Studies on the Sulfur-containing Chelating Agents. XXXV. Determination of Acid Dissociation Constants of N-Phenyl- and N-Ethyl-β-mercaptocin-namamide and Thiodibenzoylmethane by Solvent Extraction Method
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Acid dissociation constants and partition coefficients of N-phenyl-β-mercaptocinnamamide (I), N-ethyl-β-mercaptocinnamamide (II) and monothiodibenzoylmethane (III) were determined by the solvent extraction method in various solvent systems, by the use of 35S-labeled species of these chelating agents. The results are considerably different from those obtained spectrophotometrically. The hydrolysis and the oxidation were found to occur in aqueous organic solvent in parallel with the dissociation in I and II, and III respectively. The solvent extraction method was regarded to be preferable than the spectrophotometric method, because the influences of the side reactions can be made very little by the use of solvent extraction method.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 20 (9), 2000-2007, 1972
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390001204172805632
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- NII論文ID
- 110003621404
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可