3 Trifluoromethyl Iodobenzene

Sanse armor is an ancient good agent, which is widely used and is related to the healing of all kinds of diseases.
The first is the treatment of trauma. The husband's skin is damaged, bleeding non-stop, or being injured by a military blade or a servant is damaged. Applying this medicine can quickly coagulate blood, make the wound converge, prevent its infection, promote the healing of the skin and flesh, and save the injured from the pain. In the past, there were war soldiers, who were injured before the battle, and the blood was like an injection. The doctor urgently applied Sanse armor to the wound, and soon, the blood gradually stopped, and in ten days, the wound gradually closed, and he was able to return to the battle.
The second is the treatment of rheumatism and arthritis. Wind cold and dampness are evil, which are mixed to combine and become paralysis, causing joint pain and unfavorable flexion and extension. Sanse carapace can pass through the meridians and collaterals, remove rheumatism, and stop arthralgia and pain. It is often used to decoct soup, take it internally and wash it externally. Internal administration can make the medicinal power follow the meridians and disperse the evil of rheumatism in the body; external washing can make the medicinal power reach the hospital and relieve joint convulsion. There have been old people who have suffered from arthralgia for many years, and the joints are swollen and deformed, and the pain is unbearable. After using this medicine for a few months, the pain is greatly reduced, and the joint movement is gradually comfortable.
Furthermore, it is also effective in gastrointestinal stagnation. If you don't eat properly, it will cause gastrointestinal qi block, and the stagnation is difficult Sanse Jiapi can digest food and guide stagnation, and smooth the qi of the stomach. With an appropriate amount of medicine, decoction and taking, it can make the stagnation, reconcile the stomach, and resolve various diseases.
In addition, it is also good at women's menstrual dysfunction and dysmenorrhea. Qi and blood are not smooth, meridians are blocked, causing irregular menstruation. Sanse Jiapi can promote qi and blood circulation, and relieve pain through menstruation. Before or during menstruation, medication according to the symptoms can make menstrual blood smooth and pain relieved.
In short, Sanse Jiapi, or external application, or internal administration, is a wonderful medicine for trauma, rheumatism, gastroenterology, gynecology and other diseases, and is often used by doctors.

Triacetylbenzarsine, which contains an arsenic compound. This material is generally physical.
Its outer surface is often crystalline, and it is difficult to change the color or color to a certain extent. It has a certain light and crystal shape. It can reflect light from its crystal plane under good light.
Melting has specific characteristics, usually at a certain degree of temperature. The biological phase is difficult, and it is made of solid and liquid. Its melting value is favorable for the extraction of the material. When subjected to a specific degree, the lattice energy is overcome, and the molecular force is changed, resulting in the disintegration of the crystal.
In terms of solubility, it has a certain solubility in common solutions such as ethanol and ether. This is because the soluble molecules of triacetylbenzarsine have similarities. According to the principle of similar phase dissolution, the two can be miscible with each other. In water, its solubility is very small, and the difference between the water molecules and the triacetylbenzarsine molecules is large, and they interact with each other to promote their dissolution.
Density is also important for physical properties. Its density has a certain ratio to water, and under the same conditions, it can be divided into other substances by this property. If it is placed in a liquid medium, according to its density and density, it can be judged that it is fluctuating.
The property is weak, and it is not easy to be separated from the liquid under normal conditions. Due to the molecular force phase, high energy is required to make the molecules escape from the surface. However, under the addition of oil or specific materials, the evaporation will be changed, or some materials will be damaged.

