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Eyke NS, Schneider TN, Jin B, Hart T, Monfette S, Hawkins JM, Morse PD, Howard RM, Pfisterer DM, Nandiwale KY, Jensen KF. Parallel multi-droplet platform for reaction kinetics and optimization. Chem Sci 2023; 14:8798-8809. [PMID: 37621435 PMCID: PMC10445457 DOI: 10.1039/d3sc02082g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023] Open
Abstract
We present an automated droplet reactor platform possessing parallel reactor channels and a scheduling algorithm that orchestrates all of the parallel hardware operations and ensures droplet integrity as well as overall efficiency. We design and incorporate all of the necessary hardware and software to enable the platform to be used to study both thermal and photochemical reactions. We incorporate a Bayesian optimization algorithm into the control software to enable reaction optimization over both categorical and continuous variables. We demonstrate the capabilities of both the preliminary single-channel and parallelized versions of the platform using a series of model thermal and photochemical reactions. We conduct a series of reaction optimization campaigns and demonstrate rapid acquisition of the data necessary to determine reaction kinetics. The platform is flexible in terms of use case: it can be used either to investigate reaction kinetics or to perform reaction optimization over a wide range of chemical domains.
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Affiliation(s)
- Natalie S Eyke
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Timo N Schneider
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Brooke Jin
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Travis Hart
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Sebastien Monfette
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - Joel M Hawkins
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - Peter D Morse
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - Roger M Howard
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | - David M Pfisterer
- Pfizer Worldwide Research and Development 445 Eastern Point Rd Groton CT 06340 USA
| | | | - Klavs F Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology Cambridge MA 02139 USA
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2
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O'Brien M, Moraru R. An Automated Computer-Vision "Bubble-Counting" Technique to Characterise CO 2 Dissolution into an Acetonitrile Flow Stream in a Teflon AF-2400 Tube-in-Tube Flow Device. Chempluschem 2023; 88:e202200167. [PMID: 35997644 DOI: 10.1002/cplu.202200167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/30/2022] [Indexed: 01/28/2023]
Abstract
A Teflon AF-2400 based tube-in-tube device was used to generate flow streams of CO2 in acetonitrile and a computer-vision based 'bubble counting' technique was used to estimate the amount of CO2 that had passed into solution whilst in the tube-in-tube device by quantifying the amount of CO2 that left solution (forming separate gas-phase segments) downstream of the back-pressure regulator. For both CO2 pressures used, there appeared to be a minimum residence time below which no CO2 was observed to leave solution. This was assumed to be due to residual CO2 below (or close to) the saturation concentration at atmospheric pressure and, by taking this into account, we were able to fit curves corresponding to simple gradient-driven diffusion and which closely matched previously obtained colorimetric titration data for the same system. The estimated value for the residual concentration of CO2 (0.37 M) is higher than, but in reasonable general correspondence with, saturation concentrations previously reported for CO2 in acetonitrile (0.27 M).
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Affiliation(s)
- Matthew O'Brien
- The Lennard-Jones Laboratories, Keele University, Keele, Borough of Newcastle-under-Lyme, ST5 5BG, Staffordshire, UK
| | - Ruxandra Moraru
- The Lennard-Jones Laboratories, Keele University, Keele, Borough of Newcastle-under-Lyme, ST5 5BG, Staffordshire, UK
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Phung Hai T, Samoylov AA, Rajput BS, Burkart MD. Laboratory Ozonolysis Using an Integrated Batch-DIY Flow System for Renewable Material Production. ACS OMEGA 2022; 7:15350-15358. [PMID: 35571824 PMCID: PMC9096922 DOI: 10.1021/acsomega.1c06823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
Flow chemistry offers a solution for replacing batch methods in chemical preparation where intermediates or products may pose toxicity or instability hazards. Ozonolysis offers an ideal opportunity for flow chemistry solutions, but multiple barriers to entry exist for use of these methods, including equipment cost and performance optimization. To address these challenges, we developed a programmable DIY syringe pump system to use for a continuous flow multireactor process using 3D-printed parts, off-the-shelf stepper motors, and an Arduino microcontroller. Reaction kinetics of ozonide formation informed the use of an integrated batch-flow approach, where ozone addition to an olefin was timed to coincide with fluid movement of a single-syringe pump, followed by downstream Pinnick oxidation and reductive quench in flow. The system was demonstrated by continuous preparation of azelaic acid from ozonolysis of palmitoleic acid, a process limited to low production volumes via batch chemistry. High total production of azelaic acid with 80% yield was obtained from an algae oil sourced unsaturated fatty acid: a product with important applications in medicine, cosmetics, and polymers. This low-cost, scalable approach offers the potential for rapid prototyping and distributed chemical production.
