asymmetric reaction的意思|示意

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《英语单词asymmetric reaction的用法讲解》

单词asymmetric reaction指的是不对称反应，这种反应是指反应中反应物不对称，即反应物有不同的构造。一个最常见的例子是同反异构反应。就是分子在反应中，形成两种不同的类型的分子，一种是称为左旋异构体，一种是称为右旋异构体。

一个著名的不对称反应是金属催化的asymmetric hydrogenation反应。它指的是利用金属催化剂，可以将一种叫做胺的化合物与氢原子结合，而不代表氢原子以完全不对称的方式排列，从而形成不同的的异构体，这也就是为什么这种反应被称为不对称反应。

另一个重要的不对称反应是asymmetric allylic substitution (AAS)反应。这种反应主要是指使用金属催化剂，来使分子内的双键如下的反应发生能量转移，改变反应物的构造，从而使反应产生不对称的结果。

最后，另一种常见的不对称反应是asymmetric dihydroxylation (ADO)反应。它是一种应用挥发性溶剂强化配合物作用的反应，主要是用于取代反应中的一个氢原子或另一个原子，使得，不同构型的产物产生不对称结构。

总之，asymmetric reaction是一种特定的化学反应，即反应中反应物结构不对称，在此反应中，可以形成不同的产物构型，称为异构体。上面举出的三种反应：金属催化的asymmetric hydrogenation反应，asymmetric allylic substitution反应，以及asymmetric dihydroxylation反应，都是不对称反应的代表。

Asymmetric reactions are a specific type of chemical reaction where the reactants have different structures. One of the most common examples is the isomerization reaction, where a molecule undergoes a reaction, forming two different types of molecule, one known as the left-handed isomer and the other as the right-handed isomer.

One famous asymmetric reaction is the metal-catalyzed asymmetric hydrogenation reaction. This refers to the use of metal catalysts to bond an amine compound to hydrogen atoms in such a way that the hydrogen atoms are arranged in a completely asymmetrical manner, thus forming different isomers, hence why it is called an asymmetric reaction.

Another important asymmetric reaction is the asymmetric allylic substitution (AAS) reaction. This refers to the use of a metal catalyst to cause energy transfer within a molecule, altering the structure of the reactant, so that the reaction produces an asymmetrical result.

Finally, another common asymmetric reaction is the asymmetric dihydroxylation (ADO) reaction. This is a reaction that uses volatile solvents to promote the coordination of complexes, mainly to replace one of the hydrogen atoms or another atom within the reaction, so that different configurations of products are formed with the asymmetric structure.

In conclusion, asymmetric reaction is a specific type of chemical reaction where the reactants are structured asymmetrically, and in this reaction, different product configurations can be formed, known as isomers. The three reactions mentioned above, the metal-catalyzed asymmetric hydrogenation reaction, the asymmetric allylic substitution reaction, and the asymmetric dihydroxylation reaction, are all representatives of asymmetric reactions.