Chemical Formula | C3H2ClNS |
Molecular Weight | 119.57 g/mol |
Appearance | A colorless to pale yellow liquid |
Boiling Point | 172 - 173 °C |
Density | 1.38 g/cm³ |
Solubility In Water | Insoluble |
Solubility In Organic Solvents | Soluble in common organic solvents like ethanol, ether |
Odor | Characteristic, pungent odor |
Flash Point | 69 °C |
Stability | Stable under normal conditions but may react with strong oxidizing agents |
What are the main uses of 2-Chloro-1,3-thiazole?
2-Chloro-1,3-thiazole is an important category of organic compounds. It has a wide range of uses and plays a key role in many fields.
In the field of medicine, this compound is often used as a key intermediate. In the synthesis of medicine, its unique chemical structure is often relied on to produce drugs with specific pharmacological activities. For example, in the preparation of some antibacterial and antiviral drugs, 2-chloro-1,3-thiazole is an indispensable raw material. Its structure can participate in complex chemical reactions, and through ingenious design and synthesis steps, it can be converted into drug molecules with precise curative effects to help humans resist the attack of diseases.
In the field of pesticides, 2-chloro-1,3-thiazole also plays an important role. The research and development of pesticides is aimed at protecting crops from pests and diseases, and this compound can be used as a key component in the synthesis of high-efficiency pesticides. After rational chemical modification and formula adjustment, pesticide products with strong poisoning effect on pests or significant inhibitory effect on crop diseases can be prepared to escort agricultural harvests.
Furthermore, in the field of materials science, it has also emerged. With the advance of science and technology, the demand for special performance materials is increasing. 2-chloro-1,3-thiazole can participate in material synthesis reactions, giving materials unique electrical, optical or mechanical properties. For example, in the preparation of some new polymer materials, the introduction of this compound structural unit can optimize the material properties, expand its application scope, and find a place in the fields of electronic devices and optical instruments.
In summary, 2-chloro-1,3-thiazole is an important basic raw material in many fields such as medicine, pesticides, and materials science due to its unique chemical properties, and has made great contributions to the development of various fields.
What are the physical properties of 2-Chloro-1,3-thiazole?
2-Chloro-1,3-thiazole is one of the organic compounds. Its physical properties are worth exploring.
Looking at its properties, at room temperature, 2-chloro-1,3-thiazole is mostly colorless to light yellow liquid, clear and transparent, like a mirror, without obvious precipitation or suspended matter. This state is easy to flow, like smart water, which can be freely tossed around in a container.
When it comes to smell, this thing emits a special smell, smelling it, and has a pungent feeling. Although its smell is not as disgusting as rancid, it can also stimulate people's olfactory nerves and make people feel uncomfortable.
Let's talk about its melting point. At the melting point, 2-chloro-1,3-thiazole can gradually change from liquid to solid at a certain low temperature, just like water freezes when it is cold. This process requires specific low temperature conditions. When the boiling point, when the temperature rises to a corresponding height, it will change from liquid to gaseous. For example, when water boils into water vapor, its boiling point value varies slightly due to factors such as external pressure.
In terms of solubility, the solubility of 2-chloro-1,3-thiazole in water is poor. When the two meet, it is difficult to blend like oil and water, and they will mostly stand in layers. However, in the field of organic solvents, such as ethanol, ether, etc., it can dissolve well and blend with organic solvents, just like a fish entering water, free and harmonious.
Above the density, 2-chloro-1,3-thiazole is heavier than water. If it is placed in the same container as water, it will sink to the bottom like a stone sinking into the sea, showing its unique density characteristics.
These are all common physical properties of 2-chloro-1,3-thiazole. In-depth understanding of it is of vital significance in many fields such as chemical industry and scientific research.
What are the chemical properties of 2-Chloro-1,3-thiazole?
2-Chloro-1,3-thiazole is a unique organic compound. Its chemical properties are interesting and it has important uses in many fields.
The structure of this compound is particularly unique, and the presence of thiazole ring gives it specific chemical activity. The chlorine atom is attached to the thiazole ring, which has a great influence on its chemical properties. Because it contains nitrogen, sulfur heteroatoms, and chlorine substituents, it exhibits diverse reactivity.
