1
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Martins GM, Braga FC, de Castro PP, Brocksom TJ, de Oliveira KT. Continuous flow reactions in the preparation of active pharmaceutical ingredients and fine chemicals. Chem Commun (Camb) 2024; 60:3226-3239. [PMID: 38441166 DOI: 10.1039/d4cc00418c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Herein, we present an overview of continuous flow chemistry, including photoflow and electroflow technologies in the preparation of active pharmaceutical ingredients (APIs) and fine chemical intermediates. Examples highlighting the benefits and challenges associated with continuous flow processes, mainly involving continuous thermal, photo- and electrochemical transformations, are drawn from the relevant literature, especially our experience and collaborations in this area, with emphasis on the synthesis and prospective scale-up.
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Affiliation(s)
- Guilherme M Martins
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Felipe C Braga
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Pedro P de Castro
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Timothy J Brocksom
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
| | - Kleber T de Oliveira
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil.
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2
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Gallego-Gamo A, Pleixats R, Gimbert-Suriñach C, Vallribera A, Granados A. Hydroxytrifluoroethylation and Trifluoroacetylation Reactions via SET Processes. Chemistry 2024:e202303854. [PMID: 38183331 DOI: 10.1002/chem.202303854] [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: 11/20/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/08/2024]
Abstract
Hydroxytrifluoroethyl and trifluoroacetyl groups are of utmost importance in biologically active compounds, but methods to tether these motifs to organic architectures have been limited. Typically, the preparation of these compounds relied on the use of strong bases or multistep routes. The renaissance of radical chemistry in photocatalytic, transition metal mediated, and hydrogen atom transfer (HAT) processes have allowed the installation of these medicinally relevant fluorinated motifs. This review provides an overview of the methods available for the direct synthesis of hydroxytrifluoroethyl- and trifluoroacetyl-derived compounds governed by single-electron transfer processes.
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Affiliation(s)
- Albert Gallego-Gamo
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Roser Pleixats
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Carolina Gimbert-Suriñach
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Adelina Vallribera
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Albert Granados
- Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
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3
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Di Terlizzi L, Nicchio L, Callegari C, Scaringi S, Neuville L, Fagnoni M, Protti S, Masson G. Visible-Light-Mediated Divergent and Regioselective Vicinal Difunctionalization of Styrenes with Arylazo Sulfones. Org Lett 2023; 25:9047-9052. [PMID: 38085821 DOI: 10.1021/acs.orglett.3c03786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Activated by visible light, arylazo sulfones can serve as multifaceted reactants and are employed in diazenylation, sulfonylation, and arylation reactions under (photo)catalyst-free conditions. Such versatile reactivity enabled us to develop an operationally simple, regioselective, and tunable difunctionalization of styrenes with arylazo sulfones to produce α-sulfonyl arylhydrazones and 1,2-alkoxyarylated products in moderate to excellent yields. Furthermore, such difunctionalized products have been exploited as key building blocks for the synthesis of various heterocycles.
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Affiliation(s)
- Lorenzo Di Terlizzi
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Luca Nicchio
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Camilla Callegari
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Simone Scaringi
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Luc Neuville
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- HitCat, Seqens-CNRS joint laboratory, Seqens'Lab, 8 Rue de Rouen, 78440 Porcheville, France
| | - Maurizio Fagnoni
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Stefano Protti
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Pavia 27100, Italy
| | - Geraldine Masson
- Institut de Chimie des Substances Naturelles (ICSN), CNRS UPR 2301, Université Paris-Saclay, 1 avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
- HitCat, Seqens-CNRS joint laboratory, Seqens'Lab, 8 Rue de Rouen, 78440 Porcheville, France
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4
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Lu HL, Jin JH, Liang SC, Feng CW, Li ZM, Zhao FG, Liu X, Shen YM. Photocatalytic Three-Component Reaction for the Synthesis of Multifunctional Diaryl Sulfides. J Org Chem 2023; 88:16547-16555. [PMID: 37971809 DOI: 10.1021/acs.joc.3c02048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
A photocatalytic three-component reaction of a nitroarene, a thiophenol, and a ketone for the synthesis of multifunctional diaryl sulfides was reported using a nitro group as the nitrogen source and thiophenol as the sulfur source. Thiophenol also serves as a proton donor to reduce nitroarene to arylamine as a key intermediate for the formation of C-N and C-S bonds. Good functional group tolerance and mild reaction conditions make this method have practical synthetic value for diversified multifunctional diaryl sulfides.
