1
|
Piejko M, Moran J, Lebœuf D. Difunctionalization Processes Enabled by Hexafluoroisopropanol. ACS ORGANIC & INORGANIC AU 2024; 4:287-300. [PMID: 38855339 PMCID: PMC11157514 DOI: 10.1021/acsorginorgau.3c00067] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 06/11/2024]
Abstract
In the past 5 years, hexafluoroisopropanol (HFIP) has been used as a unique solvent or additive to enable challenging transformations through substrate activation and stabilization of reactive intermediates. In this Review, we aim at describing difunctionalization processes which were unlocked when HFIP was involved. Specifically, we focus on cyclizations and additions to alkenes, alkynes, epoxides, and carbonyls that introduce a wide range of functional groups of interest.
Collapse
Affiliation(s)
- Maciej Piejko
- Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), CNRS UMR 7006, Université
de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | - Joseph Moran
- Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), CNRS UMR 7006, Université
de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
- Department
of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
- Institut
Universitaire de France (IUF), 75005 Paris, France
| | - David Lebœuf
- Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), CNRS UMR 7006, Université
de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| |
Collapse
|
2
|
Chaudhary D, Kuram MR. Regio- and Stereoselective Hexafluoroisopropoxylation and Trifluoroethoxylation of Allenamides. J Org Chem 2024; 89:7347-7351. [PMID: 38163927 DOI: 10.1021/acs.joc.3c02457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Incorporating fluorinated moieties into organic molecules is an attractive strategy to enhance drug-like properties. Herein, we have developed a simple and self-promoted protocol for hexafluoroisopropoxylation and trifluoroethoxylation of allenamides with fluorinated alcohols such as HFIP and TFE. The reaction provided the fluoroalkoxylated products in a regio- and stereoselective manner in good to moderate yields under mild conditions.
Collapse
Affiliation(s)
- Dhananjay Chaudhary
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Malleswara Rao Kuram
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
3
|
Wang L, Zhong Y, Wang H, Malyi OI, Wang F, Zhang Y, Hong G, Tang Y. New Emerging Fast Charging Microscale Electrode Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307027. [PMID: 38018336 DOI: 10.1002/smll.202307027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 10/24/2023] [Indexed: 11/30/2023]
Abstract
Fast charging lithium (Li)-ion batteries are intensively pursued for next-generation energy storage devices, whose electrochemical performance is largely determined by their constituent electrode materials. While nanosizing of electrode materials enhances high-rate capability in academic research, it presents practical limitations like volumetric packing density and high synthetic cost. As an alternative to nanosizing, microscale electrode materials cannot only effectively overcome the limitations of the nanosizing strategy but also satisfy the requirement of fast-charging batteries. Therefore, this review summarizes the new emerging microscale electrode materials for fast charging from the commercialization perspective. First, the fundamental theory of electronic/ionic motion in both individual active particles and the whole electrode is proposed. Then, based on these theories, the corresponding optimization strategies are summarized toward fast-charging microscale electrode materials. In addition, advanced functional design to tackle the mechanical degradation problems related to next generation high capacity alloy- and conversion-type electrode materials (Li, S, Si et al.) for achieving fast charging and stable cycling batteries. Finally, general conclusions and the future perspective on the potential research directions of microscale electrode materials are proposed. It is anticipated that this review will provide the basic guidelines for both fundamental research and practical applications of fast-charging batteries.
Collapse
Affiliation(s)
- Litong Wang
- School of Science, Qingdao University of Technology, Qingdao, 266520, P. R. China
| | - Yunlei Zhong
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems & Division of Advanced Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Huibo Wang
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Oleksandr I Malyi
- Centre of Excellence ENSEMBLE3 Sp. z o. o., Wolczynska Str. 133, 01-919, Warsaw, Poland
| | - Feng Wang
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yanyan Zhang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Guo Hong
- Department of Materials Science and Engineering & Center of Super-Diamond and Advanced Films, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Yuxin Tang
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| |
Collapse
|
4
|
Flores-Bernal G, Miranda LD. A Copper-Mediated Radical α-Heteroarylation of Nitriles with Azobis(alkylcarbonitriles). Org Lett 2024; 26:1128-1133. [PMID: 38315447 PMCID: PMC10877592 DOI: 10.1021/acs.orglett.3c03727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/16/2023] [Accepted: 01/30/2024] [Indexed: 02/07/2024]
Abstract
A new practical method has been developed for the α-heteroarylation of aliphatic nitriles with heteroarenes and azobis(alkylcarbonitriles) using Cu(OAc)2 as an oxidizing agent. This method allows the easy construction of nitrile-, aryl-, and dialkyl-bearing quaternary carbon centers from readily available building blocks, without requiring prefunctionalization steps. This reaction is based on adding cyanodialkyl radicals onto heteroarenes, including benzofurans, furans, pyrroles, and indoles. The resulting α-heteroaryl nitriles are useful synthetic intermediates and pharmacophores in biologically active molecules.
Collapse
Affiliation(s)
- Gustavo
G. Flores-Bernal
- Department of Organic Chemistry,
Instituto de Química, Universidad Nacional Autónoma
de México, Circuito Exterior, Ciudad
Universitaria, 04510 Mexico City, Mexico
| | - Luis D. Miranda
- Department of Organic Chemistry,
Instituto de Química, Universidad Nacional Autónoma
de México, Circuito Exterior, Ciudad
Universitaria, 04510 Mexico City, Mexico
| |
Collapse
|
5
|
Kuroda Y, Krell M, Kurokawa K, Takasu K. Synthesis of mesoionic triazolones via a formal [3+2] cycloaddition between 4-phenyl-1,2,4-triazoline-3,5-dione and alkynes. Chem Commun (Camb) 2024; 60:1719-1722. [PMID: 38240015 DOI: 10.1039/d3cc05088b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
1,2,4-Triazoline-3,5-diones (TADs) are versatile reagents and have found widespread adoption in chemical science. Despite their remarkable reactivity toward a wide array of unsaturated hydrocarbons, the chemical reaction between TADs and alkynes has remained largely unexplored. Herein, we demonstrate that 1,1,1,3,3,3-hexafluoro-2-propanol facilitates the unusual [3+2] cycloaddition between 4-phenyl-1,2,4-triazoline-3,5-dione and alkynes, resulting in the formation of unprecedented mesoionic triazolones. Moreover, the structural properties of the resulting triazolone have been investigated by employing X-ray diffraction analysis and Density Functional Theory (DFT) calculations.
Collapse
Affiliation(s)
- Yusuke Kuroda
- Graduate School of Pharmaceutical Sciences, Kyoto University Yoshida, Kyoto 606-8501, Japan.
