What is the chemical structure of Sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate

The name of this compound is sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate. Its chemical structure can be inferred from its naming.

First look at the benzoic acid part, benzoic acid is a benzene ring-linked carboxyl group (\ (C_6H_5COOH\)). There are two substituents on the benzene ring of benzoic acid in this compound, one is 2-chloro-4- (trifluoromethyl) phenoxy and the other is nitro.

For 2-chloro-4- (trifluoromethyl) phenoxy, it is a benzene ring, the No. 2 carbon position is connected to the chlorine atom (\ (Cl\)), and the No. 4 carbon position is connected to the trifluoromethyl (\ (CF_3\)). This benzene ring is then connected to the benzoic acid benzene ring through the oxygen atom to form an ether bond structure. Nitro (\ (NO_2\)) is connected to the benzoic acid benzene ring at the relative position of the 2-chloro-4- (trifluoromethyl) phenoxy group.

Because of the word "sodium" in the name of the compound, it can be seen that the hydrogen atom on the carboxyl group (\ (COOH\)) is replaced by the sodium ion (\ (Na ^ +\)) to form the sodium carboxylate salt structure.

In this way, the structure of this compound is clear, and the specific connection relationship is formed by benzene ring, 2-chloro-4- (trifluoromethyl) phenoxy group, nitro group, and sodium carboxylate.

What are the main uses of Sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate

Sodium 5 - [2 - chloro - 4 - (trifluoromethyl) phenoxy] - 2 - nitrobenzoate (5 - [2 - chloro - 4 - (trifluoromethyl) phenoxy] - 2 - sodium nitrobenzoate) has a wide range of uses.

First, in the field of agriculture, it is often used as a high-efficiency herbicide. It can effectively inhibit weed growth. By precisely acting on the specific physiological process of weeds, it interferes with weed cell division and metabolism, causing weed growth inhibition and even death, and is relatively safe for crops. It can ensure the robust growth of farmland crops and improve crop yield and quality.

Second, in the field of chemical synthesis, it is a key intermediate. With its unique molecular structure, it can participate in many organic synthesis reactions, and through ingenious chemical transformation, it can derive a variety of fine chemicals with different functions, such as drugs with special structures, dyes with excellent performance and polymer materials with unique functions, etc., which greatly expands the variety and application field of chemical products.

Third, at the level of scientific research, it is an important experimental reagent. Researchers use it to explore the mechanism of organic reactions. Through in-depth study of the conditions, processes and products involved in the reaction, they can gain insight into the essence of chemical reactions, provide key experimental basis for the development of organic chemistry theory, and promote the continuous progress of chemistry.

What are the physical properties of Sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate

The 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate of sodium is one of the organic compounds. Its physical properties are quite elusive.

Looking at its properties, under normal temperature and pressure, it may be in a solid state, and most of these organic esters are in a solid state. Its color may be white to light yellow powder. Due to the molecular structure and chemical bond properties of the compound, it has a specific performance on light dispersion and absorption.

When it comes to the melting point, this substance must have a specific temperature. When this temperature is reached, the solid substance will gradually melt into a liquid state. The value of this melting point is closely related to the intermolecular force. There are halogen elements such as chlorine and fluorine in the molecule, as well as nitro and phenoxy groups, which make the intermolecular force complex. The electronegativity of the halogen atom is large, and the strong electron-absorbing property of the nitro group enhances the intermolecular interaction, resulting in its melting point or a higher range. However, the exact value still needs to be accurately determined by experiments.

As for the solubility, the compound may have different behaviors in organic solvents. Because the molecule contains groups such as lipophilic benzene ring and hydrophobic trifluoromethyl group, it may have certain solubility in non-polar or weakly polar organic solvents such as toluene and dichloromethane. For solvents with strong polarity, such as water, due to the dominant hydrophobicity of the molecule as a whole, the solubility must be poor, or only slightly soluble or even insoluble.

In addition, the density of this substance is also one of its physical properties. According to its molecular composition and structure, its density may be larger than that of water, and the heavy atoms such as chlorine and fluorine in its molecules account for a certain proportion, which increases the mass per unit volume.

