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

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


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.

Supporting Information



Publication History

Received: 10 August 2021

Accepted after revision: 30 September 2021

Article published online:
05 November 2021

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