- Research Foundation ITSUU Laboratory, Kawasaki, Kanagawa 213-0012, Japan
| | - Maya Krell
- Graduate School of Pharmaceutical Sciences, Kyoto University Yoshida, Kyoto 606-8501, Japan.
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Kazuma Kurokawa
- Graduate School of Pharmaceutical Sciences, Kyoto University Yoshida, Kyoto 606-8501, Japan.
| | - Kiyosei Takasu
- Graduate School of Pharmaceutical Sciences, Kyoto University Yoshida, Kyoto 606-8501, Japan.
| |
Collapse
|
6
|
Gómez-Gil S, Solas M, Suárez-Pantiga S, Sanz R. Brønsted Acid-Catalyzed Synthesis of 4-Functionalized Tetrahydrocarbazol-1-ones from 1,4-Dicarbonylindole Derivatives. J Org Chem 2024; 89:505-520. [PMID: 38085096 PMCID: PMC10777410 DOI: 10.1021/acs.joc.3c02248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 01/06/2024]
Abstract
A p-toluenesulfonic acid-catalyzed cascade reaction is reported for the synthesis of 4-functionalized tetrahydrocarbazolones via the reaction of 4-(indol-2-yl)-4-oxobutanal derivatives with a variety of nucleophiles in acetonitrile or hexafluoroisopropanol. After the initial intramolecular Friedel-Crafts hydroxyalkylation, the 3-indolylmethanol intermediate is subsequently activated and reacted with the external nucleophile. The reaction conditions are crucial to avoid alternative reaction pathways, allowing direct substitution reaction with thiols, (hetero)arenes, alkenes, or sulfinates. The procedure features high overall yields to access a diverse family of compounds bearing the tetrahydrocarbazole core.
Collapse
Affiliation(s)
- Sara Gómez-Gil
- Área de Química
Orgánica, Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain
| | - Marta Solas
- Área de Química
Orgánica, Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain
| | - Samuel Suárez-Pantiga
- Área de Química
Orgánica, Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain
| | - Roberto Sanz
- Área de Química
Orgánica, Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain
| |
Collapse
|
7
|
Hu T, Jaber M, Tran G, Bouyssi D, Monteiro N, Amgoune A. Photoinduced NiH Catalysis with Trialkylamines for the Stereodivergent Transfer Semi-Hydrogenation of Alkynes. Chemistry 2023; 29:e202301636. [PMID: 37466982 DOI: 10.1002/chem.202301636] [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: 05/23/2023] [Revised: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
We report a selectivity-switchable nickel hydride-catalyzed methodology that enables the stereocontrolled semi-reduction of internal alkynes to E- or Z-alkenes under very mild conditions. The proposed transfer semi-hydrogenation process involves the use of a dual nickel/photoredox catalytic system and triethylamine, not only as a sacrificial reductant, but also as a source of hydrogen atoms. Mechanistic studies revealed a pathway involving photo-induced generation of nickel hydride, syn-hydronickelation of alkyne, and alkenylnickel isomerization as key steps. Remarkably, mechanistic experiments indicate that the control of the stereoselectivity is not ensuing from a post-reduction alkene photoisomerization under our conditions. Instead, we demonstrate that the stereoselectivity of the reaction is dependent on the rate of a final protonolysis step which can be tuned by adjusting the pKa of an alcohol additive.
Collapse
Affiliation(s)
- Tingjun Hu
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), Univ Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
| | - Mohammad Jaber
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), Univ Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
| | - Gaël Tran
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), Univ Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
| | - Didier Bouyssi
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), Univ Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
| | - Nuno Monteiro
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), Univ Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
| | - Abderrahmane Amgoune
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS, UMR 5246 du CNRS), Univ Lyon, Université Lyon 1, 1 rue Victor Grignard, 69100, Villeurbanne, France
- Institut Universitaire de France (IUF), 1 rue Descartes, 75231, Paris, France
| |
Collapse
|
8
|
Han GU, Kim S, Han SH, Maeng C, Ko GH, Lee K, Noh HC, Lee PH. Iridium(III)-Catalyzed C-H Cyclization of Sulfoximines with Diazo Meldrum's Acids for the Synthesis of Cyclic Sulfoximines. J Org Chem 2023; 88:11702-11711. [PMID: 37427877 DOI: 10.1021/acs.joc.3c00984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Iridium(III)-catalyzed C-H cyclization of sulfoximines with diazo Meldrum's acid provided cyclic sulfoximines with a carbonyl group in good to excellent yields. These compounds were easily converted into unsubstituted and arylated sulfoximines. Moreover, the vinyl triflates obtained from the cyclic sulfoximines underwent palladium(II)-catalyzed cross-coupling reactions with a variety of aryl, arylalkynyl, and heteroatom (N and S) nucleophiles, affording a wide range of monosubstituted sulfoximines in high yields.
Collapse
Affiliation(s)
- Gi Uk Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Suhui Kim
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sang Hoon Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Chanyoung Maeng
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Gi Hoon Ko
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyungsup Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Hee Chan Noh
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| |
Collapse
|
9
|
Tomanik M, Yu JQ. Palladium-Catalyzed Stitching of 1,3-C(sp 3)-H Bonds with Dihaloarenes: Short Synthesis of (±)-Echinolactone D. J Am Chem Soc 2023; 145:17919-17925. [PMID: 37526629 PMCID: PMC11139438 DOI: 10.1021/jacs.3c05383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Palladium-catalyzed C(sp3)-H functionalization presents an efficient strategy to construct a variety of carbon-carbon bonds. However, application of this approach toward the preparation of five-membered benzo-fused carbocycles via the most simplifying C-H activation logic has not been realized. In this Article, we report a palladium-catalyzed annulation reaction between gem-dimethyl-containing amides and 1-bromo-2-iodoarenes that effectively constructs two Calkyl-Caryl bonds and provides access to a variety of five-membered benzo-fused compounds. In this transformation, the dihaloarene is stitched to the gem-dimethyl moiety via two sequential β-C(sp3)-H arylations utilizing the differential reactivity of the 1,2-difunctionalized electrophile. This annulation reaction is enabled by a dual-ligand system comprising of an N-acyl glycine and a pyridine-3-sulfonic acid that synergistically promotes the palladium stitching and provides the bicyclic products. This method displays a broad substrate scope and shows excellent amide compatibility. We also demonstrate the synthetic potential of this annulation by synthesizing echinolactone D.
