(3E,6E)-3,6-Bis[2-(4-Chloro-2-Phosphonophenyl)Hydrazinylidene]-4,5-Dioxo-3,4,5,6-Tetrahydronaphthalene-2,7-Disulfonic Acid

This substance is named (3E, 6E) -3,6-bis [2- (4-chloro-2-phosphonylphenyl) hydrazine fork] -4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid. To clarify its chemical structure, let me tell you in detail.
In this compound, the naphthalene ring is the core skeleton, and the tetrahydronaphthalene indicates that part of the double bond on the naphthalene ring is hydrogenated to form a tetrahydro structure. At the 2nd and 7th positions of the naphthalene ring, there are sulfonic acid groups, respectively, and the sulfonic acid groups are -SO 🥰 H, which are strongly acidic.
At the 3rd and 6th positions of the naphthalene ring, each has a double [2- (4-chloro-2-phosphonylphenyl) hydrazine fork] structure. Among them, 2- (4-chloro-2-phosphonylphenyl) indicates that there is a phosphonyl group connected at the 2nd position of the benzene ring, and the phosphonyl group is -PO 🥰 H ², and the 4th position is connected with a chlorine atom. This phenyl group is then connected to the hydrazine fork through the 2nd position, and the hydrazine fork structure is -CH = N - NH -. The two such structures are connected to the 3 and 6 positions of the naphthalene ring, respectively, and the configuration is (3E, 6E). The E configuration indicates that the larger group on both sides of the double bond is in the trans form.
4,5-dioxy represents that there is a carbonyl group at the 4 and 5 positions of the naphthalene ring, and the carbonyl group is C = O structure. Overall, this compound has a complex structure, with multiple functional groups connected to each other, and its unique structure may endow it with special chemical and physical properties.

(3E, 6E) -3,6-Bis [2- (4-chloro-2-phosphonylphenyl) hydrazine fork] -4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid, which has a wide range of uses. In the industrial field, it is often used as a key raw material for special dyes or pigments. With its unique chemical structure, it can impart excellent dyeing properties to the material after being treated by a specific process. For example, it can be used in the dyeing of high-end textile fabrics to make the color bright and lasting. In the field of scientific research, it is an important reagent for biochemical research. It can be used for the labeling and detection of biological macromolecules such as proteins and nucleic acids. With its specific interaction with biomolecules, it can help researchers accurately analyze the In terms of pharmaceutical research and development, because of its specific chemical activity, it may become a lead compound. After structural modification and optimization, it is expected to develop new drugs and open up new paths for disease treatment. In short, this compound has key uses and potential value in many fields such as industry, scientific research and medicine.

(3E, 6E) -3,6-Bis [2- (4-chloro-2-phosphonylphenyl) hydrazine fork] -4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid The physical properties of this product are quite unique. Looking at its morphology, it often takes a specific shape at room temperature, or is a powder or a crystal, depending on the specific preparation and environmental conditions. Its color or pure and elegant color, or different colors, are all its external characteristics.
When it comes to solubility, in specific solvents, this product exhibits different solubility properties. In some polar solvents, it may have good solubility, but in non-polar solvents, the degree of solubility is very different. The difference in solubility is closely related to the characteristics of each group in the molecular structure. The sulfonic acid group and other polar groups contained in the molecule make it have a certain affinity for polar solvents.
Besides its melting point, after rigorous determination, this substance has a specific melting point value. The melting point is an important physical property of the substance, and its height reflects the strength of the intermolecular force. The molecular structure of this substance causes the intermolecular force to present a specific situation, which in turn determines the melting point. By exploring the melting point, we can gain in-depth insight into the close relationship between its molecular stability and structure.
And its density is also a key physical property. The density value reflects the mass of the substance per unit volume and is related to the degree of closeness of the molecular arrangement. The molecular structure of the substance determines the molecular arrangement, which in turn affects its density performance. The study of density is helpful to understand its physical behavior and state in different environments. In short, the physical properties of (3E, 6E) -3,6-bis [2- (4-chloro-2-phosphonylphenyl) hydrazine fork] -4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid are all important clues for in-depth understanding of the nature of this substance.

The method of preparing (3E, 6E) -3,6-bis [2- (4-chloro-2-phosphonylphenyl) hydrazine fork] -4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid is particularly complicated and requires fine steps and rigorous operation.
The first raw material is to take an appropriate amount of 4-chloro-2-phosphonylbenzoic acid, which needs to be of high purity and has few impurities. Put it in a clean reactor with hydrazine hydrate in an appropriate ratio. The kettle is filled with nitrogen to drive out the air to create an oxygen-free environment to prevent the oxidation of the raw material. Heat up to a specific temperature, usually between 80-100 ° C, and continue to stir to fully react the two to form 2- (4-chloro-2-phosphonylphenyl) hydrazine. This step requires close attention to the reaction process, monitoring by thin layer chromatography, until the reaction is complete, cool to room temperature.
Take 3,6-diimino-4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid, place it in another reaction vessel, add an appropriate amount of organic solvent, such as dimethyl sulfoxide, and stir to dissolve. Then the previously prepared 2- (4-chloro-2-phosphonylphenyl) hydrazine is slowly added to it, and an appropriate amount of basic catalyst, such as a dilute solution of sodium carbonate, is added dropwise. Control the reaction temperature at 40-60 ° C and the number of reactions. During this period, the color state of the solution may change, so you need to be patient. After the reaction is completed, adjust the pH to weak acidity with dilute acid to precipitate the product.
Compound by filtration to collect the precipitation, and wash it repeatedly with deionized water to remove impurities. After that, the precipitate is placed in a vacuum drying oven, the temperature is controlled at 50-60 ° C, and when dried for a number of times, the solid product of (3E, 6E) -3,6-bis [2- (4-chloro-2-phosphonylphenyl) hydrazine fork] -4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid is obtained. However, this product or containing some impurities can be recrystallized and further purified with a suitable solvent, such as ethanol-water mixed solvent, to obtain a high-purity product. The whole preparation process requires strict compliance with operating procedures and attention to details to achieve ideal results.

(3E, 6E) -3,6-Bis [2- (4-chloro-2-phosphonylphenyl) hydrazinido] -4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid. Many matters need to be paid attention to when using this compound.
First, the nature of this compound may be special, and caution must be used during operation. Due to its complex chemical structure, it contains phosphoryl groups, sulfonic acid groups and other functional groups, and the functional groups interact with each other, or it may be sensitive to environmental factors. In case of high temperature, there is a risk of decomposition, so when storing and using, the temperature should be controlled in a suitable range to avoid its inactivity or adverse reactions due to excessive temperature.
Second, due to its chlorine atoms, under specific conditions, chlorine may be released. This chlorine element may react with surrounding substances, in some chemical reaction systems, or interfere with the reaction process, or generate unnecessary by-products. Therefore, during use, when the reaction environment and conditions are carefully observed to avoid such situations.
Third, because it is a disulfonic acid compound, acidic or strong. When operating, it is necessary to take appropriate protective measures, such as protective clothing, protective gloves and goggles, to prevent it from contacting the skin and eyes, causing burns and other hazards. In case of accidental contact, rinse with a large amount of water as soon as possible, and seek medical treatment according to the specific situation.
Fourth, when used in chemical reactions, the dosage needs to be precisely controlled. Due to its complex structure and numerous functional groups, the dosage is slightly deviated, which may have a significant impact on the reaction rate, product purity and yield. Therefore, before use, after rigorous experiments, determine the best dosage.