methoxide

简明释义

英[meθˈɒksaɪd]美[meθˈɑːksaɪd]

n. [有化] 甲醇盐；[有化] 甲氧基金属

英英释义

单词用法

同义词

反义词

例句

1.Li2O-B2O3 composite gels were successfully prepared from tri-n-butyl borate and lithium methoxide dissolved in methanol and tetrahydrofuran via sol-gel technique.

以硼酸三正丁酯、甲醇锂为主要原料，甲醇和四氢呋喃为溶剂，利用溶胶-凝胶法通过优化工艺制备了掺锂硼酸盐凝胶。

2.An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.

介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。

3.Using magnesium methoxide as a heterogeneous catalyst to produce biodiesel was put forward, and the corresponding process for catalyst disposal was researched.

开发了以甲醇镁为非均相催化剂制备生物柴油的工艺流程，研究了相应的催化剂后处理工艺。

4.An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.

介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。

5.The slurry was composed of the required amounts of sodium methoxide solution, CuCr catalyst and emulsifier OP10, as well as the balanced liquid xylene medium.

鼓泡浆液反应器使用的浆液由铜铬催化剂、甲醇钠溶液、乳化剂OP - 10和液相介质二甲苯组成。

6.Compared with the activity of sodium methoxide, sodium ethoxide, sodium isopropyl, sodium tert-butoxide, the best base catalyst was sodium tert-butoxide.

比较甲醇钠、乙醇钠、异丙醇钠和叔丁醇钠催化活性，叔丁醇钠为最佳的催化剂。

7.Sodium methoxide used as catalyst for the synthesis of methyl formate by carbonylation of methanol was studied, and effect of three kinds of promoter was investigated.

在间歇釜式反应器中，进行一氧化碳与甲醇羰基化合成甲酸甲酯的合成，考察甲醇钠碱性催化体系对反应的影响。

8.Organic aluminium can choose aluminium methoxide which has low cost and is easy to synthetize; inorganic salt can be served as basic sintetics, thus greatly lowering raw material cost;

有机铝可选择价格低、易合成的甲醇铝，而无机盐作为基本合成原料，可大大降低了原料成本；

9.A new solid base catalyst of calcium methoxide was made with calcium carbonate as the starting material.

以碳酸钙为基础材料，制成高效酯交换催化剂甲醇钙。

10.Dimethyl carbonate is synthesized directly from carbon dioxide and methanol in the presence of magnesium methoxide.

报道一种在甲醇镁作用下，由二氧化碳及甲醇直接合成碳酸二甲酯的反应过程。

11.To prepare the reagent, we dissolved sodium in methanol to generate methoxide.

为了制备试剂，我们将钠溶解在甲醇中以生成甲氧基。

12.In organic synthesis, methoxide is often used as a strong base.

在有机合成中，甲氧基常被用作强碱。

13.The reaction was initiated by adding sodium methoxide to the solution.

通过向溶液中添加钠甲氧基来启动反应。

14.The methoxide ion acts as a nucleophile in many substitution reactions.

甲氧基离子在许多取代反应中充当亲核试剂。

15.The formation of esters can be facilitated by using methoxide as a catalyst.

