1
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Powderly M, Roseau M, Frison G, Hammami R, Chausset-Boissarie L, Harrowven D, Legros J, Chataigner I. Controlling Diastereoselectivity in Dearomatizing Diels-Alder Reactions of Nitroarenes with 2-Trimethylsilyloxycyclohexadiene. Chemistry 2024; 30:e202303697. [PMID: 38619531 DOI: 10.1002/chem.202303697] [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: 11/07/2023] [Revised: 03/29/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
Dearomative Diels-Alder cycloadditions between nitroarenes and 2-trimethylsilyloxycyclohexadiene are carried out under high pressure at room temperature in the absence of any chemical promoter. Reactions are performed with different arenes, including the highly aromatic naphthalenes and quinolines. They lead to 3D-scaffolds with exquisite exo-diastereoselectivity. The exo approach is characterized by lower distortion of the substrates in a late TS and by more favorable orbital interactions presumably between the nitro group and the dienic part, explaining the stereoselectivity.
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Affiliation(s)
- Marian Powderly
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3 M FR 3038, 76000, Rouen, France
- Chemistry, University of Southampton, Highfield, Southampton, UK
| | - Mélanie Roseau
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3 M FR 3038, 76000, Rouen, France
| | - Gilles Frison
- Sorbonne Université, CNRS, Laboratoire de Chimie Théorique, LCT, F-75005, Paris, France
| | - Rayhane Hammami
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3 M FR 3038, 76000, Rouen, France
| | - Laetitia Chausset-Boissarie
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3 M FR 3038, 76000, Rouen, France
| | - David Harrowven
- Chemistry, University of Southampton, Highfield, Southampton, UK
| | - Julien Legros
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3 M FR 3038, 76000, Rouen, France
| | - Isabelle Chataigner
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3 M FR 3038, 76000, Rouen, France
- Sorbonne Université, CNRS, Laboratoire de Chimie Théorique, LCT, F-75005, Paris, France
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2
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Babu SA, A A, Mohan M, Paul N, Mathew J, John J. Tandem Reactions of Electrophilic Indoles toward Indolizines and Their Subsequent Transformations through Pd(II)-Mediated C-H Functionalization to Access Polyring-Fused N-Heterocycles. ACS OMEGA 2024; 9:16196-16206. [PMID: 38617644 PMCID: PMC11007710 DOI: 10.1021/acsomega.3c10194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 04/16/2024]
Abstract
A simple and efficient synthetic approach for generating a library of structurally novel indolizines has been developed via sequential 1,3-dipolar cycloaddition-ring opening processes. Using this methodology, a series of indolizines bearing different substituents were made in moderate to good yields. The presence of two functionalizable C-H bonds in these indolizine motifs makes them attractive for accessing fused indolizine scaffolds. In this line, we have introduced palladium-mediated site-selective C-H functionalizations, where the N-center and the two C-H centers of the indolizine moiety can be readily functionalized to generate fused N-heterocycles. Utilizing a Pd-mediated dual C-H activation of 5-benzoyl-substituted indolizine afforded 6H-indeno-indolizine, and a tetracene, viz., indolizino[2,1-b]indoles, was produced in the same substrate by the Pd-catalyzed selective C-H amination in the presence of oxygen.
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Affiliation(s)
- Sheba Ann Babu
- Chemical
Sciences and Technology Division, CSIR-National
Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Aparna A
- Chemical
Sciences and Technology Division, CSIR-National
Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
| | - Malavika Mohan
- Chemical
Sciences and Technology Division, CSIR-National
Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
| | - Namitha Paul
- Chemical
Sciences and Technology Division, CSIR-National
Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
| | - Jomon Mathew
- Research
and Post-Graduate Department of Chemistry, St. Joseph’s College, Devagiri, Calicut 673008, India
| | - Jubi John
- Chemical
Sciences and Technology Division, CSIR-National
Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Ben Salah S, Othman M, Sanselme M, Daïch A, Chataigner I, Lawson AM. Dichotomic Dearomatizations of Benzene vs Pyridine Rings of Sulfonyloxypyridine via (3 + 2) Cycloaddition. J Org Chem 2023; 88:12265-12275. [PMID: 37560980 DOI: 10.1021/acs.joc.3c00901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Electron-poor arenesulfonyloxypyridines are selectively dearomatized whether on the pyridine or on the phenyl group through 1,3-dipolar cycloaddition (1,3-DC) involving non-stabilized azomethine ylides (AMY). Electronic effects of substituents on the aromatic rings allow to induce the regioselectivity of the transformation. Novel pyrrolidinic polycyclic heterocycles are thereby produced under mild acidic conditions at room temperature.