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5
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Häse F, Aldeghi M, Hickman RJ, Roch LM, Christensen M, Liles E, Hein JE, Aspuru-Guzik A. Olympus: a benchmarking framework for noisy optimization and experiment planning. MACHINE LEARNING: SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1088/2632-2153/abedc8] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Abstract
Research challenges encountered across science, engineering, and economics can frequently be formulated as optimization tasks. In chemistry and materials science, recent growth in laboratory digitization and automation has sparked interest in optimization-guided autonomous discovery and closed-loop experimentation. Experiment planning strategies based on off-the-shelf optimization algorithms can be employed in fully autonomous research platforms to achieve desired experimentation goals with the minimum number of trials. However, the experiment planning strategy that is most suitable to a scientific discovery task is a priori unknown while rigorous comparisons of different strategies are highly time and resource demanding. As optimization algorithms are typically benchmarked on low-dimensional synthetic functions, it is unclear how their performance would translate to noisy, higher-dimensional experimental tasks encountered in chemistry and materials science. We introduce Olympus, a software package that provides a consistent and easy-to-use framework for benchmarking optimization algorithms against realistic experiments emulated via probabilistic deep-learning models. Olympus includes a collection of experimentally derived benchmark sets from chemistry and materials science and a suite of experiment planning strategies that can be easily accessed via a user-friendly Python interface. Furthermore, Olympus facilitates the integration, testing, and sharing of custom algorithms and user-defined datasets. In brief, Olympus mitigates the barriers associated with benchmarking optimization algorithms on realistic experimental scenarios, promoting data sharing and the creation of a standard framework for evaluating the performance of experiment planning strategies.
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6
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Fath V, Lau P, Greve C, Weller P, Kockmann N, Röder T. Simultaneous self-optimisation of yield and purity through successive combination of inline FT-IR spectroscopy and online mass spectrometry in flow reactions. J Flow Chem 2021. [DOI: 10.1007/s41981-021-00140-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AbstractSelf-optimisation constitutes a very helpful tool for chemical process development, both in lab and in industrial applications. However, research on the application of model-free autonomous optimisation strategies (based on experimental investigation) for complex reactions of high industrial significance, which involve considerable intermediate and by-product formation, is still in an early stage. This article describes the development of an enhanced autonomous microfluidic reactor platform for organolithium and epoxide reactions that incorporates a successive combination of inline FT-IR spectrometer and online mass spectrometer. Experimental data is collected in real-time and used as feedback for the optimisation algorithms (modified Simplex algorithm and Design of Experiments) without time delay. An efficient approach to handle intricate optimisation problems is presented, where the inline FT-IR measurements are used to monitor the reaction’s main components, whereas the mass spectrometer’s high sensitivity permits insights into the formation of by-products. To demonstrate the platform’s flexibility, optimal reaction conditions of two organic syntheses are identified. Both pose several challenges, as complex reaction mechanisms are involved, leading to a large number of variable parameters, and a considerable amount of by-products is generated under non-ideal process conditions. Through multidimensional real-time optimisation, the platform supersedes labor- and cost-intensive work-up procedures, while diminishing waste generation, too. Thus, it renders production processes more efficient and contributes to their overall sustainability.
Graphical abstract
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7
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Sagmeister P, Kaldre D, Sedelmeier J, Moessner C, Püntener K, Kummli D, Williams JD, Kappe CO. Intensified Continuous Flow Synthesis and Workup of 1,5-Disubstituted Tetrazoles Enhanced by Real-Time Process Analytics. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Peter Sagmeister
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - Dainis Kaldre
- Department of Process Chemistry & Catalysis, F. Hoffmann-La Roche Ltd., 4070 Basel, Switzerland
| | - Joerg Sedelmeier
- Department of Process Chemistry & Catalysis, F. Hoffmann-La Roche Ltd., 4070 Basel, Switzerland
| | - Christian Moessner
- Department of Process Chemistry & Catalysis, F. Hoffmann-La Roche Ltd., 4070 Basel, Switzerland
| | - Kurt Püntener
- Department of Process Chemistry & Catalysis, F. Hoffmann-La Roche Ltd., 4070 Basel, Switzerland
| | - Dominique Kummli
- Department of Process Chemistry & Catalysis, F. Hoffmann-La Roche Ltd., 4070 Basel, Switzerland
| | - Jason D. Williams
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - C. Oliver Kappe
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, 8010 Graz, Austria
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8
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Taylor CJ, Baker A, Chapman MR, Reynolds WR, Jolley KE, Clemens G, Smith GE, Blacker AJ, Chamberlain TW, Christie SDR, Taylor BA, Bourne RA. Flow chemistry for process optimisation using design of experiments. J Flow Chem 2021. [DOI: 10.1007/s41981-020-00135-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
AbstractImplementing statistical training into undergraduate or postgraduate chemistry courses can provide high-impact learning experiences for students. However, the opportunity to reinforce this training with a combined laboratory practical can significantly enhance learning outcomes by providing a practical bolstering of the concepts. This paper outlines a flow chemistry laboratory practical for integrating design of experiments optimisation techniques into an organic chemistry laboratory session in which students construct a simple flow reactor and perform a structured series of experiments followed by computational processing and analysis of the results.
