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Piringer M, Hofer M, Vogl LS, Mayer P, Waser M. Enantioselective Syntheses of 3,4-Dihydropyrans Employing Isochalcogenourea-Catalyzed Formal (4+2)-Cycloadditions of Allenoates. Adv Synth Catal 2024; 366:2115-2122. [PMID: 38840716 PMCID: PMC7616061 DOI: 10.1002/adsc.202400038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Indexed: 06/07/2024]
Abstract
We herein successfully demonstrate the use of chiral isochalcogenoureas as Lewis Base catalysts for a variety of (4+2)-cycloaddition reactions of allenoates and different Michael acceptors. In all cases the same structural key-motive, a dihydropyran with a (Z)-configurated exocyclic double bond could be accessed as the major regio- and diastereoisomer in an enantioselective manner. Furthermore, these chiral dihydropyrans were successfully engaged in different follow-up transformations.
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Affiliation(s)
- Magdalena Piringer
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria + 43 732 2468 5411
| | - Mario Hofer
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria + 43 732 2468 5411
| | - Lukas S. Vogl
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria + 43 732 2468 5411
| | - Peter Mayer
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5–13, 81377 München, Germany
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstr. 69, 4040 Linz, Austria + 43 732 2468 5411
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2
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Vogl LS, Mayer P, Robiette R, Waser M. Chiral Isochalcogenourea-Catalysed Enantioselective (4+2) Cycloadditions of Allenoates. Angew Chem Int Ed Engl 2024; 63:e202315345. [PMID: 38010747 PMCID: PMC10952905 DOI: 10.1002/anie.202315345] [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: 10/11/2023] [Revised: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 11/29/2023]
Abstract
Allenoates are versatile building blocks which are primarily activated and controlled using chiral tert. phosphine and tert. amine Lewis bases. We herein report the first example of allenoate activation by using chiral isochalcogenoureas (IChU) for formal (4+2) cycloaddition reactions. Compared to established phosphine and amine catalysis, the use of these easily available Lewis bases enables new stereoselective reaction pathways proceeding with high enantioselectivities, diastereoselectivities, and in good yields. In addition, the factors governing enantioselectivity and the origin of the observed differences compared to other commonly used Lewis bases are explained.
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Affiliation(s)
- Lukas S. Vogl
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstrasse 694040LinzAustria
| | - Peter Mayer
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstraße 5–1381377MünchenGermany
| | - Raphaël Robiette
- Institute of Condensed Matter and NanosciencesUniversité catholique de LouvainPlace Louis Pasteur 1 box L4.01.021348Louvain-la-NeuveBelgium
| | - Mario Waser
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstrasse 694040LinzAustria
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3
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Vogl LS, Mayer P, Robiette R, Waser M. Chiral Isochalcogenourea-Catalysed Enantioselective (4+2) Cycloadditions of Allenoates. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 136:e202315345. [PMID: 38549953 PMCID: PMC10976662 DOI: 10.1002/ange.202315345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Indexed: 06/02/2024]
Abstract
Allenoates are versatile building blocks which are primarily activated and controlled using chiral tert. phosphine and tert. amine Lewis bases. We herein report the first example of allenoate activation by using chiral isochalcogenoureas (IChU) for formal (4+2) cycloaddition reactions. Compared to established phosphine and amine catalysis, the use of these easily available Lewis bases enables new stereoselective reaction pathways proceeding with high enantioselectivities, diastereoselectivities, and in good yields. In addition, the factors governing enantioselectivity and the origin of the observed differences compared to other commonly used Lewis bases are explained.
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Affiliation(s)
- Lukas S. Vogl
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstrasse 694040LinzAustria
| | - Peter Mayer
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstraße 5–1381377MünchenGermany
| | - Raphaël Robiette
- Institute of Condensed Matter and NanosciencesUniversité catholique de LouvainPlace Louis Pasteur 1 box L4.01.021348Louvain-la-NeuveBelgium
| | - Mario Waser
- Institute of Organic ChemistryJohannes Kepler University LinzAltenbergerstrasse 694040LinzAustria
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4
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Mo NN, Miao YH, Xiao X, Hua YZ, Wang MC, Huang L, Mei GJ. Catalytic asymmetric de novo construction of 4-pyrrolin-2-ones via intermolecular formal [3+2] cycloaddition of azoalkenes with azlactones. Chem Commun (Camb) 2023; 59:5902-5905. [PMID: 37097750 DOI: 10.1039/d3cc01194a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
The chiral phosphoric acid-catalyzed asymmetric intermolecular formal [3+2] cycloaddition of azoalkenes with azlactones has been established. This convergent protocol leads to a facile and enantioselective de novo construction of a wide range of fully substituted 4-pyrrolin-2-ones bearing a fully substituted carbon atom in good yields and with excellent enantioselectivities (26 examples, 72-95% yields and 87-99% ee).