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Affiliation(s)
- Sami Ben Salah
- Normandie Univ; UNILEHAVRE, URCOM, EA 3221, 25 rue Philipe Lebon, F-76600 Le Havre Cedex, France
| | - Mohamed Othman
- Normandie Univ; UNILEHAVRE, URCOM, EA 3221, 25 rue Philipe Lebon, F-76600 Le Havre Cedex, France
| | - Morgane Sanselme
- UNIROUEN, Laboratoire SMS UR3233, Normandie Univ; Place Emile Blondel, France; F-76821 Mont Saint Aignan, France
| | - Adam Daïch
- Normandie Univ; UNILEHAVRE, URCOM, EA 3221, 25 rue Philipe Lebon, F-76600 Le Havre Cedex, France
| | - Isabelle Chataigner
- UNIROUEN, CNRS, INSA Rouen, COBRA laboratory, Normandie Univ; F-76000 Rouen, France
- CNRS, Sorbonne Université, LCT UMR 7616, F-75005 Paris, France
| | - Ata Martin Lawson
- Normandie Univ; UNILEHAVRE, URCOM, EA 3221, 25 rue Philipe Lebon, F-76600 Le Havre Cedex, France
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Faye Y, Rkein B, Bigot A, Lequeux T, Legros J, Chataigner I. Photocatalyzed (3+2) Cycloaddition for the Dearomatization of Electron-Poor Arenes under Flow Conditions. Chemistry 2023; 29:e202301567. [PMID: 37306243 DOI: 10.1002/chem.202301567] [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: 05/17/2023] [Revised: 06/12/2023] [Accepted: 06/12/2023] [Indexed: 06/13/2023]
Abstract
The photocatalyzed dearomative reaction between various electron-deficient aromatic compounds and a non-stabilized azomethine ylide is successfully performed in a flow system. Whereas the use of supported eosin as organic photocatalyst exhibits limited efficiency, turning to the soluble Rose Bengal allows to transform a broad range of substrates from hetarenes (indole, benzofuran, quinoline, pyridine) to naphthalenes and benzenes. This photocatalyzed (3+2) dearomative cycloaddition under green light irradiation provides a simple and efficient access to tridimensional pyrrolidino scaffolds with a tetrasubstituted carbon center at ring junction and can be performed in the friendly ethyl acetate. Computational studies support the mechanism involving azomethine ylide as reactive species toward the electron-poor arene.
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Affiliation(s)
- Youssou Faye
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA, 76000, Rouen, France
| | - Batoul Rkein
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA, 76000, Rouen, France
| | - Antoine Bigot
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA, 76000, Rouen, France
| | - Thierry Lequeux
- Normandie Univ., ENSICAEN, Unicaen, CNRS, LCMT, 14000, Caen, France
| | - Julien Legros
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA, 76000, Rouen, France
| | - Isabelle Chataigner
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA, 76000, Rouen, France
- Sorbonne Université, CNRS, Laboratoire de Chimie Théorique, LCT UMR7616, 75005, Paris, France
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Babu SA, P V V, Poulose S, Varughese S, John J. Copper-Catalyzed Annulation of Electrophilic Benzannulated Heterocycles with 2-Aminopyridine and 2-Aminoquinoline: Direct Access toward Polyring-Fused Imidazo[1,2- a]pyridines. J Org Chem 2023; 88:10027-10039. [PMID: 37433107 DOI: 10.1021/acs.joc.3c00849] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
We have developed a direct method for the synthesis of polyring-fused imidazo[1,2-a]pyridines via a copper-catalyzed annulation of electrophilic benzannulated heterocycles with 2-aminopyridine and 2-aminoquinoline. From 3-nitroindoles and 2-aminopyridine, we could synthesize tetracenes, viz., indole-fused imidazo[1,2-a]pyridines, and by starting from 2-aminoquinoline, we could generate pentacenes, viz., indolo-imidazo[1,2-a]quinolines. In addition, we could also extend the methodology toward the synthesis of benzothieno-imidazo[1,2-a]pyridines starting from 3-nitrobenzothiophene. Furthermore, the basic photophysical properties of these synthesized heteroacenes were evaluated.