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9
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Neyt NC, Riley DL. Application of reactor engineering concepts in continuous flow chemistry: a review. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00004g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The adoption of flow technology for the manufacture of chemical entities, and in particular pharmaceuticals, has seen rapid growth over the past two decades with the technology now blurring the lines between chemistry and chemical engineering.
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Affiliation(s)
- Nicole C. Neyt
- Faculty of Natural and Agricultural Sciences
- Department of Chemistry
- University of Pretoria
- South Africa
| | - Darren L. Riley
- Faculty of Natural and Agricultural Sciences
- Department of Chemistry
- University of Pretoria
- South Africa
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10
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Thakkar A, Johansson S, Jorner K, Buttar D, Reymond JL, Engkvist O. Artificial intelligence and automation in computer aided synthesis planning. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00340a] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this perspective we deal with questions pertaining to the development of synthesis planning technologies over the course of recent years.
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Affiliation(s)
- Amol Thakkar
- Hit Discovery
- Discovery Sciences
- R&D
- AstraZeneca
- Gothenburg
| | | | - Kjell Jorner
- Early Chemical Development
- Pharmaceutical Sciences
- R&D
- AstraZeneca
- Macclesfield
| | - David Buttar
- Early Chemical Development
- Pharmaceutical Sciences
- R&D
- AstraZeneca
- Macclesfield
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry
- University of Bern
- 3012 Bern
- Switzerland
| | - Ola Engkvist
- Hit Discovery
- Discovery Sciences
- R&D
- AstraZeneca
- Gothenburg
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11
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Abstract
With the rapid development of high technology, chemical science is not as it used to be a century ago. Many chemists acquire and utilize skills that are well beyond the traditional definition of chemistry. The digital age has transformed chemistry laboratories. One aspect of this transformation is the progressing implementation of electronics and computer science in chemistry research. In the past decade, numerous chemistry-oriented studies have benefited from the implementation of electronic modules, including microcontroller boards (MCBs), single-board computers (SBCs), professional grade control and data acquisition systems, as well as field-programmable gate arrays (FPGAs). In particular, MCBs and SBCs provide good value for money. The application areas for electronic modules in chemistry research include construction of simple detection systems based on spectrophotometry and spectrofluorometry principles, customizing laboratory devices for automation of common laboratory practices, control of reaction systems (batch- and flow-based), extraction systems, chromatographic and electrophoretic systems, microfluidic systems (classical and nonclassical), custom-built polymerase chain reaction devices, gas-phase analyte detection systems, chemical robots and drones, construction of FPGA-based imaging systems, and the Internet-of-Chemical-Things. The technology is easy to handle, and many chemists have managed to train themselves in its implementation. The only major obstacle in its implementation is probably one's imagination.
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Affiliation(s)
- Gurpur Rakesh D Prabhu
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, 1001 University Road, Hsinchu, 300, Taiwan
| | - Pawel L Urban
- Department of Chemistry, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan.,Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan
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12
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Fitzpatrick DE, O'Brien M, Ley SV. A tutored discourse on microcontrollers, single board computers and their applications to monitor and control chemical reactions. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00407f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This Tutored Discourse constitutes a preliminary exposure on how synthesis chemists can engage positively with inexpensive, low-power microcontrollers to aid control, monitoring and optimisation of chemical reactions.
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Affiliation(s)
| | - Matthew O'Brien
- Department of Chemistry
- Keele University
- Staffordshire ST5 5BG
- UK
| | - Steven V. Ley
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
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13
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Fath V, Kockmann N, Otto J, Röder T. Self-optimising processes and real-time-optimisation of organic syntheses in a microreactor system using Nelder–Mead and design of experiments. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00081g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Comparing an enhanced simplex algorithm with model-free design of experiments, this work presents a flexible platform for multi-objective, real-time optimisation.
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Affiliation(s)
- Verena Fath
- Department of Biochemical and Chemical Engineering
- Equipment Design
- TU Dortmund University
- 44227 Dortmund
- Germany
| | - Norbert Kockmann
- Department of Biochemical and Chemical Engineering
- Equipment Design
- TU Dortmund University
- 44227 Dortmund
- Germany
| | - Jürgen Otto
- Institute for Applied Thermo- and Fluid Dynamics
- Mannheim University of Applied Sciences
- 68163 Mannheim
- Germany
| | - Thorsten Röder
- Institute of Chemical Process Engineering
- Mannheim University of Applied Sciences
- 68163 Mannheim
- Germany
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14
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Affiliation(s)
| | - Cameron Mura
- Dept of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America
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15
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Riley DL, Strydom I, Chikwamba R, Panayides JL. Landscape and opportunities for active pharmaceutical ingredient manufacturing in developing African economies. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00236c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review will highlight the opportunities that exist in the localization of cutting-edge manufacturing technologies within an African context.
