Trans Cinnamic Acid

Trans-cinnamic acid is trans-cinnamic acid, which has a wide range of main uses.
Trans-cinnamic acid is used in the field of medicine and has extraordinary functions. It can be used as a key raw material for many drugs, such as for the synthesis of drugs for the treatment of coronary heart disease, because it has the potential effect of regulating the cardiovascular system, or can improve blood circulation, which is helpful for alleviating heart disease. It also contributes to the research and development of antibacterial drugs. Its chemical structure makes it have certain antibacterial activity, which can help resist some bacteria from invading the human body and contribute to medical health.
In the fragrance industry, trans-cinnamic acid is also indispensable. It has a unique aroma and can be used to prepare a variety of fragrances. It can add a rich and warm fragrance to the fragrance. In the manufacture of perfumes, it can become a unique fragrance component, making the fragrance layer richer, more charming, lasting, and improving the quality and attractiveness of the product.
In the food industry, it can also be seen. It can be used as a food additive. First, it can prolong the shelf life of food and ensure food safety because of its certain anti-corrosion properties. Second, it can adjust the flavor of food, give food different flavor characteristics, improve the taste and quality of food, and meet the diverse needs of the public for food.
In the chemical industry, trans-cinnamic acid is an important organic synthetic raw material. It can participate in the synthesis of many organic compounds, prepare special polymer materials, etc., and greatly contribute to the development of materials science, promoting the continuous innovation of chemical products and wider application.

Trans-cinnamic acid is a member of organic compounds. Its physical properties are quite impressive, let me tell you in detail for you.
Looking at its shape, under room temperature and pressure, trans-cinnamic acid is white to light yellow crystalline, just like finely crushed jade, and like the first snow, delicate and pure. Touch it with your hand, the texture is solid and delicate.
As for the smell, it has a weak and unique fragrance, which seems to be elegant with floral fragrance, but also contains a little lipid fragrance. It is leisurely and refreshing, and the smell is refreshing.
When it comes to the melting point, it is about 133 degrees Celsius. When the temperature rises to this point, the originally solid trans-cinnamic acid melts like ice in spring and gradually turns into a flowing liquid, showing a different state.
In terms of boiling point, it is roughly around 300 degrees Celsius. In high temperature environments, it will change from liquid to gaseous state, curling up and rising like light smoke.
Solubility is also an important property. Trans-cinnamic acid is slightly soluble in water, like pearls in water, and is difficult to blend with water; however, it can readily dissolve in organic solvents such as ethanol, ether, and chloroform, just like fish entering the sea, blending seamlessly.
In addition, its density is about 1.245g/cm ³, which is slightly heavier than water. When placed in water, it slowly sinks, showing its own weight.
These are the physical properties of trans-cinnamic acid, which are of great significance in chemical research, industrial production and many other fields. It can be said to be widely used and of extraordinary value.

Trans-cinnamic acid is one of the organic compounds. It has special chemical properties.
Physically, trans-cinnamic acid is white to light yellow crystalline at room temperature, and has a faint aroma. The melting point is quite high, about 133 ° C, which makes it stable in the room temperature environment as a solid state. Its boiling point is also not low, reaching 300 ° C, indicating that a higher temperature is required to vaporize it. And slightly soluble in water, because of its molecular structure, the presence of benzene ring and unsaturated double bonds makes its polarity weak, and the force between water molecules is small, so it is insoluble; however, it can be soluble in organic solvents such as ethanol and ether. Due to the principle of similar phase dissolution, the force between the organic solvent and the trans-cinnamic acid molecule is compatible and miscible.
In terms of its chemical properties, the first person to bear the brunt is the carbon-carbon double bond in its molecule. This double bond has high reactivity and can undergo an addition reaction. In case of bromine water, the double bond can be opened, and the bromine atom is added to it to fade the bromine water. This is a typical addition reaction and can also be used to test the existence of carbon-carbon double bonds. And can participate in the polymerization reaction, the double bond interaction of many trans-cinnamic acid molecules can be polymerized into polymer compounds, which has great application potential in the field of material synthesis.
In addition, its carboxyl group is also active. It can neutralize with bases to generate corresponding carboxylic salts and water. It can undergo esterification reaction with alcohols under acid catalysis to form ester compounds. This reaction is often accompanied by the generation of fragrance substances, which has important uses in the fragrance industry.
In addition, due to the existence of benzene rings, substitution reactions on benzene rings can occur, such as halogenation, nitrification, etc. Under specific conditions, halogen atoms or nitro groups can replace hydrogen atoms on benzene rings, expanding the types of derived compounds and providing various paths for organic synthesis.
All these chemical properties make trans-cinnamic acid widely used in medicine, flavors, plastics, and other fields, and it is a crucial compound in the field of organic chemistry.

There are three methods for making Trans-cinnamic Acid.
One is Perkin's method. Benzaldehyde and acetic anhydride are used as the starting materials, followed by potassium acetate or sodium acetate. In a round-bottomed flask, a catalyst is added according to a certain amount of the two substances, and then placed in an oil bath, slowly heated to 150 to 180 degrees, which lasts for several hours, so that the condensation reaction is initiated. After the reaction is completed, wait for it to cool, pour it into cold water, adjust its pH with dilute acid, and make the precipitate precipitate. Compound with cold water and then recrystallize with ethanol to obtain the pure product. This is a classic method, the operation is relatively simple, but the reaction temperature is quite high, and it takes a long time. < Br >
The second is the styrene-carbon monoxide method. The styrene and carbon monoxide are used as raw materials, and a catalyst is added in a suitable solvent, such as palladium or nickel. In an autoclave, the pressure and temperature are controlled, the pressure is about several megapascals, and the temperature is about 100 to 30 degrees. The two are carbonylated to obtain Trans-cinnamic Acid. This method has high atomic utilization and milder conditions. However, it requires strict equipment and requires high pressure-resistant devices.
The third is the cinnamic aldehyde oxidation method. Take cinnamic aldehyde as the substrate and oxidize it with a suitable oxidant, such as potassium permanganate, potassium dichromate, etc., or use oxygen or air to add a catalyst. React at a certain temperature and pH environment. If oxygen is used as an oxidant, a metal catalyst is often required. Under mild conditions, the aldehyde group of cinnamic aldehyde can be oxidized to a carboxyl group to obtain Trans-cinnamic Acid. After separation and purification, the pure quality is also obtained. This way the raw materials are easy to obtain, but the oxidation process is not easy to control, and there are many side reactions.

In today's market, there are many transactions, various categories, and changeable prices. It is not easy to know the market price range of trans cinnamic acid, because it is affected by various factors.
The first to bear the brunt is the state of supply and demand. If the demand for this product is strong and the supply is limited, the price will rise; conversely, if the supply exceeds the demand, the price will fall. Furthermore, the origin is also the key. Produced in different places, the cost varies depending on the quality, and the price is different. Craftsmanship and quality also have a great impact. Those with excellent craftsmanship and high quality have higher prices.
In the current market, the price of trans-cinnamic acid is about [X1] yuan to [X2] yuan per kilogram. This is an approximate number, and the market conditions are changeable or change from time to time. Merchants often negotiate prices based on quantity, quality and current market conditions, so if you want to get an accurate price, you need to consult various merchants in person and compare and consider before you can get a suitable price. However, this range is only a temporary observation and cannot be relied on often. The market changes, so you can always pay attention.