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Affiliation(s)
- Hui-Ling Lu
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
| | - Jia-Hui Jin
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
| | - Shang-Chuang Liang
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
| | - Chuan-Wei Feng
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
| | - Zhi-Ming Li
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
| | - Fu-Gang Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
- Zhejiang Sci-Tech University Shengzhou Innovation Research Institute, Shengzhou 312400, PR China
| | - Xunshan Liu
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
- Zhejiang Sci-Tech University Shengzhou Innovation Research Institute, Shengzhou 312400, PR China
| | - Yong-Miao Shen
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, PR China
- Zhejiang Sci-Tech University Shengzhou Innovation Research Institute, Shengzhou 312400, PR China
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5
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Lin D, Coe M, Krishnamurti V, Ispizua-Rodriguez X, Surya Prakash GK. Recent Advances in Visible Light-Mediated Radical Fluoro-alkylation, -alkoxylation, -alkylthiolation, -alkylselenolation, and -alkylamination. CHEM REC 2023; 23:e202300104. [PMID: 37212421 DOI: 10.1002/tcr.202300104] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/20/2023] [Indexed: 05/23/2023]
Abstract
In the last few years, many reagents and protocols have been developed to allow for the efficient fluorofunctionalization of a diverse set of scaffolds ranging from alkanes, alkenes, alkynes, and (hetero)arenes. The concomitant rise of organofluorine chemistry and visible light-mediated synthesis have synergistically expanded the fields and have mutually benefitted from developments in both fields. In this context, visible light driven formations of radicals containing fluorine have been a major focus for the discovery of new bioactive compounds. This review details the recent advances and progress made in visible light-mediated fluoroalkylation and heteroatom centered radical generation.
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Affiliation(s)
- Daniel Lin
- Loker Hydrocarbon Research Institute Department of Chemistry, University of Southern California, 837 Bloom Walk, 90089-1661, Los Angeles, CA, USA
| | - Matthew Coe
- Loker Hydrocarbon Research Institute Department of Chemistry, University of Southern California, 837 Bloom Walk, 90089-1661, Los Angeles, CA, USA
| | - Vinayak Krishnamurti
- Loker Hydrocarbon Research Institute Department of Chemistry, University of Southern California, 837 Bloom Walk, 90089-1661, Los Angeles, CA, USA
| | - Xanath Ispizua-Rodriguez
- Loker Hydrocarbon Research Institute Department of Chemistry, University of Southern California, 837 Bloom Walk, 90089-1661, Los Angeles, CA, USA
| | - G K Surya Prakash
- Loker Hydrocarbon Research Institute Department of Chemistry, University of Southern California, 837 Bloom Walk, 90089-1661, Los Angeles, CA, USA
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6
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Srinivasu V, Das D, Chandu P, Ghosh KG, Sureshkumar D. Metal-Free Photoredox Four-Component Strategy to 1,3-Functionalized BCP Derivatives. Org Lett 2023; 25:5308-5313. [PMID: 37417829 DOI: 10.1021/acs.orglett.3c01877] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Trifluoromethyl bicyclo[1.1.1]pentanes (BCPs) have attracted significant attention from the scientific community and pharmaceutical industries due to their advantageous physicochemical properties as arene bioisosteres. Initial photoredox perfluoroalkylation of [1.1.1]propellane triggers the tandem reaction to the perfluoroalkyl BCP radical followed by Giese addition to an in situ generated electron-deficient alkene by Knoevenagel condensation in a four-component fashion to form 1,3-functionalized BCPs. This strategy provides easy access to various 1,3-functionalized perfluoroalkyl BCP derivatives with the added advantage of nitrile group as a functional handle to diversified transformations. This methodology offers scalability and late-stage derivatization of drug molecules with high chemoselectivity.
