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Visible‐Light‐Mediated Synthesis of 1‐Oxa‐4‐aza‐spiro Oxazolines by Spiroannulation of Quinones with Vinyl Azides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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Xie F, Sun Y, Song H, Dong S, Zhao Q, Liu J, Miao Y. Ligand- and Substrate-Controlled Chemodivergent Pd-Catalyzed Annulations of Cyclic β-Keto Esters with 3-Aryl-2 H-azirines. Org Lett 2021; 24:268-273. [PMID: 34889615 DOI: 10.1021/acs.orglett.1c03933] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chemodivergent Pd-catalyzed annulations of cyclic β-keto esters with 3-aryl-2H-azirines have been developed to provide rapid access to eight-membered ring lactams, bicyclic 3,4-dihydro-2H-pyrrole derivatives, and (E)-methyl [2-(2-oxocyclohexylidene)-2-phenylethyl]carbamates with high efficiency. The chemoselectivity can be determined by tuning the mono- or bisphosphine ligands as well as the substrate structure of cyclic β-keto esters.
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Affiliation(s)
- Fang Xie
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Yajun Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Hanghang Song
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Shijie Dong
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Qin Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Jiayi Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Yu Miao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
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Xie F, Sun Y, Song H, Zhao J, Zhang Z, Duan Y, Chen R. Cascade Reaction of 2-Naphthols and Azirines: One-Pot Synthesis of C-3 Naphthol-Substituted Benzo[ e]indoles. J Org Chem 2021; 86:15631-15639. [PMID: 34643381 DOI: 10.1021/acs.joc.1c02164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A copper-catalyzed annulation of 3-aryl-2H-azirines with 2-naphthols has been developed for the rapid assembly of C-3-naphthol-substituted benzo[e]indoles in one pot. This cascade reaction was realized through dearomatic nucleophilic ring opening of azirine, intramolecular cyclization, and oxidative cross-dehydrogenative coupling to furnish the important unreported π-expanded naphthol/benzo[e]indole biaryls.
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Affiliation(s)
- Fang Xie
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Yajun Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Hanghang Song
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Jie Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Zengpeng Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Yue Duan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Rao Chen
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
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Utecht-Jarzyńska G, Nagła K, Mlostoń G, Heimgartner H, Palusiak M, Jasiński M. A straightforward conversion of 1,4-quinones into polycyclic pyrazoles via [3 + 2]-cycloaddition with fluorinated nitrile imines. Beilstein J Org Chem 2021; 17:1509-1517. [PMID: 34285722 PMCID: PMC8261526 DOI: 10.3762/bjoc.17.108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/17/2021] [Indexed: 11/23/2022] Open
Abstract
In-situ-generated N-aryl nitrile imines derived from trifluoroacetonitrile efficiently react with polycyclic 1,4-quinones, yielding fused pyrazole derivatives as the exclusive products. The reactions proceed via the initially formed [3 + 2]-cycloadducts, which undergo spontaneous aerial oxidation to give aromatized heterocyclic products. Only for 2,3,5,6-tetramethyl-1,4-benzoquinone, the expected [3 + 2]-cycloadduct exhibited fair stability and could be isolated in moderate yield (53%). The presented method offers a straightforward access to hitherto little known trifluoromethylated polycyclic pyrazoles. All products were isolated as pale colored solids with medium-intensity absorption maxima in the range of 310-340 nm for naphthoquinone-derived products and low-intensity bands in the visible region (≈400 nm) for the anthraquinone series.
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Affiliation(s)
- Greta Utecht-Jarzyńska
- Department of Organic and Applied Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91403 Łódź, Poland
| | - Karolina Nagła
- Department of Organic and Applied Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91403 Łódź, Poland
| | - Grzegorz Mlostoń
- Department of Organic and Applied Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91403 Łódź, Poland
| | - Heinz Heimgartner
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Marcin Palusiak
- Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163/165, 90236 Łódź, Poland
| | - Marcin Jasiński
- Department of Organic and Applied Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91403 Łódź, Poland
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Mlostoń G, Urbaniak K, Urbaniak P, Marko A, Linden A, Heimgartner H. First thia-Diels-Alder reactions of thiochalcones with 1,4-quinones. Beilstein J Org Chem 2018; 14:1834-1839. [PMID: 30112087 PMCID: PMC6071716 DOI: 10.3762/bjoc.14.156] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 06/22/2018] [Indexed: 01/10/2023] Open
Abstract
Aryl and hetaryl thiochalcones react smoothly with 1,4-quinones in THF solution at 60 °C yielding the corresponding fused 4H-thiopyrans after spontaneous dehydrogenation of the initially formed [4 + 2] cycloadducts. In general, the yields of the isolated products were high. With 5-chloro-10-hydroxy-1,4-anthraquinone, the thia-Diels–Alder reaction occurred with complete regioselectivity. In the case of the reaction of vitamin K3 (menadione) with diphenylthiochalcone, the initial cycloadduct was isolated in 37% yield.
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Affiliation(s)
- Grzegorz Mlostoń
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, PL 91-403 Łódź, Poland
| | - Katarzyna Urbaniak
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, PL 91-403 Łódź, Poland
| | - Paweł Urbaniak
- Department of Inorganic and Analytical Chemistry, University of Łódź, Tamka 12, PL 91-403 Łódź, Poland
| | - Anna Marko
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, PL 91-403 Łódź, Poland
| | - Anthony Linden
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Heinz Heimgartner
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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Annulation of five-membered cyclic enols with 3-aryl-2 H -azirines: Catalytic versus non-catalytic cycloaddition. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.06.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Mlostoń G, Grzelak P, Heimgartner H. Strong influence of the trifluoromethyl group on the chemoselectivity of [3+2]-cycloadditions of thiocarbonyl S -methanides with α,β-unsaturated ketones. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Heimgartner H, Mloston G, Celeda M. Chemo- and Stereoselectivity in 1,3- Dipolar Cycloadditions of Thiocarbonyl Ylides with a 1,4-Methanonaphthalene- 5,8-dione Derivative. HETEROCYCLES 2003. [DOI: 10.3987/com-02-s61] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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de March P, Escoda M, Figueredo M, Font J, Alvarez-Larena A, Piniella JF. Asymmetric Induction in the Cycloaddition of a Masked p-Benzoquinone to Cyclic Nitrones. J Org Chem 1997. [DOI: 10.1021/jo971035t] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pedro de March
- Departament de Química and Unitat de Cristal.lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Maria Escoda
- Departament de Química and Unitat de Cristal.lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Marta Figueredo
- Departament de Química and Unitat de Cristal.lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Josep Font
- Departament de Química and Unitat de Cristal.lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Angel Alvarez-Larena
- Departament de Química and Unitat de Cristal.lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Juan F. Piniella
- Departament de Química and Unitat de Cristal.lografia, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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Shiraishi S, Inoue Y, Imamura K. The Cycloaddition ofN,α-Diarylnitrones and Substitutedp-Benzoquinones. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1991. [DOI: 10.1246/bcsj.64.2388] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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