1,4-Diphenylbutadiene is an organic compound with a wide range of main uses. Although it is not directly recorded in ancient books such as "Tiangong Kaiwu", its use can also be explained in ancient Chinese.
One of them can be used in organic synthesis. This compound contains a conjugated double bond structure and has high reactivity. It is often a key intermediate in organic synthesis. In ancient Chinese, it can be used as a "basic element" for the synthesis of various organic compounds. Through clever synthesis, organic molecules with more complex structures and specific functions can be obtained, just like building a building with bricks and stones, and thus building a diverse organic structure.
Second, in the field of materials science, it can be used as a material for the preparation of optoelectronic devices due to its unique optical and electrical properties due to its conjugated structure. For example, the preparation of organic Light Emitting Diode (OLED) can improve the luminous performance of the device, increase the luminous efficiency and color purity. In ancient times, it can be called "the material of optoelectronic devices, which increases the luminous effect and makes the color pure and bright", which has made great contributions to the development of lighting and display technology.
Third, in the field of scientific research, 1,4-diphenylbutadiene is an important model compound for studying the electronic structure and photophysical properties of conjugated systems. Scholars use this to explore basic chemical and physical processes such as electron transition and energy transfer of conjugated molecules, just like using it as a "mirror" to gain insight into the mysteries of chemical and physical changes in the microscopic world, and to provide evidence and basis for the development of chemical and physical theories.

1% 2C4-diphenylbutane, its physical properties are as follows:
This substance is mostly solid at room temperature, like a white crystalline powder with a certain luster. Its melting point is between 88 and 90 degrees Celsius. At this temperature, 1% 2C4-diphenylbutane of the solid state will melt into a liquid state. The boiling point is about 339-340 degrees Celsius. When the temperature rises to this range, the liquid substance will vaporize into a gaseous state.
1% 2C4-diphenylbutane has a density of nearly 1.018g/cm ³, which is slightly lighter than water. If placed in water, it should float on the surface of the water. In terms of solubility, it is insoluble in water, but soluble in organic solvents such as ethanol, ether, and benzene. This property is due to its molecular structure. Its molecules are non-polar, while water is polar, and it is difficult to dissolve in water according to the principle of "similar miscibility". Organic solvents are mostly non-polar or weakly polar, so they can be dissolved.
In addition, 1% 2C4-diphenylbutane is flammable and will burn when exposed to open flames or hot topics under suitable conditions. When burning, carbon dioxide and water are usually produced. If the combustion is not sufficient, substances such as carbon monoxide may be formed.
It can be seen from the above that the physical properties of 1% 2C4-diphenylbutane affect its application and treatment in many fields.

The chemical properties of 1% 2C4-dibromotetrafluorobenzene are still stable. In this compound, the presence of bromine and fluorine atoms endows it with unique chemical properties. Fluorine atoms have strong electronegativity, which can stabilize the molecular structure, and because of the distribution of electron clouds, the chemical activity of the compound has changed.
In terms of structure, the benzene ring is a stable conjugated system, which can disperse electrons and enhance the stability of the molecule. Although the bromine atom has a certain activity, its reactivity is also limited in the structure of tetrafluorobenzene due to the electronic effect of the fluorine atom.
Under normal chemical reaction conditions, 1% 2C4-dibromotetrafluorobenzene is not prone to spontaneous reaction. Common chemical reactions such as oxidation and reduction are difficult to make their structures change significantly without specific catalysts or suitable reaction conditions.
However, although its chemical properties are relatively stable, it may react under special reaction conditions, such as high temperature, high pressure and the presence of specific catalysts. For example, in the presence of some metal catalysts, bromine atoms may participate in the substitution reaction, but the reaction conditions are more severe than those of ordinary compounds.
In summary, 1% 2C4-dibromotetrafluorobenzene is chemically stable under normal conditions, but it still has certain reactivity under special environmental and condition stimuli.

There are several ways to synthesize 1,4-dibromobutane:
One is to use 1,4-butanediol as the starting material. First, 1,4-butanediol is co-heated with hydrobromic acid. In this reaction, the alcohol hydroxyl group is replaced by a bromine atom, and then 1,4-dibromobutane is obtained. The reaction mechanism is a nucleophilic substitution reaction. The bromine ion in hydrobromic acid acts as a nucleophilic reagent to attack the carbon atom attached to the alcohol hydroxyl group, and the hydroxyl group leaves in the form of water. The raw materials of this method are easy to obtain, the reaction conditions are relatively mild, and the yield is sometimes unsatisfactory. The reaction requires careful removal of unreacted raw materials and by-product water.
The second is to use tetrahydrofuran as the starting material. First, tetrahydrofuran is hydrolyzed to 1,4-butanediol under acidic conditions, and then reacted with hydrobromic acid to obtain 1,4-dibromobutane as described above. Although this path has a little more steps, tetrahydrofuran has a wide range of sources and low cost. The hydrolysis step needs to control the acidic conditions and reaction time, otherwise it is easy to have side reactions. Follow-up reactions with hydrobromic acid are the same as the previous method, and attention should also be paid to the reaction conditions and post-treatment.
Third, 1,3-butadiene can be added to hydrogen bromide. 1,3-butadiene has a conjugated double bond. When it is added to hydrogen bromide, it can be mainly formed into 1,4-addition products by controlling the reaction conditions, and then 1,4-dibromobutane can be obtained through appropriate conversion. This method cleverly utilizes the characteristics of conjugated diolefins and has good atomic economy. However, the reaction conditions are relatively harsh, and factors such as temperature and catalyst need to be precisely controlled to ensure that the reaction mainly proceeds in the direction of 1,4-addition, otherwise it is easy to produce by-products such as 1,2-addition, which increases the difficulty of separation and purification.

1% 2C4-diphenyltetrahydronaphthalene should pay attention to the following matters when storing and transporting:
First, the storage place must be dry and cool. This material prefers dryness and coolness. If placed in a humid and warm place, it may change its properties or cause quality damage due to the environment. If hidden in a dark and well-ventilated warehouse, away from heat and fire sources, so as to ensure its stability.
Second, when transporting, the packaging must be solid and stable. Because of its certain chemical properties, if the packaging is omitted, it may cause leakage if it encounters bumps and vibrations during transportation, or comes into contact with external substances, which may cause leakage and cause harm. Be sure to choose suitable packaging materials to ensure that the packaging is tight and does not cause leakage.
Third, avoid mixing with oxidants and other substances. The chemical properties of 1% 2C4-diphenyltetrahydronaphthalene determine that when it comes into contact with oxidants, it is easy to trigger chemical reactions, or cause dangerous situations such as combustion and explosion. Therefore, whether it is stored in the warehouse or during transportation, it should be placed separately from dangerous substances such as oxidants and transported separately.
Fourth, the storage and transportation places should be equipped with significant warning signs. Make relevant personnel aware that this is a special chemical at a glance, and it needs to be operated according to specific procedures. And the place should be equipped with complete fire protection and emergency treatment facilities to prevent accidents. In the event of an accident, it can immediately respond effectively to reduce losses and hazards.