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Affiliation(s)
- Darren L. Riley
- Department of Chemistry
- Faculty of Natural and Agricultural Sciences
- University of Pretoria, Pretoria
- South Africa
| | - Ian Strydom
- Department of Chemistry
- Faculty of Natural and Agricultural Sciences
- University of Pretoria, Pretoria
- South Africa
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16
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Sagmeister P, Williams JD, Hone CA, Kappe CO. Laboratory of the future: a modular flow platform with multiple integrated PAT tools for multistep reactions. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00087a] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The coupling of a modular microreactor platform, real-time inline analysis by IR and NMR, and online UPLC, leads to efficient optimization of a multistep organolithium transformation to a given product without the need for human intervention.
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Affiliation(s)
- Peter Sagmeister
- Center for Continuous Synthesis and Processing (CCFLOW)
- Research Center Pharmaceutical Engineering (RCPE)
- 8010 Graz
- Austria
- Institute of Chemistry
| | - Jason D. Williams
- Center for Continuous Synthesis and Processing (CCFLOW)
- Research Center Pharmaceutical Engineering (RCPE)
- 8010 Graz
- Austria
- Institute of Chemistry
| | - Christopher A. Hone
- Center for Continuous Synthesis and Processing (CCFLOW)
- Research Center Pharmaceutical Engineering (RCPE)
- 8010 Graz
- Austria
- Institute of Chemistry
| | - C. Oliver Kappe
- Center for Continuous Synthesis and Processing (CCFLOW)
- Research Center Pharmaceutical Engineering (RCPE)
- 8010 Graz
- Austria
- Institute of Chemistry
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17
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Nieves-Remacha MJ, Torres M, Ruiz-Abad M, Rincón JA, Cumming GR, Garcia-Losada P. Scale-up of N-alkylation reaction using phase-transfer catalysis with integrated separation in flow. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00203g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Scaling-up phase-transfer catalysis in flow.
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Affiliation(s)
| | - Myriam Torres
- Centro de Investigación Lilly S.A
- Avda. de la Industria
- 30, 28108 Alcobendas
- Spain
| | - María Ruiz-Abad
- Centro de Investigación Lilly S.A
- Avda. de la Industria
- 30, 28108 Alcobendas
- Spain
| | - Juan A. Rincón
- Centro de Investigación Lilly S.A
- Avda. de la Industria
- 30, 28108 Alcobendas
- Spain
| | - Graham R. Cumming
- Centro de Investigación Lilly S.A
- Avda. de la Industria
- 30, 28108 Alcobendas
- Spain
| | - Pablo Garcia-Losada
- Centro de Investigación Lilly S.A
- Avda. de la Industria
- 30, 28108 Alcobendas
- Spain
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18
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Mateos C, Nieves-Remacha MJ, Rincón JA. Automated platforms for reaction self-optimization in flow. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00116f] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This article highlights recent progress in continuous flow self-optimizing platforms.
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Affiliation(s)
- Carlos Mateos
- Centro de Investigación Lilly S.A
- Alcobendas-Madrid 28108
- Spain
| | | | - Juan A. Rincón
- Centro de Investigación Lilly S.A
- Alcobendas-Madrid 28108
- Spain
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19
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Rode HB, Lade DM, Grée R, Mainkar PS, Chandrasekhar S. Strategies towards the synthesis of anti-tuberculosis drugs. Org Biomol Chem 2019; 17:5428-5459. [DOI: 10.1039/c9ob00817a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this report, we reviewed the strategies towards the synthesis of anti-tuberculosis drugs. They include semisynthetic approaches, resolution based strategies, microbial transformations, solid phase synthesis, and asymmetric synthesis.
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Affiliation(s)
- Haridas B. Rode
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Dhanaji M. Lade
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - René Grée
- University of Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes)
- UMR 6226
- F-35000 Rennes
| | - Prathama S. Mainkar
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Srivari Chandrasekhar
- Department of Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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20
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Akwi FM, Watts P. Continuous flow chemistry: where are we now? Recent applications, challenges and limitations. Chem Commun (Camb) 2018; 54:13894-13928. [PMID: 30483683 DOI: 10.1039/c8cc07427e] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A general outlook of the changing face of chemical synthesis is provided in this article through recent applications of continuous flow processing in both industry and academia. The benefits, major challenges and limitations associated with the use of this mode of processing are also given due attention as an attempt to put into perspective the current position of continuous flow processing, either as an alternative or potential combinatory technology for batch processing.
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Affiliation(s)
- Faith M Akwi
- Nelson Mandela University, University Way, Port Elizabeth, 6031, South Africa.