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Affiliation(s)
- Vinjamuri Srinivasu
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Debabrata Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Palasetty Chandu
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Krishna Gopal Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Devarajulu Sureshkumar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
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7
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Győrfi N, Tasnádi G, Gyuris M, Kotschy A. Visible-Light-Induced Synthesis of Branched Ethers via Multicomponent Reactions. J Org Chem 2023. [PMID: 37418511 DOI: 10.1021/acs.joc.3c00804] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
The Spin-Center Shift (SCS) elimination is a specific way for the generation of radicals with relevance in synthetic and biochemical pathways. The combination of SCS-mediated radical chemistry and atom-transfer radical addition (ATRA) offers new directions in diversity-oriented chemical synthesis. Herein, we report a photoredox three-component reaction of α-acyloxy-N-heterocycles as radical precursors, styrene derivatives as radical trapping agents, and alcohols as nucleophilic quenchers. The novel radical-polar crossover reaction provides access to a diverse set of branched ethers possessing high structural complexity. The utility of the transformation was also demonstrated by the synthesis of a complex drug derivative and it was easily scalable to the multigram level. The scope and limitations were also explored and a plausible mechanism was proposed.
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Affiliation(s)
- Nándor Győrfi
- Servier Research Institute of Medicinal Chemistry, Záhony u 7, 1031 Budapest, Hungary
- Eötvös Loránd University, Institute of Chemistry, Pázmány Péter s. 1/A, 1117 Budapest, Hungary
| | - Gábor Tasnádi
- Servier Research Institute of Medicinal Chemistry, Záhony u 7, 1031 Budapest, Hungary
| | - Márió Gyuris
- Servier Research Institute of Medicinal Chemistry, Záhony u 7, 1031 Budapest, Hungary
| | - Andras Kotschy
- Servier Research Institute of Medicinal Chemistry, Záhony u 7, 1031 Budapest, Hungary
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8
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Yadav P, Varma AA, A J P, Gopinath P. Photoredox mediated multicomponent reactions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pooja Yadav
- Indian Institute of Science Education and Research Tirupati Chemistry INDIA
| | - A Anagha Varma
- Indian Institute of Science Education and Research Tirupati Chemistry INDIA
| | - Punnya A J
- Indian Institute of Science Education and Research Tirupati Chemistry INDIA
| | - Purushothaman Gopinath
- Indian Institute of Science Education and Research Tirupati Chemistry Karkambadi Road 517507 Tirupati INDIA
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9
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Shennan BDA, Berheci D, Crompton JL, Davidson TA, Field JL, Williams BA, Dixon DJ. Branching out: redox strategies towards the synthesis of acyclic α-tertiary ethers. Chem Soc Rev 2022; 51:5878-5929. [PMID: 35770619 DOI: 10.1039/d1cs00669j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Acyclic α-tertiary ethers represent a highly prevalent functionality, common to high-value bioactive molecules, such as pharmaceuticals and natural products, and feature as crucial synthetic handles in their construction. As such their synthesis has become an ever-more important goal in synthetic chemistry as the drawbacks of traditional strong base- and acid-mediated etherifications have become more limiting. In recent years, the generation of highly reactive intermediates via redox approaches has facilitated the synthesis of highly sterically-encumbered ethers and accordingly these strategies have been widely applied in α-tertiary ether synthesis. This review summarises and appraises the state-of-the-art in the application of redox strategies enabling acyclic α-tertiary ether synthesis.
