polymer (PVP < HPC < PEO) and its concentration. The interaction of the polymer with cocrystal components inhibited the cocrystal formation. Complete cocrystal formation was observed in the presence of PEO, a polymer which does not interact with IND and SAC.
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Affiliation(s)
- Ryoma Tanaka
- Department of Pharmaceutics, College of Pharmacy , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | - Naga Kiran Duggirala
- Department of Pharmaceutics, College of Pharmacy , University of Minnesota , Minneapolis , Minnesota 55455 , United States
| | | | | | - Raj Suryanarayanan
- Department of Pharmaceutics, College of Pharmacy , University of Minnesota , Minneapolis , Minnesota 55455 , United States
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Liu N, Duan B, Lu X, Mo H, Bi F, Wang B, Zhang J, Yan Q. Rapid and High‐Yielding Formation of CL‐20/DNDAP Cocrystals
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Self‐Assembly in Slightly Soluble‐Medium with Improved Sensitivity and Thermal Stability. PROPELLANTS EXPLOSIVES PYROTECHNICS 2019. [DOI: 10.1002/prep.201900053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Ning Liu
- Xi'an Modern Chemistry Research Institute Xi'an 710065 P. R. China
- State Key Laboratory of Fluorine & Nitrogen Chemicals Xi'an 710065 P. R. China
| | - Binghui Duan
- Xi'an Modern Chemistry Research Institute Xi'an 710065 P. R. China
| | - Xianming Lu
- Xi'an Modern Chemistry Research Institute Xi'an 710065 P. R. China
- State Key Laboratory of Fluorine & Nitrogen Chemicals Xi'an 710065 P. R. China
| | - Hongchang Mo
- Xi'an Modern Chemistry Research Institute Xi'an 710065 P. R. China
| | - Fuqiang Bi
- Xi'an Modern Chemistry Research Institute Xi'an 710065 P. R. China
- State Key Laboratory of Fluorine & Nitrogen Chemicals Xi'an 710065 P. R. China
| | - Bozhou Wang
- Xi'an Modern Chemistry Research Institute Xi'an 710065 P. R. China
- State Key Laboratory of Fluorine & Nitrogen Chemicals Xi'an 710065 P. R. China
| | - Jiaoqiang Zhang
- Department of Applied Chemistry, School of ScienceNorthwestern Polytechnical University Xi'an 710129 P. R. China
| | - Qi‐Long Yan
- Science and Technology on Combustion, Thermal Structure and Internal Flow LaboratoryNorthwestern Polytechnical University Xi'an 710072 P. R. China
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Tanaka R, Hattori Y, Ashizawa K, Otsuka M. Kinetics Study of Cocrystal Formation Between Indomethacin and Saccharin Using High-Shear Granulation With In Situ Raman Spectroscopy. J Pharm Sci 2019; 108:3201-3208. [PMID: 31279736 DOI: 10.1016/j.xphs.2019.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 06/06/2019] [Accepted: 06/20/2019] [Indexed: 10/26/2022]
Abstract
Pharmaceutical manufacturing processes are necessary to make solid dosage form even in cocrystal formation. In an effort to reduce the number of unit operations, high-shear wet granulation with cocrystallization system was proposed. In the present study, indomethacin-saccharin was chosen as a model compound, and the cocrystal formation kinetics was investigated during the consistent process. The role of each initial indomethacin crystal state (γ-form, α-form, or amorphous) for the kinetics was explored using in situ Raman spectroscopy with multivariate curve resolution by alternating least-squares analysis as a chemometrics. Obtained granules were characterized by X-ray diffraction and tablet dissolution testing. The Raman peaks assigned to indomethacin-saccharin cocrystal were increased with granulation when ethanol was used as a binding solvent. In addition, the reaction kinetics of run samples which had different indomethacin forms was distinguished by best fitting using Avrami-Erofeev or Ginstling-Brounshtein model. The kinetic variance depended on the initial thermodynamic state of indomethacin because they had a different crystallization mechanism for the cocrystal. The scalable and feasible granulation method is required in the pharmaceutical industry.