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21
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Bédard AC, Adamo A, Aroh KC, Russell MG, Bedermann AA, Torosian J, Yue B, Jensen KF, Jamison TF. Reconfigurable system for automated optimization of diverse chemical reactions. Science 2018; 361:1220-1225. [PMID: 30237351 DOI: 10.1126/science.aat0650] [Citation(s) in RCA: 228] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 07/25/2018] [Indexed: 11/02/2022]
Abstract
Chemical synthesis generally requires labor-intensive, sometimes tedious trial-and-error optimization of reaction conditions. Here, we describe a plug-and-play, continuous-flow chemical synthesis system that mitigates this challenge with an integrated combination of hardware, software, and analytics. The system software controls the user-selected reagents and unit operations (reactors and separators), processes reaction analytics (high-performance liquid chromatography, mass spectrometry, vibrational spectroscopy), and conducts automated optimizations. The capabilities of this system are demonstrated in high-yielding implementations of C-C and C-N cross-coupling, olefination, reductive amination, nucleophilic aromatic substitution (SNAr), photoredox catalysis, and a multistep sequence. The graphical user interface enables users to initiate optimizations, monitor progress remotely, and analyze results. Subsequent users of an optimized procedure need only download an electronic file, comparable to a smartphone application, to implement the protocol on their own apparatus.
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Affiliation(s)
- Anne-Catherine Bédard
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Andrea Adamo
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Kosi C Aroh
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - M Grace Russell
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Aaron A Bedermann
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jeremy Torosian
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Brian Yue
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Klavs F Jensen
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Timothy F Jamison
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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22
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Fitzpatrick DE, Maujean T, Evans AC, Ley SV. Across‐the‐World Automated Optimization and Continuous‐Flow Synthesis of Pharmaceutical Agents Operating Through a Cloud‐Based Server. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Timothé Maujean
- Département de ChimieEcole Normale Supérieure Paris Saclay 94235 Cachan Cedex France
| | - Amanda C. Evans
- Department of Chemistry & BiochemistryCalifornia State University Fullerton 800 N. State College Blvd. Fullerton CA 92831 USA
| | - Steven V. Ley
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge UK
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23
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Fitzpatrick DE, Maujean T, Evans AC, Ley SV. Across-the-World Automated Optimization and Continuous-Flow Synthesis of Pharmaceutical Agents Operating Through a Cloud-Based Server. Angew Chem Int Ed Engl 2018; 57:15128-15132. [PMID: 30272384 PMCID: PMC6391944 DOI: 10.1002/anie.201809080] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Indexed: 11/08/2022]
Abstract
The power of the Cloud has been harnessed for pharmaceutical compound production with remote servers based in Tokyo, Japan being left to autonomously find optimal synthesis conditions for three active pharmaceutical ingredients (APIs) in laboratories in Cambridge, UK. A researcher located in Los Angeles, USA controlled the entire process via an internet connection. The constituent synthetic steps for Tramadol, Lidocaine, and Bupropion were thus optimized with minimal intervention from operators within hours, yielding conditions satisfying customizable evaluation functions for all examples.
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Affiliation(s)
| | - Timothé Maujean
- Département de Chimie, Ecole Normale Supérieure Paris Saclay, 94235, Cachan Cedex, France
| | - Amanda C Evans
- Department of Chemistry & Biochemistry, California State University Fullerton, 800 N. State College Blvd., Fullerton, CA, 92831, USA
| | - Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, UK
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24
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Urban PL. Prototypen-Entwicklung von Instrumenten für das chemische Laboratorium mithilfe von preiswerten Elektronikmodulen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Pawel L. Urban
- Department of Chemistry; National Tsing Hua University; 101, Sec. 2, Kuang-Fu Rd. Hsinchu 30013 Taiwan
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25
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Urban PL. Prototyping Instruments for the Chemical Laboratory Using Inexpensive Electronic Modules. Angew Chem Int Ed Engl 2018; 57:11074-11077. [PMID: 29766621 DOI: 10.1002/anie.201803878] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/10/2018] [Indexed: 01/02/2023]
Abstract
Open-source electronics and programming can augment chemical and biomedical research. Currently, chemists can choose from a broad range of low-cost universal electronic modules (microcontroller boards and single-board computers) and use them to assemble working prototypes of scientific tools to address specific experimental problems and to support daily research work. The learning time can be as short as a few hours, and the required budget is often as low as 50 USD. Prototyping instruments using low-cost electronic modules gives chemists enormous flexibility to design and construct customized instrumentation, which can reduce the delays caused by limited access to high-end commercial platforms.