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Affiliation(s)
- Benjamin D A Shennan
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Diana Berheci
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Jessica L Crompton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Timothy A Davidson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Joshua L Field
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Benedict A Williams
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Darren J Dixon
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
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10
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Cotman AE, Dub PA, Sterle M, Lozinšek M, Dernovšek J, Zajec Ž, Zega A, Tomašič T, Cahard D. Catalytic Stereoconvergent Synthesis of Homochiral β-CF 3, β-SCF 3, and β-OCF 3 Benzylic Alcohols. ACS ORGANIC & INORGANIC AU 2022; 2:396-404. [PMID: 36217345 PMCID: PMC9542724 DOI: 10.1021/acsorginorgau.2c00019] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
![]()
We describe an efficient
catalytic strategy for enantio- and diastereoselective
synthesis of homochiral β-CF3, β-SCF3, and β-OCF3 benzylic alcohols. The approach is
based on dynamic kinetic resolution (DKR) with Noyori–Ikariya
asymmetric transfer hydrogenation leading to simultaneous construction
of two contiguous stereogenic centers with up to 99.9% ee, up to 99.9:0.1
dr, and up to 99% isolated yield. The origin of the stereoselectivity
and racemization mechanism of DKR is rationalized by density functional
theory calculations. Applicability of the previously inaccessible
chiral fluorinated alcohols obtained by this method in two directions
is further demonstrated: As building blocks for pharmaceuticals, illustrated
by the synthesis of heat shock protein 90 inhibitor with in vitro
anticancer activity, and in particular, needle-shaped crystals of
representative stereopure products that exhibit either elastic or
plastic flexibility, which opens the door to functional materials
based on mechanically responsive chiral molecular crystals.
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Affiliation(s)
- Andrej Emanuel Cotman
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Pavel A. Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Maša Sterle
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Matic Lozinšek
- Jožef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana, Slovenia
| | - Jaka Dernovšek
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Živa Zajec
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Anamarija Zega
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Tihomir Tomašič
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Dominique Cahard
- CNRS UMR 6014 COBRA, Normandie Université, 76821 Mont Saint Aignan, France
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11
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Coppola GA, Pillitteri S, Van der Eycken EV, You SL, Sharma UK. Multicomponent reactions and photo/electrochemistry join forces: atom economy meets energy efficiency. Chem Soc Rev 2022; 51:2313-2382. [PMID: 35244107 DOI: 10.1039/d1cs00510c] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Visible-light photoredox catalysis has been regarded as an extremely powerful tool in organic chemistry, bringing the spotlight back to radical processes. The versatility of photocatalyzed reactions has already been demonstrated to be effective in providing alternative routes for cross-coupling as well as multicomponent reactions. The photocatalyst allows the generation of high-energy intermediates through light irradiation rather than using highly reactive reagents or harsh reaction conditions. In a similar vein, organic electrochemistry has experienced a fruitful renaissance as a tool for generating reactive intermediates without the need for any catalyst. Such milder approaches pose the basis toward higher selectivity and broader applicability. In photocatalyzed and electrochemical multicomponent reactions, the generation of the radical species acts as a starter of the cascade of events. This allows for diverse reactivity and the use of reagents is usually not covered by classical methods. Owing to the availability of cheaper and more standardized photo- and electrochemical reactors, as well as easily scalable flow-setups, it is not surprising that these two fields have become areas of increased research interest. Keeping these in view, this review is aimed at providing an overview of the synthetic approaches in the design of MCRs involving photoredox catalysis and/or electrochemical activation as a crucial step with particular focus on the choice of the difunctionalized reagent.
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Affiliation(s)
- Guglielmo A Coppola
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001, Leuven, Belgium.
| | - Serena Pillitteri
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001, Leuven, Belgium.
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001, Leuven, Belgium. .,Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
| | - Upendra K Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001, Leuven, Belgium.
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12
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Zhang J, Wu J, Chang X, Wang P, Xia J, Wu J. An iron-catalyzed multicomponent reaction of cycloketone oxime esters, alkenes, DABCO·(SO2)2 and trimethylsilyl azide. Org Chem Front 2022. [DOI: 10.1039/d1qo01842f] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of β-azidosulfones starting from alkenes, cycloketone oxime esters, trimethylsilyl azide and a sulfur dioxide surrogate of DABCO·(SO2)2 under iron catalysis is developed.