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Affiliation(s)
- Sheba Ann Babu
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Varsha P V
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
| | - Susanna Poulose
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sunil Varughese
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jubi John
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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6
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Dutta L, Chattopadhyay A, Yadav N, Ramasastry SSV. Phosphine-catalysed denitrative rearomatising (3 + 2) annulation of α,β-ynones and 3-nitroindoles. Org Biomol Chem 2023; 21:738-742. [PMID: 36601997 DOI: 10.1039/d2ob02180c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We describe a metal-free strategy to access various α-arylidene cyclopenta[b]indoles via phosphine-catalysed (3 + 2) annulation of α,β-ynones and 3-nitroindoles. For the first time, the rearomatisation of the indole nucleus was observed in such an annulative transformation. The method was extended to the synthesis of an antimalarial natural product, bruceolline E.
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Affiliation(s)
- Lona Dutta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S. A. S. Nagar, Punjab 140306, India.
| | - Anwita Chattopadhyay
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S. A. S. Nagar, Punjab 140306, India.
| | - Nisha Yadav
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S. A. S. Nagar, Punjab 140306, India.
| | - S S V Ramasastry
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, S. A. S. Nagar, Punjab 140306, India.
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Loco D, Chataigner I, Piquemal J, Spezia R. Efficient and Accurate Description of Diels-Alder Reactions Using Density Functional Theory. Chemphyschem 2022; 23:e202200349. [PMID: 35696652 PMCID: PMC9796631 DOI: 10.1002/cphc.202200349] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/11/2022] [Indexed: 01/01/2023]
Abstract
Modeling chemical reactions using Quantum Chemistry is a widely used predictive strategy capable to complement experiments in order to understand the intrinsic mechanisms guiding the chemicals towards the most favorable reaction products. However, at this purpose, it is mandatory to use reliable and computationally tractable theoretical methods. In this work, we focus on six Diels-Alder reactions of increasing complexity and perform an extensive benchmark of middle- to low-cost computational approaches to predict the characteristic reactions energy barriers. We found that Density Functional Theory, using the ωB97XD, LC-ωPBE, CAM-B3LYP, M11 and MN12SX functionals, with empirical dispersion corrections coupled to an affordable 6-31G basis set, provides quality results for this class of reactions, at a small computational effort. Such efficient and reliable simulation protocol opens perspectives for hybrid QM/MM molecular dynamics simulations of Diels-Alder reactions including explicit solvation.
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Affiliation(s)
- Daniele Loco
- Sorbonne Université, Laboratoire de Chimie ThéoriqueUMR 7616 CNRS4 Place Jussieu75005ParisFrance
- Qubit PharmaceuticalsIncubateur Paris Biotech Santé24 rue du Faubourg Saint Jacques75014ParisFrance
| | - Isabelle Chataigner
- Sorbonne Université, Laboratoire de Chimie ThéoriqueUMR 7616 CNRS4 Place Jussieu75005ParisFrance
- Normandie Univ.UNIROUENCNRS, INSA Rouen, COBRA76000RouenFrance
| | - Jean‐Philip Piquemal
- Sorbonne Université, Laboratoire de Chimie ThéoriqueUMR 7616 CNRS4 Place Jussieu75005ParisFrance
| | - Riccardo Spezia
- Sorbonne Université, Laboratoire de Chimie ThéoriqueUMR 7616 CNRS4 Place Jussieu75005ParisFrance
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8
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Flow dearomatization of electron-poor 3-fluoromethylthioindoles by 1,3-dipolar cycloaddition. J Flow Chem 2021. [DOI: 10.1007/s41981-021-00203-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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