Name | 4 - Chlorothiazole |
Chemical Formula | C3H2ClNS |
Molar Mass | 119.578 g/mol |
Appearance | Colorless to light - yellow liquid |
Boiling Point | 194 - 195 °C |
Melting Point | N/A |
Density | 1.386 g/cm³ |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in many organic solvents like ethanol, ether |
Odor | Pungent odor |
Flash Point | 81 °C |
What are the main uses of 4-Chlorothiazole?
4-Chlorothiazole is also an organic compound. It has a wide range of uses in the field of medicine and is a key intermediate for the synthesis of many drugs. The special structure of the Gainthiazole ring gives it a variety of biological activities, which can be used as a basis to prepare antibacterial, antiviral, anti-tumor and other drugs. For example, some antibacterial drugs, with the structure of 4-chlorothiazole, can effectively inhibit the growth and reproduction of bacteria and achieve the purpose of treating infections.
In the field of pesticides, it also has important applications. Pesticides made from it have the characteristics of high efficiency, low toxicity and environmental protection, can kill a variety of pests, and are less harmful to the environment. For example, some new insecticides, with the activity of 4-chlorothiazole, precisely act on specific physiological parts of pests and interfere with their normal physiological activities, so as to achieve pest control.
In the field of materials science, 4-chlorothiazole can participate in the synthesis of special materials. Due to its unique chemical properties, it can endow materials with special properties, such as improved material stability and heat resistance. In the synthesis of new polymer materials, the addition of monomers containing 4-chlorothiazole structure can optimize the mechanical properties and chemical stability of materials and expand the application range of materials.
In summary, 4-chlorothiazole is an important basic raw material in the fields of medicine, pesticides and materials science, which has greatly contributed to the development of various fields.
What are the physical properties of 4-Chlorothiazole?
4-Chlorothiazole is a kind of organic compound. Its physical properties are unique. Under normal conditions, it is mostly colorless to light yellow liquid. It is clear and transparent when viewed, and has a special smell. You can feel it when you smell it.
When talking about the boiling point, it is about a certain value range. This property allows it to change from liquid to gaseous in a specific temperature environment. The exact value of the boiling point varies depending on the environmental conditions involved and the accuracy of measurement, but it is roughly within a certain range.
The melting point of 4-chlorothiazole is also an important physical property. The performance of the melting point is related to the temperature node between the solid state and the liquid state. At a certain low temperature, the substance will solidify from liquid to solid state.
Furthermore, its density is also fixed. The density reflects the mass of the substance per unit volume. This value is of great significance for understanding its ups and downs in different media and the proportion of space it occupies when mixed with other substances.
In terms of solubility, 4-chlorothiazole often exhibits good solubility in organic solvents and can be soluble with many organic solvents, such as common ethanol, ether, etc. However, its solubility in water is relatively limited and can only be dissolved a little. This difference in solubility is due to the difference in its molecular structure and the forces between water molecules and organic solvent molecules.
In addition, the vapor pressure of 4-chlorothiazole is also a key physical property. The level of vapor pressure is closely related to the difficulty of volatilization of the substance. The higher the vapor pressure, the greater the tendency of volatilization to the gas phase under the same conditions. This characteristic needs to be carefully considered during the storage, transportation and use of the substance.
Is 4-Chlorothiazole chemically stable?
The chemical properties of 4-chlorothiazole are still stable under specific circumstances. This substance contains the structure of chlorine atoms and thiazole rings. Although chlorine atoms have certain activity, the conjugate system of thiazole rings restricts their activity.
Under normal temperature and pressure, 4-chlorothiazole can maintain its own structural stability without the action of special chemical reagents. In case of strong oxidants, chlorine atoms may be oxidized, resulting in structural changes.
And if there are nucleophiles, because chlorine atoms have a certain electrophilicity, they are vulnerable to attack by nucleophiles, and nucleophilic substitution reactions occur, so that the chlorine atoms on the thiazole ring are replaced by other groups.
Under high temperature or specific catalytic conditions, its thiazole ring may also open, triggering a series of complex chemical reactions. However, in general experimental and storage environments, properly stored to avoid contact with special substances such as strong oxidants and nucleophiles, the chemical properties of 4-chlorothiazole can remain relatively stable and will not easily undergo significant chemical changes.
What are the synthesis methods of 4-Chlorothiazole?
4-Chlorothiazole, as well as organic compounds, is widely used in various fields such as medicine and pesticides. There are several methods for its synthesis.
First, using 2-amino-4-chlorothiazole as the starting material, 4-chlorothiazole can be prepared by diazotization and deamination. In this way, 2-amino-4-chlorothiazole is first reacted with sodium nitrite in an acidic medium to form diazole salts. The diazole salt is unstable, and then the amino group is removed after appropriate treatment, and then converted into 4-chlorothiazole. This process requires attention to the control of the reaction conditions. Factors such as acidity and temperature have a great influence on the reaction. If the acidity is too strong or the temperature is too high, side reactions are easy to occur, which affects the purity and yield of the product.
Second, 4-chlorothiazole can be obtained by cyclization of thioformamide and haloacetone. The two interact to form a cyclic structure in the presence of suitable solvents and catalysts. During this period, the halogen atom of haloacetone interacts with the sulfur atom and nitrogen atom of thioformamide to form a thiazole ring. The choice of solvent is crucial, and different solvents have different effects on the reaction rate and selectivity. And the type and dosage of the catalyst also need to be precisely controlled to promote the efficient reaction and improve the yield of the product.
Third, 4-chloro-2-methylthiothiazole is prepared by desulfurization reaction with 4-chloro-2-methylthiothiazole as raw material. In this method, the methylthio group in 4-chloro-2-methylthiothiazole molecule is removed by specific reagents and conditions to achieve the synthesis of the target product. This reaction has strict requirements on the activity of the reagent and the reaction conditions. It is necessary to ensure the smooth progress of the desulfurization reaction and avoid damage to the structure of the thiazole ring in order to obtain higher quality 4-chlorothiazole products.
All this synthesis method has advantages and disadvantages. In practical applications, the appropriate synthesis path should be carefully selected according to the availability of raw materials, cost considerations, product purity requirements and many other factors to achieve the best synthesis effect.
What is the price range of 4-Chlorothiazole in the market?
4-Chlorothiazole is in the market, and its price range is difficult to determine quickly. The market situation is ever-changing, and the price varies according to time, place, and supply and demand conditions. Looking at the legacy of "Tiangong Kaiwu", although the book does not specify the price of this product, it can be deduced.
In the past, the price was often determined by the distance of the production place and the difficulty of production. The production of 4-chlorothiazole requires specific methods and materials. If its preparation is complex and the materials used are rare, the price must be expensive.
In today's market, its price is also affected by many factors. From the perspective of production and supply, if there are many producers and sufficient supply, the price may be flat; if there are few production places and insufficient output, the price will rise. And on the side of purchase, if there are many users and the industry demand is strong, the price can also increase.
In terms of common market conditions, the price of 4-chlorothiazole per gram may be in the range of tens to hundreds of yuan. If it is a high-purity, refined product, the price can reach more than 1,000 yuan per gram. However, this is only an approximate estimate. The actual price may vary greatly depending on the specific quality, quantity and time and place of transaction. To determine the price, it is necessary to carefully observe the market situation and consult industry experts or merchants.