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Affiliation(s)
- Jun Zhang
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Junwei Wu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Xiaotong Chang
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Peiqi Wang
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Jiemin Xia
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Jie Wu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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13
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De A, Majee A. Synthesis of various functionalized
2
H
‐azirines: An
updated library. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Aramita De
- Department of Chemistry Visva‐Bharati (A Central University) Santiniketan India
| | - Adinath Majee
- Department of Chemistry Visva‐Bharati (A Central University) Santiniketan India
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14
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Zhang J, Zhou P, Yin A, Zhang S, Liu W. Synthetic Route to Enaminones via Metal-Free Four-Component Sequential Reactions of Aryl Olefins with CHCl 3, Et 3N, and TBHP. J Org Chem 2021; 86:8980-8986. [PMID: 34125540 DOI: 10.1021/acs.joc.1c00823] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient and modular strategy was used to obtain enaminones with a wide range of functional groups via a four-component sequential reaction. This reaction proceeded under mild conditions without a catalyst in one pot. Furthermore, the products could be transformed into thiadiazoles.
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Affiliation(s)
- Jiantao Zhang
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Peng Zhou
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Aiguo Yin
- College of Biological and Food Engineering, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Shuhua Zhang
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
| | - Weibing Liu
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, P. R. China
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15
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Chen L, Ma P, Yang B, Zhao X, Huang X, Zhang J. Photocatalyst and additive-free visible light induced trifluoromethylation-arylation of N-arylacrylamides with Umemoto's reagent. Chem Commun (Camb) 2021; 57:1030-1033. [PMID: 33406204 DOI: 10.1039/d0cc07502g] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A visible light induced highly convenient and practical method for the trifluoromethyl-arylation of N-arylmethacrylamides has been developed using Umemoto's reagent as the trifluoromethyl source. This user-friendly approach can proceed under visible light irradiation without any transition metal, photocatalyst and additive at room temperature. The strategy presented here provides access to trifluoromethylated oxindoles in good to excellent yields with a broad functional group tolerance. Preliminary mechanistic experiments indicated that the reaction process involves a homolytic cleavage of Umemoto's reagent irradiated by visible light.
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Affiliation(s)
- Lingling Chen
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - Pengju Ma
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - Bo Yang
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - Xu Zhao
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Xuan Huang
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - Junmin Zhang
- International Joint Research Centre for Molecular Science, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
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16
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Huang W, Xu C, Yu J, Wang M. ZnI 2-Catalyzed Aminotrifluoromethylation Cyclization of Alkenes Using PhICF 3Cl. J Org Chem 2021; 86:1987-1999. [PMID: 33378195 DOI: 10.1021/acs.joc.0c02637] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We report here an alternatively catalytic aminotrifluoromethylation of alkenes using PhICF3Cl as a bifunctional reagent along with ZnI2 as a dual catalyst. A combined catalytic strategy was established for the intramolecular aminotrifluoromethylation of 4-pentenamines. As a result, a set of 2-trifluoroethyl-pyrrolidines was obtained in a high selectivity. Mechanism studies revealed that the reaction included an iodine anion-catalyzed radical chlorotrifluoromethylation of alkenes and a sequential Lewis acid-promoted aminocyclization of the resulting chlorotrifluoromethylated intermediates.