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Affiliation(s)
- Ryoma Tanaka
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan; Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55455
| | - Yusuke Hattori
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan; Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan
| | - Kazuhide Ashizawa
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan
| | - Makoto Otsuka
- Graduate School of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan; Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20 Shin-machi, Nishi-Tokyo, Tokyo 202-8585, Japan.
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Michalchuk AAL, Tumanov IA, Boldyreva EV. Ball size or ball mass – what matters in organic mechanochemical synthesis? CrystEngComm 2019. [DOI: 10.1039/c8ce02109k] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effects of milling ball mass, size and material are isolated for a model mechanochemical co-crystallisation.
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Affiliation(s)
- Adam A. L. Michalchuk
- Novosibirsk State University
- Novosibirsk
- Russian Federation
- EaStCHEM School of Chemistry
- University of Edinburgh
| | - Ivan A. Tumanov
- Novosibirsk State University
- Novosibirsk
- Russian Federation
- Boreskov Institute of Catalysis
- Siberian Branch of the Russian Academy of Sciences
| | - Elena V. Boldyreva
- Novosibirsk State University
- Novosibirsk
- Russian Federation
- Boreskov Institute of Catalysis
- Siberian Branch of the Russian Academy of Sciences
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40
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Kulla H, Michalchuk AAL, Emmerling F. Manipulating the dynamics of mechanochemical ternary cocrystal formation. Chem Commun (Camb) 2019; 55:9793-9796. [DOI: 10.1039/c9cc03034d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In situ real-time X-ray powder diffraction and Raman spectroscopy reveal formation pathways of ternary co-crystals by mechanochemistry.
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Affiliation(s)
- Hannes Kulla
- BAM Federal Institute for Materials Research and Testing
- 12489 Berlin
- Germany
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41
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Portada T, Margetić D, Štrukil V. Mechanochemical Catalytic Transfer Hydrogenation of Aromatic Nitro Derivatives. Molecules 2018; 23:molecules23123163. [PMID: 30513686 PMCID: PMC6321105 DOI: 10.3390/molecules23123163] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 11/28/2018] [Accepted: 11/29/2018] [Indexed: 12/31/2022] Open
Abstract
Mechanochemical ball milling catalytic transfer hydrogenation (CTH) of aromatic nitro compounds using readily available and cheap ammonium formate as the hydrogen source is demonstrated as a simple, facile and clean approach for the synthesis of substituted anilines and selected pharmaceutically relevant compounds. The scope of mechanochemical CTH is broad, as the reduction conditions tolerate various functionalities, for example nitro, amino, hydroxy, carbonyl, amide, urea, amino acid and heterocyclic. The presented methodology was also successfully integrated with other types of chemical reactions previously carried out mechanochemically, such as amide bond formation by coupling amines with acyl chlorides or anhydrides and click-type coupling reactions between amines and iso(thio)cyanates. In this way, we showed that active pharmaceutical ingredients Procainamide and Paracetamol could be synthesized from the respective nitro-precursors on milligram and gram scale in excellent isolated yields.
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Affiliation(s)
- Tomislav Portada
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
| | - Davor Margetić
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
| | - Vjekoslav Štrukil
- Division of Organic Chemistry and Biochemistry, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia.
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Wilke M, Casati N. Insight into the Mechanochemical Synthesis and Structural Evolution of Hybrid Organic-Inorganic Guanidinium Lead(II) Iodides. Chemistry 2018; 24:17701-17711. [DOI: 10.1002/chem.201804066] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Manuel Wilke
- Laboratory for Synchrotron Radiation-Condensed Matter; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
| | - Nicola Casati
- Laboratory for Synchrotron Radiation-Condensed Matter; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
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