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Affiliation(s)
- Nan-Nan Mo
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Yu-Hang Miao
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Xiao Xiao
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Yuan-Zhao Hua
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Min-Can Wang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Lihua Huang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
| | - Guang-Jian Mei
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
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Meng Y, Chen L, Li EQ. Recent Advances in Lewis Base-Catalysed Chemo-, Diastereo- and Enantiodivergent Reactions of Electron-deficient Olefins and Alkynes. CHEM REC 2021; 22:e202100276. [PMID: 34962071 DOI: 10.1002/tcr.202100276] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/07/2021] [Indexed: 01/28/2023]
Abstract
Lewis base catalysis provides powerful synthetic strategies for the selective construction of carbon-carbon and carbon-heteroatom bonds. Thus continuous efforts have been deployed to develop effective methodologies involving Lewis base catalysis. The nucleophilicity and steric hindrance of Lewis base catalyst often plays a major role in catalytic reactivity and selectivity in the reaction. In the past decades, tremendous progress has been made in the divergent construction of valuable motifs under Lewis base catalysis. In this review, we provide a comprehensive and updated summary of Lewis base-catalysed chemo-, diastereo- and enantiodivergent reaction, as well as the related mechanism will be highlighted in detail.
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Affiliation(s)
- Yinggao Meng
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Lihui Chen
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Er-Qing Li
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, 450001, P. R. China
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6
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Anwar S, Lin LT, Srinivasadesikan V, Gudise VB, Chen K. [3+2] regioselective annulation reaction of 2-arylidene-1,3-indandiones towards synthesis of spirocyclopentenes: understanding the mechanism of γ-attack vs. α-attack using DFT studies. RSC Adv 2021; 11:38648-38653. [PMID: 35493224 PMCID: PMC9044273 DOI: 10.1039/d1ra07165c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 11/19/2021] [Indexed: 12/18/2022] Open
Abstract
A regioselective [3+2] cyclisation reaction between 2-arylidene-1,3-indanedione and ethyl 2,3-butadienoate catalysed by triphenylphosphine has been demonstrated to synthesize functionalised spirocyclic cyclopentenes. The reaction tolerated various electron-rich and electron-deficient aryl substituted 2-arylidene-1,3-indanediones with high to excellent chemical yields (up to 99%) and moderate to good regioselectivity (up to 5 : 1). DFT studies have also been carried out to understand the regioselective nature of this reaction. The results of Frontier molecular orbital calculations and the activation energy (E a) favour the formation of compound 3avia γ-attack compared to that of 4avia α-attack.
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Affiliation(s)
- Shaik Anwar
- Division of Chemistry, Department of Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University) Vadlamudi-522 213 Guntur Andhra Pradesh India http://www.vignan.ac.in/bshanwar.php +91-8632344700
- Department of Chemistry, National Taiwan Normal University 88 Sec. 4, TingChow Road Taipei Taiwan 116 ROC +86-2-29324249 +86-2-7734-6124
| | - Li-Tzu Lin
- Department of Chemistry, National Taiwan Normal University 88 Sec. 4, TingChow Road Taipei Taiwan 116 ROC +86-2-29324249 +86-2-7734-6124
| | - V Srinivasadesikan
- Division of Chemistry, Department of Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University) Vadlamudi-522 213 Guntur Andhra Pradesh India http://www.vignan.ac.in/bshanwar.php +91-8632344700
| | - Veera Babu Gudise
- Division of Chemistry, Department of Sciences and Humanities, Vignan's Foundation for Science Technology and Research-VFSTR (Deemed to be University) Vadlamudi-522 213 Guntur Andhra Pradesh India http://www.vignan.ac.in/bshanwar.php +91-8632344700
| | - Kwunmin Chen
- Department of Chemistry, National Taiwan Normal University 88 Sec. 4, TingChow Road Taipei Taiwan 116 ROC +86-2-29324249 +86-2-7734-6124
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7
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Wu L, Yu B, Li E. Recent Advances in Organocatalyst‐Mediated Benzannulation Reactions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000608] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lulu Wu
- School of Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Bing Yu
- College of Chemistry Green Catalysis Center Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Er‐Qing Li
- College of Chemistry Green Catalysis Center Zhengzhou University Zhengzhou 450001 People's Republic of China
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Wu L, Chen K, Huang Y, Li E. Phosphine‐Catalyzed δ‐Addition Reaction of γ‐Substituted Allenoates with Isatin Derivatives. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Lulu Wu
