2-thiophenemethanol, 3-bromo-

2-%E5%99%BB%E5%90%A9%E7%94%B2%E9%86%87, its nature is warm, return to the spleen, stomach, kidney meridians. With the ability to warm the middle and dissipate cold, return to the sun and clear the meridians, dry dampness and eliminate phlegm, warm the lungs and drink. Can be used for cold abdominal pain, vomiting and diarrhea, cold veins in the limbs, cold drink wheezing cough and other diseases. This medicine is good for warming the yang of the spleen and stomach, to dissipate cold evil, and to treat the spleen and stomach deficiency and cold. It can also help the heart yang to clear the veins, save the reverse back to the yang, often used in the death of yang syndrome. And can dry dampness and reduce phlegm, treat cold drink and the lungs of asthma and cough.
3-%E6%BA%B4-%E7%9A%84, its nature is sweet, light, flat. Return to the heart, small intestine, and bladder meridians. There are It can be used for edema and less urine, phlegm drinking, dizziness and palpitations, spleen deficiency and less food, loose stools and diarrhea, uneasy, palpitations and insomnia, etc. It is an essential medicine for water infiltration and dampness, where water and dampness stop all kinds of syndromes, regardless of cold and heat, virtual and real, can be applied. It can also strengthen the spleen and replenish the middle, especially for those with spleen deficiency and dampness. And it can calm the mind and treat the syndrome of restlessness.
2-%E5%99%BB%E5%90%A9%E7%94%B2%E9%86%87 sexual warmth, to dissipate cold and warm yang for long; 3-%E6%BA%B4-%E7%9A%84 sexual peace, to benefit water infiltration and dampness, to strengthen the spleen and calm the heart. The two have their own strengths in taste and effect, and the temporary syndrome should be used according to the condition.

2-%E5%99%BB%E5%90%A9%E7%94%B2%E9%86%87, it is sulfur, realgar and saltpeter, and honey to burn, flame, burn hands and houses. This is one of the early gunpowder materials, sulfur, warm, sour, toxic, with insecticides and itching, aphrodisiac laxative effect; realgar is warm, spicy, toxic, can detoxify and kill insects, dry dampness and expectorant. Saltpeter is cold, salty and bitter, with diarrhea, laxative, moisturizing dryness and softness, clearing fire and swelling. The combination of the three, hot and easy to explode, gradually useful in military, fireworks and other aspects.
3-%E6%BA%B4-%E7%9A%84%E7%89%A9%E7%90%86%E6%80%A7%E8%B4%A8: water, colorless and odorless, at room temperature and pressure as a transparent liquid. It has fluidity, can flow from high to low, and then go down, moisturizing all things. The density of water is one gram per cubic centimeter, which is an important reference for measuring the weight of various things. The boiling point of water is 100 degrees Celsius. At this temperature, water changes from liquid to gaseous state and turns into steam. Its freezing point is zero degrees Celsius. When it drops to temperature, water condenses into ice and solidifies from liquid. Water is also a good solvent, and many substances can be dissolved in it, such as salt and sugar. This property is of great significance in various industries such as catering, pharmaceuticals, and chemicals. Water can transfer heat, and water is boiled in a kettle. The heat of fire is used to heat food evenly, and it cooks quickly and well. And because of its large specific heat capacity, warming and cooling are slow, can adjust the climate, to maintain a warm soil and water, the ecological balance is great.

2-%E5%99%BB%E5%90%A9%E7%94%B2%E9%86%87 is the medicine used in the method of fighting poison with poison. Although this medicine is toxic, it can be used properly, or it can cure serious diseases. In the past, doctors often took this thing when they were in difficult and miscellaneous diseases, and Ruoxi used poison to overcome evil. Its strong nature can go deep into the disease center, break the accumulation, attack evil, and make the sinking disease have hope of turning around.
3-%E6%BA%B4-%E7%9A%84 The main user is related to cleaning and maintenance. In daily life, it can be used to cleanse utensils, so that the dirt is removed, and it is as smooth as before. Such as palace utensils and daily utensils, if they are washed with them, the dust will not remain. Furthermore, it is also effective in nourishing the skin. If you occasionally feel evil wind and the skin has a prurigo, wipe it lightly to relieve discomfort. And in medicine, it is also an adjuvant. It can help the medicine to be reconciled and make the medicine better. Or when making medicine, use it to moisten it and immerse it, making the medicine purer and more effective.
In the "Tiangong Kaiwu", everything has its use, and the two are no exception. 2-%E5%99%BB%E5%90%A9%E7%94%B2%E9%86%87 although poisonous, it is a sharp tool for medicine; although 3-%E6%BA%B4-%E7%9A%84 is common, it is indispensable in life and medicine. They are all discovered by the wisdom of the ancients, and they can be used to benefit people's life and relieve suffering. In the world, everyone is in their place and makes their best use.

To prepare dipentanone and tribromoacetone, the method is as follows:
To produce dipentanone, ethyl acetoacetate can be reacted with halogenated hydrocarbons under the action of sodium alcohol, and then hydrolyzed and decarboxylated. The capped ethyl acetoacetate has an active methylene, and sodium alcohol grabs its hydrogen to form a carbon negative ion. Nucleophilic attacks the carbon-halogen bond of halogenated hydrocarbons to obtain a substitute for ethyl acetoacetate. Then hydrolyzed with dilute alkali to form β-ketoacid, decarboxylated by heat, and carbon dioxide escapes to obtain dipentanone. This is a classic synthesis method of ethyl acetoacetate, which can introduce different hydrocarbon groups to produce two kinds of pentanone derivatives with diverse structures.
As for the preparation of tribromoacetone, acetone is used as the raw material, and bromine is used for bromination reaction under appropriate conditions. The α-hydrogen of acetone is affected by carbonyl and has a certain activity. In the presence of acidic or basic catalysts, bromine molecules polarize, and bromine positive ions attack the α-carbon of acetone, gradually replacing α-hydrogen. Under acidic conditions, the reaction is easier to control. Tribromoacetone can be obtained by adjusting the amount of bromine, reaction time and temperature. However, it should be noted that the reaction should be at low temperature and bromine should be added dropwise slowly to prevent excessive bromination and side reactions.
Other methods can also be used, such as using corresponding alcohols, aldose, etc. as starting materials, and converting through multi-step reactions. However, the above methods are relatively convenient and efficient, and are commonly used in organic synthesis practice. When operating, be sure to follow the chemical test specifications, pay attention to safety, and properly handle the reactants and products.

It is necessary to pay more attention to the hidden matter.
The hidden treasure is the first environment. If the two immortal ointments are hidden, their nature is not good, and they must not be invaded by the tide. The tide ointment is perishable and loses its effectiveness. And the quality is also important. The high-quality ointment is easy to melt, and it is low or affects its quality. It should be maintained at an appropriate level. It is also necessary to prevent the harm of rats and the bite of rats.
There are also many studies. For example, in the middle of summer, the nature of this object is not good, but it is also affected when touched. In order to avoid collisions and breakage, soft objects must be used to prevent them from colliding with each other, causing breakage. The production of tools cannot be ignored, and the taste must be smelled, so as not to dye the material. In addition, the quality of the journey also needs to be considered. The speed is good, and the material may be affected by external factors for a long time, resulting in a decline in the quantity.
In the hidden environment, clarity is of paramount importance. On the container, the name, characteristics, and details should be paid attention to, etc., so that people can know it as soon as possible, so as not to do things because of knowledge. In addition, when it is necessary to hide the material, it is necessary to be careful, so as to ensure its integrity and use it.