2% 2C3-diethoxybenzene is an important organic compound in industrial synthesis. Its main uses are rich, and it is of significance in both the traditional process and the modern chemical industry described in "Tiangong Kaiwu".
First, in the field of fragrance synthesis, 2% 2C3-diethoxybenzene contributes significantly. Because of its unique aromatic structure, it can endow fragrances with a special aroma. In ancient times, although this compound was not explicitly mentioned, various fragrance substances were required for fragrance preparation. 2% 2C3-diethoxybenzene is obtained indirectly or by natural extraction, and is used to increase fragrance. In today's fragrance industry, this compound has become a key raw material, and has been precisely synthesized and prepared for use in perfumes, cosmetics, detergents, etc., to add a pleasant aroma.
Second, it is also common in the field of pharmaceutical synthesis. In medicinal chemistry, this compound is often used as a key intermediate. Its specific chemical structure is the cornerstone of drug molecules. Although ancient medicine was not directly used for this, it may contain similar chemical transformations in the processing and refining of herbs. Today's pharmaceuticals, with modern organic synthesis technology, use 2% 2C3-diethoxybenzene as the starting material, and through a series of reactions, can produce a variety of drugs with specific physiological activities, such as drugs for the treatment of cardiovascular diseases and nervous system diseases.
Third, in the field of organic synthesis chemistry, 2% 2C3-diethoxybenzene is an important synthetic building block. Chemists use its functional group characteristics to carry out various reactions and build complex organic molecular structures. This is of great significance in the total synthesis of natural products and the research and development of new materials. Although "Tiangong Kaiwu" does not describe organic synthesis in detail, the chemical process concept contained in it is related to this, and it is all about the conversion of substances to obtain the desired products. 2% 2C3-diethoxybenzene has this characteristic to promote the development of organic synthetic chemistry and lay the foundation for the research and development of new materials and new drugs.

2% 2C3 -diethoxybenzene is an organic compound with the following physical properties:
Viewed at room temperature, it is mostly a colorless to light yellow transparent liquid with a clear texture, which is easy to detect and operate. Smell, often has a special aromatic smell, and this smell can be used as one of the characteristics to identify it.
When it comes to boiling point, it is about a certain temperature range. Due to different conditions or slight differences, it usually changes from liquid to gaseous state within this temperature range. This property is crucial in chemical operations such as separation and purification. Its melting point also has a specific value. When the temperature drops below the melting point, it condenses from liquid to solid state. This melting point value is an important parameter that controls its physical form.
2% 2C3-diethoxybenzene has a density lower than that of water. If mixed with water, it will float on the water surface. This density characteristic needs to be considered when involving scenarios such as liquid-liquid separation. And it is insoluble in water, but soluble in organic solvents such as ethanol and ether. This solubility characteristic is widely used in organic synthesis, chemical analysis and other fields. It can be dissolved and extracted with the help of suitable organic solvents.
In addition, 2% 2C3-diethoxybenzene has moderate volatility, neither highly volatile and quickly dissipated, nor extremely difficult to volatilize and cause long-term residues. This volatility affects its stability and durability in the environment. In practical applications, it needs to be properly stored and used according to this property.

2% 2C3-diethoxybenzonitrile. The chemical properties of this substance are quite stable. In its structure, the stability of the benzene ring gives it a certain degree of chemical inertness. Two ethoxy groups are connected to the benzene ring, and the ethoxy group is the power supply group, which can increase the electron cloud density of the benzene ring and enhance the stability of the molecule to a certain extent. Although the nitrile group (-CN) has a certain reactivity, it is affected by the benzene ring and ethoxy group, and its activity degree is also limited.
Nitrile is not prone to hydrolysis and addition reactions under general conditions, and specific catalysts, temperatures and pressures are required to promote the reaction. If you want to hydrolyze the nitrile group into a carboxyl group, a strong acid or a strong base is often required as a catalyst, and the reaction is carried out under heating The addition reaction also requires specific reagents and conditions, such as the reaction with Grignard reagents, an anhydrous and oxygen-free environment and a suitable solvent.
The part of the benzene ring, due to the existence of the conjugate system, the electron cloud is delocalized, making the benzene ring difficult to add and oxidize, and more prone to substitution reactions. The electron carrier effect of the ethoxy group will make the electron cloud density of the adjacent and para-position of the benzene ring relatively high, and the electrophilic substitution reaction is prone to occur in the adjacent and para-position. However, this substitution reaction also requires suitable electrophilic reagents and reaction conditions, and can be carried out non-arbitrarily.
Overall, 2% 2C3 -diethoxybenzonitrile is chemically stable under conventional and general conditions, and specific conditions are required to initiate significant chemical reactions.

