Chiral Isochalcogenourea‐Catalysed Enantioselective (4+2) Cycloadditions of Allenoates
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.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Chiral Isochalcogenourea‐Catalysed Enantioselective (4+2) Cycloadditions of Allenoates ; day:11 ; month:12 ; year:2023 ; extent:10
Angewandte Chemie ; (11.12.2023) (gesamt 10)
- Urheber
- DOI
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10.1002/ange.202315345
- URN
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urn:nbn:de:101:1-2023121214095697427268
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:32 MESZ
Datenpartner
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Beteiligte
- Vogl, Lukas S.
- Mayer, Peter
- Robiette, Raphaël
- Waser, Mario
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