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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 DeMayo reaction ： ウィキペディア英語版 DeMayo reaction The DeMayo reaction is a photochemical reaction in which the enol of a 1,3-diketone reacts with an alkene (or another species with a C=C bond) and the resulting cyclobutane ring undergoes a retro-aldol reaction to yield a 1,5-diketone:〔Li, Jie Jack. ''Named Reactions: A Collection of Detailed Reaction Mechanisms.'' Springer: 2009, p. 173.〕 The net effect is to add the two carbon atoms in the C=C double bond between the two carbonyl groups of the diketone. It is thus useful in syntheses both as a relatively selective way to join two parts of a molecule and as a way to apply the more developed chemistry of 1,3-diketone synthesis to 1,5-diketones. The first part is a () cycloaddition. The ensuing retro-aldol cleavage is favored by the relative instability of the cyclobutane ring. ==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「DeMayo reaction」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.