Collapse
Affiliation(s)
- Martin Tomanik
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| |
Collapse
|
10
|
Hu X, Zhao X, Lv X, Wu YB, Bu Y, Lu G. Ab Initio Metadynamics Simulations of Hexafluoroisopropanol Solvent Effects: Synergistic Role of Solvent H-Bonding Networks and Solvent-Solute C-H/π Interactions. Chemistry 2023; 29:e202203879. [PMID: 36575142 DOI: 10.1002/chem.202203879] [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: 12/11/2022] [Accepted: 12/27/2022] [Indexed: 12/29/2022]
Abstract
The solvent effects in Friedel-Crafts cycloalkylation of epoxides and Cope rearrangement of aldimines were investigated by using ab initio molecular dynamics simulations. Explicit molecular treatments were applied for both reactants and solvents. The reaction mechanisms were elucidated via free energy calculations based on metadynamics simulations. The results reveal that both reactions proceed in a concerted fashion. Key solvent-substrate interactions are identified from the structures of transition states with explicit solvent molecules. The remarkable promotion effect of hexafluoroisopropanol solvent is ascribed to the synergistic effect of H-bonding networks and C-H/π interactions with substrates.
Collapse
Affiliation(s)
- Xinmin Hu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Xia Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Xiangying Lv
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Yan-Bo Wu
- Key Lab for Materials of Energy Conversion and Storage of Shanxi Province, and Key Lab of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi, 030006, P. R. China
| | - Yuxiang Bu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan, Shandong, 250100, P. R. China
| |
Collapse
|
11
|
Muller C, Horký F, Vayer M, Golushko A, Lebœuf D, Moran J. Synthesis of functionalised isochromans: epoxides as aldehyde surrogates in hexafluoroisopropanol. Chem Sci 2023; 14:2983-2989. [PMID: 36937595 PMCID: PMC10016621 DOI: 10.1039/d2sc06692k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
The oxa-Pictet-Spengler reaction is arguably the most straightforward and modular way to construct the privileged isochroman motif, but its scope is largely limited to benzaldehyde derivatives and to electron-rich β-phenylethanols that lack substitution along the aliphatic chain. Here we describe a variant of this reaction starting from an epoxide, rather than an aldehyde, that greatly expands the scope and rate of the reaction (<1 h, 20 °C). Besides facilitating the initial Meinwald rearrangement, the use of hexafluoroisopropanol (HFIP) as a solvent expands the electrophile scope to include partners equivalent to ketones, aliphatic aldehydes, and phenylacetyl aldehydes, and the nucleophile scope to include modestly electronically deactivated and highly substituted β-phenylethanols. The products could be easily further derivatised in the same pot by subsequent ring-opening, reductions, and intra- and intermolecular Friedel-Crafts reactions, also in HFIP. Finally, owing to the high pharmacological relevance of the isochroman motif, the synthesis of drug analogues was demonstrated.
Collapse
Affiliation(s)
- Cyprien Muller
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Filip Horký
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Marie Vayer
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Andrei Golushko
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - David Lebœuf
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Joseph Moran
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| |
Collapse
|
12
|
Pozhydaiev V, Vayer M, Fave C, Moran J, Lebœuf D. Synthesis of Unprotected β-Arylethylamines by Iron(II)-Catalyzed 1,2-Aminoarylation of Alkenes in Hexafluoroisopropanol. Angew Chem Int Ed Engl 2023; 62:e202215257. [PMID: 36541580 DOI: 10.1002/anie.202215257] [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: 10/17/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
β-Arylethylamines are prevalent structural motifs in molecules exhibiting biological activity. Here we report a sequential one-pot protocol for the 1,2-aminoarylation of alkenes with hydroxylammonium triflate salts and (hetero)arenes. Unlike existing methods, this reaction provides a direct entry to unprotected β-arylethylamines with remarkable functional group tolerance, allowing key drug-oriented functional groups to be installed in a two-step process. The use of hexafluoroisopropanol as a solvent in combination with an iron(II) catalyst proved essential to reaching high-value nitrogen-containing molecules.
Collapse
Affiliation(s)
- Valentyn Pozhydaiev
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000, Strasbourg, France
| | - Marie Vayer
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000, Strasbourg, France
| | - Claire Fave
- Laboratoire d'Electrochimie Moléculaire, Université Paris Cité, 75013, Paris, France
| | - Joseph Moran
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000, Strasbourg, France.,Institut Universitaire de France (IUF), 75005, Paris, France
| | - David Lebœuf
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000, Strasbourg, France
| |
Collapse
|
13
|
Braire J, Macé A, Zaier R, Cordier M, Vidal J, Lalli C, Martel A, Carreaux F. Catalytic Enantioselective Allylboration and Related Reactions of Isatins Promoted by Chiral BINOLs: Scope and Mechanistic Studies. J Org Chem 2023; 88:1469-1492. [PMID: 36690446 DOI: 10.1021/acs.joc.2c02476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An improvement in the catalytic enantioselective allylboration of isatins with 2-allyl-1,3,2-dioxaborolane in the presence of chiral BINOL derivatives is reported, offering an efficient one-step access to enantioenriched N-unprotected 3-allyl-3-hydroxy-2-oxindoles. This catalytic process is also effective for the crotylboration reaction with enantiomeric ratios (er) up to 97:3, as well as for the asymmetric synthesis of homopropargylic alcohols via an allenyl addition to indoline-2,3-diones. Origins of the high enantioselectivity in chiral BINOL-catalyzed allylboration of isatins were examined by DFT calculations. A hypothetical scenario suggested a crucial internal hydrogen bonding between the amide group (C═O···H-O) and the ethylene hydroxyl of the transient chiral mixed boronate ester, generating a rigid and stabilized system that favors the addition of the allylboron species to the Re face of the ketone function. The key role of the alcohol additive (t-BuOH or t-AmOH) in the enantioselective allylboration reaction of isatins has also been shown on the basis of a kinetics study and computational calculations by favoring the transesterification of the 2-allyl-1,3,2-dioxaborolane with BINOL via proton transfer processes.
Collapse
Affiliation(s)
- Julien Braire
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Aurélie Macé
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Rania Zaier
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS-Université du Maine, Avenue Olivier Messiaen, 72085 Cedex Le Mans, France
| | - Marie Cordier
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Joëlle Vidal
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Claudia Lalli
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Arnaud Martel
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS-Université du Maine, Avenue Olivier Messiaen, 72085 Cedex Le Mans, France
| | - François Carreaux
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| |
Collapse
|
14
|
Sonet D, Cayla M, Méreau R, Morvan E, Lacoudre A, Vanthuyne N, Albalat M, Bassani DM, Scalabre A, Pouget E, Bibal B. Chiral Anthranyl Trifluoromethyl Alcohols: Structures, Oxidative Dearomatization and Chiroptical Properties. Chemistry 2022; 28:e202202695. [PMID: 36316221 DOI: 10.1002/chem.202202695] [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: 08/29/2022] [Indexed: 11/05/2022]
Abstract
Chiral trifluoromethyl alcohol groups were introduced at the hindered ortho positions of 9,10-diphenylanthracenes to investigate their effects on the physical properties and reactivity towards oxidative dearomatization. In such compact structures, the position in different quadrants and the preferred orientation of the -CH(OH)CF3 groups were determined by the relative and absolute configurations of each stereoisomer, respectively. As a consequence, the stereochemistry governs the organization of the H-bonded molecules in single crystals (homochiral dimers vs ribbon), whereas in chlorinated solvents, they all behave as discrete compounds. Concerning their reactivity, the stereospecific dearomative oxidation of these molecules leads to 9,10-bis-spiro-isobenzofuran-anthracenes, when using organic single-electron transfer oxidants. The chiroptical properties of the alcohols and the corresponding dearomatized products were compared and showed an important modulation of the intensity.
