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Palombi L, Monti M, Scarel E, Morlacci V, Stener M, Aschi M. Unrevealing the Nitrogen Elusive Chirality of 3-Sulfanyl and 3-Sulfinyl N-Tosyl Isoindolinones by ECD Spectra: An Experimental and Theoretical Investigation. Chemistry 2024; 30:e202400232. [PMID: 38494944 DOI: 10.1002/chem.202400232] [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: 01/18/2024] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
The nitrogen-hybridization/pyramidalization of two solvated N-tosylisoindolinone derivatives having chiral residues in adjacent (I) or adjacent and distal (II) position has been investigated by a theoretical-computational procedure based on Molecular Dynamics simulations and Quantum-Chemical calculations. After validation of our methodology in providing a reliable repertory of conformations by modeling the electronic circular dichroism (EDC) spectra, the electronic features associated with N-pyramidalization were further characterized through Natural Bond Order (NBO) analysis. Comparing against the N-geometry observed in crystal structures as a reference, our findings reveal that the presence of neighbouring chiral centers induces a more pronounced N-pyramidalization in solution than in the solid state, both in I and II. Furthermore, NBO analysis confirms that the N-lactam mostly retains the sp2 character but exhibits slight configurational distortion (ξI=13°; ξII=21°), which significantly influences the chiroptical activities observed in ECD spectra of I and II. This substantiates the N-lactams as configurationally stable chiral centers.
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Affiliation(s)
- Laura Palombi
- Dipartimento di Scienze Fisiche e Chimiche Università di L'Aquila, Via Vetoio, 10, Coppito, 67100, L'Aquila, Italy
| | - Marta Monti
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli studi di Trieste, Via Giorgieri 1, 34127, Trieste, Italy
- The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34151, Trieste, Italy
| | - Erica Scarel
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli studi di Trieste, Via Giorgieri 1, 34127, Trieste, Italy
| | - Valerio Morlacci
- Dipartimento di Scienze Fisiche e Chimiche Università di L'Aquila, Via Vetoio, 10, Coppito, 67100, L'Aquila, Italy
| | - Mauro Stener
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli studi di Trieste, Via Giorgieri 1, 34127, Trieste, Italy
| | - Massimiliano Aschi
- Dipartimento di Scienze Fisiche e Chimiche Università di L'Aquila, Via Vetoio, 10, Coppito, 67100, L'Aquila, Italy
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2
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Serusi L, Palombi L, Pierri G, Mola AD, Massa A. Asymmetric Cascade Aza-Henry/Lactamization Reaction in the Highly Enantioselective Organocatalytic Synthesis of 3-(Nitromethyl)isoindolin-1-ones from α-Amido Sulfones. J Org Chem 2022; 87:8420-8428. [PMID: 35699594 PMCID: PMC9490826 DOI: 10.1021/acs.joc.2c00518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
The asymmetric synthesis
of novel 3-substituted isoindolinones
is herein reported. A new cascade reaction was developed that consisted
of the asymmetric nitro-Mannich reaction of suitable α-amido
sulfones designed from 2-formyl benzoates, followed by the in situ cyclization of the adducts. Very high enantioselectivities,
up to 98% ee, and very good yields were obtained in the presence of
the readily available neutral bifunctional organocatalyst derived
from trans-1,2-diaminocyclohexane, which is known
as Takemoto’s catalyst. The investigation of the reactivity
of the obtained products allowed either the selective Boc-deprotection
or reduction of the nitro group, leading to further functionalized
3-substituted isoindolinones without affecting the enantiomeric purity.
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Affiliation(s)
- Lorenzo Serusi
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
| | - Laura Palombi
- Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, Via Vetoio, Coppito, L'Aquila 10-67100, Italy
| | - Giovanni Pierri
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
| | - Antonia Di Mola
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
| | - Antonio Massa
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 84084, Italy
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3
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Samanta S, Ali SA, Bera A, Giri S, Samanta K. Transition metal-free advanced synthetic approaches for isoindolinones and their fused analogues. NEW J CHEM 2022. [DOI: 10.1039/d2nj00475e] [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
The transition metal-free synthetic protocols of isoindolinone and its fused analogues are highlighted in this review since 2007 to 2021.
