Ethyl Formate CAS 109-94-4

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Ethyl formate is an organic compound with the chemical formula C3H6O2 and CAS 109-94-4. It is a colorless liquid that is slightly soluble in water and soluble in most organic solvents such as benzene, ethanol, and ether. It is mainly used as a solvent for acetic acid or nitrocellulose fibers, as well as for fragrance synthesis and drug production. Used as a solvent for nitrocellulose, cellulose acetate, etc., as well as a fungicide, larvicide, and fumigant for food, cigarettes, grains, dried fruits, etc. As a essence, it can be used to blend the aroma of peach, banana, apple, apricot, pineapple, berry, etc. It can also be used as a spice of butter, brandy, liqueur, whisky, etc. It is also an intermediate in organic synthesis. For example, in the pharmaceutical industry, it is used for the production of anti-tumor drugs such as Fuxueding and vitamin B1; Acetylvinyl alcohol sodium can be obtained by condensation with acetone in a sodium methoxide xylene solution, and 2-mercaptoimidazole-4-carboxylic acid ethyl ester can be obtained by condensation with acetylglycinate ester and cyclization with potassium thiocyanate.

Ethyl formate (chemical formula C3H6O2) is an important organic compound with unique physical and chemical properties, and has a wide range of applications in multiple fields.

Application in the field of solvents

 

1. Solvent for nitrocellulose and cellulose acetate

It has good solubility for nitrocellulose and cellulose acetate, making it an excellent solvent for these two substances. In related industrial production, by utilizing their solubility characteristics, nitrocellulose and cellulose acetate can be dissolved and processed into various products, such as nitrocellulose paint, cellulose acetate film, etc.

2. Paint solvent
In the process of paint manufacturing, it can be used as a solvent for paint. It can dissolve resin, pigments and other components, making the paint have good dispersibility and stability. At the same time, the volatility is moderate and can quickly evaporate after painting, causing the paint film to dry quickly and improving construction efficiency.

3. Solvent substitutes and coating diluents
It can also be used as a solvent substitute and coating thinner. In some occasions with high environmental requirements, it can replace some traditional organic solvents to reduce environmental pollution. At the same time, it can dilute high viscosity coatings, making them easier to apply and improving the effectiveness of the coatings.

Application in the field of medicine

 

1. Raw materials for drug synthesis
It is an important raw material in the pharmaceutical industry, which can be used to synthesize various drugs. For example, it is used in the production of anti-tumor drugs such as Fuxueding and vitamin B. In the process of drug synthesis, it can react with other chemical substances to construct the skeleton of drug molecules, providing the basis for the activity of drugs.

2. Production of multiple drugs
It is also used in the production of drugs such as Houttuynia cordata, Tongjingning, Kangfulong, Thiamethoxacin, Thiamethoxacin, Lysimachia, and total synthetic scopolamine. These drugs play an important role in treating different diseases, such as anti infection, analgesic, anticonvulsant, etc. As a key raw material for drug production, its quality and purity directly affect the efficacy and safety of drugs.

Application in the field of spices

 

1. Blending essence
It has a variety of scents, such as qu flavor and pineapple flavor, and can be used to blend a variety of edible essence and tobacco essence. In the food industry, it can add unique flavor to peach, banana, apple, apricot, pineapple, berry and other fruit flavor essence to make food more delicious. In the tobacco industry, it can be used as a spice to improve the aroma and taste of tobacco, and enhance the quality of tobacco products.

2. Wine spices
Can be used as a spice for butter, brandy, sweet wine, whiskey, etc. It can endow these alcoholic beverages with unique aromas and flavors, increasing their layering and richness. In the production process of alcoholic beverages, adding an appropriate amount of ethyl formate can enhance the quality and market competitiveness of the wine.

3. Synthetic intermediate of essence
It is an important intermediate for essence synthesis. By reacting chemically with other compounds, various complex spice molecules can be synthesized, providing abundant raw materials for the spice industry. For example, it can participate in the synthesis of esters, alcohols and other compounds with special aroma to meet the needs of different essence products.