Collapse
Affiliation(s)
- Dorian Sonet
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Mattéo Cayla
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Raphaël Méreau
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Estelle Morvan
- Institut Européen de Chimie et Biologie UAR3033 CNRS, University of Bordeaux, INSERM US001, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Aline Lacoudre
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Nicolas Vanthuyne
- Centrale Marseille, iSm2, Aix-Marseille Université, CNRS, 52 avenue Escadrille Normandie Niemen, 13013, Marseille, France
| | - Muriel Albalat
- Centrale Marseille, iSm2, Aix-Marseille Université, CNRS, 52 avenue Escadrille Normandie Niemen, 13013, Marseille, France
| | - Dario M Bassani
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| | - Antoine Scalabre
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Emilie Pouget
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Brigitte Bibal
- Institut des Sciences Moléculaires UMR CNRS 5255, Univ. Bordeaux, CNRS, Bordeaux INP, 351 cours de la Libération, 33400, Talence, France
| |
Collapse
|
15
|
Nakamura A, Imamiya A, Ikegami Y, Rao F, Yuguchi H, Miki Y, Maegawa T. Selective synthesis of 3-formylbenzofuran and 3-acylbenzofuran using a chalcone rearrangement strategy. RSC Adv 2022; 12:30426-30431. [PMID: 36337936 PMCID: PMC9593264 DOI: 10.1039/d2ra06080a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/13/2022] [Indexed: 12/01/2022] Open
Abstract
We developed a method for highly selective synthesis of two benzofuran isomers, by rearranging and subsequently transforming 2-hydroxychalcones. Depending on the reaction conditions, synthesis of 3-formylbenzofurans, unconventional products, and 3-acylbenzofurans was achieved through cyclized 2,3-dihydrobenzofurans obtained from the rearranged products. The facile synthesis of 3-formylbenzofurans facilitated synthesis of the natural product, puerariafuran, from the corresponding chalcone.
Collapse
Affiliation(s)
- Akira Nakamura
- School of Pharmaceutical Sciences, Kindai University3-4-1 KowakaeHigashi-osakaOsaka 577-8502Japan
| | - Akira Imamiya
- School of Pharmaceutical Sciences, Kindai University3-4-1 KowakaeHigashi-osakaOsaka 577-8502Japan
| | - Yuichiro Ikegami
- School of Pharmaceutical Sciences, Kindai University3-4-1 KowakaeHigashi-osakaOsaka 577-8502Japan
| | - Fei Rao
- School of Pharmaceutical Sciences, Kindai University3-4-1 KowakaeHigashi-osakaOsaka 577-8502Japan
| | - Harumi Yuguchi
- School of Pharmaceutical Sciences, Kindai University3-4-1 KowakaeHigashi-osakaOsaka 577-8502Japan
| | - Yasuyoshi Miki
- School of Pharmaceutical Sciences, Kindai University3-4-1 KowakaeHigashi-osakaOsaka 577-8502Japan
| | - Tomohiro Maegawa
- School of Pharmaceutical Sciences, Kindai University3-4-1 KowakaeHigashi-osakaOsaka 577-8502Japan
| |
Collapse
|
16
|
Vayer M, Mayer RJ, Moran J, Lebœuf D. Leveraging the Hydroarylation of α-(Trifluoromethyl)styrenes to Access Trifluoromethylated All-Carbon Quaternary Centers. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marie Vayer
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
| | - Robert J. Mayer
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
| | - Joseph Moran
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
- Institut Universitaire de France (IUF), 75005 Paris, France
| | - David Lebœuf
- Université de Strasbourg, CNRS, ISIS UMR
7006, 67000 Strasbourg, France
| |
Collapse
|
17
|
Wu M, Duan Z, Liu Q, Gao H, Zhou Z, Yi W, Wang S. Ca(NTf2)2/HFIP‐Mediated Direct and Mild Rearrangement of Cyclopropyl Carbinols to E‐Homoallylic Triflimides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Min Wu
- Guangzhou Medical University School of Pharmaceutical Sciences CHINA
| | - Zhiqiang Duan
- Guangzhou Medical University School of Pharmaceutical Sciences CHINA
| | - Qingmei Liu
- Guangzhou Medical University School of Pharmaceutical Sciences CHINA
| | - Hui Gao
- Guangzhou Medical University School of Pharmaceutical Sciences CHINA
| | - Zhi Zhou
- Guangzhou Medical University School of Pharmaceutical Sciences CHINA
| | - Wei Yi
- Guangzhou Medical University School of Pharmaceutical Sciences CHINA
| | - Shengdong Wang
- Guangzhou Medical University school of pharmaceutical science Xinzao, Panyu District 511436 guangzhou CHINA
| |
Collapse
|
18
|
Fujita T, Fukuda T, Suzuki N, Ichikawa J. Rapid Synthesis of Fused Polycyclic Heteroaromatics via Successive Vinylic/Aromatic C–F Bond Activation. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takeshi Fujita
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Takuya Fukuda
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Naoto Suzuki
- University of Tsukuba: Tsukuba Daigaku Division of Chemistry JAPAN
| | - Junji Ichikawa
- University of Tsukuba Department of Chemistry 1-1-1 Tennodai 305-8571 Tsukuba JAPAN
| |
Collapse
|
19
|
Saunthwal RK, Saini KM, Grimblat N, Danodia AK, Kumar S, Gandon V, Verma AK. Expedient Access to Polyaromatic Biaryls by Unconventional Ag-Catalyzed Cycloaromatization of Alkynylthiophenes and Au-Catalyzed Double C-H Activation. Org Lett 2022; 24:5018-5022. [PMID: 35799326 DOI: 10.1021/acs.orglett.2c01665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An unconventional approach for the regioselective synthesis of polyaromatic biaryls via site-selective Ag-catalyzed twofold electrophilic cycloisomerization followed by Au-catalyzed double C-H activation is described. The developed process allows the synthesis of highly decorated biaryls with excellent regioselectivity. As revealed by DFT computations, the reaction represents a rare example of C1-C5 endo-exo and C1-C6 endo-endo cycloaromatization. The formation of the 6-membered ring is predicted to be the fruit of an uncommon SEAr on a vinyl carbocation.