使用甲氧基作为催化剂可以促进酯的形成。

作文

In the field of organic chemistry, various compounds play crucial roles in different reactions and processes. One such compound is methoxide, which is the anion derived from methanol. It is represented chemically as CH3O− and serves as a strong nucleophile. Understanding methoxide is essential for anyone delving into organic synthesis or studying reaction mechanisms. This compound is often used in deprotonation reactions, where it can remove a proton from alcohols, thereby forming alkoxides. The significance of methoxide extends beyond its chemical properties; it also has practical applications in various industries, including pharmaceuticals and materials science.The reactivity of methoxide makes it a valuable reagent in organic synthesis. For instance, when methoxide reacts with alkyl halides, it can facilitate the formation of ethers through an SN2 mechanism. This process is particularly important in creating complex molecules that are foundational in drug development. Moreover, methoxide can also be utilized in the synthesis of biodiesel, where it acts as a catalyst in transesterification reactions. This highlights the compound's versatility and importance in both academic research and industrial applications.Furthermore, understanding the behavior of methoxide in different solvents is vital for chemists. In polar protic solvents, methoxide can exhibit decreased nucleophilicity due to solvation effects. Conversely, in aprotic solvents, its nucleophilicity is significantly enhanced, making it more reactive. This knowledge allows chemists to manipulate reaction conditions to achieve desired outcomes, showcasing the importance of methoxide in experimental design.In addition to its role in synthesis, methoxide is also significant in the study of reaction mechanisms. By observing how methoxide participates in various reactions, researchers can gain insights into fundamental principles of chemistry, such as nucleophilicity and reaction kinetics. This understanding not only aids in the development of new synthetic methods but also enriches the broader field of chemical education.Moreover, safety considerations when handling methoxide cannot be overlooked. As a strong base, it can cause severe burns and must be handled with care. Proper laboratory practices, including the use of personal protective equipment (PPE) and fume hoods, are essential when working with this compound. Educating students and professionals about the hazards associated with methoxide ensures a safer working environment and promotes responsible chemical practices.In conclusion, methoxide is a fundamental compound in organic chemistry with wide-ranging applications in synthesis, catalysis, and educational contexts. Its unique properties and reactivity make it an invaluable tool for chemists. By understanding methoxide, one can appreciate the intricate dance of molecules that underpins the world of chemistry. As we continue to explore and innovate within this field, the significance of methoxide will undoubtedly remain prominent, driving advancements in both research and industry.

在有机化学领域，各种化合物在不同的反应和过程中发挥着至关重要的作用。其中一种化合物是甲氧基，它是由甲醇衍生而来的阴离子。其化学式为CH3O−，并作为强亲核试剂。理解甲氧基对于任何深入研究有机合成或反应机制的人来说都是至关重要的。这种化合物通常用于去质子化反应中，它可以从醇中去除一个质子，从而形成烷氧基。甲氧基的重要性不仅体现在其化学性质上；它在制药和材料科学等多个行业也具有实际应用。甲氧基的反应性使其成为有机合成中一种宝贵的试剂。例如，当甲氧基与卤代烷反应时，它可以通过SN2机制促进醚的形成。这个过程在创建复杂分子方面尤为重要，而这些分子是药物开发的基础。此外，甲氧基还可以用于生物柴油的合成，其中它作为转酯化反应中的催化剂。这突显了该化合物的多功能性及其在学术研究和工业应用中的重要性。此外，理解甲氧基在不同溶剂中的行为对于化学家来说至关重要。在极性质子溶剂中，由于溶剂化效应，甲氧基的亲核性可能会降低。相反，在非质子溶剂中，其亲核性显著增强，使其更具反应性。这一知识使化学家能够操控反应条件以实现所需结果，展示了甲氧基在实验设计中的重要性。除了在合成中的作用外，甲氧基在反应机制的研究中也具有重要意义。通过观察甲氧基如何参与各种反应，研究人员可以获得有关化学基本原理的见解，例如亲核性和反应动力学。这种理解不仅有助于开发新的合成方法，也丰富了化学教育的更广泛领域。此外，处理甲氧基时的安全考虑也不能被忽视。作为一种强碱，它可能导致严重烧伤，因此必须小心处理。在使用这种化合物时，遵循适当的实验室操作，包括使用个人防护装备（PPE）和排风罩，是至关重要的。教育学生和专业人士有关甲氧基的危害，确保更安全的工作环境，并促进负责任的化学实践。总之，甲氧基是有机化学中一种基础化合物，在合成、催化和教育等方面具有广泛的应用。其独特的性质和反应性使其成为化学家们不可或缺的工具。通过理解甲氧基，人们可以欣赏到支撑化学世界的分子之间复杂的舞蹈。随着我们继续探索和创新这一领域，甲氧基的重要性无疑将继续突出，推动研究和工业的进步。