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Abstract <p>The study was aimed at selective synthesis of monoimines from camphor and aliphatic diamines. Among the three diamines used, ethane-1,2-diamine, propane-1,3-diamine, and hexane-1,6-diamine, the latter in an amount of 5 equiv showed the highest selectivity (more than 90%). The selectivity in the reactions with hexane-1,6-diamine and propane-1,3-diamine remained high, whereas in the case of ethane-1,2diamine the selectivity was lower (77.4%). These findings are well explained by the proposed mechanism involving zinc carboxylates as catalysts.</p>

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Substituted Ureas and Their Analogues Containing Cage Fragments: III. Synthesis of Monoimines Based on Camphor and Aliphatic Diamines

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • D. M. Zapravdina,
  • J. R. Bynerie,
  • A. D. Maximova,
  • I. A. Yakushev,
  • V. V. Burmistrov

摘要

Abstract

The study was aimed at selective synthesis of monoimines from camphor and aliphatic diamines. Among the three diamines used, ethane-1,2-diamine, propane-1,3-diamine, and hexane-1,6-diamine, the latter in an amount of 5 equiv showed the highest selectivity (more than 90%). The selectivity in the reactions with hexane-1,6-diamine and propane-1,3-diamine remained high, whereas in the case of ethane-1,2diamine the selectivity was lower (77.4%). These findings are well explained by the proposed mechanism involving zinc carboxylates as catalysts.