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Study on the Reactions of Chromous Acetate with α, α'-Haloketo-steroids
http://hdl.handle.net/20.500.12000/23669
http://hdl.handle.net/20.500.12000/2366999dbe6e8-c613-4152-b9e2-3d3b2cebb65e
名前 / ファイル | ライセンス | アクション |
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Item type | デフォルトアイテムタイプ(フル)(1) | |||||||||
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公開日 | 2012-03-05 | |||||||||
タイトル | ||||||||||
タイトル | Study on the Reactions of Chromous Acetate with α, α'-Haloketo-steroids | |||||||||
言語 | ja | |||||||||
作成者 |
Kuniyoshi, Masayuki
× Kuniyoshi, Masayuki
× 国吉, 正之
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アクセス権 | ||||||||||
アクセス権 | open access | |||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
内容記述 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 5α-cholestan-4-one and 3β-acetoxy-5α-cholestan-6-one were prepared via several synthetic pathway from cholesterol. They were further converted into dibromo-derivatives; 3α, 5β-dibromo-4-oxo compound and 5α, 7α-dibromo-6-oxo compound respectively, by treatment with bromine in acetic acid containing a trace of 47% boron trifluoride ethyl ether at room temparatur. While chromous acetate was prepared from chromic chloride, zinc-amalgam and sodium acetate, and then it's reactivity for the a, α'-dibromoketo-steroids discribed above was investigated. The reaction of chromous acetate with the dibromoketo-compounds in acetic acid-chloroform (3:1) solution gave the reductive debrominated products, i.e., monobromoketo-compounds (about 20-25%) and its parent keto-compounds (about 8-10%). | |||||||||
内容記述 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 紀要論文 | |||||||||
出版者 | ||||||||||
言語 | ja | |||||||||
出版者 | 琉球大学理工学部 | |||||||||
出版者 | ||||||||||
言語 | en | |||||||||
出版者 | Science and Engineering Division, University of the Ryukyus | |||||||||
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言語 | eng | |||||||||
資源タイプ | ||||||||||
資源タイプ | departmental bulletin paper | |||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
出版タイプ | ||||||||||
出版タイプ | NA | |||||||||
出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||
識別子 | ||||||||||
識別子 | http://hdl.handle.net/20.500.12000/23669 | |||||||||
識別子タイプ | HDL | |||||||||
収録物識別子 | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AN0025080X | |||||||||
収録物名 | ||||||||||
言語 | ja | |||||||||
収録物名 | 琉球大学理工学部紀要. 理学編 | |||||||||
収録物名 | ||||||||||
言語 | en | |||||||||
収録物名 | Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences | |||||||||
書誌情報 |
号 22, p. 55-61, 発行日 1976-09 |