On the gold-catalyzed intramolecular 7-exo-trig hydroamination of allenes

Aniline derivatives with allene side tethers were tested as substrates for a gold-catalyzed 7-exo-trig hydroamination reaction. The nucleophilicity of the aniline derivatives plays an important role for the outcome of the reaction. While electron-deficient protecting groups at the nitrogen led to co...

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Hauptverfasser: Pflästerer, Daniel (VerfasserIn) , Dolbundalchok, Praphasiri (VerfasserIn) , Rafique, Shahid (VerfasserIn) , Rudolph, Matthias (VerfasserIn) , Rominger, Frank (VerfasserIn) , Hashmi, A. Stephen K. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: April 30, 2013
In: Advanced synthesis & catalysis
Year: 2013, Jahrgang: 355, Heft: 7, Pages: 1383-1393
ISSN:1615-4169
DOI:10.1002/adsc.201300154
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/adsc.201300154
Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/adsc.201300154
Volltext
Verfasserangaben:Daniel Pflästerer, Praphasiri Dolbundalchok, Shahid Rafique, Matthias Rudolph, Frank Rominger, and A. Stephen K. Hashmi

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520 |a Aniline derivatives with allene side tethers were tested as substrates for a gold-catalyzed 7-exo-trig hydroamination reaction. The nucleophilicity of the aniline derivatives plays an important role for the outcome of the reaction. While electron-deficient protecting groups at the nitrogen led to competing pathways like hydroarylation or an allene to diene isomerization, clean formation of the desired benzoxazepines was obtained with unprotected aniline derivatives. 
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