- School of ScienceHenan Agricultural University Zhengzhou 450002 China
| | - Kaihong Chen
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of chemistryNankai University Tianjin 300071 China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of chemistryNankai University Tianjin 300071 China
| | - Er‐Qing Li
- College of ChemistryGreen Catalysis CenterZhengzhou University Zhengzhou 450001 China
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9
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Han R, Ding Y, Jin X, Li EQ. Silver/palladium relay catalyzed 1,3-dipole annulation/allylation reactions to access fully substituted allyl imidazolidines. Org Biomol Chem 2020; 18:646-649. [PMID: 31919488 DOI: 10.1039/c9ob02633a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A silver/palladium relay catalyzed 1,3-dipole annulation/allylation reaction of iminoesters and Baylis-Hillman acetates for the construction of fully substituted allyl imidazolidines is reported. The reaction of both iminoesters and Baylis-Hillman acetates affords the fully substituted allyl imidazolidines in high yields and regioselectivities. The three component reaction is triggered by silver-catalyzed 1,3-dipole annulation, followed by the sequential palladium catalyzed allylation. Mechanistic studies reveal that the dual catalytic system plays a key role in the reaction. The developed methodology provides straightforward access to allyl imidazolidines under simple reaction conditions.
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Affiliation(s)
- Ruiping Han
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Yue Ding
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Xueke Jin
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Er-Qing Li
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China.
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Li EQ, Huang Y. Recent advances in phosphine catalysis involving γ-substituted allenoates. Chem Commun (Camb) 2020; 56:680-694. [DOI: 10.1039/c9cc08241g] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This feature article will describe the selected examples of organophosphine catalysis of γ-substituent allenoates with a wide range of electrophiles to give diverse annulations.
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Affiliation(s)
- Er-Qing Li
- Green Catalysis Center
- College of Chemistry
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
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11
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Wang Y, Jia S, Li EQ, Duan Z. Phosphine/Palladium Cooperative Catalysis: (4 + 3) Annulations of Morita–Baylis–Hillman Carbonates and Vinyl Benzoxazinanones. J Org Chem 2019; 84:15323-15330. [DOI: 10.1021/acs.joc.9b02349] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yue Wang
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Siming Jia
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Er-Qing Li
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Zheng Duan
- College of Chemistry, International Phosphorus Laboratory, International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
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12
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Gan Z, Gong Y, Chu Y, Li EQ, Huang Y, Duan Z. Phosphine-catalyzed regiodivergent annulations of γ-substituted allenoates with conjugated dienes. Chem Commun (Camb) 2019; 55:10120-10123. [DOI: 10.1039/c9cc05207k] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A phosphine catalyzed regiodivergent annulation of γ-substituted allenoates with conjugated dienes is reported. The high regioselectivity can be achieved by tuning the nucleophilicity of the phosphine catalyst.
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Affiliation(s)
- Zhenjie Gan
- College of Chemistry and Molecular Engineering
- International Phosphorus Laboratory
- International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province
- Zhengzhou University
- Zhengzhou 450001
| | - Yanchuan Gong
- College of Chemistry and Molecular Engineering
- International Phosphorus Laboratory
- International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province
- Zhengzhou University
- Zhengzhou 450001
| | - Yunpeng Chu
- College of Chemistry and Molecular Engineering
- International Phosphorus Laboratory
- International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province
- Zhengzhou University
- Zhengzhou 450001
| | - Er-Qing Li
- College of Chemistry and Molecular Engineering
- International Phosphorus Laboratory
- International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province
- Zhengzhou University
- Zhengzhou 450001
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Zheng Duan
- College of Chemistry and Molecular Engineering
- International Phosphorus Laboratory
- International Joint Research Laboratory for Functional Organophosphorus Materials of Henan Province
- Zhengzhou University
- Zhengzhou 450001
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