What are the physical properties of 1- (phenylthio) -4- (trifluoromethyl) benzene?
(1) The properties of matter
Fu 1- (silicon-based) -4- (triethoxy) silicon are organic silicon compounds and the like. Its unique properties, both the stability of inorganic silicon and the activity of organic groups, are widely used in various fields, and its physical properties cover the following ends.
(2) Morphological characteristics
Under normal conditions, this compound is mostly a colorless and transparent liquid, clear and clear, with no visible impurities. Its texture is uniform and its fluidity is quite good, just like a mountain spring, smooth and unobstructed. Looking at its appearance, it is like pure water, but it contains different chemical mysteries.
(3) Melting boiling point
In terms of melting boiling point, the melting point of this substance is low, and when it encounters a little warmth, it is easy to turn from solid to liquid, just like winter snow, and it melts when it touches the warm sun. And its boiling point is not very high, and it can be converted into gaseous state under suitable temperature conditions. Such melting boiling point characteristics make it easy to control the transformation of its shape during specific process operations, which can facilitate many industrial production and experimental studies.
(4) Solubility
1- (silicon-based) -4- (triethoxy) Silicon exhibits good solubility in organic solvents. Common organic solvents such as ethanol and acetone can be mutually soluble with it, just like a fish entering water, fusing seamlessly. This solubility allows it to be fully mixed with other organic ingredients and evenly dispersed when applied in coatings, adhesives, etc., thereby improving the performance and quality of the product.
(5) Density
Its density is moderate, slightly heavier than that of water. When placed in water, it can be seen that it sinks slowly, but not quickly, but melts into the water in a relatively stable manner. This density characteristic also affects its mixing and delamination with other substances in practical applications.
(6) Volatility
This compound has a certain degree of volatility and can slowly evaporate into the air in an open environment. This volatility needs to be paid attention to in some situations. On the one hand, moderate volatilization can enable rapid drying and molding of coatings or adhesives; on the other hand, if it evaporates too quickly or in a closed space, it may also cause safety and environmental issues.
What are the chemical properties of 1- (phenylthio) -4- (trifluoromethyl) benzene?
One of (silicon-based), with high resistance and high resistance. It is not easy to dissolve like ordinary substances. When encountering acid, it can also be invaded, and fluoric acid can be destroyed. This is because its atoms are dense, and its chemical properties are lazy.
(trimethylsilyl) of silicon is unique. First, it is fat-soluble and can make the substance easily soluble in lipid. This is because of the non-conductivity of trimethylsilyl, and the close miscibility of lipid. Second, its space barrier is large, which can be used in the reaction of the reaction of the group, and the reaction of the group is less. For example, in some synthetic compounds, this property can be used to protect a specific functional group, and then remove the trimethylsilyl group after the reaction is completed.
Furthermore, trimethylsilyl silicon can affect the sub-cloud of the molecule. Due to the slightly different properties of silicon, trimethylsilyl groups can be used in molecules, which can segregate the sub-cloud and change the reaction activity of molecules. In some nuclear substitution or substitution reactions, this effect is especially effective, enabling the reaction to proceed in a specific direction.
, (silicon-based) (trimethylsilicon-based) silicon, each due to its unique characteristics, exhibits unique properties, and has important uses in materials science, synthesis, and other fields.
What are the main uses of 1- (phenylthio) -4- (trifluoromethyl) benzene?
1 - (silicon) - 4 - (triethyl) silicon is mainly used in the field of industrial technology.
This material is of great use. First, in metallurgy, it is widely used. Because it can improve the hardness of the metal, such as the hardness of the metal, improve its resistance, etc. In different metals, adding 1 - (silicon) - 4 - (triethyl) silicon can make the finished product of the metal more sophisticated and more suitable for the use of harsh conditions.
Furthermore, in the chemical industry, this is also an important raw material. With its starting materials, it can be used to synthesize many compounds with special properties. These compounds can be used in chemical products such as manufacturing materials and adhesives to improve their adhesion, weather resistance and other characteristics.
