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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 Einhorn–Brunner reaction ： ウィキペディア英語版 Einhorn–Brunner reaction The Einhorn–Brunner reaction is the designation for the chemical reaction of imides with alkyl hydrazines to form an isomeric mixture of 1,2,4-triazoles. It was initially described by the German chemist Alfred Einhorn in a paper, published in 1905, describing N-methylol compounds of amides. In 1914 chemist Karl Brunner published a paper expanding on Einhorn's research of the reaction pictured below, thus resulting in the naming as the Einhorn-Brunner. Further research by Brunner, and others in the scientific community, have proven successful synthesis of substituted 1,2,4-triazole products from various imides and hydrazines.〔 *〕〔 *〕 ==Regioselectivity== In the case that the R groups of the imide are different, the reaction has regioselectivity. In their research on the synthesis of 1,2,4-triazoles, Potts determined that the strongest acidic group attached to the side of the imide will be favored for the 3 position on the triazole ring.〔 In the diagram below, if one considers the blue R group to be more acidic in respect to the green, the favored product would be the isomer on the right. 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「Einhorn–Brunner 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.