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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 Barton-Zard synthesis ： ウィキペディア英語版 Barton–Zard reaction The Barton-Zard reaction is a route to pyrrole derivatives via the reaction of a nitroalkene with an α-isocyanoacetate under basic conditions.〔 pp.43-4〕 It is named after Derek Barton and Samir Zard who first reported it in 1985. ==Mechanism== The mechanism consists of five steps: * Base catalyzed carbonyl enolizaton of the α-isocyanide. * Michael-type addition between the α-isocyanide carbonyl enolate and the nitroalkene. * 5-endo-dig cyclization (see: Baldwin's rules). * Base catalyzed elimination of the nitro group. * 1,5-sigmatropic rearrangement leading to aromatisation. 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「Barton–Zard 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.