Collapse
Affiliation(s)
| | | | - Nicolas Grimblat
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France.,Instituto de Química Rosario (IQUIR, CONICET-UNR) and Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531 (S2002LRK), Rosario, República Argentina
| | | | - Sushil Kumar
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Vincent Gandon
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France.,Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), CNRS UMR 8182, Université Paris-Saclay, Bâtiment 420, 91405 Orsay cedex, France
| | - Akhilesh K Verma
- Department of Chemistry, University of Delhi, Delhi-110007, India.,Institution of Eminence, University of Delhi, Delhi-110007, India
| |
Collapse
|
20
|
Ka CH, Lee DS, Cho EJ. Solvent‐dependent Photochemistry for Diverse and Selective C‐H Functionalization of 2‐tert‐Butyl‐1,4‐Benzoquinones. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cheol Hyeon Ka
- Chung-Ang University - Seoul Campus: Chung-Ang University Chemistry KOREA, REPUBLIC OF
| | - Da Seul Lee
- Chung-Ang University - Seoul Campus: Chung-Ang University Chemistry KOREA, REPUBLIC OF
| | - Eun Jin Cho
- Chung-Ang University Department of Chemistry 84 Heukseok-Ro, Dongjak-Gu 156-756 Seoul KOREA, REPUBLIC OF
| |
Collapse
|
21
|
Yu C, Huang R, Patureau FW. Direct Dehydrogenative Access to Unsymmetrical Phenones. Angew Chem Int Ed Engl 2022; 61:e202201142. [PMID: 35128810 PMCID: PMC9314079 DOI: 10.1002/anie.202201142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Indexed: 11/09/2022]
Abstract
The first non‐directed dehydrogenative phenone coupling method of methylarenes with aromatic C−H bonds, displaying a large substrate scope, is herein reported. This reaction represents a far more direct atom‐ and step‐efficient alternative to the classical Friedel–Crafts or Suzuki–Miyaura derived acylation reactions. The method can be carried out on a gram scale and was successfully applied to the synthesis of several Ketoprofen drug analogues.
Collapse
Affiliation(s)
- Congjun Yu
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Raolin Huang
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Frederic W. Patureau
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| |
Collapse
|
22
|
Kuroda Y. Remarkable Solvent Effect of Fluorinated Alcohols on Azo–Ene Reactions. Chem Pharm Bull (Tokyo) 2022; 70:359-361. [DOI: 10.1248/cpb.c22-00076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yusuke Kuroda
- Graduate School of Pharmaceutical Sciences, Kyoto University
| |
Collapse
|
23
|
Shen YB, Zhao JQ, Ge ZZ, Wang ZH, You Y, Zhou MQ, Yuan WC. HFIP-promoted intramolecular dearomative annulation of pyridylacetate derivatives to access functionalized 3,4-dihydroquinolizin-2-ones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
24
|
Li Y, Zhang J, Zhao X. Importance of additive effects on the reactivity of Ag catalyzed domino cyclization: a computational chemistry survey. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
25
|
Pereira A, Albornoz C, Trofymchuk OS. Data-Driven Analysis of Reactions Catalyzed by [CoCp*(CO)I 2]. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Alfredo Pereira
- Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Fisicoquímica, Universidad de Chile, Sergio Livingstone 1007, Casilla 233, Santiago, Metropolitan Region 8380492, Chile
| | - Camilo Albornoz
- C. Albornoz, Instituto de Química de Recursos Naturales, Universidad de Talca, Talca, Maule Region 3460000, Chile
| | - Oleksandra S. Trofymchuk
- Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Fisicoquímica, Universidad de Chile, Sergio Livingstone 1007, Casilla 233, Santiago, Metropolitan Region 8380492, Chile
| |
Collapse
|
26
|
Yang J, Liu S, Gui J, Xiong D, Li J, Wang Z, Ren J. HFIP-Promoted Selective Hydroxyalkylation of Aniline Derivatives with Arylglyoxal Hydrates. J Org Chem 2022; 87:6352-6361. [DOI: 10.1021/acs.joc.1c03155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jianguo Yang
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, PR China
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, Zhejiang, PR China
| | - Saimei Liu
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, PR China
| | - Jing Gui
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, Zhejiang, PR China
| | - Daokai Xiong
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, Zhejiang, PR China
| | - Jinshan Li
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, Zhejiang, PR China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, Zhejiang, PR China
| | - Jun Ren
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, PR China
| |
Collapse
|
27
|
Peng S, He J, Yang L, Zhang H, Li H, Lang M, Chen C, Wang J. PIDA-Promoted/HFIP-Controlled Dearomative Spirocyclization of Phenolic Ketones via a Spirocyclohexadienone-Oxocarbenium Cation Species. J Org Chem 2022; 87:6247-6262. [DOI: 10.1021/acs.joc.2c00482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shiyong Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Jieyin He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Liangliang Yang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Hong Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Ming Lang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Chao Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, P. R. China
| | - Jian Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, P. R. China
| |
Collapse
|
28
|
Athavan G, Tanner TFN, Whitwood AC, Fairlamb IJS, Perutz RN. Direct Evidence for Competitive C–H Activation by a Well-Defined Silver XPhos Complex in Palladium-Catalyzed C–H Functionalization. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Robin N. Perutz
- Department of Chemistry, University of York, York YO10 5DD, U.K
| |
Collapse
|
29
|
Matsuda C, Igarashi R, Katagiri H, Murase T. Skeletal Transformation Triggered by C−F Bond Activation after Photochemical Rearrangement of Fluorinated [7]Helicenes. Chemistry 2022; 28:e202200132. [DOI: 10.1002/chem.202200132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Chikako Matsuda
- Faculty of Science Yamagata University 1-4-12 Kojirakawa-machi Yamagata Yamagata 990-8560 Japan
| | - Ryo Igarashi
- Faculty of Science Yamagata University 1-4-12 Kojirakawa-machi Yamagata Yamagata 990-8560 Japan
| | - Hiroshi Katagiri
- Graduate School of Science and Engineering Yamagata University 4-3-16 Jonan Yonezawa Yamagata 992-8510 Japan
| | - Takashi Murase
- Faculty of Science Yamagata University 1-4-12 Kojirakawa-machi Yamagata Yamagata 990-8560 Japan
| |
Collapse
|
30
|
Yu C, Huang R, Patureau FW. Direkter Dehydrierender Zugang zu unsymmetrischen Phenonen. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Congjun Yu
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Raolin Huang
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Frederic W. Patureau
- Institut für Organische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| |
Collapse
|
31
|
Della-Negra O, Cirillo Y, Brotin T, Dutasta JP, Saaidi PL, Chatelet B, Martinez A. Access to the Syn diastereomers of cryptophane cages using HFIP. Chem Commun (Camb) 2022; 58:3330-3333. [PMID: 35188150 DOI: 10.1039/d1cc06607b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cryptophane cages can adopt either an anti or syn configuration that present different recognition properties. While the synthesis of anti-cryptophanes is well reported, the synthesis of syn-cryptophanes remains a challenge. Herein, we demonstrate that the use of HFIP as a co-solvent during the second ring closure reaction significantly affects the regioselectivity, providing easier access to the syn-cryptophane stereomers.
