primary amine

简明释义

伯胺

英英释义

例句

1.A common example of a primary amine is ethylamine, which is used in various chemical reactions.

一个常见的初级胺例子是乙胺，它用于各种化学反应中。

2.The reactivity of primary amines makes them useful intermediates in organic synthesis.

由于初级胺的反应性，它们在有机合成中作为有用的中间体。

3.The synthesis of primary amines can be achieved through the reductive amination of aldehydes.

可以通过醛的还原胺化反应合成初级胺。

4.In organic chemistry, a primary amine is defined as an amine where the nitrogen atom is attached to one alkyl or aryl group.

在有机化学中，初级胺被定义为氮原子连接到一个烷基或芳基的胺。

5.When testing for primary amines, we often use the ninhydrin reagent to produce a colored product.

在测试初级胺时，我们通常使用茚三酮试剂生成有色产物。

作文

In the field of organic chemistry, understanding various functional groups is crucial for mastering the behavior and reactivity of different compounds. One such important functional group is the amine, which plays a significant role in numerous biological and chemical processes. Among the different types of amines, the primary amine (一胺) is particularly noteworthy due to its unique structure and properties. A primary amine is defined as an amine where one of the nitrogen atom's hydrogen atoms is replaced by an alkyl or aryl group, resulting in a structure that can be represented as R-NH2, where R denotes the hydrocarbon chain. This simple structure allows primary amines to participate in a variety of chemical reactions, making them valuable intermediates in organic synthesis.The significance of primary amines extends beyond their basic structure; they are often found in many natural products and pharmaceuticals. For instance, amino acids, which are the building blocks of proteins, contain primary amines in their structure. The presence of a primary amine group contributes to the overall polarity of these molecules, influencing their solubility and reactivity. Additionally, primary amines can act as nucleophiles in chemical reactions, allowing them to react with electrophiles to form new compounds. This characteristic is particularly useful in the synthesis of various drugs and agrochemicals.Moreover, primary amines can undergo several transformations, including acylation and alkylation, which further expands their utility in organic chemistry. For example, when a primary amine reacts with an acid chloride, it forms an amide, a reaction that is widely utilized in the production of pharmaceuticals. Similarly, primary amines can be converted into more complex structures through various coupling reactions, demonstrating their versatility in synthetic pathways.However, working with primary amines requires careful consideration of their properties. They are typically more reactive than secondary and tertiary amines, making them susceptible to oxidation and other side reactions. This reactivity necessitates the use of specific protective strategies during synthetic procedures to avoid unwanted by-products. Furthermore, primary amines can exhibit distinct physical properties, such as higher boiling points compared to hydrocarbons of similar molecular weight, due to their ability to form hydrogen bonds. This property is essential for understanding their behavior in different environments, such as in biological systems.In conclusion, primary amines (一胺) are fundamental components in organic chemistry that offer a range of applications in both research and industry. Their unique structural characteristics, combined with their reactivity, make them essential for synthesizing various compounds, including pharmaceuticals and natural products. As we continue to explore the vast world of organic chemistry, the importance of understanding primary amines cannot be overstated, as they are integral to many chemical processes and innovations.

在有机化学领域，理解各种官能团对于掌握不同化合物的行为和反应性至关重要。其中一个重要的官能团是胺，它在许多生物和化学过程中发挥着重要作用。在不同类型的胺中，primary amine（一胺）尤其值得注意，因为它具有独特的结构和性质。primary amine 被定义为一种胺，其中氮原子的一个氢原子被烷基或芳基取代，从而形成可以表示为 R-NH2 的结构，其中 R 表示烃链。这种简单的结构使得primary amines能够参与多种化学反应，使其成为有机合成中的宝贵中间体。primary amines 的重要性不仅仅体现在其基本结构上；它们通常存在于许多天然产物和药物中。例如，氨基酸是蛋白质的基本组成部分，它们的结构中含有primary amines。primary amine 组的存在使这些分子的极性增强，从而影响它们的溶解性和反应性。此外，primary amines可以作为亲核试剂参与化学反应，使其能够与电亲体反应生成新化合物。这一特性在制药和农用化学品的合成中尤为重要。此外，primary amines可以经历多种转化，包括酰化和烷基化，这进一步扩展了它们在有机化学中的用途。例如，当primary amine与酸氯化物反应时，会形成酰胺，这一反应在制药生产中得到广泛应用。同样，primary amines可以通过各种偶联反应转化为更复杂的结构，展示了它们在合成路径中的多功能性。然而，处理primary amines需要仔细考虑它们的性质。与二级和三级胺相比，它们通常更具反应性，使其容易被氧化和其他副反应所影响。这种反应性要求在合成过程中采用特定的保护策略，以避免产生不必要的副产品。此外，primary amines可能表现出独特的物理性质，例如，与相似分子量的烃相比，沸点较高，这是由于它们能够形成氢键。这一特性对于理解它们在不同环境中的行为至关重要，例如在生物系统中。总之，primary amines（一胺）是有机化学中的基本组成部分，在研究和工业中提供了一系列应用。它们独特的结构特征，加上它们的反应性，使其在合成各种化合物（包括药物和天然产品）方面至关重要。随着我们继续探索广阔的有机化学世界，理解primary amines的重要性不容小觑，因为它们在许多化学过程和创新中都是不可或缺的。