The synthesis of 3-triethylaminopyridine has various paths, each with its own wonders, and let me tell you one by one.
First, it is based on pyridine, so that it reacts with halogenated alkyl hydrocarbons such as bromoethane, etc., in the presence of suitable bases such as potassium carbonate, in an organic solvent such as acetonitrile, by heating. In this process, the nitrogen atom of the pyridine exhibits nucleophilicity, attacking the carbon atom of the halogenated alkane, and the halogen ion leaves to form a quaternary ammonium salt intermediate. Then, the intermediate is treated with a base to eliminate the molecular hydrogen halide, and triethylaminopyridine can be obtained. The raw material of this route is easy to obtain, and the operation is relatively easy. However, the reaction conditions need to be carefully
Second, the corresponding pyridine derivative is used as the starting material, and the amino group is introduced through the alkylation step. First, a suitable amination reagent, such as ammonia gas or an amine compound, is reacted with the pyridine derivative under specific conditions to introduce an amino group. Then a halogenated alkane is alkylated. This alkylation process is similar to the previous method, and attention should be paid to the reaction conditions and the proportion of reactants to ensure the formation of the target product. This method can fine-tune the structure of the product by selecting different pyridine derivatives, which has certain flexibility.
Third, the reaction is catalyzed by transition metals. Using a halide or pseudo-halide containing a pyridine structure as a substrate, a coupling reaction occurs with an organozinc reagent, an organoboron reagent, etc. under the action of a transition metal catalyst such as a palladium catalyst. First, a metal-organic intermediate is formed, and then it is coupled with another reactant to construct a carbon-carbon or carbon-nitrogen bond. Finally, after appropriate post-treatment, triethylamino pyridine can be obtained. This method has high reaction efficiency and good selectivity, but the catalyst cost is high, and the reaction equipment and operation requirements are also strict.
All this synthesis method has its own advantages and disadvantages. It is necessary to consider the cost of raw materials, reaction conditions, product purity and many other factors according to actual needs, and make a careful choice.

When storing and transporting Lycoris Sanxiang methyl ether, pay attention to the following matters.
First, the temperature and humidity of storage must be appropriate. The material of this medicine is delicate, and if the temperature is too high, it will easily cause it to deteriorate and rot, and if it is too low, it may also damage its activity. It is advisable to choose a cool and dry place, the temperature should be controlled between 5 and 15 degrees Celsius, and the humidity should be about 40% to 60%. If the humidity is too high, a desiccant such as lime can be placed to absorb moisture; if the temperature is not appropriate, it can be adjusted by refrigeration or warm equipment.
Second, the packaging should be careful. Use moisture-proof and breathable material packaging, such as oil paper, and then place it in a wooden box or ceramic pot. In this way, it can not only prevent moisture from invading, but also ensure that its breath is unobstructed and not stuffy. Do not use airtight materials such as plastics to avoid water vapor accumulation and damage to the quality of medicinal materials.
Third, during transportation, shock resistance and stability are essential. This medicinal material is fragile, and it is easy to break due to bumps on the way, which affects the efficacy of the medicinal material. Therefore, when loading, it should be padded with soft things, such as hay, cotton wool, etc., to make it stable. Driving should also be smooth, slow and slow, to avoid sudden braking and violent shaking.
Fourth, you should also pay attention to avoid coexisting with odorous things. Sanxiang methyl ether lycoris is easy to absorb odors. If it is stored and transported with odorous products, such as spices, rancid substances, etc., its odor will be contaminated with medicinal materials, which may change its character and taste and damage its efficacy.
In short, the storage and transportation of Sanxiang methyl ether lycoris should be carefully cared for in terms of temperature and humidity, packaging, shock protection and odor avoidance, so as to ensure its good quality and undamaged efficacy.

In today's world, in the market, the price of triethylboronic acid is related to many parties and cannot be easily judged.
The production of this product is divided into complicated and simple techniques, and the materials used are different. If you adopt exquisite methods and use exquisite materials, it must be thick and the price should be high. However, if there is a sudden advance in new technologies, making the production easier and cheaper, the price may be reduced.
Furthermore, the state of supply and demand determines its price. If at a time when there is a need for widespread use, the demand exceeds the supply, and the price will rise. And when the supply exceeds the demand, the merchant wants to sell his goods, so he should reduce the price to promote the market.
There is also competition in the market, competition in the same industry, or to reduce prices and make profits in order to compete for the market, or to increase prices and improve quality in order to show superiority. This all makes the price fickle.
And the difference between the regions is also related to the price. In remote lands, it is difficult to transfer things, and the cost will increase, so the price will be expensive. The capital is Dayi, where water and land converge, and the transshipment is convenient, and the price may be slightly flat.
is the market price of triethylboronic acid, which often changes with various reasons. If you want to know the exact number, you must carefully observe the production, supply, competition, and regional affairs at that time, and you can get it.