Collapse
Affiliation(s)
| | - Yoann Cirillo
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2, Marseille, France.
| | - Thierry Brotin
- Laboratoire de Chimie, École Normale Supérieure de Lyon, CNRS, 46 Allée d'Italie, F-69364 Lyon, France
| | - Jean-Pierre Dutasta
- Laboratoire de Chimie, École Normale Supérieure de Lyon, CNRS, 46 Allée d'Italie, F-69364 Lyon, France
| | - Pierre-Loic Saaidi
- UMR 8030 Génomique métabolique/CEA/Institut de Biologie François Jacob/Genoscope/Université d'Evry Val d'Essonne/Université Paris-Saclay, France
| | - Bastien Chatelet
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2, Marseille, France.
| | | |
Collapse
|
32
|
Vayer M, Zhang S, Moran J, Lebœuf D. Rapid and Mild Metal-Free Reduction of Epoxides to Primary Alcohols Mediated by HFIP. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00216] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Marie Vayer
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, 67000, France
| | - Shaofei Zhang
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, 67000, France
| | - Joseph Moran
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, 67000, France
| | - David Lebœuf
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, 67000, France
| |
Collapse
|
33
|
Jordan A, Hall CGJ, Thorp LR, Sneddon HF. Replacement of Less-Preferred Dipolar Aprotic and Ethereal Solvents in Synthetic Organic Chemistry with More Sustainable Alternatives. Chem Rev 2022; 122:6749-6794. [PMID: 35201751 PMCID: PMC9098182 DOI: 10.1021/acs.chemrev.1c00672] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dipolar aprotic and ethereal solvents comprise just over 40% of all organic solvents utilized in synthetic organic, medicinal, and process chemistry. Unfortunately, many of the common "go-to" solvents are considered to be "less-preferable" for a number of environmental, health, and safety (EHS) reasons such as toxicity, mutagenicity, carcinogenicity, or for practical handling reasons such as flammability and volatility. Recent legislative changes have initiated the implementation of restrictions on the use of many of the commonly employed dipolar aprotic solvents such as dimethylformamide (DMF) and N-methyl-2-pyrrolidinone (NMP), and for ethers such as 1,4-dioxane. Thus, with growing legislative, EHS, and societal pressures, the need to identify and implement the use of alternative solvents that are greener, safer, and more sustainable has never been greater. Within this review, the ubiquitous nature of dipolar aprotic and ethereal solvents is discussed with respect to the physicochemical properties that have made them so appealing to synthetic chemists. An overview of the current legislative restrictions being imposed on the use of dipolar aprotic and ethereal solvents is discussed. A variety of alternative, safer, and more sustainable solvents that have garnered attention over the past decade are then examined, and case studies and examples where less-preferable solvents have been successfully replaced with a safer and more sustainable alternative are highlighted. Finally, a general overview and guidance for solvent selection and replacement are included in the Supporting Information of this review.
Collapse
Affiliation(s)
- Andrew Jordan
- School of Chemistry, University of Nottingham, GlaxoSmithKline Carbon Neutral Laboratory, 6 Triumph Road, Nottingham, NG7 2GA, U.K
| | - Callum G J Hall
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, Glasgow, Scotland G1 1XL, U.K.,GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Lee R Thorp
- GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, U.K
| | - Helen F Sneddon
- Green Chemistry Centre of Excellence, University of York, Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| |
Collapse
|
34
|
Liu Q, Zhou Z, Kuang M, Gao H, Yi W, Wang S. Direct Assembly of Phthalides via Calcium(II)-Catalyzed Cascade ortho-C-Alkenylation/Hydroacyloxylation of 3-Aminobenzoic Acids with Alkynes in Hexafluoroisopropanol. Org Lett 2022; 24:1575-1580. [PMID: 35195430 DOI: 10.1021/acs.orglett.1c04274] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By virtue of a calcium(II)/hexafluoroisopropanol cocatalytic system, the efficient and practical coupling of 3-aminobenzoic acids with alkynes has been realized, giving direct and regioselective access to the phthalide framework with good substrate/functional group compatibility. Mechanistic studies identified 3-amino-2-vinylbenzoic acid species as the active intermediate, thereby revealing an ortho-C-alkenylation/hydroacyloxylation cascade for this transformation.
Collapse
Affiliation(s)
- Qingmei Liu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Zhi Zhou
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Minyao Kuang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Hui Gao
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Wei Yi
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Shengdong Wang
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| |
Collapse
|
35
|
Baidya M, Maiti D, Roy L, De Sarkar S. Trifluoroethanol as a Unique Additive for the Chemoselective Electrooxidation of Enamines to Access Unsymmetrically Substituted NH‐Pyrroles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mrinmay Baidya
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 West Bengal India
| | - Debabrata Maiti
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 West Bengal India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai IOC Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre Bhubaneswar 751013 India
| | - Suman De Sarkar
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 West Bengal India
| |
Collapse
|
36
|
Tian FX, Qu J. Studies on the Origin of the Stabilizing Effects of Fluorinated Alcohols and Weakly Coordinated Fluorine-Containing Anions on Cationic Reaction Intermediates. J Org Chem 2022; 87:1814-1829. [PMID: 35020378 DOI: 10.1021/acs.joc.1c02361] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Many synthetic methods that use fluorinated alcohols as solvents have been reported, and the fluorinated alcohols have been found to be crucial to the success of these methods. In addition, there have been reports indicating that adding a weakly coordinated fluorine-containing anion, such as BF4-, PF6-, or SbF6-, to fluorinated alcohols can improve yields. The boosting effect of fluorinated alcohols is attributed mainly to hydrogen bond activation. A few studies have suggested that the very polar fluorinated alcohols can stabilize cationic reaction intermediates. However, how they do so and why weakly coordinated fluorine-containing anions improve yields have not been studied in depth. Here, we used quaternary ammonium cations, a quaternary phosphonium cation, and a triaryl-substituted carbocation as models for short-lived cationic intermediates and studied the possible interactions of these cations with fluorinated alcohols and BF4-, PF6-, or SbF6-. On the basis of the results, we propose that the C-F dipoles of fluorinated alcohols and the E-F dipoles (where E is B, P, or Sb) of weakly coordinated fluorine-containing anions stabilized these cations by intermolecular charge-dipole interactions. We deduced that in the same fashion the C-F and E-F dipoles can thermodynamically stabilize cationic reaction intermediates.
