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Ritter反应（里特反应）是用 烷基化试剂 （如异丁烯与强酸）将腈转化为 N-烷基酰胺 的一个反应。 该反应以美国化学家John Joseph Ritter的名字命名。 某些伯醇、仲醇、叔醇、苄醇，以及乙酸叔丁酯都可以在强酸存在下产生稳定的 碳正离子，从而与腈类发生Ritter反应生成酰胺。 氰化氢、脂肪族腈、芳香族腈、不饱和腈和二腈类也都能发生反应。 以异丁烯和氰化氢为原料，可以制得 叔丁胺。 Ritter反应是少数能在三级碳原子处生成C－N键的反应之一。 能够产生稳定的碳正 …

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2020年1月2日 · 广义上，腈类化合物与碳正离子反应生成 N -烷基酰胺的反应统称为Ritter type反应，实际上使用最多的碳正离子前体依然是烯烃和醇，常用的酸包括质子酸H 2 SO 4 、HClO 4 、RSO 3 H、PPA等和Lewis酸如AlCl 3 、BF 3 OEt 2 、SbCl 5 等。 Ritter反应的机理并不复杂，与Beckmann重排反应具有相似性，现以底物醇为例对反应机理进行简要介绍。 首先醇羟基被质子化后以水的形式离去得到碳正离子，腈类化合物的氰基亲核进攻碳正离子得到腈鎓离 …

Give us the brief (or write a few keywords or a brief). 2. Select category. Generate your copy → . by Saber & Abdur Rahman ...

2024年7月1日 · The short answer is: anyone who writes is a writer. However, becoming a writer who’s serious about their professional career requires lots of work, and if you’re wondering how to become a professional writer, you’re here to start your journey towards a productive and successful literary career. How do you become a writer?

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