Synthesis 2018; 50(05): 1159-1165
DOI: 10.1055/s-0036-1589136
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of New Annulated Pyrazinothienotriazolopyrimidinones and Triazolylthienopyrazines

Authors

  • Joana F. Campos

    a   Departmento/Centro de Química, Escola de Ciências, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
    b   Institut de Chimie Organique et Analytique (ICOA), Université d’Orléans UMR-CNRS 7311, BP 6759, rue de Chartres 45067 Orléans cedex 2, France   eMail: sabine.berteina-raboin@univ-orleans.fr
  • Maria-João R. P. Queiroz

    a   Departmento/Centro de Química, Escola de Ciências, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
  • Sabine Berteina-Raboin  *

    b   Institut de Chimie Organique et Analytique (ICOA), Université d’Orléans UMR-CNRS 7311, BP 6759, rue de Chartres 45067 Orléans cedex 2, France   eMail: sabine.berteina-raboin@univ-orleans.fr
Weitere Informationen

Publikationsverlauf

Received: 25. September 2017

Accepted after revision: 21. Oktober 2017

Publikationsdatum:
23. November 2017 (online)


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Abstract

New pyrazino[2′,3′:4,5]thieno[2,3-e][1,2,3]triazolo[1,5-a]-pyrimidin-5(4H)-ones were synthesized in an efficient, fast, and mild one-pot procedure from methyl 7-azidothieno[2,3-b]pyrazine-6-carboxylate. From the latter, some triazolothieno[2,3-b]pyrazine-6-carboxylates were also obtained with total regioselectivity by [2+3] cycloaddition with alkynes without any metal catalyst.

Supporting Information