Collapse
Affiliation(s)
- Feng-Xian Tian
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jin Qu
- The State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| |
Collapse
|
37
|
Li J, He D, Wang B, Xiong W, Qi C, Jiang H. Palladium-catalyzed Lewis acid-regulated cascade annulation of alkynes with unactivated alkenes to access diverse α-methylene-γ-lactones. Org Chem Front 2022. [DOI: 10.1039/d2qo01500e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A palladium-catalyzed Lewis acid-regulated cascade annulation of alkynes with unactivated alkenes for the preparation of alkyl substituted α-methylene-γ-lactones with excellent Z/E selectivities was accomplished.
Collapse
Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Dan He
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Bowen Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Wenfang Xiong
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Chaorong Qi
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P.R. China
| |
Collapse
|
38
|
Seth K. Recent progress in rare-earth metal-catalyzed sp 2 and sp 3 C–H functionalization to construct C–C and C–heteroelement bonds. Org Chem Front 2022. [DOI: 10.1039/d1qo01859k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The review presents rare-earth metal-catalyzed C(sp2/sp3)–H functionalization accessing C–C/C–heteroatom bonds and olefin (co)polymerization, highlighting substrate scope, mechanistic realization, and origin of site-, enantio-/diastereo-selectivity.
Collapse
Affiliation(s)
- Kapileswar Seth
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) – Guwahati, Sila Katamur, Changsari, Kamrup 781101, Assam, India
| |
Collapse
|
39
|
Van Emelen L, Henrion M, Lemmens R, De Vos D. C–N coupling reactions with arenes through C–H activation: the state-of-the-art versus the principles of green chemistry. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01827b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we discuss the state-of-the-art in arene C–N coupling through C–H activation and to what extent it complies with the principles of green chemistry, with a focus on heterogeneously catalysed systems.
Collapse
Affiliation(s)
- Lisa Van Emelen
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Mickaël Henrion
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Robin Lemmens
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| | - Dirk De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), Department of Microbial and Molecular Systems, KU Leuven – University of Leuven, Leuven Chem & Tech, Celestijnenlaan 200F Postbox 2454, Heverlee, Belgium
| |
Collapse
|
40
|
Zeidan N, Bicic S, Mayer RJ, Lebœuf D, Moran J. Hydroarylation of Enamides Enabled by HFIP via a Hexafluoroisopropyl Ether as Iminium Reservoir. Chem Sci 2022; 13:8436-8443. [PMID: 35919727 PMCID: PMC9297520 DOI: 10.1039/d2sc02012b] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/25/2022] [Indexed: 11/21/2022] Open
Abstract
Here we describe that HFIP greatly expands the scope with respect to both reaction partners of the Brønsted acid-catalyzed hydroarylation of enamides. The reaction is fast and practical and can...
Collapse
Affiliation(s)
- Nicolas Zeidan
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Sergiu Bicic
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Robert J Mayer
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - David Lebœuf
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| | - Joseph Moran
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg 8 allée Gaspard Monge 67000 Strasbourg France
| |
Collapse
|
41
|
Belen’kii LI, Gazieva GA, Evdokimenkova YB, Soboleva NO. The literature of heterocyclic chemistry, Part XX, 2020. ADVANCES IN HETEROCYCLIC CHEMISTRY 2022. [DOI: 10.1016/bs.aihch.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
|
42
|
Bangade VM, Dadmal TL, Popatkar BB, Mali PR, Meshram HM. One Pot Catalyst‐free Synthesis of Substituted Di‐amino N‐tosyl Benzoyl Thiazoles byRegioselective C−N Bond Cleavage and Its Anticancer Activity. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vikas M. Bangade
- Department of Chemistry The Institute of Science, Mumbai Dr.HomiBhabha State University Mumbai 15, Madame Cama Road Mumbai-32 400 032 India
- Medicinal Chemistry and Pharmacology Division CSIR-Indian Institute of Chemical Technology, Hyderabad Uppal Road, Tarnaka Hyderabad Telangana 500007 India
| | - Tulshiram L. Dadmal
- Department of Chemistry Government Vidarbha Institute of Science and Humanities Amravati Maharashtra 444604 India
| | - Bhushan B. Popatkar
- Department of Chemistry University of Mumbai Vidyanagari, Kalina, Santacruz (E) Mumbai Maharashtra 400 098 India
| | - Prakash R. Mali
- Medicinal Chemistry and Pharmacology Division CSIR-Indian Institute of Chemical Technology, Hyderabad Uppal Road, Tarnaka Hyderabad Telangana 500007 India
| | - Harshadas M. Meshram
- Medicinal Chemistry and Pharmacology Division CSIR-Indian Institute of Chemical Technology, Hyderabad Uppal Road, Tarnaka Hyderabad Telangana 500007 India
| |
Collapse
|
43
|
Jaiswal V, Godara M, Das D, Gandon V, Saha J. Leveraging the Domino Skeletal Expansion of Thia-/Selenazolidinones via Nitrogen-Atom Transfer in Hexafluoroisopropanol: Room Temperature Access to Six-Membered S/Se,N-Heterocycles. J Org Chem 2021; 87:613-627. [PMID: 34904438 DOI: 10.1021/acs.joc.1c02621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein, a highly regioselective domino skeletal-expansion process that transforms 2-aminothiazolidinone into six-membered S,N-heterocycle is developed with the aid of TMS-azide in hexafluoroisopropanol (HFIP) at ambient temperature. Functioning of the C2 tertiary amine as latent reactive group on thiazolidinone moiety was the key to this development, which allowed relay substitution with azide and imparted subsequent ring-expansion under metal/acid free-conditions. The reaction also underscored an intermolecular nitrogen-atom transfer process from TMS-azide leading to final products, where any intermediary azidothiazolidinone was absent. The strategy was extendable to analogous synthesis of Se,N-heterocycles, and furthermore, late-stage drug-modification and follow-up transformations were also performed. Density functional theory calculations and control experiments provided important mechanistic insights and highlighted potential roles of HFIP in the transformation.
