Synthesis of a benzannulated pyrrolizidine by a copper-catalyzed intramolecular a-arylation reaction.
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2014
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A synthetic route to the pyrrolo[1,2-a]indole ring system (benzannulated pyrrolizidine) involving a
base-induced intramolecular aza-Michael reaction as the key C N bond-forming penultimate step,
followed by a Cu-catalyzed intramolecular a-arylation reaction, to provide the tricyclic framework over
six steps is described.
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ARAÚJO, F. M.; VENTURA, W. M.; TAYLOR, J. G. Synthesis of a benzannulated pyrrolizidine by a copper-catalyzed intramolecular a-arylation reaction. Helvetica Chimica Acta, v. 97, p. 569-573, 2014. Disponível em: <http://onlinelibrary.wiley.com/doi/10.1002/hlca.201300313/abstract>. Acesso em: 20 abr. 2017.