Journal
TETRAHEDRON LETTERS
Volume 130, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2023.154761
Keywords
Copper catalyst; Cross-coupling; Nitrogen heterocycles; Ullmann reaction; 4-Benzothiazin-3-ones
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An efficient method for the synthesis of 1,4-benzothiazinone-3-one derivatives via a potassium carbonate and copper-mediated C-S and C-N Ullmann coupling reaction between 2-bromothiophenol and 2-haloacetanilide is reported. This approach eliminates the need for noble metals and expensive ligands, making it a simple and cost-effective strategy.
An efficient potassium carbonate and copper-mediated C-S and C-N Ullmann coupling reaction between 2-bromothiophenol and 2-haloacetanilide is reported here. This protocol affords a simple and efficient approach for the construction of 1,4-benzothiazinone-3-one derivatives, avoiding the limitations of using noble metals and expensive ligands for the first time.
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