Synthesis 2018; 50(15): 3022-3030
DOI: 10.1055/s-0037-1610134
special topic
© Georg Thieme Verlag Stuttgart · New York

Copper-Catalyzed Photoinduced Radical Domino Cyclization of Ynamides and Cyanamides: A Unified Entry to Rosettacin, Luotonin A, and Deoxyvasicinone

Authors

  • Hajar Baguia

    Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium   eMail: gevano@ulb.ac.be
  • Christopher Deldaele

    Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium   eMail: gevano@ulb.ac.be
  • Eugénie Romero

    Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium   eMail: gevano@ulb.ac.be
  • Bastien Michelet

    Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium   eMail: gevano@ulb.ac.be
  • Gwilherm Evano  *

    Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium   eMail: gevano@ulb.ac.be

This work was supported by the Université libre de Bruxelles (ULB) and the Fédération Wallonie-Bruxelles (ARC Consolidator 2014-2019). H. B. and C. D. acknowledge the Fonds pour la formation à la Recherche dans l’Industrie et dans l’Agriculture (F.R.I.A.) for graduate fellowships.
Weitere Informationen

Publikationsverlauf

Received: 09. März 2018

Accepted after revision: 09. April 2018

Publikationsdatum:
28. Mai 2018 (online)


Graphical Abstract

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Published as part of the Special Topic Modern Radical Methods and their Strategic Applications in Synthesis

Abstract

A general and efficient procedure for the copper-catalyzed photoinduced radical domino cyclization of ynamides and cyanamides providing an efficient access to complex tri-, tetra- and pentacyclic nitrogen heterocycles is reported. Upon visible light irradiation in the presence of catalytic amounts of [(DPEphos)(bcp)Cu]PF6 and an amine, a range of unactivated aryl and alkyl iodides were shown to be smoothly transformed to the corresponding radical species, initiating the radical domino cyclization. This procedure provides a unified entry to rosettacin, luotonin A, and deoxyvasicinone that could be efficiently prepared in a limited number of steps.

Supporting Information