Collapse
Affiliation(s)
- Vandana Jaiswal
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, Uttar Pradesh 226014, India
| | - Mangilal Godara
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, Uttar Pradesh 226014, India
| | - Dinabandhu Das
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi-110067, India
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), CNRS UMR 8182, Université Paris-Saclay, Bâtiment 420, 91405 Orsay cedex, France.,Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, route de Saclay, 91128 Palaiseau cedex, France
| | - Jaideep Saha
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, Uttar Pradesh 226014, India
| |
Collapse
|
44
|
Zhang S, Vayer M, Noël F, Vuković VD, Golushko A, Rezajooei N, Rowley CN, Lebœuf D, Moran J. Unlocking the Friedel-Crafts arylation of primary aliphatic alcohols and epoxides driven by hexafluoroisopropanol. Chem 2021. [DOI: 10.1016/j.chempr.2021.10.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
45
|
Baidya M, Maiti D, Roy L, De Sarkar S. Trifluoroethanol as a Unique Additive for the Chemoselective Electrooxidation of Enamines to Access Unsymmetrically Substituted NH-Pyrroles. Angew Chem Int Ed Engl 2021; 61:e202111679. [PMID: 34851544 DOI: 10.1002/anie.202111679] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/15/2021] [Indexed: 01/31/2023]
Abstract
An electrochemical method for the synthesis of unsymmetrically substituted NH-pyrroles is described. The synthetic strategy comprises a challenging heterocoupling between two structurally diverse enamines via sequential chemoselective oxidation, addition, and cyclization processes. A series of aryl- and alkyl-substituted enamines were effectively cross-coupled from an equimolar mixture to synthesize various unsymmetrical pyrrole derivatives up to 84 % yield. The desired cross-coupling was achieved by tuning the oxidation potential of the enamines by utilizing a "magic effect" of the additive trifluoroethanol (TFE). Additionally, extensive computational studies reveal the unique role of TFE in promoting the heterocoupling process by regulating the activation energies of the reaction steps through H-bonding and C-H⋅⋅⋅π interactions. Importantly, the developed electrochemical protocol was found to be equally efficient for the homocoupling of enamines to form symmetric pyrroles up to 92 % yield.
Collapse
Affiliation(s)
- Mrinmay Baidya
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Debabrata Maiti
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai, IOC Odisha Campus Bhubaneswar, IIT Kharagpur Extension Centre, Bhubaneswar, 751013, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
| |
Collapse
|
46
|
HFIP-catalyzed highly diastereoselective formal [4 + 2] cyclization to synthesize difluorinated multisubstituted chromans using difluoroenoxysilanes as C2 synthons. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
47
|
Das M, Gogoi AR, Sunoj RB. Molecular Insights on Solvent Effects in Organic Reactions as Obtained through Computational Chemistry Tools. J Org Chem 2021; 87:1630-1640. [PMID: 34752092 DOI: 10.1021/acs.joc.1c02222] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Molecular understanding of the role of protic solvents in a gamut of organic transformations can be developed using density functional and ab initio computational studies focused on the reaction mechanism. Inclusion of explicit solvent molecules in the vital TSs has been proven to be valuable toward improving the energetic estimates of organocatalytic as well as transition-metal-catalyzed organic reactions. Herein, we provide an overview of the importance of an explicit-implicit solvation model using a number of interesting examples.
Collapse
Affiliation(s)
- Manajit Das
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Achyut Ranjan Gogoi
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Raghavan B Sunoj
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
48
|
Giri CK, Dana S, Baidya M. Ruthenium(II)-catalyzed C-H activation and (4+2) annulation of aromatic hydroxamic acid esters with allylic amides. Chem Commun (Camb) 2021; 57:10536-10539. [PMID: 34553196 DOI: 10.1039/d1cc04422b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A (4+2) annulation under Ru(II)-catalysis is reported using aromatic hydroxamic acid esters as the oxidizing directing group and allylic amides as unactivated olefin coupling partners, delivering a wide variety of aminomethyl isoquinolinones in good to excellent yields. This annulation is distinctive as allylic congeners typically result in allylation and not the annulation. Late-stage derivatization of a bioactive synthetic bile acid has been showcased.
Collapse
Affiliation(s)
- Chandan Kumar Giri
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India.
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India.
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India.
| |
Collapse
|
49
|
Chao M, Wang F, Xu L, Ju Y, Chen Z, Wang B, Gong P, You J, Jin M, Shen D. Cerium Ammonium Nitrate-Mediated Access to Biaryl Lactones: Substrate Scopes and Mechanism Studies. J Org Chem 2021; 86:13371-13380. [PMID: 34533324 DOI: 10.1021/acs.joc.1c01479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein we described an access to biaryl lactones from ortho-aryl benzoic acids via intramolecular O-H/C-H oxidative coupling with the commonly used cerium ammonium nitrate (CAN) as the one-electron oxidant under a thermal condition. The radical interrupting experiment suggested a radical process, while the kinetic isotope effect (KIE) showed that the C-H cleavage likely was not involved in the rate-determining step. Competitive reactions, especially the strikingly different ρ values of Hammett equations, indicated that the reaction rate was more sensitive to the electronic properties on the aryl moiety rather than the carboxylic moiety, which corresponded to the first single electron transfer (SET) step. In addition, the quite negative ρ values (-4.7) of the aryl moiety unveiled the remarkable electrophilic nature of the second intramolecular radical addition process, which was also consistent with product yields and regioselectivity. Moreover, control experiments disclosed that the single electron in the third step was also transferred to CeIV instead of molecular oxygen. Besides, the possible role of co-solvents trifluoroethanol (TFE) and its influences on the CeIV species were discussed. This work elucidated the possible mechanism by proposing the step that had more effects on the total reaction rate and the species that was responsible for the last single electron transfer.
Collapse
Affiliation(s)
- Mianran Chao
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| | - Fang Wang
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| | - Linlin Xu
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| | - Yanping Ju
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| | - Zixuan Chen
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| | - Bin Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P.R. China
| | - Peiwei Gong
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| | - Jinmao You
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China.,Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, P.R. China
| | - Ming Jin
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| | - Duyi Shen
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China
| |
Collapse
|
50
|
Li J, Xi W, Liu S, Ruan C, Zheng X, Yang J, Wang L, Wang Z. HFIP-Catalyzed Difluoroalkylation of Propargylic Alcohols to Access Tetrasubstituted Difluoroalkyl Allenes. Org Lett 2021; 23:7264-7269. [PMID: 34449234 DOI: 10.1021/acs.orglett.1c02659] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A hexafluoroisopropanol (HFIP)-catalyzed difluoroalkylation of propargylic alcohols with difluoroenoxysilanes to access structurally diverse tetrasubstituted difluoroalkyl allenes has been developed. This convenient procedure enables the rapid construction of highly functionalized multisubstituted fluorinated allenes in a mild and straightforward way. Furthermore, the synthetic potential of this methodology has been demonstrated by the facile synthesis of various structurally interesting fluorine-containing molecules such as gem-difluorosubstituted dihydropyran, tetrasubstituted CF2H-allene, and multisubstituted fluorinated cyclopentanone derivatives.
Collapse
Affiliation(s)
- Jinshan Li
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Wenxue Xi
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Saimei Liu
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Chenxi Ruan
- School of Resources and Chemical Engineering, Sanming University, Sanming 365004, P. R. China
| | - Xiaochun Zheng
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Jianguo Yang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| |
Collapse
|