Synthesis 2021; 53(23): 4419-4427
DOI: 10.1055/a-1543-3924
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Visible-Light Photocatalytic Ugi/Aza-Wittig Cascade towards 2-Aminomethyl-1,3,4-oxadiazole Derivatives

Authors

  • Camilla Russo

    a   Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
  • Rolando Cannalire

    a   Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
  • Paolo Luciano

    a   Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy
  • Francesca Brunelli

    b   Department of Drug Science, University of Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy
  • Gian Cesare Tron

    b   Department of Drug Science, University of Piemonte Orientale, Largo Donegani 2, 28100, Novara, Italy
  • Mariateresa Giustiniano

    a   Department of Pharmacy, University of Naples Federico II, via D. Montesano 49, 80131, Napoli, Italy

Financial support from Università degli Studi di Napoli Federico II and Università del Piemonte Orientale, Novara, Italy is acknowledged. M. G. acknowledges PROGEMA support (ARS01_X00432, PON R&I 2014-2020). R. C. acknowledges support from Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR; Italian Ministry of Education, University and Research), PON R&I 2014-2020-AIM (Attraction and International Mobility), project AIM1873131 - Num. Attività 2 - Linea 2.1.


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Abstract

A new visible-light photocatalytic multicomponent reaction (MCR) involving N-alkyl-N-methylanilines, N-isocyanoiminotriphenylphosphorane, and carboxylic acids leading to 1,3,4-oxadiazole derivatives is reported. The developed mild reaction conditions enable a broad substrate scope and good functional group tolerance, as further highlighted in the late-stage functionalization of amino acids and drugs. Additionally, a two-step one-pot protocol for the synthesis of non-symmetrical diacylhydrazines is also reported.

Supporting Information



Publikationsverlauf

Eingereicht: 14. Mai 2021

Angenommen nach Revision: 02. Juli 2021

Accepted Manuscript online:
02. Juli 2021

Artikel online veröffentlicht:
13. August 2021

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