Gold-catalyzed one-pot synthesis of 1,3-disubstituted allenes from benzaldehydes and terminal alkynes

A new and facile one-pot synthesis of 1,3-disubstituted allenes, using cheap and readily available terminal alkynes, benzaldehyde derivatives and morpholine, was developed. A small library of 20 allenes demonstrates a broad applicability, with yields up to 86%. Isotopic-labelling and cross-over expe...

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Hauptverfasser: Lustosa, Danilo Machado (VerfasserIn) , Clemens, Simon (VerfasserIn) , Rudolph, Matthias (VerfasserIn) , Hashmi, A. Stephen K. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: September 25, 2019
In: Advanced synthesis & catalysis
Year: 2019, Jahrgang: 361, Heft: 21, Pages: 5050-5056
ISSN:1615-4169
DOI:10.1002/adsc.201900824
Online-Zugang:Verlag, Volltext: https://doi.org/10.1002/adsc.201900824
Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/adsc.201900824
Volltext
Verfasserangaben:Danilo M. Lustosa, Simon Clemens, Matthias Rudolph, and A. Stephen K. Hashmi
Beschreibung
Zusammenfassung:A new and facile one-pot synthesis of 1,3-disubstituted allenes, using cheap and readily available terminal alkynes, benzaldehyde derivatives and morpholine, was developed. A small library of 20 allenes demonstrates a broad applicability, with yields up to 86%. Isotopic-labelling and cross-over experiments strongly indicate that our reaction proceeds via a two-step A3-coupling followed by a 1,5-hydrogen shift process.
Beschreibung:Gesehen am 21.11.2019
Beschreibung:Online Resource
ISSN:1615-4169
DOI:10.1002/adsc.201900824