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Affiliation(s)
- Wanqiao Huang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jianxin Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, Changchun 130024, China
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17
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Batista GMF, de Castro PP, Dos Santos HF, de Oliveira KT, Amarante GW. Electron-Donor–Acceptor Complex-Enabled Flow Methodology for the Hydrotrifluoromethylation of Unsaturated β-Keto Esters. Org Lett 2020; 22:8598-8602. [DOI: 10.1021/acs.orglett.0c03187] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Gabriel M. F. Batista
- Department of Chemistry, Federal University of Juiz de Fora, Campus Martelos, 36036-900 Juiz de Fora-MG, Brazil
- Department of Chemistry, Federal University of São Carlos, Campus São Carlos, 13565-905 São Carlos-SP, Brazil
| | - Pedro P. de Castro
- Department of Chemistry, Federal University of Juiz de Fora, Campus Martelos, 36036-900 Juiz de Fora-MG, Brazil
| | - Hélio F. Dos Santos
- Department of Chemistry, Federal University of Juiz de Fora, Campus Martelos, 36036-900 Juiz de Fora-MG, Brazil
| | - Kleber T. de Oliveira
- Department of Chemistry, Federal University of São Carlos, Campus São Carlos, 13565-905 São Carlos-SP, Brazil
| | - Giovanni W. Amarante
- Department of Chemistry, Federal University of Juiz de Fora, Campus Martelos, 36036-900 Juiz de Fora-MG, Brazil
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18
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Lyu J, Claraz A, Vitale MR, Allain C, Masson G. Preparation of Chiral Photosensitive Organocatalysts and Their Application for the Enantioselective Synthesis of 1,2-Diamines. J Org Chem 2020; 85:12843-12855. [PMID: 32957790 DOI: 10.1021/acs.joc.0c01931] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Chiral phosphoric acid based organocatalysis and visible-light photocatalysis have both emerged as promising technologies for the sustainable production of fine chemicals. In this context, we have envisioned the design and the synthesis of a new class of chimeric catalytic entities that would feature both catalytic capabilities. Given their multitask nature, such catalysts would be particularly attractive for the development of new catalytic transformations, tandem processes in particular. Toward this goal, several BINOL-based chiral phosphoric acid backbones presenting one or two visible-light-sensitive thioxanthone moieties have been prepared and studied. The utility of these new photoactive chiral organocatalysts is then demonstrated in the enantioselective tandem three-component electrophilic amination of enecarbamates. Of note, the C1-symmetric organo/photocatalyst has shown a better catalytic activity than those presenting a C2 symmetry.
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Affiliation(s)
- Jiyuan Lyu
- Institut de Chimie des Substances Naturelles, Université Paris Saclay, CNRS, UPR2301, 1 Avenue de la Terrasse, Gif-sur-Yvette 91198 Cedex, France.,Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-sur-Yvette, France
| | - Aurélie Claraz
- Institut de Chimie des Substances Naturelles, Université Paris Saclay, CNRS, UPR2301, 1 Avenue de la Terrasse, Gif-sur-Yvette 91198 Cedex, France
| | - Maxime R Vitale
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005 Paris, France
| | - Clémence Allain
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, 91190, Gif-sur-Yvette, France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles, Université Paris Saclay, CNRS, UPR2301, 1 Avenue de la Terrasse, Gif-sur-Yvette 91198 Cedex, France
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19
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Metal-free electrochemical oxidative trifluoromethylation/C(sp2) H functionalization of quinolinones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152226] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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20
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Barata‐Vallejo S, Postigo A. New Visible‐Light‐Triggered Photocatalytic Trifluoromethylation Reactions of Carbon–Carbon Multiple Bonds and (Hetero)Aromatic Compounds. Chemistry 2020; 26:11065-11084. [DOI: 10.1002/chem.202000856] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/14/2020] [Indexed: 01/10/2023]
Affiliation(s)
- Sebastian Barata‐Vallejo
- Department of Organic ChemistryUniversidad de Buenos Aires, Facultad de Farmacia y Bioquímica Junin 954 CP 1113 Buenos Aires Argentina
- ISOFConsiglio Nazionale delle Ricerche Via P. Gobetti 101 40129 Bologna Italy
| | - Al Postigo
- Department of Organic ChemistryUniversidad de Buenos Aires, Facultad de Farmacia y Bioquímica Junin 954 CP 1113 Buenos Aires Argentina
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21
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Kammer LM, Krumb M, Spitzbarth B, Lipp B, Kühlborn J, Busold J, Mulina OM, Terentev AO, Opatz T. Photoredox-Catalyzed Four-Component Reaction for the Synthesis of Complex Secondary Amines. Org Lett 2020; 22:3318-3322. [DOI: 10.1021/acs.orglett.0c00614] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lisa Marie Kammer