In summary, the physical properties of sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate, such as its properties, color, melting point, solubility, and density, are determined by its unique molecular structure, and the exact value needs to be carefully investigated experimentally.

What is the preparation method of Sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate

The method for preparing sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate is described in detail below.

First take 5-hydroxy-2-nitrobenzoic acid and place it in an appropriate amount of organic solvents, such as dichloromethane, N, N-dimethylformamide, etc., to make a uniform solution. The organic solvent needs to be stable in nature, do not chemically react with the reactants and products, and have good solubility to the reactants. < Br >
Second dose 2-chloro-4- (trifluoromethyl) chlorobenzene into the above solution, and add an appropriate amount of alkali, such as potassium carbonate, sodium carbonate, etc. The effect of alkali is to neutralize the acid generated by the reaction, so that the reaction equilibrium shifts to the right, and the reaction proceeds. In this process, stir the mixture to make full contact with the reactants to speed up the reaction rate. The temperature also needs to be strictly controlled, usually between 50 and 80 ° C. This temperature range allows the reaction to occur at a suitable rate and avoids excessive side reactions. Maintain this temperature and stir state, and react for several hours. The specific time depends on the monitoring of the reaction process. The reaction progress can be observed in real time by means of thin-layer chromatography. When the reactants are exhausted or the amount of product generated reaches the expected level, the reaction can be stopped.

After the reaction is completed, pour the reaction mixture into an appropriate amount of water and separate the product by extraction. Extract with an organic solvent several times, combine the organic phases, and then dry with a desiccant such as anhydrous sodium sulfate to remove the moisture. Then, the organic solvent is removed by reduced pressure distillation to obtain a crude product.

The crude product is then purified, often by column chromatography or recrystallization. The column chromatography method requires the selection of suitable stationary and mobile phases, and the separation is achieved by the difference in the distribution coefficients between the stationary and mobile phases of different substances. The recrystallization method selects a suitable solvent, so that the crude product is dissolved in the hot solvent. After cooling, the product crystallizes and precipitates, and the impurities remain in the mother liquor, so as to achieve the purpose of purification.

Finally, the purified product is taken and treated with an appropriate amount of sodium hydroxide solution to form a salt, resulting in 5 - [2-chloro-4 - (trifluoromethyl) phenoxy] -2 - sodium nitrobenzoate. After this series of steps, a relatively pure target product can be obtained.

Sodium 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate

If you use sodium 5 - [2-chloro-4 - (trifluoromethyl) phenoxy] -2-nitrobenzoate, you should pay attention to all things when using it.

The first rule, you must read its manual carefully. This is just like marching, you need to know the art of war, and know the details of its nature, use, and dosage, so as to avoid mistakes. If you use medicine to treat diseases, and you don't know the pharmacological dosage, how can you cure the disease? Use it carelessly, or cause bad results.

Second, store it properly. This medicine should be stored in a dry, cool and ventilated place, protected from heat, moisture, and light. If stored in an inappropriate place, the pearl is placed in a filthy place, and its properties may change, and the efficacy of the medicine may decrease. For example, grain grains, if stored in a damp place, will cause mildew.

Furthermore, when using it, follow the operating procedures strictly. In industrial preparation, weighing, mixing, and reaction steps must be accurate. If there is a slight difference, the foundation of the chamber will be unstable, and all work or waste. And if in the laboratory, the amount of access, reaction temperature, and time control are all about success or failure.

Repeat, the matter of protection should not be ignored. When using this medicine, it is advisable to wear protective clothing, gloves, and goggles. Because it may be irritating and corrosive, it will cause damage if it touches the skin and enters the eyes. If you are in a battle and have no armor, how can you protect yourself?

Also, it is important to dispose of it after use. The remaining medicine and waste should not be discarded at will, but should be properly disposed of in accordance with regulations. With the idea of environmental protection, keep nature clean. If you discard it indiscriminately, it will pollute the soil, contaminate the water source, and harm all things.

In short, use 5- [2-chloro-4- (trifluoromethyl) phenoxy] -2-nitrobenzoate sodium with caution, pay attention to all items, in order to achieve the expected effect, and avoid disasters.