N- (2-hydroxybenzyl) benzyl-1,2-dione, that is, bibenzoyl, its main uses are as follows:
Bibenzoyl has important applications in many fields. In the field of organic synthesis, it is often used as a key intermediate. For example, in the preparation of some drugs, fragrances and functional materials with specific structures, bibenzoyl can participate in a variety of organic reactions, such as condensation reactions with other reagents to construct complex organic molecular structures. Taking the synthesis of some drugs with antibacterial activity as an example, bibenzoyl can provide a specific skeleton structure for drug molecules, which in turn endows drugs with unique pharmacological activities.
In the field of analytical chemistry, bibenzoyl also plays an important role. It can be used as a reference material in chemical analysis, used to calibrate instruments, determine the accuracy of analytical methods, etc. For example, in high performance liquid chromatography analysis, bibenzoyl can be used as a standard of known concentrations for drawing standard curves, so as to achieve accurate content determination of related substances in samples.
In addition, in terms of materials science, some materials prepared by bibenzoyl have special optical and electrical properties. Polymer materials prepared partly based on bibenzoyl have shown potential application value in photoelectric conversion, fluorescence display and other fields, and are expected to provide basic material support for the research and development of new optoelectronic devices.

N- (2-hydroxybenzyl) benzyl-1,2-diether is a kind of organic compound. Its physical properties are as follows:
Looking at its properties, at room temperature, it is mostly a colorless to light yellow oily liquid with a relatively viscous texture. The color and shape of this substance are closely related to the molecular structure and molecular interactions. The phenyl ring structure and ether bonds contained in its molecules give it a unique physical manifestation.
When it comes to odor, it often emits a faint aromatic smell. This aromatic smell originates from the conjugated system of benzene rings, which can produce specific electronic transitions, which in turn trigger the response of human olfactory receptors, so that we can perceive its special smell.
As for the boiling point, due to the existence of van der Waals forces between molecules and the weak intermolecular forces caused by ether bonds, the boiling point is usually in a relatively high range, roughly around [X] ° C. This boiling point value is closely related to the molecular mass and the strength of the intermolecular forces. The larger the molecular mass, the stronger the intermolecular forces, and more energy is required to overcome the intermolecular attractive forces, resulting in an increase in the boiling point.
In terms of melting point, it is relatively low, mostly below [X] ° C. This is due to the irregularity of molecular structure and the influence of ether bonds, which makes it difficult for molecules to arrange neatly to form a tight lattice structure, so the melting point is not high.
Solubility is also one of its important physical properties. The substance can exhibit good solubility in organic solvents such as ethanol, ether, chloroform, etc. This is because its molecular structure has similar polarities to organic solvents, and according to the principle of "similar miscibility", the two are easy to mix with each other. However, its solubility in water is poor, because the strong polarity of water molecules is quite different from the molecular polarity of the substance, it is difficult to form effective interactions between molecules, thus limiting its solubility in water.

The chemical properties of N- (2-hydroxybenzyl) benzyl-1,2-dinaphthalene are quite stable. Among this compound, the structure of benzene ring and naphthalene ring endows it with a certain rigidity and conjugate system, which makes its electron cloud distribution more special. The existence of aromatic rings makes the substance relatively stable and not easy to be attacked by general reagents.
From the perspective of spatial structure, the spatial arrangement of naphthalene ring and benzyl group forms a certain spatial barrier, which protects the molecular core to a certain extent and reduces the influence of external factors on its core structure. And the chemical bond energy contained in the substance also contributes to the stability. The bond energy of carbon-carbon bond and carbon-hydrogen bond is higher, and higher energy is required to break the bond, which further improves the stability.
Under common chemical reaction conditions, such as room temperature and pressure, general acid-base environment, N- (2-hydroxybenzyl) benzyl-1,2-dinaphthalene can maintain its own structural integrity. However, when exposed to extreme conditions such as strong oxidants and high temperature and high pressure, its structure may change. In general, the chemical properties of N- (2-hydroxybenzyl) benzyl-1,2-dinaphthalene show high stability in the conventional chemical environment.

To prepare N- (2-hydroxybenzyl) benzyl-1,2-diamine, the method is as follows:
Take the benzyl amine as the base first, make it meet with paraformaldehyde in a reaction kettle at a suitable temperature, and use acid as the catalyst to promote its condensation. This step aims to obtain the intermediate of 2-hydroxybenzyl benzyl amine. In the meantime, temperature control, time control and catalyst amount are all important. If the temperature is high, the side should be generated, and if it is low, it should be slowed down; if the amount of catalyst is large, it should be difficult to advance.
times, mix 2-hydroxybenzyl benzyl amine with another equivalent benzyl amine, put it into a reactor with a suitable solvent, add an acid binding agent, and heat up to make the reaction. The choice of acid binding agent is related to the reaction equilibrium and product purity, common such as potassium carbonate and triethylamine. In this step, the amine group is retracted with hydroxybenzyl to form N- (2-hydroxybenzyl) benzyl-1,2-diamine.
After the reaction is completed, it is purified by extraction, distillation, and recrystallization. Extraction can remove impurities in different phases; distillation according to the boiling range; recrystallization takes the product in a suitable solvent, reduces the temperature to make pure crystallization, removes impurities and stores sperm, and obtains high-purity N- (2-hydroxybenzyl) benzyl-1,2-diamine.

There are many key things to pay attention to when storing and transporting N- (2-furfuryl) bran-1,2-dimethyl ether.
In terms of storage, the first choice of environment. It should be placed in a cool and well-ventilated place, because the substance may be sensitive to temperature and air. A cool and ventilated environment can avoid changes in its properties due to excessive temperature or poor air. The temperature of the warehouse should be strictly controlled and should not exceed a specific value to prevent potential safety hazards or quality changes. At the same time, it should be kept away from fire and heat sources, because it has certain flammability, and there is a risk of explosion in case of open flame, hot topic or combustion.
In addition, when storing, it must be stored separately from oxidants, acids, alkalis, etc. Because of its active chemical properties, contact with these substances is prone to chemical reactions, or cause danger. And explosion-proof lighting and ventilation facilities should be used to avoid accidents caused by electric sparks, etc. At the same time, it is forbidden to use mechanical equipment and tools that are prone to sparks to reduce the chance of danger in an all-round way.
As for transportation, it is necessary to ensure that the vehicle is in good condition and has the necessary safety facilities. Before transportation, the substance should be properly packaged to ensure that the packaging is complete and sealed to prevent leakage during transportation. During transportation, the driving speed should not be too fast, and sudden braking should be avoided to prevent damage to the packaging. In addition, transportation vehicles should be driven according to the specified route, away from sensitive areas such as densely populated areas and water sources. In case of leakage, the harm to personnel and the environment can be reduced. Transportation personnel also need to have professional knowledge and know emergency treatment methods. In case of problems, they can respond quickly and correctly to ensure transportation safety.