Synthesis 2022; 54(03): 732-740
DOI: 10.1055/s-0040-1719849
paper

Bromoarylation of Methyl 2-Chloroacrylate under Meerwein Conditions for the Synthesis of Substituted 3-Hydroxythiophenes

Authors

  • Yurii V. Ostapiuk

    a   Ivan Franko National University of Lviv, Department of Organic Chemistry, Kyryla i Mefodiya Str. 6, 79005 Lviv, Ukraine
  • Maksym Shehedyn

    a   Ivan Franko National University of Lviv, Department of Organic Chemistry, Kyryla i Mefodiya Str. 6, 79005 Lviv, Ukraine
  • Oksana V. Barabash

    a   Ivan Franko National University of Lviv, Department of Organic Chemistry, Kyryla i Mefodiya Str. 6, 79005 Lviv, Ukraine
  • Bohdan Demydchuk

    b   V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry NAS of Ukraine, Murmanska Str. 1, 02094 Kyiv-94, Ukraine
  • Sviatoslav Batsyts

    c   Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstrasse 6, 38678 Clausthal-Zellerfeld, Germany
  • Colin Herzberger

    c   Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstrasse 6, 38678 Clausthal-Zellerfeld, Germany
  • Andreas Schmidt

    c   Clausthal University of Technology, Institute of Organic Chemistry, Leibnizstrasse 6, 38678 Clausthal-Zellerfeld, Germany


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Abstract

Methyl 3-aryl-2-bromo-2-chloropropanoates can be prepared by Meerwein reaction from methyl 2-chloroacrylate and various arenediazonium salts under copper(II) bromide catalysis. The resulting readily available compounds were used as starting materials in reactions with substituted methanethiols for the construction of substituted 3-hydroxythiophenes which have not yet been accessible by other routes. Structural variety of the obtained 2-substituted 5-aryl-3-hydroxythiophenes has been achieved due to a wide range of available starting materials, including both anilines and thiols.

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Publikationsverlauf

Eingereicht: 10. August 2021

Angenommen nach Revision: 30. September 2021

Artikel online veröffentlicht:
05. November 2021

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