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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Clemmensen reduction ： ウィキペディア英語版 Clemmensen reduction Clemmensen reduction is a chemical reaction described as a reduction of ketones (or aldehydes) to alkanes using zinc amalgam and hydrochloric acid. This reaction is named after Erik Christian Clemmensen, a Danish chemist.〔(Biographies of Chemists ), accessed 6 Feb 2007〕 The Clemmensen reduction is particularly effective at reducing aryl-alkyl ketones,〔; Vol. 15, p.64 (1935)〕〔; Vol. 33, p.17 (1953).〕 such as those formed in a Friedel-Crafts acylation. With aliphatic or cyclic ketones, zinc metal reduction is much more effective.〔; Vol. 53, p.86 (1973).〕 The substrate must be unreactive to the strongly acidic conditions of the Clemmensen reduction. Acid sensitive substrates should be reacted in the Wolff-Kishner reduction, which utilizes strongly basic conditions; a further, milder method is the Mozingo reduction. The oxygen atom is lost in the form of one molecule of water. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Clemmensen reduction」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.