In the case of sub-manufacturing, 1- (silicon-based) -4- (triethyl) silicon also has undeniable functions. In the semi-manufacturing process, it can be used as a raw material, and in the case of semi-fabricated components, it can help improve the performance and quality of components, etc., providing a foundation for the efficient production of sub-products.
In addition, in the research and exploration of materials science, 1- (silicon-based) -4- (triethyl) silicon is also often used as a research image. By conducting in-depth research, researchers can develop new functional materials to meet the urgent needs of high-performance materials. Therefore, 1- (silicon-based) -4- (triethyl) silicon plays an important role in many fields, promoting the development of various industries.
What are the synthesis methods of 1- (phenylthio) -4- (trifluoromethyl) benzene?
To prepare 1- (silicon-based) -4- (trifluoromethyl) silicon, there are many ways to synthesize it.
First, halogenated silanes can be substituted with reagents containing trifluoromethyl. Halogen activity in halogenated silanes is quite good. When encountering nucleophiles containing trifluoromethyl, such as trifluoromethyl lithium (CF < Li) or trifluoromethyl copper (CF < Cu), the halogen atom can be replaced by trifluoromethyl, and the target product is obtained. This reaction condition needs to be strictly controlled, and the reaction temperature and solvent selection are all related to the reaction effect. Under low temperature conditions, the reaction can be more selective, and ether solvents such as tetrahydrofuran (THF) are often preferred because of their good solubility and stability to metal reagents.
Second, hydrosilylation is also feasible. Using silane containing hydrogen silica bonds and olefins or alkynes containing trifluoromethyl as raw materials, under the action of catalysts, hydrogen silica bonds are added to carbon-carbon unsaturated bonds. Noble metal catalysts such as platinum (Pt), rhodium (Rh) and other complexes have excellent catalytic effect on this reaction. When reacting, pay attention to the proportion of substrates and the amount of catalyst to prevent side reactions from breeding and resulting in poor product purity.
Furthermore, it can be achieved by the coupling reaction of organometallic reagents and silicon compounds. For example, Grignard reagent (RMgX) or organozinc reagent (RZnX) reacts with halogenated silane, if the R group is a trifluoromethyl-related group, 1 - (silicon) -4 - (trifluoromethyl) silicon can also be prepared under appropriate reaction conditions. In this process, an anhydrous and oxygen-free environment is necessary to avoid the reaction of metal reagents with water and oxygen and deactivate.
In addition, silane and trifluoromethylation reagents are synthesized in a specific reaction system through a free radical reaction mechanism. In this way, the initiator is needed to induce the generation of free radicals, and the activity of free radicals is used to promote the reaction. However, the selectivity of free radical reaction is difficult to control, and the reaction parameters need to be fine-tuned to achieve the ideal synthesis effect.
What are the precautions for storing and transporting 1- (phenylthio) -4- (trifluoromethyl) benzene?
1 - (silicon-based) -4 - (triethyl) silicon should be paid attention to when it is stored in the environment.
First, this substance often has a certain chemical activity, and it may react violently in contact with water or tide. Silyl Triethyl, it is easy to decompose in contact with water, and it is easy to release flammable or corrosive. Therefore, if it is stored, it must be kept dry, avoiding water sources and tidal places, and it is also protected from rain and dew on the way.
Second, its degree of sensitivity is sensitive. High environment, or cause molecular activity to increase, accelerate the reaction, and even cause combustion, explosion and other emotions.
In addition, if necessary, it needs to be lowered or protected.
In addition, this or multiple substances can be biochemically reversed. If it is not stored, it must not be stored in a room with oxidizing or original substances, so that it is impossible to react. On the way, it is also necessary to avoid the same removal of this dangerous item.
In addition, because it may be toxic to a certain extent, the operator should take preventive measures. Such as wearing gas masks, gloves, protective clothing, etc., to prevent inhalation and contact and cause damage to the body. The storage place is also well connected to dissipate harmful substances that may leak.
Therefore, the storage of 1- (silicon) -4- (triethyl) silicon should follow the relevant rules and pay attention to the above-mentioned measures in order to ensure human safety and avoid accidents.