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Affiliation(s)
| | - Sk Asraf Ali
- Department of Chemistry, Bidhannagar College, Kolkata 700064, India
| | - Anirban Bera
- Department of Chemistry, Bidhannagar College, Kolkata 700064, India
| | - Soumen Giri
- Department of Chemistry, C.V. Raman Global University, Bhubaneswar 752054, India
| | - Khokan Samanta
- Department of Chemistry, Haldia Government College, Haldia, India
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4
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Sharma P, Gupta R, Bansal RK. Recent advances in organocatalytic asymmetric aza-Michael reactions of amines and amides. Beilstein J Org Chem 2021; 17:2585-2610. [PMID: 34760026 PMCID: PMC8551878 DOI: 10.3762/bjoc.17.173] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/27/2021] [Indexed: 11/23/2022] Open
Abstract
Nitrogen-containing scaffolds are ubiquitous in nature and constitute an important class of building blocks in organic synthesis. The asymmetric aza-Michael reaction (aza-MR) alone or in tandem with other organic reaction(s) is an important synthetic tool to form new C-N bond(s) leading to developing new libraries of diverse types of bioactive nitrogen compounds. The synthesis and application of a variety of organocatalysts for accomplishing highly useful organic syntheses without causing environmental pollution in compliance with 'Green Chemistry" has been a landmark development in the recent past. Application of many of these organocatalysts has been extended to asymmetric aza-MR during the last two decades. The present article overviews the literature published during the last 10 years concerning the asymmetric aza-MR of amines and amides catalysed by organocatalysts. Both types of the organocatalysts, i.e., those acting through non-covalent interactions and those working through covalent bond formation have been applied for the asymmetric aza-MR. Thus, the review includes the examples wherein cinchona alkaloids, squaramides, chiral amines, phase-transfer catalysts and chiral bifunctional thioureas have been used, which activate the substrates through hydrogen bond formation. Most of these reactions are accompanied by high yields and enantiomeric excesses. On the other hand, N-heterocyclic carbenes and chiral pyrrolidine derivatives acting through covalent bond formation such as the iminium ions with the substrates have also been included. Wherever possible, a comparison has been made between the efficacies of various organocatalysts in asymmetric aza-MR.
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Affiliation(s)
- Pratibha Sharma
- Department of Chemistry, The IIS (deemed to be University), Jaipur 302 020, India
| | - Raakhi Gupta
- Department of Chemistry, The IIS (deemed to be University), Jaipur 302 020, India
| | - Raj Kumar Bansal
- Department of Chemistry, The IIS (deemed to be University), Jaipur 302 020, India
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5
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Sánchez-Roselló M, Escolano M, Gaviña D, Del Pozo C. Two Decades of Progress in the Asymmetric Intramolecular aza-Michael Reaction. CHEM REC 2021; 22:e202100161. [PMID: 34415097 DOI: 10.1002/tcr.202100161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/22/2021] [Accepted: 08/04/2021] [Indexed: 11/08/2022]
Abstract
The asymmetric intramolecular aza-Michael reaction (IMAMR) is a very convenient strategy for the generation of heterocycles bearing nitrogen-substituted stereocenters. Due to the ubiquitous presence of these skeletons in natural products, the IMAMR has found widespread applications in the total synthesis of alkaloids and biologically relevant compounds. The development of asymmetric versions of the IMAMR are quite recent, most of them reported in this century. The fundamental advances in this field involve the use of organocatalysts. Chiral imidazolidinones, diaryl prolinol derivatives, Cinchone-derived primary amines and quaternary ammonium salts, and BINOL-derived phosphoric acids account for the success of those methodologies. Moreover, the use of N-sulfinyl imines with a dual role, as nitrogen nucleophiles and as chiral auxiliaries, appeared as a versatile mode of performing the asymmetric IMAMR.
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Affiliation(s)
- María Sánchez-Roselló
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
| | - Marcos Escolano
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
| | - Daniel Gaviña
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
| | - Carlos Del Pozo
- Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia), Spain
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Serusi L, Massa A, Tedesco C, Capobianco A, Palombi L. The First Highly Enantioselective Synthesis of 3-Sulfinyl-Substituted Isoindolinones Having Adjacent Carbon and Sulfur Stereocenters. J Org Chem 2021; 86:10630-10639. [PMID: 34255964 DOI: 10.1021/acs.joc.1c01300] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A highly stereoselective access to 3-sulfinyl-substituted isoindolinones has been achieved by a tandem organocatalytic addition/cyclization reaction of 2-carbobenzyloxy-N-tosylbenzylidenimine with thiols and succeeding diastereoselective oxidation with MCPBA. First, enantioenriched isoindolinone N,S-acetals have been obtained through a dynamic kinetic asymmetric transformation induced by a bifunctional chiral thiourea organocatalyst. In turn, the newly created carbon stereocenter enabled a high diastereocontrol in the subsequent sulfoxidation. Based on DFT calculations, a theoretical rationale for the stereoselectivity of the oxidation reaction is also provided.