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Matthias Krumb
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Benjamin Spitzbarth
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Benjamin Lipp
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Jonas Kühlborn
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Jonas Busold
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Olga M. Mulina
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospect, 119991 Moscow, Russia
| | - Alexander O. Terentev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospect, 119991 Moscow, Russia
| | - Till Opatz
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
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22
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Claraz A, Courant T, Masson G. Electrochemical Intramolecular Oxytrifluoromethylation of N-Tethered Alkenyl Alcohols: Synthesis of Functionalized Morpholines. Org Lett 2020; 22:1580-1584. [DOI: 10.1021/acs.orglett.0c00176] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aurélie Claraz
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301,
Université Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, Gif-sur-Yvette 91198 Cedex, France
| | - Thibaut Courant
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301,
Université Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, Gif-sur-Yvette 91198 Cedex, France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301,
Université Paris-Sud, Université Paris-Saclay, 1, av. de la Terrasse, Gif-sur-Yvette 91198 Cedex, France
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23
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De Zordo-Banliat A, Barthélémy L, Bourdreux F, Tuccio B, Dagousset G, Pégot B, Magnier E. Visible-Light-Induced Metal-Free Trifluoromethylselenolation of Electron-Rich Heteroarenes Using the Nucleophilic [Me4N][SeCF3] Reagent. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901793] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Arnaud De Zordo-Banliat
- Institut Lavoisier de Versailles, UMR 8180; Université de Versailles-Saint-Quentin; 78035 Versailles Cedex France
| | - Lucas Barthélémy
- Institut de Chimie Radicalaire, UMR 7273; Aix-Marseille Université-CNRS; 13397 Marseille Cedex 20 France
| | - Flavien Bourdreux
- Institut Lavoisier de Versailles, UMR 8180; Université de Versailles-Saint-Quentin; 78035 Versailles Cedex France
| | - Béatrice Tuccio
- Institut de Chimie Radicalaire, UMR 7273; Aix-Marseille Université-CNRS; 13397 Marseille Cedex 20 France
| | - Guillaume Dagousset
- Institut Lavoisier de Versailles, UMR 8180; Université de Versailles-Saint-Quentin; 78035 Versailles Cedex France
| | - Bruce Pégot
- Institut Lavoisier de Versailles, UMR 8180; Université de Versailles-Saint-Quentin; 78035 Versailles Cedex France
| | - Emmanuel Magnier
- Institut Lavoisier de Versailles, UMR 8180; Université de Versailles-Saint-Quentin; 78035 Versailles Cedex France
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24
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Keerthika K, Nath S, Geetharani K. Transition-metal-free trifluoromethylative difunctionalization of olefins and alkynes: approaches and challenges ahead. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01692f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Transition metal free trifluoromethylative difunctionalization of olefins and alkynes represents one of the most efficient methods to generate pharmaceutically and agrochemically important organofluoride compounds.
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Affiliation(s)
- K. Keerthika
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore-560012
- India
| | - Shounak Nath
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore-560012
- India
| | - K. Geetharani
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore-560012
- India
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25
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Gao F, Meng FX, Du JY, Zhang S, Huang HL. One-Step Synthesis of Trifluoroethylated Chromones via Radical Cascade Cyclization-Coupling of 2-(Allyloxy)arylaldehydes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901636] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fei Gao
- Institute of Molecular Medicine; Renji Hospital, School of Medicine; Shanghai Jiao Tong University; 200127 Shanghai China
| | - Fan-Xiao Meng
- College of Chemistry and Chemical Engineering; Liaocheng University; 252059 Liaocheng Shandong China
| | - Ji-Yuan Du
- College of Chemistry and Chemical Engineering; Liaocheng University; 252059 Liaocheng Shandong China
| | - Shiyan Zhang
- Institute of Molecular Medicine; Renji Hospital, School of Medicine; Shanghai Jiao Tong University; 200127 Shanghai China
| | - Hong-Li Huang
- College of Chemistry and Chemical Engineering; Liaocheng University; 252059 Liaocheng Shandong China
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