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.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Chiral Isochalcogenourea‐Catalysed Enantioselective (4+2) Cycloadditions of Allenoates ; day:11 ; month:12 ; year:2023 ; extent:10
Angewandte Chemie ; (11.12.2023) (gesamt 10)

Creator
Vogl, Lukas S.
Mayer, Peter
Robiette, Raphaël
Waser, Mario

DOI
10.1002/ange.202315345
URN
urn:nbn:de:101:1-2023121214095697427268
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:32 AM CEST

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Associated

  • Vogl, Lukas S.
  • Mayer, Peter
  • Robiette, Raphaël
  • Waser, Mario

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