1 4 Diiodobutane

1,4-Diphenylbutanedione has many main uses. In the field of organic synthesis, it is often used as a key intermediate. Due to its special chemical structure, it can be converted into many organic compounds with different properties and uses through various chemical reactions. If it is reduced, it can generate corresponding alcohols; after cyclization, it can obtain compounds with specific cyclic structures, which is of great significance in the fields of drug synthesis and materials science.
In materials science, it can be used to synthesize materials with special optical and electrical properties. Polymers based on it may have unique photoelectric conversion efficiency, which may play an important role in the development and preparation of organic Light Emitting Diodes (OLEDs), solar cells and other devices, helping to improve the performance and efficiency of the device.
In the field of pharmaceutical chemistry, compounds derived from 1,4-diphenylbutanedione may have potential biological activity. After reasonable structural modification and modification, it is expected to develop new drugs to show therapeutic effects for specific diseases. For example, it may be helpful for the treatment of certain inflammation-related diseases, neurological diseases, etc., and open up new paths for the development of new drugs.
Although "Tiangong Kaiwu" does not describe 1,4-diphenylbutanedione in detail, it is based on the concept of "everything in the world can be used, only for the wise to explore". In the current era of scientific and technological development, this compound is being valued by the wise with its various uses. It shines brightly in different fields and promotes scientific and technological progress and social development.

1% 2C4-diphenylbutanedione, also known as bibenzoyl, is an organic compound. Its physical properties are as follows:
In appearance, at room temperature and pressure, 1% 2C4-diphenylbutanedione is a yellow crystalline powder, which looks quite unique.
The melting point is at 95-97 ° C. In this temperature range, the substance will undergo a transition from solid to liquid state. The boiling point is 346-348 ° C. When the temperature rises to this range, vaporization from liquid to gaseous state will occur.
This substance is slightly soluble in water, and the degree of solubility in water is quite limited. However, it is easily soluble in organic solvents such as ethanol, ether, and chloroform, and can be dispersed and dissolved relatively well in these solvents.
Its density is about 1.199g/cm ³, which has a specific density value compared to common substances, reflecting its specific ratio of mass to volume.
1% 2C4-diphenylbutanedione is relatively stable at room temperature, but under specific conditions such as high temperature and open flame, it may cause chemical reactions such as combustion. Due to its certain chemical activity, during storage and use, it is necessary to choose a suitable environment and method according to its physical properties, such as storing in a cool, dry and well-ventilated place to avoid changes in its physical state or chemical properties due to environmental factors, thus ensuring the stability of its properties and the safety of its use.

1% 2C4-diphenylbutanedione, also known as bibenzoyl, is an organic compound. It has the following chemical properties:
First, it has the typical properties of carbonyl. The 1% 2C4-diphenylbutanedione molecule contains two carbonyl groups (C = O), and the carbon in the carbonyl group is positively charged and vulnerable to attack by nucleophiles. In the case of alcohols, under the catalysis of acids or bases, acetal reactions can occur to form acetals. When reacted with Grignard reagents, the negatively charged hydrocarbons in the Grignard reagent will attack carbonyl carbons and hydrolyze to form alcohols.
Second, reduction reactions can be carried out. Using lithium aluminum hydride (LiAlH) and sodium borohydride (NaBH) as reducing agents, the carbonyl groups in 1% 2C4-diphenylbutanedione molecules can be reduced to hydroxyl groups, resulting in 1% 2C4-diphenyl-1% 2C4-butanediol. If stronger reducing agents such as sodium metal and alcohol systems are used, bimolecular reduction may also occur, resulting in the formation of pinacol alcohol products.
Third, it can participate in oxidation reactions. Under the action of specific oxidizing agents such as potassium permanganate (KMnO) and potassium dichromate (K _ 2O _ Cr _ 2O _ O _), the carbonyl groups in 1% 2C4-diphenylbutanedione molecules may be further oxidized, resulting in the breaking of carbon-carbon bonds and the formation of oxidation products such as benzoic acid.
Fourth, there is the activity of α-hydrogen. 1% 2C4-diphenylbutanedione carbonyl has a hydrogen atom attached to the α-carbon, which is affected by the electron-withdrawing action of the carbonyl group, and α-hydrogen has a certain acidity. Under the action of alkali, α-hydrogen is easy to leave and form a carbon negative ion. This carbon negative ion can be used as a nucleophilic reagent to participate in nucleophilic substitution or nucleophilic addition reactions, such as nucleophilic substitution with halogenated hydrocarbons, and a hydrocarbon group is introduced at the α-position.

