Characterization of organic iodides with iodine-127 nuclear magnetic resonance spectroscopy

Natsuko Kagawa; Masaaki Suzuki; Noriyuki Kogure; Kazufumi Toume

doi:10.1016/j.tetlet.2015.09.016

Characterization of organic iodides with iodine-127 nuclear magnetic resonance spectroscopy

Natsuko Kagawa^*, Masaaki Suzuki, Noriyuki Kogure, Kazufumi Toume

^*この論文の責任著者

和漢医薬学総合研究所薬用資源管理部門

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

3 被引用数 (Scopus)

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The spectra of the Iodine-127 nucleus could not be readily obtained since it has a spin number, I, of 5/2 and a nonspherical charge distribution. When we applied ¹²⁷I NMR to organic iodides, the I^- and IO₄^- signals of organic molecules provided a clear singlet in solutions of (CD₃)₂S(O) or (CD₃)₂NC(O)D. The spectra of ¹²⁷I NMR revealed the oxidation state of iodine atoms in the organic molecule, which would not have been evident in the ¹H and ¹³C NMR spectra. Here, we report the practical examples of the characterization of organic iodides via solution-¹²⁷I NMR spectroscopy.

本文言語	英語
ページ（範囲）	5795-5798
ページ数	4
ジャーナル	Tetrahedron Letters
巻	56
号	42
DOI	https://doi.org/10.1016/j.tetlet.2015.09.016
出版ステータス	出版済み - 2015/10/14

ASJC Scopus 主題領域

生化学
創薬
有機化学

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10.1016/j.tetlet.2015.09.016

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title = "Characterization of organic iodides with iodine-127 nuclear magnetic resonance spectroscopy",

abstract = "The spectra of the Iodine-127 nucleus could not be readily obtained since it has a spin number, I, of 5/2 and a nonspherical charge distribution. When we applied 127I NMR to organic iodides, the I- and IO4- signals of organic molecules provided a clear singlet in solutions of (CD3)2S(O) or (CD3)2NC(O)D. The spectra of 127I NMR revealed the oxidation state of iodine atoms in the organic molecule, which would not have been evident in the 1H and 13C NMR spectra. Here, we report the practical examples of the characterization of organic iodides via solution-127I NMR spectroscopy.",

keywords = "Iodine, NMR spectroscopy, Solvent effects, Structure elucidation",

author = "Natsuko Kagawa and Masaaki Suzuki and Noriyuki Kogure and Kazufumi Toume",

year = "2015",

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doi = "10.1016/j.tetlet.2015.09.016",

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T1 - Characterization of organic iodides with iodine-127 nuclear magnetic resonance spectroscopy

AU - Kagawa, Natsuko

AU - Suzuki, Masaaki

AU - Kogure, Noriyuki

AU - Toume, Kazufumi

PY - 2015/10/14

Y1 - 2015/10/14

N2 - The spectra of the Iodine-127 nucleus could not be readily obtained since it has a spin number, I, of 5/2 and a nonspherical charge distribution. When we applied 127I NMR to organic iodides, the I- and IO4- signals of organic molecules provided a clear singlet in solutions of (CD3)2S(O) or (CD3)2NC(O)D. The spectra of 127I NMR revealed the oxidation state of iodine atoms in the organic molecule, which would not have been evident in the 1H and 13C NMR spectra. Here, we report the practical examples of the characterization of organic iodides via solution-127I NMR spectroscopy.

AB - The spectra of the Iodine-127 nucleus could not be readily obtained since it has a spin number, I, of 5/2 and a nonspherical charge distribution. When we applied 127I NMR to organic iodides, the I- and IO4- signals of organic molecules provided a clear singlet in solutions of (CD3)2S(O) or (CD3)2NC(O)D. The spectra of 127I NMR revealed the oxidation state of iodine atoms in the organic molecule, which would not have been evident in the 1H and 13C NMR spectra. Here, we report the practical examples of the characterization of organic iodides via solution-127I NMR spectroscopy.

KW - Iodine

KW - NMR spectroscopy

KW - Solvent effects

KW - Structure elucidation

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M3 - 学術論文

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VL - 56

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JO - Tetrahedron Letters

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Characterization of organic iodides with iodine-127 nuclear magnetic resonance spectroscopy

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