Chemical Formula | C7H9FN2 |
Molar Mass | 140.16 g/mol |
Solubility In Water | Limited solubility, organic solvents may be more suitable |
Stability | Can be reactive, stability depends on storage conditions |
Chemical Formula | C7H9FN2 |
Molecular Weight | 140.16 |
Appearance | Solid (usually white or off - white powder) |
Melting Point | Typically in a certain range (e.g., around 70 - 80°C, actual may vary) |
Solubility In Water | Low solubility |
Solubility In Organic Solvents | Soluble in some organic solvents like ethanol, dichloromethane |
Density | Approximate value based on similar compounds, around 1.2 - 1.3 g/cm³ |
Pka | Data on acid - base properties (pKa values) related to the hydrazine group exist but vary depending on environment |
Odor | May have a faint, characteristic odor |
Stability | Can be relatively stable under normal storage conditions but may react with strong oxidizing agents |
What are the main uses of 2-Fluorobenzylhydrazine?
2-Fluorobenzylhydrazine is also an organic chemical. It has a wide range of uses and is often a key raw material for the creation of new drugs in the field of medicinal chemistry. Pharmaceutical developers use its unique chemical structure to explore new drugs, hoping that it can show special efficacy in the treatment of diseases.
In the field of materials science, 2-fluorobenzylhydrazine is also promising. Or can participate in the synthesis of materials with specific functions, such as the preparation of materials with special optical and electrical properties, to meet the needs of electronic devices, optical instruments and other fields.
Furthermore, in the study and practice of organic synthetic chemistry, 2-fluorobenzylhydrazine is often used as an important intermediate. Chemists can use it to carry out a variety of chemical reactions, build more complex organic molecular structures, expand the types and properties of organic compounds, and then promote the development and progress of organic synthetic chemistry.
In short, 2-fluorobenzylhydrazine has important uses in many fields such as medicine, materials, and organic synthesis due to its unique chemical properties. It provides key support for related scientific research and industrial production, and helps the continuous innovation and development of science and technology.
What are the physical properties of 2-Fluorobenzylhydrazine?
2-Fluorobenzylhydrazine is also an organic compound. Its physical properties are quite impressive, so let me tell them one by one.
Looking at its appearance, at room temperature, it is mostly white to off-white crystalline powder. The state of this color is its initial appearance in common environments.
As for the melting point, it is about [specific melting point range]. The melting point is the critical temperature at which a substance changes from a solid state to a liquid state. This value is crucial for judging its purity and the phase change under specific conditions.
Solubility is also one of its important physical properties. 2-Fluorobenzylhydrazine exhibits a certain solubility in organic solvents such as ethanol and dichloromethane. In ethanol, it can be moderately dissolved to form a uniform solution; in dichloromethane, it can also have good dispersion. This property makes it possible to separate, purify and participate in chemical reactions by selecting suitable solvents in many fields such as organic synthesis. In water, its solubility is relatively limited, only slightly soluble, which is due to the influence of hydrophobic groups in its molecular structure.
Furthermore, its density also has characteristics, about [specific density value]. The property of density is related to the space occupied in practical applications and the proportional relationship when mixed with other substances. It needs to be accurately considered in chemical production, experimental operation and other scenarios.
In addition, the vapor pressure of 2-fluorobenzylhydrazine is lower at room temperature, which means that under normal conditions, it has a weak tendency to evaporate from solid or liquid to gaseous state, is relatively stable, and is not easy to be lost due to volatilization or cause safety hazards.
In summary, the physical properties of 2-fluorobenzylhydrazine, such as appearance, melting point, solubility, density, and vapor pressure, are interrelated and together determine its behavior and use in different environments and application scenarios.
What is the chemistry of 2-Fluorobenzylhydrazine?
2-Fluorobenzylhydrazine, this is an organic compound. Its chemical properties are unique, rich in hydrazine groups and fluorobenzyl groups, which give the compound a different reactivity.
In terms of its reactivity, hydrazine groups have strong nucleophilic properties. In many chemical reactions, such as when they meet aldodes and ketones, they are prone to nucleophilic addition and produce hydrazone products. This reaction is often used in organic synthesis to construct nitrogen-containing heterocycles or to prepare compounds with special structures. Due to the presence of lone pair electrons on the nitrogen atom, hydrazine groups can complex with metal ions to form metal complexes, which have potential uses in the fields of materials science and catalysis.
The fluorobenzyl part has high electronegativity of fluorine atoms, which changes the electron cloud density of benzyl groups and affects the polarity and reactivity of molecules. Its ortho-fluorine atoms will produce ortho-effects, which affect the reaction check point and reaction rate in some reactions. At the same time, the presence of benzyl makes the molecule have a certain lipid solubility, which affects its solubility and partition coefficient in different solvents, which is of great significance to its pharmacokinetic properties such as absorption and distribution in drug development.
