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KINETICS OF THE REACTION OF trans-3- METHYLTHIOACRYLOPHENONE WITH HYDROXIDE ION. DETECTION OF CARBANION INTERMEDIATE BY THE DIFFERENCE SPECTRUM.
http://hdl.handle.net/10091/4493
http://hdl.handle.net/10091/44935ef19bce-c263-4910-a313-abae07c472b6
| 名前 / ファイル | ライセンス | アクション |
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Liberal_arts27-14.pdf (426.7 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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| 公開日 | 2010-02-12 | |||||||
| タイトル | ||||||||
| タイトル | KINETICS OF THE REACTION OF trans-3- METHYLTHIOACRYLOPHENONE WITH HYDROXIDE ION. DETECTION OF CARBANION INTERMEDIATE BY THE DIFFERENCE SPECTRUM. | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||||
| タイプ | departmental bulletin paper | |||||||
| 著者 |
KAWASAKI, Atsushi
× KAWASAKI, Atsushi
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| 出版者 | ||||||||
| 出版者 | 信州大学教養部 | |||||||
| 引用 | ||||||||
| 内容記述 | 信州大学教養部紀要. 27: 249-256(1993) | |||||||
| 書誌情報 |
信州大学教養部紀要. 巻 27, p. 249-256, 発行日 1993-03-25 |
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| 抄録 | ||||||||
| 内容記述 | Reaction of trans-3-methylthioacrylophenone (MeSAcr) with hydroxide ion was followed spectrophotometric ally in aqueous solution. The reaction was found to be a typical series reaction : MeSAcr → benzoylacetaldehyde enolate → acetophenone. A carbanion intermediate, the enolate ion, was detected by the coincidence of difference spectra between the spectra in basic reaction solutions and in their acidified solutions with those between the spectra of benzoylacetaldehyde enolate and of the parent aldehyde. The first step of reaction in eq. (3) was kinetically first order in MeSAcr and first order in hydroxide ion. The second-order rate constants were obtained for MeSAcr-hydroxide ion combination reactions. The first-order rate coefficients for the second step of reaction in eq. (3) were obtained at the later stage of reaction where almost all MeSAcr was consumed. The rate coefficients are expressed as: k_<obs> = K₀ + k_<OH>⁻[OH⁻]. This is completely consistent with a mechanism for the hydrolysis of enolates of dicarbonyl compounds. | |||||||
| 資源タイプ（コンテンツの種類） | ||||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 1340-9972 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN10176022 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
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KAWASAKI, Atsushi, 1993, KINETICS OF THE REACTION OF trans-3- METHYLTHIOACRYLOPHENONE WITH HYDROXIDE ION. DETECTION OF CARBANION INTERMEDIATE BY THE DIFFERENCE SPECTRUM.: 信州大学教養部, 249–256 p.
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