1% 2C4-diphenylbutanedione, also known as bibenzoyl, has many synthesis methods. Although the synthesis of this compound is not directly mentioned in Tiangong Kaiwu, it can be inspired by the chemical process wisdom of the ancients. The following are the common synthesis methods described in ancient Chinese:
First, ethyl benzoate is used as the starting material, and sodium metal is added to co-heat in an alcohol solvent. The method is as follows: Take an appropriate amount of ethyl benzoate, place it in a clean kettle, and add an alcohol solvent to help unify the reaction. Then, put in small pieces of metal sodium, and the sodium will gradually react when it meets the solvent. Simmer slowly under the kettle to make the temperature rise slowly. During this period, a special person needs to be on duty to observe the change of the reaction. The ester group of ethyl benzoate, under the action of sodium metal, undergoes a condensation reaction. The two molecules of ethyl benzoate are connected to each other, and the small alcohol molecules are removed, so it becomes the initial product of 1% 2C4-diphenylbutanedione. After the reaction is completed, the excess sodium is quenched with water, and then the product is purified by extraction, distillation and other methods.
Second, acetophenone is used as the raw material and obtained by oxidation. First take acetophenone in a container, add an appropriate amount of oxidant, such as mild oxidizing agent, similar to what can be used in ancient methods (although the ancient method does not have modern precise reagents, the principle can be passed). At appropriate temperature and conditions, oxidize the α-hydrogen of acetophenone to convert it into carbonyl. After oxidation, the two molecules of acetophenone condense with each other to form 1% 2C4-diphenylbutanedione. The reaction process needs to be controlled by temperature and time to avoid excessive oxidation. After the reaction is completed, the pure product is obtained by separation and refining.
These two are common methods for synthesizing 1% 2C4-diphenylbutanedione. Although they are described in ancient Chinese, modern chemical synthesis is based on similar principles and is constantly refined and optimized.

1% 2C4-diphenylbutanedione, there are many things to pay attention to during storage and transportation.
When storing, the first choice of environment. It should be placed in a cool and dry place, away from direct sunlight. Due to the heat and light of sunlight, or its chemical properties may change, its quality will be damaged. And this environment can reduce the risk of moisture and prevent it from changing due to moisture. In addition, the storage place must be well ventilated to avoid the accumulation of harmful gases and affect its properties.
In addition, it must be separated from oxidants, acids, bases and other substances. These substances have different chemical activities. If they coexist with 1% 2C4-diphenylbutanedione, or react chemically, it will cause danger, or make 1% 2C4-diphenylbutanedione lose its original characteristics.
When transporting, the packaging must be sturdy. Choose the right packaging material, which can resist vibration, collision and friction, and ensure that it is not damaged in transit. And the packaging should be clearly marked with warning signs, such as "flammable" and "toxic", so that the transporter and the contact person know its dangerous nature and deal with it carefully.
During transportation, it is also important to drive steadily. Avoid violent actions such as sudden brakes and sharp turns to avoid package damage. If the transportation time is long and there is a high temperature place on the way, pay more attention to temperature control to prevent the decomposition or reaction of 1% 2C4-diphenylbutanedione due to high temperature.
All of these, the storage and transportation of 1% 2C4-diphenylbutanedione are key, and the practice can ensure its safety and quality, and the risk of violation or accident.