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DOI: 10.1055/s-0040-1719849
Bromoarylation of Methyl 2-Chloroacrylate under Meerwein Conditions for the Synthesis of Substituted 3-Hydroxythiophenes


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
- Supporting information for this article is available online at https://doi.org/10.1055/s-0040-1719849.
- Supporting Information
Publication History
Received: 10 August 2021
Accepted after revision: 30 September 2021
Article published online:
05 November 2021
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