aromatic ring

简明释义

芳香基核

英英释义

例句

1.Many natural products contain an aromatic ring (芳香环) which contributes to their biological activity.

许多天然产物含有一个芳香环，这使其具有生物活性。

2.The synthesis of new drugs often involves modifications to the aromatic ring (芳香环) structure.

新药的合成通常涉及对芳香环结构的修改。

3.The stability of the compound is largely due to the presence of an aromatic ring (芳香环).

该化合物的稳定性主要归因于存在一个芳香环。

4.In organic chemistry, the reactivity of an aromatic ring (芳香环) can be influenced by substituents attached to it.

在有机化学中，一个芳香环的反应性可以受到附加取代基的影响。

5.An aromatic ring (芳香环) can stabilize a molecule through resonance.

一个芳香环可以通过共振稳定分子。

作文

The study of organic chemistry is fascinating, particularly when we delve into the structures and properties of various compounds. One of the most intriguing concepts in this field is the presence of an aromatic ring, which plays a crucial role in determining the behavior and characteristics of many organic molecules. An aromatic ring is a cyclic structure that contains alternating single and double bonds, leading to a unique stability known as resonance. This stability is a result of the delocalization of electrons within the ring, which allows them to spread out over multiple atoms rather than being confined to specific bonds. A classic example of a compound featuring an aromatic ring is benzene, which consists of six carbon atoms arranged in a hexagonal shape, with each carbon atom bonded to one hydrogen atom. The alternating double bonds in benzene are often represented by a circle within the hexagon, symbolizing the equal distribution of electron density across the structure. This property not only contributes to the stability of benzene but also influences its reactivity, making it resistant to addition reactions that typically affect alkenes. Instead, benzene undergoes substitution reactions, where one hydrogen atom is replaced by another atom or group, preserving the integrity of the aromatic ring.The significance of aromatic rings extends beyond simple hydrocarbons like benzene. Many biologically active compounds, including hormones, vitamins, and pharmaceuticals, contain aromatic rings in their structures. For instance, the amino acid phenylalanine has a side chain that includes a aromatic ring, which is essential for protein structure and function. Additionally, many drugs are designed to interact specifically with biological receptors, and the presence of an aromatic ring can enhance the binding affinity and specificity of these compounds.Moreover, the concept of aromaticity is not limited to just carbon-based compounds. Various heteroatoms, such as nitrogen or oxygen, can also be incorporated into aromatic rings, resulting in a diverse array of compounds known as heterocycles. These heterocyclic compounds are prevalent in nature and are often found in alkaloids, nucleic acids, and other essential biomolecules. The ability of these aromatic rings to stabilize different functional groups while maintaining their unique electronic properties makes them indispensable in both natural and synthetic chemistry.In conclusion, the aromatic ring is a fundamental structural feature in organic chemistry that contributes significantly to the properties and reactivity of numerous compounds. Its unique stability, due to electron delocalization, allows for a wide range of chemical behaviors, making it a key focus of study in both academic and industrial settings. Understanding the role of aromatic rings not only enhances our knowledge of organic molecules but also paves the way for advancements in drug design, material science, and biochemistry. As we continue to explore the intricacies of chemical structures, the aromatic ring will undoubtedly remain a central topic of interest.

有机化学的研究是迷人的，特别是当我们深入研究各种化合物的结构和性质时。在这个领域中，一个最引人入胜的概念是存在的芳香环，它在决定许多有机分子的行为和特性方面发挥着至关重要的作用。芳香环是一种循环结构，包含交替的单键和双键，从而导致一种被称为共振的独特稳定性。这种稳定性是由于环内电子的去局域化，这使得它们能够分布在多个原子上，而不是局限于特定的键。一个包含芳香环的经典化合物例子是苯，它由六个碳原子以六角形排列，每个碳原子与一个氢原子相连。苯中的交替双键通常用一个圆圈表示在六边形内，象征着电子密度在结构中的均匀分布。这一特性不仅有助于苯的稳定性，还影响其反应性，使其对通常影响烯烃的加成反应具有抵抗力。相反，苯经历取代反应，其中一个氢原子被另一个原子或基团替换，保持了芳香环的完整性。芳香环的重要性不仅限于简单的烃类如苯。许多生物活性化合物，包括激素、维生素和药物，其结构中都包含芳香环。例如，氨基酸苯丙氨酸的侧链包含一个芳香环，这对蛋白质的结构和功能至关重要。此外，许多药物被设计为特定地与生物受体相互作用，而芳香环的存在可以增强这些化合物的结合亲和力和特异性。此外，芳香性的概念不仅限于碳基化合物。各种杂原子，如氮或氧，也可以被纳入芳香环中，形成称为杂环的多样化化合物。这些杂环化合物在自然界中普遍存在，并且通常发现于生物碱、核酸和其他重要的生物分子中。这些芳香环能够在保持其独特电子特性的同时稳定不同的官能团，使其在自然和合成化学中不可或缺。总之，芳香环是有机化学中的一个基本结构特征，对众多化合物的性质和反应性有显著贡献。由于电子去局域化的独特稳定性，使其具有广泛的化学行为，使其成为学术和工业领域研究的关键焦点。理解芳香环的作用不仅增强了我们对有机分子的认识，而且为药物设计、材料科学和生物化学的进步铺平了道路。随着我们继续探索化学结构的复杂性，芳香环无疑将继续成为一个中心话题。