nucleophilic substitution reaction

基本解釋

• [化學(xué)]親核取代親核取代反應(yīng)

英漢例句

雙語(yǔ)例句

• Two derivative dyes from the parent dyes were obtained by nucleophilic substitution reaction in which two primary aminophenol were employed as the nucleophilic reagent.
  將母體染料的中位氯原子用氨基酸試劑親核取代，衍生合成了兩個(gè)中位氨基酸取代的七甲川菁染料。
• Aripiprazole in overall yield of 68% was synthesized from 2,3-dichloroaniline by a three-step nucleophilic substitution reaction in yield of 83%, 91% and 90%, respectively.
  以2，3-二氯苯胺為原料，經(jīng)3步親核取代反應(yīng)合成了阿立哌唑。3步反應(yīng)的收率分別為83%，91%和90%；總收率68%。
• The paper shows the relationship between the change of configuration turning and configuration marking, in bimolecular nucleophilic substitution reaction, according to the change order of group.
  以基團(tuán)次序地位變化為線索，揭示雙分子親核取代反應(yīng)中， 構(gòu)型翻轉(zhuǎn)與構(gòu)型標(biāo)記變化的關(guān)系．。

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詞組短語(yǔ)

短語(yǔ)

• nucleophilic aromatic substitution reaction 親核芳香取代反應(yīng)
• bimolecular nucleophilic substitution reaction 雙分子親核取代反應(yīng)
• vicarious nucleophilic substitution reaction 替代親核取代反應(yīng)
• aromatic nucleophilic substitution reaction 芳香親核取代反應(yīng)
• internal nucleophilic substitution reaction 分子內(nèi)親核取代反應(yīng)

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專業(yè)釋義

化學(xué)

• 親核取代

  3,8-Bis-(1-hydroxyethyl)deuteroporphyrin dimethyl ester(Ⅲ) was prepared from hemin(I) by the ways of HBr-H3CCOOH addition reaction,OH-nucleophilic substitution reaction and anhydrous hydrogen chloride catalyzed esterification. It was then oxidized by Jones reagent to form 3,8-bisacetyl deuteroporphyrin dimethyl ester(Ⅳ).
  以氯化血紅素(Ⅰ)為原料,經(jīng)過(guò)溴化氫-冰醋酸加成反應(yīng)、羥基親核取代反應(yīng)和無(wú)水氯化氫催化酯化反應(yīng)制得3,8雙--(1羥-基乙基)次卟啉二甲酯(Ⅲ),然后通過(guò)瓊斯試劑氧化反應(yīng)制備了3,8雙-乙?；芜策柞?Ⅳ)。

• 親核取代反應(yīng)