Synthesis and conformational properties of 2-carboxy-15-crown-5 and its cation complexes.

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概要

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• 2-Carboxy-15-crown-5 has been prepared by potassium permanganate oxidation in modest yield. Its native conformation has been assessed by using infrared, NMR, and both MM2′ and MNDO calculations. Neutral cation complexes (of the form crown-COOH.MX) of this macrocycle with NaCl, NaBr, NaI, KCl, and CaCl<SUB>2</SUB> have been prepared and studied. It is concluded that the carbonyl oxygen atom is a donor for the ring bound cation, an observation supported by the calculated lowest energy conformation of the non-complexed macrocycle.

• 公益社団法人 日本化学会の論文

著者

• Takahashi Toshio

  Lion Corporation

• Mallen Jesus

  Department of Chemistry, University of Miami

• Lorenzo Dalia

  Department of Chemistry, University of Miami

• Khanna Raj

  Department of Chemistry, University of Maryland

• Nishikawa Masanori

  Toray Systems Center Inc.

• Gokel George

  Department of Chemistry, University of Miami

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• コバルトおよびニッケルの溶媒抽出に及ぼすリン酸エステルの構造効果〔英文〕
• Synthesis and conformational properties of 2-carboxy-15-crown-5 and its cation complexes.

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