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Affiliation(s)
- Pawel L Urban
- Department of Chemistry, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Rd., Hsinchu, 30013, Taiwan
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26
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An open-source approach to automation in organic synthesis: The flow chemical formation of benzamides using an inline liquid-liquid extraction system and a homemade 3-axis autosampling/product-collection device. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.02.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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27
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28
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Gérardy R, Emmanuel N, Toupy T, Kassin VE, Tshibalonza NN, Schmitz M, Monbaliu JCM. Continuous Flow Organic Chemistry: Successes and Pitfalls at the Interface with Current Societal Challenges. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800149] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Romaric Gérardy
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Noémie Emmanuel
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Thomas Toupy
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Victor-Emmanuel Kassin
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Nelly Ntumba Tshibalonza
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Michaël Schmitz
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
| | - Jean-Christophe M. Monbaliu
- Center for Integrated Technology and Organic Synthesis; Department of Chemistry; Research Unit MolSys; University of Liège; Quartier Agora, Allée du six Aout, 13 4000 Liège (Sart Tilman) Belgium
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29
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An autonomous organic reaction search engine for chemical reactivity. Nat Commun 2017; 8:15733. [PMID: 28598440 PMCID: PMC5472751 DOI: 10.1038/ncomms15733] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/22/2017] [Indexed: 11/14/2022] Open
Abstract
The exploration of chemical space for new reactivity, reactions and molecules is limited by the need for separate work-up-separation steps searching for molecules rather than reactivity. Herein we present a system that can autonomously evaluate chemical reactivity within a network of 64 possible reaction combinations and aims for new reactivity, rather than a predefined set of targets. The robotic system combines chemical handling, in-line spectroscopy and real-time feedback and analysis with an algorithm that is able to distinguish and select the most reactive pathways, generating a reaction selection index (RSI) without need for separate work-up or purification steps. This allows the automatic navigation of a chemical network, leading to previously unreported molecules while needing only to do a fraction of the total possible reactions without any prior knowledge of the chemistry. We show the RSI correlates with reactivity and is able to search chemical space using the most reactive pathways. While automated reaction systems typically work for the synthesis of pre-defined molecules, automated systems to discover reactivity are more challenging. Here the authors report an autonomous organic reaction search engine that allows discovery of the most reactive pathways in a multi-reagent, multistep reaction system.
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30
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Fitzpatrick D, Battilocchio C, Ley SV. Enabling Technologies for the Future of Chemical Synthesis. ACS CENTRAL SCIENCE 2016; 2:131-8. [PMID: 27163040 PMCID: PMC4827522 DOI: 10.1021/acscentsci.6b00015] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 05/07/2023]
Abstract
Technology is evolving at breakneck pace, changing the way we communicate, travel, find out information, and live our lives. Yet chemistry as a science has been slower to adapt to this rapidly shifting world. In this Outlook we use highlights from recent literature reports to describe how progresses in enabling technologies are altering this trend, permitting chemists to incorporate new advances into their work at all levels of the chemistry development cycle. We discuss the benefits and challenges that have arisen, impacts on academic-industry relationships, and future trends in the area of chemical synthesis.
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31
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Holmes N, Akien GR, Blacker AJ, Woodward RL, Meadows RE, Bourne RA. Self-optimisation of the final stage in the synthesis of EGFR kinase inhibitor AZD9291 using an automated flow reactor. REACT CHEM ENG 2016. [DOI: 10.1039/c6re00059b] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-optimising flow reactors combine online analysis with evolutionary feedback algorithms to rapidly achieve optimum conditions.
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Affiliation(s)
- Nicholas Holmes
- Institute of Process Research and Development
- School of Chemistry
- University of Leeds
- Leeds
- UK
| | - Geoffrey R. Akien
- Institute of Process Research and Development
- School of Chemistry
- University of Leeds
- Leeds
- UK
| | - A. John Blacker
- Institute of Process Research and Development
- School of Chemistry
- University of Leeds
- Leeds
- UK
| | | | | | - Richard A. Bourne
- Institute of Process Research and Development
- School of Chemistry
- University of Leeds
- Leeds
- UK
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32
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Trojanowicz M. Flow chemistry vs. flow analysis. Talanta 2016; 146:621-40. [DOI: 10.1016/j.talanta.2015.07.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 07/07/2015] [Accepted: 07/13/2015] [Indexed: 11/28/2022]
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33
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Kim H, Lee HJ, Kim DP. Flow-Assisted Synthesis of [10]Cycloparaphenylene through Serial Microreactions under Mild Conditions. Angew Chem Int Ed Engl 2015; 55:1422-6. [DOI: 10.1002/anie.201509748] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Heejin Kim
- Department of Synthetic and Biological Chemistry Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Hyune-Jea Lee
- National Centre of Applied Microfluidic Chemistry, Department of Chemical Engineering, POSTECH; Pohang University of Science and Technology); Pohang 790-784 South Korea
| | - Dong-Pyo Kim
- National Centre of Applied Microfluidic Chemistry, Department of Chemical Engineering, POSTECH; Pohang University of Science and Technology); Pohang 790-784 South Korea
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34
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Kim H, Lee HJ, Kim DP. Flow-Assisted Synthesis of [10]Cycloparaphenylene through Serial Microreactions under Mild Conditions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509748] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Heejin Kim
