Optically Active Oligo- and Polyamides from Optically Active Spiro[3.3]heptane-2,6-dicarboxylic Acid

DOI Web Site 参考文献30件
  • Tang Hongzhi
    Graduate School of Materials Science, Japan Advanced Institute of Science and Technology [JAIST]
  • Miura Hiroshi
    Graduate School of Materials Science, Japan Advanced Institute of Science and Technology [JAIST]
  • Imae Ichiro
    Graduate School of Materials Science, Japan Advanced Institute of Science and Technology [JAIST]
  • Kawakami Yusuke
    Graduate School of Materials Science, Japan Advanced Institute of Science and Technology [JAIST]

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タイトル別名
  • Optically Active Oligo- and Polymides from Optically Active Spiro(3.3)heptane-2,6-dicarboxylic Acid.

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抄録

Optically active (R)-spiro[3.3]heptane-2,6-dicarboxylic acid was obtained by optical resolution with brucine. Its optical purity was confirmed by HPLC analysis on optically active stationary phase. The specific optical rotations of model compounds having one and two spiran units increased with increasing the number of spiran unit in sulfuric acid solution. On the contrary, the specific optical rotations showed opposite sign in organic solvents, such as N,N-dimethylformamide and N,N-dimethylacetamide, and the absolute values decreased with increasing the number of spiran unit. Polycondensation of (R)-spiro[3.3]heptane-2,6-dicarboxylic acid chloride and 3,3′-dimethoxybenzidine gave a polymer soluble in common organic polar solvents. This polymer showed a large positive Cotton effect.

収録刊行物

  • Polymer Journal

    Polymer Journal 31 (11-2), 1041-1044, 1999

    The Society of Polymer Science, Japan

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