V2EX methanesulfonyl chloride

Methanesulfonyl Chloride

定义 Definition

甲磺酰氯(缩写常见为 MsCl):一种常用的有机合成试剂,主要用于把醇(ROH)转化为更好的离去基(甲磺酸酯,ROSOCH),从而便于后续取代反应或消除反应。它也可用于某些胺的磺酰化反应。(该词也常出现在“磺酰氯/磺酰化试剂”相关语境中。)

发音 Pronunciation (IPA)

/mθen.slfonl klrad/

例句 Examples

Methanesulfonyl chloride is used to activate alcohols in synthesis.
甲磺酰氯常用于在合成中“活化”醇类底物。

After cooling the reaction to 0°C, we added methanesulfonyl chloride dropwise to form the mesylate, which was then displaced by a nucleophile in the next step.
将反应冷却至 0°C 后,我们滴加甲磺酰氯生成甲磺酸酯(mesylate),随后在下一步中被亲核试剂取代。

词源 Etymology

该名称由三部分构成:methane-(甲烷/甲基来源,指 CH)、sulfonyl(磺酰基,指 SO 的酰基形式)、chlorid(氯化物,表示与氯相关、此处对应 SOCl)。合起来表示结构为 CHSOCl 的“甲基取代的磺酰氯”。

相关词 Related Words

文学与著作 Literary / Notable Works

  • March’s Advanced Organic Chemistry(高级有机化学参考书中常在“醇的活化/磺酸酯形成”部分提及 MsCl)
  • Greene’s Protective Groups in Organic Synthesis(保护基与官能团转化相关章节会涉及用 MsCl 生成甲磺酸酯)
  • Organic Syntheses(期刊/汇编中多种标准化合成步骤会出现 methanesulfonyl chloride 的使用)
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