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<p>4-Oxo-4,5,6,7-tetrahydrobenzofurazan, which is easily synthesized from cyclohexanone, can be efficiently converted to 4-(2-carboxyethyl)- and 4-[3-<i>(E)</i>-hydroxyimino)-3-nitropropyl]furazan-3-carboxylic acids by the oxidation with nitric acid. Subsequent alkaline oxidation provides a route to furazan-3,4-dicarboxylic acid.</p>

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New approach to furazan dicarboxylic acids

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • E. S. Tochilina,
  • K. Yu. Suponitsky,
  • A. B. Sheremetev

摘要

4-Oxo-4,5,6,7-tetrahydrobenzofurazan, which is easily synthesized from cyclohexanone, can be efficiently converted to 4-(2-carboxyethyl)- and 4-[3-(E)-hydroxyimino)-3-nitropropyl]furazan-3-carboxylic acids by the oxidation with nitric acid. Subsequent alkaline oxidation provides a route to furazan-3,4-dicarboxylic acid.