The organic compounds unable to be synthesized under normal reaction can be fulfilled by means of umpolung.
在有机合成中一些不能用常规反应合成的有机化合物可以通过极性转换的方式来完成。
In this article, the fundamental concept of umpolung and its role in organic synthesis are briefly discussed.
本文主要论述极性转换的基本概念和它在有机合成中的作用。
The concept and some applications about umpolung were expounded, and some new methods about the application of the umpolung were given.
极性转换方法是一种重要的有机合成新方法，对极性转换的概念和应用作了论述，并对一些极性转换的新技术作了简。
The various methods for the umpolung of carbonyl compounds (aldehydes and ketones), secondary amines and the most frequently used umpolung reagents are introduced.
先介绍了羰基化合物(醛、酮)的极性转换的各种方法，然后谈到胺的极性转换方法和最常用的极性转换试剂。
The article is about the umpolung in organic synthesis reaction. The application of umpolung is discussed and summed up. It has the directive function for organic synthesis.
本文重点讨论了在有机合成反应中的化合物极性翻转问题，并对极性翻转的应用进行了总结和讨论，对有机合成有一定的指导作用。
The article is about the umpolung in organic synthesis reaction. The application of umpolung is discussed and summed up. It has the directive function for organic synthesis.
本文重点讨论了在有机合成反应中的化合物极性翻转问题，并对极性翻转的应用进行了总结和讨论，对有机合成有一定的指导作用。
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