Recognition of Anions Using p-Nitrophenyl Thiourea Based on 1,1- Binaphthyl-2,2-diol

Youhei      Takahashi; Tatsunori      Sato; Kazuaki      Ito

doi:10.2174/157017808786857480

Abstract

The di-thioureas (1) and mono-thioureas (3) based on 1,1-binaphthyl-2,2-diol exhibited a preference for Cl- with a 1:1 stoichiometry. The cooperativity of the two binding sites (two thiourea groups for 1, thiourea and hydroxyl groups for 3) for anion binding was established by comparing the binding of the mono-thiourea receptors (2) based on naphthyl.

Keywords: Anion receptor, p-nitrophenyl thiourea, 1,1'-binaphthyl-2, 2'-diol, chloride anion selectivity

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Letters in Organic Chemistry

Title: Recognition of Anions Using p-Nitrophenyl Thiourea Based on 1,1- Binaphthyl-2,2-diol

Volume: 5 Issue: 8

Author(s): Youhei Takahashi, Tatsunori Sato and Kazuaki Ito

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Keywords: Anion receptor, p-nitrophenyl thiourea, 1,1'-binaphthyl-2, 2'-diol, chloride anion selectivity

Abstract: The di-thioureas (1) and mono-thioureas (3) based on 1,1-binaphthyl-2,2-diol exhibited a preference for Cl- with a 1:1 stoichiometry. The cooperativity of the two binding sites (two thiourea groups for 1, thiourea and hydroxyl groups for 3) for anion binding was established by comparing the binding of the mono-thiourea receptors (2) based on naphthyl.

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Takahashi Youhei, Sato Tatsunori and Ito Kazuaki, Recognition of Anions Using p-Nitrophenyl Thiourea Based on 1,1- Binaphthyl-2,2-diol, Letters in Organic Chemistry 2008; 5 (8) . https://dx.doi.org/10.2174/157017808786857480