borohydride

简明释义

英[/ˈbɔːroʊhaɪdraɪd/]美[/ˈbɔːroʊhaɪdraɪd/]

n. 氢硼化物

英英释义

单词用法

同义词

反义词

例句

1.The preparation process for L-2-amino propanol (AP) by reduction with potassium borohydride (PB) was improved.

对硼氢化钾还原法制取l- 2 -氨基丙醇工艺进行了改进。

2.Sodium borohydride and its modified compounds are important reductants capable of reducing a great number of organic functional groups.

硼氢化钠及修饰的硼氢化钠是一类重要的还原剂，能还原多种有机官能团。

3.The Synthesis technology and application of sodium borohydride at home and abroad have been described in this paper.

论述了国内外硼氢化钠的合成工艺及该产品的应用。

4.Methods 1-Methyl-1,2,3,4-tetrahydroisoquinoline was synthesized from phenethylamine through three steps:acetylation with acetyl chloride, cyclization with PPA and reduction with potassium borohydride.

方法以苯乙胺为原料，经酰化反应得乙酰苯乙胺，在多聚磷酸的作用下环合得1-甲基-3，4-二氢异喹啉，经硼氢化钠还原得1-甲基-1，2，3，4-四氢异喹啉。

5.The toxic hydrogen selenide gas was reduced, while the utilization of sodium borohydride was over a lot when the PEG-400 instead of ethanol.

相对于乙醇、水等作为介质合成二硒醚，以PEG - 400为介质减少了剧毒气体硒化氢的排放，同时硼氢化钠的利用率有所提高。

6.Medis's fuel cell, however, is based on sodium borohydride, which is simpler and cheaper.

而Medis的燃料电池则是基于硼氢化钠，这要简单和便宜得多。

7.The results show that poplar APMP pulp treated by sodium borohydride could be brightened and stabilized significantly.

结果表明：硼氢化钠处理杨木漂白化机浆不但能够显著改善其白度稳定性而且对纸浆具有漂白作用。

8.The reaction of aldehydes with borohydride results in the formation of primary alcohols.

醛与borohydride反应会生成初级醇。

9.Sodium borohydride is commonly used as a reducing agent in organic chemistry.

氢化钠borohydride常用于有机化学中的还原剂。

10.Lithium borohydride is often used in the reduction of esters and carboxylic acids.

锂borohydride通常用于酯和羧酸的还原反应中。

11.In the preparation of pharmaceuticals, borohydride plays a crucial role in synthesizing active compounds.

在制药过程中，borohydride在合成活性化合物中发挥着重要作用。

12.The borohydride method allows for the efficient reduction of ketones to alcohols.

borohydride方法可以有效地将酮还原为醇。

作文

In the realm of chemistry, the term borohydride refers to a class of compounds that are crucial for various chemical reactions and processes. Specifically, borohydrides are salts or esters of borane, which contain one or more hydride ions (H-) bonded to boron. The most common example of this class is sodium borohydride (NaBH4), which is widely used in organic synthesis and reduction reactions. Understanding the properties and applications of borohydride compounds can provide valuable insights into their significance in both industrial and laboratory settings.One of the primary characteristics of borohydrides is their ability to act as reducing agents. In organic chemistry, reduction is a critical reaction that involves the gain of electrons or hydrogen by a molecule. Sodium borohydride, for instance, is often employed to reduce carbonyl compounds, such as aldehydes and ketones, into their corresponding alcohols. This transformation is vital in the synthesis of various pharmaceuticals and fine chemicals, demonstrating the practical importance of borohydride in the production of essential materials.Moreover, borohydrides are not limited to just organic synthesis; they also play a significant role in the field of materials science. For instance, researchers have explored the use of borohydride compounds in the development of hydrogen storage systems. Hydrogen is considered a clean fuel alternative, and the ability to store it efficiently is crucial for the advancement of hydrogen fuel cell technologies. Some studies indicate that borohydrides can release hydrogen gas upon hydrolysis, making them a potential candidate for safe and effective hydrogen storage solutions.In addition to their chemical properties, borohydrides exhibit interesting physical characteristics. Many borohydride compounds are solid at room temperature and can be easily handled in powdered form. Their stability under various conditions is another aspect that makes them attractive for industrial applications. However, it is essential to note that while borohydrides are generally stable, they can react violently with water or acids, releasing hydrogen gas and posing safety risks if not managed properly.Another fascinating aspect of borohydrides is their versatility. Different metal borohydrides can be synthesized by replacing the sodium ion in sodium borohydride with other metal ions, such as lithium, potassium, or calcium. Each of these metal borohydrides can exhibit unique reactivity and solubility properties, allowing chemists to choose the most suitable borohydride for a specific application. This adaptability is a testament to the importance of borohydrides in advancing chemical research and industrial practices.In conclusion, the study of borohydrides opens up numerous avenues for exploration in the fields of chemistry and materials science. Their role as reducing agents, their potential in hydrogen storage, and their diverse chemical behavior highlight their significance in both academic research and practical applications. By understanding the properties and uses of borohydride compounds, we can appreciate their contributions to modern chemistry and the ongoing quest for innovative solutions in various industries.

在化学领域，术语borohydride指的是一类对各种化学反应和过程至关重要的化合物。具体来说，borohydrides是硼烷的盐或酯，含有一个或多个氢化物离子（H-）与硼结合。这个类别中最常见的例子是氢化钠borohydride（NaBH4），它广泛用于有机合成和还原反应。理解borohydride化合物的性质和应用可以为我们提供关于它们在工业和实验室环境中重要性的宝贵见解。borohydrides的主要特征之一是它们作为还原剂的能力。在有机化学中，还原是一种关键反应，涉及分子获得电子或氢。以氢化钠borohydride为例，它常用于将羰基化合物，如醛和酮，减少为相应的醇。这一转化在各种药物和精细化学品的合成中至关重要，展示了borohydride在生产基本材料中的实际重要性。此外，borohydrides并不限于有机合成；它们在材料科学领域也扮演着重要角色。例如，研究人员探索了borohydride化合物在氢存储系统开发中的应用。氢被视为一种清洁燃料替代品，有效存储氢气的能力对于氢燃料电池技术的进步至关重要。一些研究表明，borohydrides在水解时可以释放氢气，使其成为安全有效的氢存储解决方案的潜在候选者。除了化学性质，borohydrides还表现出有趣的物理特性。许多borohydride化合物在室温下为固体，可以方便地以粉末形式处理。它们在各种条件下的稳定性是另一个使其在工业应用中吸引人的方面。然而，值得注意的是，尽管borohydrides通常是稳定的，但它们可能会与水或酸发生剧烈反应，释放氢气，如果管理不当，可能会带来安全风险。borohydrides的另一个迷人之处在于其多功能性。通过用其他金属离子替换氢化钠中的钠离子，可以合成不同的金属borohydrides，例如锂、钾或钙。这些金属borohydrides每种都可以表现出独特的反应性和溶解性特性，使化学家能够选择最适合特定应用的borohydride。这种适应性证明了borohydrides在推动化学研究和工业实践中的重要性。总之，研究borohydrides为化学和材料科学领域的探索打开了众多途径。它们作为还原剂的作用、在氢存储中的潜力以及多样的化学行为突显了它们在学术研究和实际应用中的重要性。通过理解borohydride化合物的性质和用途，我们可以欣赏它们对现代化学的贡献以及在各个行业中寻求创新解决方案的持续努力。