单词盒子

nucleophilic substitution reaction

N 开头单词

基本解释

  • [化学]亲核取代亲核取代反应

英汉例句

    双语例句

  • Two derivative dyes from the parent dyes were obtained by nucleophilic substitution reaction in which two primary aminophenol were employed as the nucleophilic reagent.
    将母体染料的中位氯原子用氨基酸试剂亲核取代，衍生合成了两个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2，3-二氯苯胺为原料，经3步亲核取代反应合成了阿立哌唑。3步反应的收率分别为83%，91%和90%；总收率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.
    以基团次序地位变化为线索，揭示双分子亲核取代反应中， 构型翻转与构型标记变化的关系．。

词组短语

    短语

  • nucleophilic aromatic substitution reaction 亲核芳香取代反应
  • bimolecular nucleophilic substitution reaction 双分子亲核取代反应
  • vicarious nucleophilic substitution reaction 替代亲核取代反应
  • aromatic nucleophilic substitution reaction 芳香亲核取代反应
  • internal nucleophilic substitution reaction 分子内亲核取代反应

专业释义

    化学

  • 亲核取代

    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).
    以氯化血红素(Ⅰ)为原料,经过溴化氢-冰醋酸加成反应、羟基亲核取代反应和无水氯化氢催化酯化反应制得3,8双--(1羟-基乙基)次卟啉二甲酯(Ⅲ),然后通过琼斯试剂氧化反应制备了3,8双-乙酰基次卟啉二甲酯(Ⅳ)。

  • 亲核取代反应