2 Iodophenyl Methyl Ether

2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A, its chemical properties are rich.
First of all, it is acidic. 2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A molecule has a carboxyl group (-COOH), which is an acidic group. It can partially produce hydrogen in water, and it is acidic. In case of hydrogen, the carboxyl group can be neutralized and reversed, such as hydroxide (NaOH), the hydroxide (OH) in the carboxyl group is synthesized into water, and itself forms a carboxylic acid.
Secondly, it can generate esterification and reverse. Because it contains carboxyl groups, under the action of catalysis such as sulfuric acid, and it is necessary to add hydrogen, it can generate esterification and reverse. In the case of ethanol (C ² H OH), the alkyl group (-OH) in the carboxyl group and the alkyl atom (-H) in the ethanol combine to form water, and the alkyl part of the alkyl group is bonded to each other to form an ester compound. This reaction is an important way for the synthesis of alkyl esters.
Furthermore, the benzene in the 2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A molecule has some properties of aromatic alkyl. Substituted alkyl atoms can be formed on benzene, such as alkyl, under the action of catalysis, alkyl atoms can replace the alkyl atoms on benzene.
In addition, some functional alkyl atoms in the molecule can oxidize the original alkyl under the action of alkyl. For example, the carboxyl group can generate oxidative reaction under the action of alkyl oxide, and some groups on benzene may also be oxidized due to the action of alkyl. Moreover, 2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A's chemistry makes it useful in many fields such as synthesis and chemical engineering.

To prepare di-bromobenzoic acid, the following method can be used.
First take toluene, use iron bromide as a catalyst, and undergo a substitution reaction with bromine. Because methyl is an ortho-para-localization group, bromine atoms mainly replace the ortho-site and para-site hydrogen atoms of methyl on the benzene ring to obtain a mixture of o-bromotoluene and p-bromotoluene. This reaction mechanism is that the bromine molecule is polarized under the action of iron bromide to generate bromine positive ions, which attack the benzene ring and undergo electrophilic substitution.
Then, the obtained o-bromotoluene or p-bromotoluene is oxidized. A strong oxidizing agent such as potassium permanganate can be selected. Under heating and alkaline conditions, the methyl group of toluene is oxidized to a carboxyl group to obtain o-bromobenzoic acid and p-bromobenzoic acid respectively. During this oxidation process, the methyl group is gradually converted to a carboxyl group through a series of intermediates.
If you want to obtain pure di-bromobenzoic acid, you can first bromide toluene to obtain a bromotoluene, isolate one of the isomers, and then carry out the second bromide. Because the carboxyl group is the meta-locator group, the bromine atom introduced in the first bromide can affect the position of the bromine atom entering the benzene ring during the second bromide, so that the second bromine atom enters the appropriate position. After that, the methyl group is oxidized to the carboxyl group to obtain
The whole process requires attention to the control of reaction conditions, such as temperature, catalyst dosage, etc., to improve yield and purity. And the separation and purification of the product after each step of the reaction is also crucial. Distillation, recrystallization, column chromatography and other methods are commonly used to achieve this purpose.

2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A, its effectiveness has been demonstrated in many fields.
In the field of medicine, this medicine can be used to cure all kinds of diseases. In case of exogenous wind evil, causing fever, aversion to cold, headache, 2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A can solve the surface and remove the wind, so that the evil can be solved from the surface, the heat retreats and the body is cool, and the headache is also relieved. If there is moisture stagnation inside, the spleen and stomach are out of harmony, causing nausea and vomiting, bloating and diarrhea, it can also reduce dampness and middle, adjust the spleen and stomach qi, make dampness clear and stop, and vomiting gradually disappear.
In the context of health care, it is also quite beneficial. Taking it regularly can regulate qi and blood, make qi and blood flow smoothly, and reconcile health. Filled with qi and blood, the complexion is ruddy, the spirit is hale and hearty, and the body is strong and healthy. And it can help the spleen and stomach to transport and transform, so that the diet can be transformed, nutrients are well absorbed, nourish the viscera, strengthen the body, and resist the invasion of external evil.
In terms of daily epidemic prevention, 2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A can remove filth and detoxify. When an epidemic is prevalent, it can be burned indoors. Its aroma can purify the air, disperse filthy and turbid gas, and reduce the risk of epidemic transmission. When people hear it, it can also invigorate the spirit, improve morale, and store morale. Evil can not be dried.
Therefore, 2-%E7%A2%98%E8%8B%AF%E5%9F%BA%E7%94%B2%E9%86%9A in the fields of medical treatment, health care, and daily epidemic prevention, it has significant effects. It is a rare good medicine and good thing.

In today's city, the price of the two mountains and forests is affected by many factors. The region where they live, the quality of the order, and the situation of supply and demand all depend on the cause of the gebo.
The two mountains and forests are mostly located in the mountains and dense forests. If the land encounters diseases and the sky is difficult, the amount of supply in the city will be low, and it will be high. On the contrary, if the land is rainy, and there is a lot of reproduction, the supply will be low, and the supply will be low.
The order will also be affected. Every season of fishing, the supply in the city will increase, and there may be a drop. However, it is not the lack of catch, and the supply will be scarce, and the demand will be high.
Furthermore, the importance of supply and demand is paramount. In the near future, due to factors such as manufacturing, engineering, etc., the demand for the two countries is strong. If the supply cannot be increased, the demand will be increased. If the demand is weak, the supply is abundant, and the price is also high.
Of course, the two countries are not common in the market, less than 10%, more than 100%, or even more, all because of the above-mentioned interaction. Business and catchers, pay attention to the market, and it is appropriate.

"Tiangong Kaiwu" says: "Where arsenic is found, Chenzhou is found in the south, and Datong is found in the north. It is made of arsenic, which is made of gold and stone, and its color is tin." Arsenic is the raw ore of arsenic, and the chemical name of arsenic is arsenic trioxide, which is highly toxic. As for the preservation conditions of arsenic raw ore, although there is no detailed scientific record in ancient times, it can be inferred from common sense and related knowledge.
Arsenic is mostly hidden in deep mountain ore veins. In its natural state, it is in cold, dry and less populated places. If you want to preserve it artificially, the first thing is to place it in an airtight container. Because of its severe toxicity, once exposed to the air, it may react with certain components in the air, and it is also afraid of volatilization and cause toxicity to the surrounding environment, endangering humans and animals. Furthermore, it needs to be stored in a dry place. Humid environments may cause chemical reactions such as deliquescence of arsenic, which may not only change its chemical properties, but also increase the risk of its diffusion. Moreover, the storage place should be away from water sources. Water may dissolve arsenic, and once it flows into rivers, lakes and seas, it will pollute the water source and cause large-scale poisoning.
Although there is no modern advanced preservation technology in ancient times, it is also aware of the danger of arsenic raw ore. It is often carefully placed in a dry and airtight place away from crowds to prevent it from leaking and hurting people and causing damage to life.