V2EX regioisomer

Regioisomer

释义 Definition

区域异构体;位置异构体:指在分子骨架基本相同、官能团种类也相同的情况下,官能团(或取代基)连接的位置不同而形成的一组异构体。常见于加成、取代等反应中,用来描述“生成物连到哪个位置”的差异。(在更广义上,它属于结构异构的一种。)

发音 Pronunciation

/ridioasmr/

例句 Examples

The reaction produced two regioisomers.
该反应生成了两种区域异构体。

Depending on the catalyst, the alkene can give a different major regioisomer in the addition step.
取决于催化剂的不同,烯烃在加成步骤中可能会产生不同的主要区域异构体。

词源 Etymology

regio- 来自拉丁语 regio(“区域、位置”),强调“发生在分子哪个位置”;isomer 来自希腊语 isos(“相同”)+ meros(“部分”),意为“由相同部分构成但结构不同的化合物”。合起来 regioisomer 就是“位置不同导致的异构体”。

相关词 Related Words

文学与典籍 Literary Works

  • Organic Chemistry(Clayden, Greeves, Warren):在亲电加成、自由基反应等章节频繁讨论主要/次要regioisomer的形成。
  • March’s Advanced Organic Chemistry(Smith & March):用于讲解区域选择性(regioselectivity)与机理控制时的核心术语。
  • Advanced Organic Chemistry(Carey & Sundberg):在反应选择性与机理分析中常用 regioisomer 对比不同连接方式的产物。
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