methoxyl

简明释义

英[mɪˈθɒksɪl]美[mɪˈθɒksɪl]

n. 甲氧基；甲氧

英英释义

单词用法

同义词

反义词

例句

1.The invention discloses a method for preparing 3-methoxyl-4-tert-butyl toluene.

本发明公开了一种制备3 -甲氧基- 4 -叔丁基甲苯的方法。

2.The pectin in most plants is the high methoxyl pectin, so the low-methoxy pectin has to be prepared by reducing the degree of esterification.

自然界大多数植物中的果胶为高甲氧基果胶，需通过降低其酯化度制备低甲氧基果胶。

3.The relative stereochemistry of the 1, 10-double bond and that of the methoxyl, methyl, and acetoxy groups were determined by NOESY experiments and analyses of the coupling constants.

通过NOESY实验以及偶合常数的分析，确定了其结构中1,10位双键和甲氧基、乙酰氧基、甲基等基团的相对构型。

4.Objective: To improve the synthesis method of the intermediate of Omeprazole, 2-nitro-4-methoxyl-aminobenzene.

前言：目的：改进奥美拉唑中间体2 -硝基- 4 -甲氧基-氨基苯的合成方法。

5.Index on gel time and gel strength - the effect of single-factor test indicated that AGAR, gelatin, sodium alginate and low methoxyl pectin could gel yoghurt effectively.

以胶凝时间和凝胶强度为指标，通过单因素实验确定添加适当用量的琼脂、明胶、海藻酸钠和低甲氧基果胶可使酸乳胶凝。

6.In this studies, the gelling characteristics and effect factors of low methoxyl pectin (LMP) were researched with the X-T21 Texture Analyser.

以X - T 21型质构仪为主要研究设备，重点研究了低酯果胶凝胶性能和相关影响因素。

7.The contents of methoxyl and carboxyl groups have good linear relationships between the contents...

木质素的甲氧基、羧基含量与总氮、有效氮含量均呈较好的线性关系。

8.The bamboo lignin is rich in syringyl units, which is indicated by a high methoxyl content and respective bands in the IR spectrum.

从甲氧基含量高以及红外光谱中各吸收峰可知在竹材木素中富含丁香基。

9.Rapid determination model of the methoxyl group content in plant fibrous material was established by the integration of near-infrared spectroscopy and partial least squares (PLS).

采取偏最小二乘法(PLS)建立起近红外光谱法快速测量植物纤维原料的甲氧基含量的模型。

10.The presence of a methoxyl group in the molecule alters its reactivity and stability.

分子中存在的甲氧基基团改变了其反应性和稳定性。

11.The compound contains a methoxyl group that enhances its solubility in organic solvents.

该化合物含有一个甲氧基基团，增强了其在有机溶剂中的溶解性。

12.The methoxyl group is often used to modify the surface properties of materials.

通常使用甲氧基基团来修改材料的表面性质。

13.Researchers are investigating the effects of methoxyl substitution on the properties of polymers.

研究人员正在调查甲氧基取代对聚合物性质的影响。

14.In the synthesis of pharmaceuticals, the introduction of a methoxyl group can significantly improve biological activity.