- Department of Synthetic and Biological Chemistry Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Hyune-Jea Lee
- National Centre of Applied Microfluidic Chemistry, Department of Chemical Engineering, POSTECH; Pohang University of Science and Technology); Pohang 790-784 South Korea
| | - Dong-Pyo Kim
- National Centre of Applied Microfluidic Chemistry, Department of Chemical Engineering, POSTECH; Pohang University of Science and Technology); Pohang 790-784 South Korea
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35
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Fitzpatrick DE, Battilocchio C, Ley SV. A Novel Internet-Based Reaction Monitoring, Control and Autonomous Self-Optimization Platform for Chemical Synthesis. Org Process Res Dev 2015. [DOI: 10.1021/acs.oprd.5b00313] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Daniel E. Fitzpatrick
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Claudio Battilocchio
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Steven V. Ley
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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36
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37
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Houben C, Peremezhney N, Zubov A, Kosek J, Lapkin AA. Closed-Loop Multitarget Optimization for Discovery of New Emulsion Polymerization Recipes. Org Process Res Dev 2015; 19:1049-1053. [PMID: 26435638 PMCID: PMC4579860 DOI: 10.1021/acs.oprd.5b00210] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Indexed: 11/28/2022]
Abstract
![]()
Self-optimization
of chemical reactions enables faster optimization
of reaction conditions or discovery of molecules with required target
properties. The technology of self-optimization has been expanded
to discovery of new process recipes for manufacture of complex functional
products. A new machine-learning algorithm, specifically designed
for multiobjective target optimization with an explicit aim to minimize
the number of “expensive” experiments, guides the discovery
process. This “black-box” approach assumes no a priori
knowledge of chemical system and hence particularly suited to rapid
development of processes to manufacture specialist low-volume, high-value
products. The approach was demonstrated in discovery of process recipes
for a semibatch emulsion copolymerization, targeting a specific particle
size and full conversion.
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Affiliation(s)
- Claudia Houben
- Department of Chemical Engineering and Biotechnology, University of Cambridge , Pembroke Street, New Museums Site, Cambridge CB2 3RA, United Kingdom
| | - Nicolai Peremezhney
- Department of Chemical Engineering and Biotechnology, University of Cambridge , Pembroke Street, New Museums Site, Cambridge CB2 3RA, United Kingdom
| | - Alexandr Zubov
- Department of Chemical Engineering, University of Chemistry and Technology , Technicka 5, 166 28 Prague, Czech Republic
| | - Juraj Kosek
- Department of Chemical Engineering, University of Chemistry and Technology , Technicka 5, 166 28 Prague, Czech Republic
| | - Alexei A Lapkin
- Department of Chemical Engineering and Biotechnology, University of Cambridge , Pembroke Street, New Museums Site, Cambridge CB2 3RA, United Kingdom
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38
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Gutmann B, Cantillo D, Kappe CO. Continuous-flow technology—a tool for the safe manufacturing of active pharmaceutical ingredients. Angew Chem Int Ed Engl 2015; 54:6688-728. [PMID: 25989203 DOI: 10.1002/anie.201409318] [Citation(s) in RCA: 870] [Impact Index Per Article: 96.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Indexed: 12/12/2022]
Abstract
In the past few years, continuous-flow reactors with channel dimensions in the micro- or millimeter region have found widespread application in organic synthesis. The characteristic properties of these reactors are their exceptionally fast heat and mass transfer. In microstructured devices of this type, virtually instantaneous mixing can be achieved for all but the fastest reactions. Similarly, the accumulation of heat, formation of hot spots, and dangers of thermal runaways can be prevented. As a result of the small reactor volumes, the overall safety of the process is significantly improved, even when harsh reaction conditions are used. Thus, microreactor technology offers a unique way to perform ultrafast, exothermic reactions, and allows the execution of reactions which proceed via highly unstable or even explosive intermediates. This Review discusses recent literature examples of continuous-flow organic synthesis where hazardous reactions or extreme process windows have been employed, with a focus on applications of relevance to the preparation of pharmaceuticals.
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Affiliation(s)
- Bernhard Gutmann
- Institute of Chemistry, University Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz (Austria) http://www.maos.net
| | - David Cantillo
- Institute of Chemistry, University Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz (Austria) http://www.maos.net
| | - C Oliver Kappe
- Institute of Chemistry, University Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz (Austria) http://www.maos.net.
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39
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Gutmann B, Cantillo D, Kappe CO. Kontinuierliche Durchflussverfahren: ein Werkzeug für die sichere Synthese von pharmazeutischen Wirkstoffen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409318] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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Glasnov TN. Highlights from the Flow Chemistry Literature 2014 (Parts 3 and 4). J Flow Chem 2015. [DOI: 10.1556/jfc-d-14-00037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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41
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Ley SV, Fitzpatrick DE, Ingham RJ, Myers RM. Organic synthesis: march of the machines. Angew Chem Int Ed Engl 2015; 54:3449-64. [PMID: 25586940 DOI: 10.1002/anie.201410744] [Citation(s) in RCA: 309] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Indexed: 12/12/2022]
Abstract
Organic synthesis is changing; in a world where budgets are constrained and the environmental impacts of practice are scrutinized, it is increasingly recognized that the efficient use of human resource is just as important as material use. New technologies and machines have found use as methods for transforming the way we work, addressing these issues encountered in research laboratories by enabling chemists to adopt a more holistic systems approach in their work. Modern developments in this area promote a multi-disciplinary approach and work is more efficient as a result. This Review focuses on the concepts, procedures and methods that have far-reaching implications in the chemistry world. Technologies have been grouped as topics of opportunity and their recent applications in innovative research laboratories are described.