2-chloro-1,3-thiazole has strong nucleophilic substitution ability. Chlorine atoms, as good leaving groups, are easily replaced by various nucleophiles. For example, when reacting with alcohol nucleophiles, chlorine atoms can be replaced by alkoxy groups to form corresponding ether derivatives. This reaction is often used to construct new carbon-oxygen bonds in organic synthesis, providing an important path for the synthesis of organic compounds with specific structures.
In addition, the nitrogen and sulfur atoms on the ring also have lone pair electrons, which can be used as nucleophilic check points to participate in the reaction. Under appropriate conditions, it can react with electrophilic reagents to form new chemical bonds. Such reactions can be used to modify thiazole rings and introduce different functional groups to expand their applications in pharmaceutical chemistry, materials science and other fields.
2-chloro-1,3-thiazole can also participate in metal-catalyzed reactions. Transition metal catalysts can promote coupling reactions with other organic halides or unsaturated hydrocarbons to build more complex organic molecular structures. Such reactions are of great significance in drug development and total synthesis of natural products, and can efficiently synthesize organic compounds with specific structures and functions.
However, the chemical properties of 2-chloro-1,3-thiazole are also significantly affected by reaction conditions. Temperature, solvent, type and amount of catalyst may all change the rate and selectivity of the reaction. Therefore, in practical applications, it is necessary to precisely adjust the reaction conditions to achieve efficient and highly selective synthesis of the target product.
What is the preparation method of 2-Chloro-1,3-thiazole?
For 2-chloro-1,3-thiazole, the preparation method is as follows.
First take the appropriate starting material, usually based on related compounds such as sulfur, nitrogen and halogens. If you want to make this 2-chloro-1,3-thiazole with a sulfur-containing heterocyclic precursor, you can get it through several steps.
One method is to use a sulfur-containing ring to first react with a halogenating reagent. Halogenating reagents, such as sulfoxide chloride, are heated to a certain temperature under suitable reaction conditions, such as in an inert solvent, so that a halogenation reaction occurs at a specific position on the ring, and chlorine atoms are introduced at the 2-position. This process requires attention to the control of reaction temperature and time. If the temperature is too high or the time is too long, it may cause side reactions and lead to impure products.
Or the ring of the precursor can be activated first, and a specific catalyst can be used to change the distribution of electron clouds on the ring and enhance its activity in reacting with halogenating agents. The catalyst used, or a metal salt, helps to guide the halogen atoms to the 2-position precisely.
After the reaction is completed, the product needs to be separated and purified. It is often done by distillation, recrystallization, etc. During distillation, the target product 2-chloro-1,3-thiazole is separated according to the difference in boiling point between the product and the impurity. A suitable solvent is selected for recrystallization, and the product is dissolved in it. After cooling and crystallization, a pure product is obtained. After these steps, a relatively pure 2-chloro-1,3-thiazole can be obtained.
What are the precautions for using 2-Chloro-1,3-thiazole?
2-Chloro-1,3-thiazole is one of the organic compounds. When using it, many precautions must be kept in mind.
First, this substance is toxic to a certain extent, and it must not be careless when exposed. During operation, it is necessary to wear suitable protective equipment, such as gloves, goggles and protective clothing, to avoid direct contact with the skin and eyes. If you accidentally touch it, rinse it with plenty of water as soon as possible, and seek medical attention if necessary.
Second, because of its active chemical properties and poor stability, when storing, choose a cool, dry and well-ventilated place. Keep away from fire and heat sources to avoid the risk of fire or explosion. At the same time, it should be stored separately from oxidizing agents, alkalis and other substances, and must not be mixed to prevent dangerous chemical reactions.
Third, during use, ventilation conditions must not be ignored. Be sure to operate in a fume hood to allow volatile gases to be discharged in time to avoid accumulation in a limited space, resulting in excessive concentration in the air and endangering personal safety.
Fourth, 2-chloro-1,3-thiazole is often used as a special reagent in chemical reactions. When used, the dosage and reaction conditions need to be precisely controlled. Reaction temperature, time and the proportion of reactants all have a great impact on the reaction results. If there is a slight difference, the reaction may fail or produce unexpected by-products.
Fifth, after use, the remaining materials and waste must not be discarded at will. It needs to be properly disposed of in accordance with relevant regulations to prevent pollution to the environment.
In short, when using 2-chloro-1,3-thiazole, you must always be cautious and strictly abide by the operating procedures, so as to ensure personal safety and the smooth progress of experiments or production.