V2EX racemize

Racemize

Definition 定义

racemize(动词,化学/生物化学):使手性化合物发生消旋化,即把原本偏向某一对映体(如 R 或 S)的样品转变为对映体等量混合物(外消旋体,racemate),从而使旋光性减弱或消失。
(也常指:在反应、加热、酸/碱条件或酶作用下“逐渐消旋”。)

Pronunciation 发音

/resmaz/

Examples 例句

Heating can racemize the compound.
加热可能会使该化合物消旋化。

Under acidic conditions, the chiral center may racemize through an intermediate, reducing the product’s enantiomeric purity.
在酸性条件下,这个手性中心可能通过某种中间体发生消旋化,从而降低产物的对映体纯度。

Etymology 词源

来自 raceme(“总状花序”;也用来指一种早期分离得到的“外消旋酒石酸/葡萄酸”所关联的名称)+ -ize(“使……化”)。在化学语境中,racem- 逐渐固定用来表示“外消旋/对映体等量混合”的概念,因此 racemize 就是“使变成外消旋体”。

Related Words 相关词

Literary/Notable Works 文学与著作例证

  • March’s Advanced Organic Chemistry: Reactions, Mechanisms, and Structure(高级有机化学机理经典教材中常用 racemize/racemization 讨论反应机理与立体化学结果)
  • Organic Chemistry(Jonathan Clayden, Nick Greeves 等,《有机化学》教材中在取代反应、烯醇化/烯醇盐等章节常出现 racemization
  • *IUPAC Compendium of Chemical Terminology (the Gold Book)*(IUPAC《化学术语汇编》对 racemization 等概念有标准化表述)
  • Journal of Organic Chemistry(《有机化学杂志》大量研究论文会用 racemize 描述手性中心在条件下失去对映体纯度的过程)
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