Spectroscopic study of alkyl vinyl ketones.
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概要
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Alkyl vinyl ketones have two conformations, <I>s</I>-<I>cis</I> and <I>s</I>-<I>trans</I>. The ratios of the two conformers are given by comparing their IR with NMR data. The conformer of <I>s</I>-<I>cis</I> is given by the equation, Percentage of <I>s</I>-<I>cis</I>=180. (<I>Δ</I>δ−0.15) (%), where <I>Δ</I>δ is the chemical shift difference between <I>cis</I> and <I>trans</I> protons for carbonyl group. The value of <I>ΔF</I> obtained by means of the equation is related to steric factors Es<SUP>c</SUP> of bearing alkyl groups. The ratio <I>s</I>-<I>cis</I>/<I>s</I>-<I>trans</I> is determined by the bulkiness of the alkyl group.
- 公益社団法人 日本化学会の論文
著者
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NAITO Ikuo
Department of Photography, Kyushu Sangyo University
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Kinoshita Akihiro
Department Of Biochemistry And Calcified Tissue Metabolism Faculty Of Dentistry Osaka University
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Yonemitsu Tadashi
Department Of Industrial Chemistry Faculty Of Engineering Kyushu Sangyo University
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Yonemitsu Tadashi
Department of Photography, Kyushu Sangyo University
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Naito Ikuo
Department of Photography Kyushu Sangyo University
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Kinoshita Akihiro
Department of Photography, Kyushu Sangyo University
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