A complementary approach to conjugated N-acyliminium formation through photoredox-catalyzed intermolecular radical addition to allenamides and allencarbamates

Autor: Olusesan K. Koleoso, Matthew Turner, Felix Plasser, Marc C. Kimber
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 1983-1990 (2020)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.16.165
Popis: An intermolecular radical addition, using photoredox catalysis, to allenamides and allencarbamates is reported. This transformation synthesizes N-acyl-N’-aryl-N,N’-allylaminals, and proceeds by a conjugated N-acyliminium intermediate that previously has principally been generated by electrophilic activation methods. The radical adds to the central carbon of the allene giving a conjugated N-acyliminium that undergoes nucleophilic addition by arylamines and alcohols.
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