carbonyls

简明释义

英[/ˈkɑː.bən.ɪl/]美[/ˈkɑr.bə.nɪl/]

n. 金属羰基合物（carbonyl 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.In some cases, the levels of reactive carbonyls were reduced by half, the researchers say.

在一些案件中，各级功羰被削减了一半，但研究人员说。

2.The double bond is attacked by the oxygen, forming aldehydes and carbonyls.

双结合受氧的攻击形成乙醛和碳酸基。

3.Addition to carbonyls is one of the most important reactions in organic chemistry.

对羰基的加成作用是有机化学中最重要的反应之一。

4.Iron and nickel carbonyls can deactivate the copper-based catalyst for methanol synthesis.

羰基镍是铜基合成甲醇催化剂的毒物。

5.Condensation of aldehydes or ketones with alcohols is one of the most common methods for protecting carbonyls.

醛、酮与醇的缩合反应是羰基保护的通用方法。

6.The number of aldehydes compounds was second, accounting for 18.37 percent, Carbonyls play a key role during forming the characteristic aroma in the chicken broth.

其次是羰基类化合物醛类，占18.37%，这类化合物被认为对鸡汤的特征风味形成起重要作用。

7.Various factors relating to the metal carbonyls and to the o atom transfer reagents that effect the rates of CO substitution are discussed.

从金属羰基化合物和氧原子转移试剂两个方面讨论了影响CO取代反应速率的各种因素。

8.The number of aldehydes compounds was second, accounting for 18.37 percent, Carbonyls play a key role during forming the characteristic aroma in the chicken broth.

其次是羰基类化合物醛类，占18.37%，这类化合物被认为对鸡汤的特征风味形成起重要作用。

9.We can identify carbonyls using specific reagents that react with them.

我们可以使用与羰基反应的特定试剂来识别它们。

10.In organic chemistry, carbonyls play a crucial role in various reactions.

在有机化学中，羰基在各种反应中起着至关重要的作用。

11.The presence of carbonyls in the compound indicates a potential for reactivity.

化合物中存在羰基表明其具有反应性潜力。

12.The analysis showed that the sample contained several types of carbonyls.

分析显示样品中含有几种类型的羰基。

13.Many flavors and fragrances are derived from carbonyls found in natural sources.

许多香味和气味源自天然来源中的羰基。

作文

Carbonyls are a class of organic compounds characterized by the presence of a carbonyl group, which consists of a carbon atom double-bonded to an oxygen atom. This functional group is represented as C=O, and it plays a crucial role in various chemical reactions and biological processes. The significance of carbonyls (羰基化合物) cannot be overstated, as they are fundamental components in the synthesis of many important molecules. For instance, aldehydes and ketones are two major types of carbonyls (羰基化合物), each with distinct properties and applications.Aldehydes contain the carbonyl group at the end of a carbon chain, while ketones have it within the chain. This structural difference leads to variations in their reactivity and physical properties. Aldehydes are generally more reactive than ketones due to the presence of a hydrogen atom attached to the carbonyl carbon, making them susceptible to oxidation. On the other hand, ketones are typically more stable but can still undergo various reactions, such as nucleophilic addition and condensation.The versatility of carbonyls (羰基化合物) extends beyond simple organic chemistry. In biochemistry, for example, carbonyls (羰基化合物) are involved in the metabolism of carbohydrates, lipids, and proteins. They serve as intermediates in metabolic pathways and play a key role in the formation of essential biomolecules like amino acids and fatty acids. Furthermore, the reactivity of carbonyls (羰基化合物) allows them to participate in enzyme-catalyzed reactions, which are vital for sustaining life.In industry, carbonyls (羰基化合物) are used in the production of various chemicals, including pharmaceuticals, agrochemicals, and polymers. For example, formaldehyde, an important aldehyde, is widely used in the manufacture of resins and as a preservative. Similarly, acetone, a common ketone, is utilized as a solvent and in the production of plastics and fibers. The ability to manipulate carbonyls (羰基化合物) through chemical reactions makes them valuable building blocks in synthetic chemistry.Despite their usefulness, carbonyls (羰基化合物) can also pose risks. Some carbonyls (羰基化合物), like formaldehyde, are known to be toxic and potentially carcinogenic. Therefore, understanding the properties and behaviors of carbonyls (羰基化合物) is essential for ensuring safe handling and use in both laboratory and industrial settings.In conclusion, carbonyls (羰基化合物) are a vital class of compounds in organic chemistry, biochemistry, and industrial applications. Their unique structure and reactivity allow them to participate in a wide range of chemical reactions, making them indispensable in various fields. As research continues to explore the potential of carbonyls (羰基化合物), their importance in science and technology will only continue to grow, highlighting the need for a deeper understanding of these fascinating compounds.