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Affiliation(s)
- Lorenzo Serusi
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Antonio Massa
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Consiglia Tedesco
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Amedeo Capobianco
- Dipartimento di Chimica e Biologia "A. Zambelli″, Università di Salerno, Via Giovanni Paolo II, Fisciano, Salerno 132-84084, Italy
| | - Laura Palombi
- Dipartimento di Scienze Fisiche e Chimiche, Università dell'Aquila, Via Vetoio, L'Aquila 10-67100, Italy
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7
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Escolano M, Torres Fernández J, Rabasa-Alcañiz F, Sánchez-Roselló M, Pozo CD. Enantioselective Synthesis of Pyrrolizidinone Scaffolds through Multiple-Relay Catalysis. Org Lett 2020; 22:9433-9438. [PMID: 33253590 DOI: 10.1021/acs.orglett.0c03344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A triple-tandem protocol for the synthesis of the pyrrolizidinone skeleton has been devised. It involves a cross metathesis-intramolecular aza-Michael reaction-intramolecular Michael addition tandem sequence, starting from N-pentenyl-4-oxo-2-alkenamides and conjugated ketones. In the presence of two cooperative catalysts, namely the second-generation Hoveyda-Grubbs catalyst and (R)-TRIP-derived BINOL phosphoric acid, this multiple-relay catalytic process takes place in good yields and outstanding levels of diastero- and enantioselectivity with the simultaneous generation of three contiguous stereocenters.
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Affiliation(s)
- Marcos Escolano
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain
| | - Javier Torres Fernández
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain
| | - Fernando Rabasa-Alcañiz
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain
| | - María Sánchez-Roselló
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain
| | - Carlos Del Pozo
- Department of Organic Chemistry, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100 Burjassot-Valencia, Spain
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8
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González Adelantado FV. Phase-transfer catalysis and the ion pair concept. PHYSICAL SCIENCES REVIEWS 2020. [DOI: 10.1515/psr-2018-0094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThis review outlines the recent advances in the field of asymmetric phase-transfer catalysis and the ion-pair concept including alkylation of amino acids and peptides, oxyindoles and other substrates, conjugate additions, fluorinations, photo-induced phase-transfer catalysis, Nitro-Mannich reactions, heterocyclizations and cycloadditions for the preparation of heterocycles, derivatization of isoxazoles, umpolung conjugate addition of imines and other three asymmetric reactions.
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9
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Gao W, Chen M, Ding Q, Peng Y. Catalytic Asymmetric Synthesis of Isoindolinones. Chem Asian J 2019; 14:1306-1322. [DOI: 10.1002/asia.201900080] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/11/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Wei Gao
- Key Laboratory of Functional Small Organic MoleculesMinistry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang Jiangxi 330022 P. R. China
- Jiangxi Academy of Forestry Nanchang Jiangxi 330013 P. R. China
| | - Mu‐wang Chen
- Key Laboratory of Functional Small Organic MoleculesMinistry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang Jiangxi 330022 P. R. China
| | - Qiuping Ding
- Key Laboratory of Functional Small Organic MoleculesMinistry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang Jiangxi 330022 P. R. China
| | - Yiyuan Peng
- Key Laboratory of Functional Small Organic MoleculesMinistry of Education and College of Chemistry & Chemical EngineeringJiangxi Normal University Nanchang Jiangxi 330022 P. R. China
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10
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Ali SA, Bhaumik S, Jana A, Manna SK, Ikbal M, Mandal A, Bera A, Jana A, Samanta S. NaN
3
/NH
4
Cl‐Promoted Aza‐Cyclization: A Convenient Route for Bio‐Active Diverse Isoindolinone Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201802696] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sk Asraf Ali
- Department of ChemistryBidhannagar College Kolkata 700064 India
| | - Sanjay Bhaumik
- Department of ChemistryBidhannagar College Kolkata 700064 India
| | - Akash Jana
- Indian Institute of Science Education and Research Kolkata Nadia 741246 India
| | | | | | - Arabinda Mandal
- Department of ChemistryBidhannagar College Kolkata 700064 India
| | - Anirban Bera
- Department of ChemistryBidhannagar College Kolkata 700064 India
| | - Avijit Jana
- Centre for Chemical BiologyCSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
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