To prepare 2,3-dibromobutane, there are many ways to synthesize it.
First, 2-butene can be added to the bromine elemental substance. There is a carbon-carbon double bond in the structure of 2-butene, which is an unsaturated bond and has active properties. The bromine atom of the bromine elemental substance has strong electrophilicity and can be added to the carbon-carbon double bond of 2-butene. The reaction process is: the π bond in the carbon-carbon double bond is broken, and two bromine atoms are added to the carbon atoms at both ends of the double bond, thereby generating 2,3-dibromobutane. The reaction conditions are mild, only 2-butylene is introduced into the carbon tetrachloride solution of bromine, and the reaction can be rapid at room temperature. The yield is quite high, and there are few side reactions, and the product purity is good.
Second, 1-butyne can be started from 1-butyne. First, 1-butyne and one molecule of hydrogen are partially added under the action of Lindela catalyst to generate 1-butylene, which is to control the degree of reaction, so that alkynes only add one molecule of hydrogen to become alkenes. Then 1-butylene is added with bromine elemental to obtain 2-bromo-1-butane. Then, 2-bromo-1-butane is co-heated with a strong base (such as sodium hydroxide alcohol solution) in an alcohol solution, and a digestion reaction occurs to generate 2-butene. Finally, 2-butene is added with bromine elemental, and 2,3-dibromobutane can be prepared. This route step is slightly more complex, but the source of raw material 1-butyne or more widely, which can be selected according to the actual situation.
Or it can be started from 2-butanol. 2-butanol is heated under the action of concentrated sulfuric acid to undergo a digestion reaction to generate 2-butene. During this process, the alcohol molecule removes a molecule of water to form a carbon-carbon double bond. After 2-butene is added with bromine elemental, 2,3-dibromobutane can also be obtained. However, the 2-butanol elimination reaction needs to control the temperature and the amount of concentrated sulfuric acid to prevent side reactions, such as intermolecular dehydration to form ether substances.

For 2% 2C3-diethyl ether benzene, there are many things to pay attention to during storage and transportation.
The cover is flammable, and it is easy to burn and explode in case of open flames and hot topics. Therefore, when storing, it must be placed in a cool and ventilated warehouse, away from fire and heat sources. The storage temperature should not exceed 30 ° C. It should be stored separately from oxidants, acids, and edible chemicals, and should not be mixed. The warehouse should be equipped with suitable materials to contain leaks.
During transportation, caution must also be taken. Transportation vehicles should be equipped with corresponding varieties and quantities of fire equipment and leakage emergency treatment equipment. In summer, it is advisable to transport in the morning and evening to avoid sunlight exposure. The trough (tank) car used during transportation should have a grounding chain, and holes can be set in the trough to baffle to reduce the static electricity generated by shock. It is strictly forbidden to mix with oxidants, acids, edible chemicals, etc. During transportation, it should be protected from exposure to the sun, rain, and high temperature. During stopovers, it should be kept away from fire, heat sources, and high temperature areas. The exhaust pipe of the vehicle must have a fire-blocking device, and it is forbidden to use mechanical equipment and tools that are prone to sparks for loading and unloading. Road transportation should be carried on the prescribed route, and do not stop in residential areas and densely populated areas. It is forbidden to slip when transporting by railway.
All these are to ensure the safety of 2% 2C3-diethyl ether benzene during storage and transportation, so as to avoid accidents.