2-fluorobenzylhydrazine may also participate in oxidation-reduction reactions. The nitrogen in the hydrazine group is in a lower oxidation state and has reducing properties. It can be oxidized by appropriate oxidants to generate various products, which provides an effective path for the synthesis of complex nitrogen-containing compounds.
However, the chemical properties of 2-fluorobenzylhydrazine require caution when storing and using it. Due to its certain reactivity, improper contact with substances may cause adverse reactions, so it should be stored in a suitable environment to avoid contact with strong oxidants, acids and other substances.
What is 2-Fluorobenzylhydrazine synthesis method?
The synthesis of 2-fluorobenzyl hydrazine is an important topic in the field of organic synthesis. There are several common ways to synthesize this compound.
One can start from 2-fluorobenzyl halide. First, the nucleophilic substitution reaction occurs between 2-fluorobenzyl halide and hydrazine hydrate. In this reaction, the halogen atom has good departure, and the nitrogen atom of hydrazine hydrate is rich in electrons and has strong nucleophilicity. When the two meet, the halogen atom leaves, and the nitrogen atom attacks benzyl carbon, resulting in 2-fluorobenzyl hydrazine. During the reaction, attention should be paid to the choice of reaction temperature and solvent. If the temperature is too high, side reactions may occur; if the Commonly used solvents, such as ethanol and dimethyl sulfoxide, can promote the reaction because of their good solubility to the reactants and stable reaction intermediates.
Second, 2-fluorobenzoic acid is used as the starting material. First, 2-fluorobenzoic acid is converted into the corresponding acid chloride, and the commonly used chlorinating reagents such as thionyl chloride can be reacted to obtain 2-fluorobenzoyl chloride. Then, 2-fluorobenzoyl chloride reacts with hydrazide hydrate to form 2-fluorobenzoyl hydrazide. Finally, by means of reduction, such as the use of sodium borohydride and other reducing agents, the carbonyl group of 2-fluorobenzoyl hydrazide is reduced to methylene to obtain 2-fluorobenzyl hydrazine. This path step is slightly complicated, but the reaction conditions of each step are relatively mild, and the purity of the product is relatively easy to control.
Third, if 2-fluorobenzyl alcohol is used as the starting material. 2-fluorobenzyl alcohol can be oxidized to 2-fluorobenzaldehyde, which is commonly used as an oxidizing agent such as manganese dioxide. 2-fluorobenzaldehyde is then condensed with hydrazine hydrate to form a hydrazone intermediate. Subsequently, this intermediate is further reduced, such as by hydroreduction of palladium carbon, to obtain 2-fluorobenzylhydrazine. This approach requires attention to the selectivity of the oxidation step to avoid excessive oxidation to carboxylic acids.
The above methods have their own advantages and disadvantages. In actual synthesis, when considering many factors such as raw material availability, cost, reaction conditions and product purity, the optimal method is selected.
What 2-Fluorobenzylhydrazine need to pay attention to when storing and using
2-Fluorobenzylhydrazine is a chemical substance. When storing and using it, you should pay great attention to the following:
First, it is related to storage. This substance should be stored in a cool, dry and well-ventilated place. Do not be near fire or heat sources to prevent danger. Because of its flammability, it may be at risk of combustion and explosion in case of open flames or hot topics. It must be stored separately from oxidants and acids, and must not be mixed. The cover is dangerous because the substance is in contact with oxidants or reacts violently; contact with acids may also cause chemical reactions and destroy its stability. At the same time, the storage place should be prepared with suitable materials to contain leaks in case of leakage, which can be dealt with in time to avoid the expansion of harm.
Second, about the use. The user must strictly follow the operating procedures. It is recommended that the operator wear a self-priming filter gas mask (half mask), which can effectively prevent the inhalation of dust from the substance and protect the respiratory system. Wear chemical safety glasses to avoid damage to the eyes. Wear anti-poison penetrating overalls to prevent skin contact; wear rubber gloves to further strengthen hand protection. During use, ensure that the workplace is well ventilated and reduce the concentration of the substance in the air. Be careful when operating to avoid contact with the skin and eyes. In case of accidental contact, rinse immediately with plenty of flowing water. In case of inhalation, it is necessary to quickly leave the scene to a fresh place to keep the respiratory tract unobstructed. If breathing difficulties, oxygen should be administered in time, artificial respiration should be performed if necessary, and medical attention should be sought as soon as possible. After use, the place of use should be thoroughly cleaned up, and the remaining substances and waste should be properly disposed of. Do not discard them at will to avoid polluting the environment or causing other hazards.