alkyne

简明释义

英[ˈælkaɪn]美[ˈælkaɪn]

n. 炔属烃

英英释义

单词用法

同义词

反义词

例句

1.This part mainly focused on the synthesis of propargylic alcohols in many methods including metal acetylides, terminal alkyne derivatives and the direct alkynyl C-H activation.

通过金属炔化物、末端炔烃衍生物和炔基碳氢活化等方法来合成炔丙醇。

2.The nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.

亲核试剂包括烯烃、炔烃、醇、酸、胺、水等。

3.Introduction to the Alkyne Triple Bond.

炔烃三键介绍。

4.This type of reaction has signicant advantages, the alkyne proceeds the coupling reaction with the halogen atom as the leaving group.

卤原子作为炔烃三键活化基团和定位基，炔烃三键发生亲电加成反应；

5.Abstract : this article reviews recent progress in nucleophilic reactions of the - carbon in vinylidene ruthenium complexes. the nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.

文摘：综述了近几年钌亚乙烯基络合物中间体-碳的亲核反应。亲核试剂包括烯烃、炔烃、醇、酸、胺、水等。

6.The computation indicated that the stable silicyl alkene is produced by the addition reaction of silicon alkyne and hydro-gen.

计算表明，硅炔与氢分子加成反应可生成稳定的甲硅烷基硅烯。

7.This paper reports the route of synthesis multisubstituted alkenes by addition reaction of alkyne zirconalkylation with zirconocene complexes.

本文报道了锆烯络合物对炔烃的烷基化加成，合成多取代烯烃，产率较高。

8.Acetylene (ethyne) Simplest alkyne, C2H2. A colourless, flammable, explosive gas, it is used as a fuel in welding and cutting metals and as a raw material for many organic compounds and plastics.

乙炔：最简单的炔(C2H2)，无色可燃气体，广泛用作金属焰焊接和切割的燃料，也是合成许多有机化学品和塑料的原料。

9.Abstract : this article reviews recent progress in nucleophilic reactions of the - carbon in vinylidene ruthenium complexes. the nucleophiles include alkene, alkyne, alcohol, acid, amine, water, etc.

文摘：综述了近几年钌亚乙烯基络合物中间体-碳的亲核反应。亲核试剂包括烯烃、炔烃、醇、酸、胺、水等。

10.A new test method, in which alkyne impurity content in 1, 3-butadiene is determined by a capillary gas chromatograph, was introduced.

介绍了一种毛细管气相色谱法测定1,3 -丁二烯中炔烃杂质含量的新试验方法。

11.An alkyne is a type of hydrocarbon that contains at least one triple bond between carbon atoms.

一种炔烃是指至少包含一个碳原子之间三重键的烃类化合物。

12.In organic chemistry, alkynes are important for synthesizing various compounds.

在有机化学中，炔烃对于合成各种化合物非常重要。

13.The simplest alkyne, ethyne, is commonly known as acetylene.

最简单的炔烃，乙炔，通常被称为乙炔气。

14.To create a reaction, we need to add a reagent to the alkyne solution.

为了产生反应，我们需要向炔烃溶液中添加试剂。

15.When an alkyne undergoes hydrogenation, it can become an alkene.

当炔烃经历氢化反应时，它可以转变为烯烃。

作文

Alkynes are a fascinating class of hydrocarbons that play a crucial role in organic chemistry. They are defined as unsaturated hydrocarbons that contain at least one carbon-carbon triple bond. This unique feature gives alkyne（炔烃） compounds their distinct properties and reactivity. In this essay, we will explore the structure, properties, and applications of alkynes（炔烃） in various fields, highlighting their importance in both industrial and academic settings.The structure of alkynes（炔烃） is characterized by the presence of a triple bond between two carbon atoms. This triple bond consists of one sigma bond and two pi bonds, making it stronger and shorter than a double or single bond. The general formula for alkynes（炔烃） is CnH2n-2, where n represents the number of carbon atoms in the molecule. For example, the simplest alkyne（炔烃） is ethyne (C2H2), commonly known as acetylene. As we move up the series, we find propyne (C3H4) and butyne (C4H6), each exhibiting the unique properties associated with alkynes（炔烃）.One of the most notable properties of alkynes（炔烃） is their high reactivity compared to alkanes and alkenes. This increased reactivity can be attributed to the presence of the triple bond, which is more electron-rich and susceptible to attack by nucleophiles. This characteristic makes alkynes（炔烃） valuable intermediates in organic synthesis. For instance, they can undergo a variety of reactions such as hydrogenation, halogenation, and hydroboration, allowing chemists to create a wide range of products from these compounds.In addition to their chemical reactivity, alkynes（炔烃） also have significant applications in the industrial sector. One of the most prominent uses of alkynes（炔烃） is in the production of plastics and synthetic fibers. Acetylene, for example, is used as a building block for the synthesis of polyvinyl chloride (PVC), a widely used plastic. Furthermore, alkynes（炔烃） serve as precursors for pharmaceuticals and agrochemicals, demonstrating their versatility and importance in modern chemistry.Moreover, alkynes（炔烃） are also employed in the field of materials science. Their unique bonding structure allows for the development of advanced materials with specific properties. Researchers have been exploring the use of alkynes（炔烃） in the creation of nanomaterials and polymers with enhanced mechanical and thermal properties. This research opens new avenues for innovation in various industries, including electronics and aerospace.In conclusion, alkynes（炔烃） are an essential class of hydrocarbons that offer a wealth of opportunities in both academic research and industrial applications. Their unique structure, characterized by a carbon-carbon triple bond, results in distinct properties that make them highly reactive and versatile. From their role in organic synthesis to their applications in plastics and advanced materials, alkynes（炔烃） continue to be a subject of significant interest and importance in the field of chemistry. Understanding and harnessing the potential of alkynes（炔烃） will undoubtedly lead to further advancements and innovations in science and technology.