在药物合成中，引入一个甲氧基基团可以显著提高生物活性。

作文

The study of organic chemistry is a fascinating journey into the world of molecules and their interactions. One important functional group that often comes up in this field is the methoxyl group. This group, characterized by the presence of a -OCH3 structure, plays a crucial role in various chemical reactions and the synthesis of complex organic compounds. Understanding the properties and applications of the methoxyl group can greatly enhance our knowledge of organic chemistry. In this essay, we will explore the significance of the methoxyl group, its role in different chemical processes, and its applications in real-world scenarios.First and foremost, the methoxyl group is known for its ability to influence the reactivity of organic compounds. When attached to a carbon skeleton, the methoxyl group can alter the physical and chemical properties of the molecule. For example, compounds containing the methoxyl group tend to have lower boiling points compared to their non-methoxylated counterparts. This is due to the presence of the oxygen atom, which can engage in dipole-dipole interactions with other molecules, thus affecting the overall intermolecular forces at play.In addition to its effects on physical properties, the methoxyl group also plays a pivotal role in chemical reactions, particularly in nucleophilic substitution reactions. The presence of the methoxyl group can make certain carbon atoms more susceptible to attack by nucleophiles, leading to the formation of new bonds and the creation of diverse chemical structures. This reactivity is particularly useful in the synthesis of pharmaceuticals and agrochemicals, where the precise manipulation of molecular structures is essential.Moreover, the methoxyl group is commonly found in many natural products, including essential oils and various plant extracts. For instance, compounds like eugenol, which contains a methoxyl group, are known for their aromatic properties and are widely used in the fragrance industry. The presence of the methoxyl group in these natural compounds not only enhances their scent but also contributes to their biological activities, making them valuable in both culinary and medicinal applications.Furthermore, the incorporation of the methoxyl group in synthetic organic chemistry has led to the development of numerous drugs and therapeutic agents. Many anti-inflammatory and analgesic medications contain methoxyl moieties, which help improve their efficacy and bioavailability. For example, the popular pain reliever paracetamol (acetaminophen) features a methoxyl group that contributes to its pharmacological properties. This highlights the importance of understanding the methoxyl group for drug design and development.In conclusion, the methoxyl group is a fundamental component in organic chemistry, influencing the properties and reactivity of various compounds. Its presence can significantly impact the synthesis of new materials and the development of pharmaceuticals. As we continue to explore the vast world of organic chemistry, the methoxyl group will undoubtedly remain a key focus for researchers and chemists alike. By deepening our understanding of this functional group, we can unlock new possibilities for innovation and discovery in the field of chemistry.

有机化学的研究是进入分子及其相互作用世界的迷人旅程。一个在这个领域中经常出现的重要官能团是甲氧基（methoxyl）基团。这个基团以-OCH3结构为特征，在各种化学反应和复杂有机化合物的合成中发挥着至关重要的作用。理解甲氧基基团的性质和应用可以极大地增强我们对有机化学的知识。在这篇文章中，我们将探讨甲氧基基团的重要性、它在不同化学过程中的作用以及它在现实世界中的应用。首先，甲氧基基团以其影响有机化合物反应性的能力而闻名。当附着在碳骨架上时，甲氧基基团可以改变分子的物理和化学性质。例如，含有甲氧基基团的化合物往往具有比其非甲氧基化同类物质更低的沸点。这是由于氧原子的存在，它可以与其他分子发生偶极-偶极相互作用，从而影响整体分子间力。除了对物理性质的影响外，甲氧基基团在化学反应中也起着关键作用，特别是在亲核取代反应中。甲氧基基团的存在可以使某些碳原子更容易受到亲核试剂的攻击，从而形成新键并创建多样的化学结构。这种反应性在制药和农用化学品的合成中尤为有用，因为精确操控分子结构是至关重要的。此外，甲氧基基团通常存在于许多天然产物中，包括精油和各种植物提取物。例如，含有甲氧基基团的化合物，如丁香酚，以其芳香特性而闻名，被广泛用于香料工业。这些天然化合物中甲氧基基团的存在不仅增强了它们的香气，还促进了它们的生物活性，使它们在烹饪和药用应用中变得有价值。此外，甲氧基基团在合成有机化学中的应用导致了众多药物和治疗剂的发展。许多抗炎和镇痛药物都含有甲氧基部分，这有助于改善它们的疗效和生物利用度。例如，流行的止痛药对乙酰氨基酚（扑热息痛）含有一个甲氧基基团，这对其药理特性有贡献。这突显了理解甲氧基基团对药物设计和开发的重要性。总之，甲氧基基团是有机化学中的一个基本组成部分，影响着各种化合物的性质和反应性。它的存在可以显著影响新材料的合成和药物的开发。随着我们继续探索广阔的有机化学世界，甲氧基基团无疑将继续成为研究人员和化学家的重点。通过加深对这一官能团的理解，我们可以为化学领域的创新和发现开启新的可能性。