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Affiliation(s)
- Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK).
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42
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Ley SV, Fitzpatrick DE, Ingham RJ, Myers RM. Organische Synthese: Vormarsch der Maschinen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410744] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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43
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Glöckner S, Tran DN, Ingham RJ, Fenner S, Wilson ZE, Battilocchio C, Ley SV. The rapid synthesis of oxazolines and their heterogeneous oxidation to oxazoles under flow conditions. Org Biomol Chem 2015; 13:207-14. [DOI: 10.1039/c4ob02105c] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A flow process to access oxazolines and oxazoles via a rapid and practical protocol is described.
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Affiliation(s)
- Steffen Glöckner
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Duc N. Tran
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | | | - Sabine Fenner
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - Zoe E. Wilson
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | | | - Steven V. Ley
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
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44
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Kabeshov MA, Śliwiński É, Fitzpatrick DE, Musio B, Newby JA, Blaylock WDW, Ley SV. Development of a web-based platform for studying lithiation reactions in silico. Chem Commun (Camb) 2015; 51:7172-5. [PMID: 25811168 DOI: 10.1039/c5cc00782h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel integrated web-based system has been developed to rationalise and predict lithiation reactions in silico.
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Affiliation(s)
| | - Éric Śliwiński
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | | | - Biagia Musio
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | - James A. Newby
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
| | | | - Steven V. Ley
- Department of Chemistry
- University of Cambridge
- Cambridge CB2 1EW
- UK
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45
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Oger N, Le Grognec E, Felpin FX. Handling diazonium salts in flow for organic and material chemistry. Org Chem Front 2015. [DOI: 10.1039/c5qo00037h] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diazonium salts and flow chemistry are the perfect wedding for a safe handling.
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Affiliation(s)
- Nicolas Oger
- Université de Nantes; UFR des Sciences et des Techniques
- CNRS UMR 6230
- CEISAM
- 44322 Nantes Cedex 3
- France
| | - Erwan Le Grognec
- Université de Nantes; UFR des Sciences et des Techniques
- CNRS UMR 6230
- CEISAM
- 44322 Nantes Cedex 3
- France
| | - François-Xavier Felpin
- Université de Nantes; UFR des Sciences et des Techniques
- CNRS UMR 6230
- CEISAM
- 44322 Nantes Cedex 3
- France
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46
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Ingham RJ, Battilocchio C, Fitzpatrick DE, Sliwinski E, Hawkins JM, Ley SV. A Systems Approach towards an Intelligent and Self‐Controlling Platform for Integrated Continuous Reaction Sequences. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409356] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Richard J. Ingham
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Claudio Battilocchio
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Daniel E. Fitzpatrick
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Eric Sliwinski
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
| | - Joel M. Hawkins
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, CT 06340 (USA)
| | - Steven V. Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
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47
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Ingham RJ, Battilocchio C, Fitzpatrick DE, Sliwinski E, Hawkins JM, Ley SV. A systems approach towards an intelligent and self-controlling platform for integrated continuous reaction sequences. Angew Chem Int Ed Engl 2014; 54:144-8. [PMID: 25377747 PMCID: PMC4502965 DOI: 10.1002/anie.201409356] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Indexed: 12/15/2022]
Abstract
Performing reactions in flow can offer major advantages over batch methods. However, laboratory flow chemistry processes are currently often limited to single steps or short sequences due to the complexity involved with operating a multi-step process. Using new modular components for downstream processing, coupled with control technologies, more advanced multi-step flow sequences can be realized. These tools are applied to the synthesis of 2-aminoadamantane-2-carboxylic acid. A system comprising three chemistry steps and three workup steps was developed, having sufficient autonomy and self-regulation to be managed by a single operator.
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Affiliation(s)
- Richard J Ingham
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
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48
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Myers RM, Fitzpatrick DE, Turner RM, Ley SV. Flow Chemistry Meets Advanced Functional Materials. Chemistry 2014; 20:12348-66. [DOI: 10.1002/chem.201402801] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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49
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Ouchi T, Battilocchio C, Hawkins JM, Ley SV. Process Intensification for the Continuous Flow Hydrogenation of Ethyl Nicotinate. Org Process Res Dev 2014. [DOI: 10.1021/op500208j] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Takashi Ouchi
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, U.K
- Takeda Pharmaceutical Company Limited, CMC Center,
Chemical Development Laboratories, 17-85 Jusohonmachi 2-chome, Yodogawaku Osaka 532-8686, Japan
| | - Claudio Battilocchio
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, U.K
| | - Joel M. Hawkins
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Steven V. Ley
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, U.K
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