Application in the field of agriculture

 

1. Pesticide components
An ingredient that can be used as a pesticide to protect crops from pests and pathogens. It can serve as a solvent for insecticides and fungicides, helping to better disperse and penetrate the active ingredients of pesticides into crop tissues, and improving the effectiveness of pesticide control. At the same time, it may also have certain insecticidal or antibacterial activity, directly killing or inhibiting certain pests and pathogens.

2. Fungicides, larvicides, and fumigants
Can be used as a fungicide, larvicide, and fumigant for food, cigarettes, grains, dried fruits, etc. During food storage and processing, it can effectively kill microorganisms on the surface of food and extend its shelf life. For grains and dried fruits, it can control the larvae of pests and reduce pest losses. In tobacco processing, it can play a role in sterilization and fumigation, improving the quality of tobacco.

Applications in other fields

 

1. A good solvent for manufacturing nitrocellulose paint

It is a good solvent for manufacturing nitrocellulose paint. Nitrocellulose paint has the advantages of fast drying, high hardness, and good gloss, and is widely used in fields such as furniture, automobiles, and construction. It can dissolve nitrocellulose to form a uniform paint solution, which facilitates construction and the formation of high-quality paint films.

2. Spices and high boiling point solvents of nitrocellulose or cellulose acetate
Can be used as a fragrance and high boiling point solvent for nitrocellulose or cellulose acetate. High boiling point solvents play an important role in industrial production, as they can remain stable at higher temperatures and are not easily volatile. As a high boiling point solvent, it can meet the special needs of spice and cellulose processing, ensuring the quality and performance of products.

5. The main components of extracts such as jasmine flowers
Mainly used as the main ingredient in extracts such as jasmine flowers. Extract is a concentrated spice product with a strong aroma. Adding it can enhance the aroma intensity and stability of the extract, making it more widely used in fields such as spices and cosmetics.

 

6. Raw materials for varnish, ink, and paint remover
Can be used to make polishes, inks, and paint removers. In polishing agents, it can provide gloss and protection to the surface of objects. In ink manufacturing, the performance of ink can be improved. In paint removers, it can help dissolve and remove old paint layers, facilitating the recoating of objects.

7. Solvent for nitrocellulose, nitro spray paint, coatings, varnish, etc
Commonly used as a solvent for nitrocellulose, nitro spray paint, coatings, varnishes, etc. In the production and use process of these products, various components can be dissolved and dispersed, making the products have good performance and construction effect. For example, in nitro spray painting, the paint can be evenly sprayed onto the surface of the object, forming a smooth and beautiful paint film.

8. Solvent for spices and seasonings
Can be used as a solvent for spices and seasonings. It can help the effective ingredients in spices and seasonings dissolve and disperse better, improving the quality and stability of products. In food processing, using it as a solvent can ensure the uniformity of spices and seasonings, making the taste of food more consistent.

Synthetic ethyl formate:

It is obtained by the reaction of ethanol and phosgene. Phosgene and anhydrous ethanol are esterified to produce ethyl chloroformate, and then the finished product is obtained through purification processes such as impurity removal, dehydration, fractionation, etc.

The preparation method is to put anhydrous ethanol into a three necked flask, pass phosgene at about 5 ℃, heat it to 30 ℃ with a water bath after passing the calculated phosgene, keep it warm and stir it for 30min to make the reaction more complete, wash the product with ice water to separate the water layer, dry it, and get the finished product.

CH₃CH₂OH+COCl₂→ClCOOC₂H₅+HCl

Chemical properties: ethyl format is easy to hydrolyze, and it can also be hydrolyzed into formic acid and ethanol under the action of moisture in the air, thus becoming acidic. It can promote hydrolysis in the presence of acid and alkali. When heated to more than 300 ℃, it decomposes to produce ethylene, formic acid, carbon monoxide, carbon dioxide, hydrogen, water and formaldehyde. In the presence of ferric chloride, it is heated to 150 ℃ and decomposed to obtain ether and carbon monoxide. Heat to 150~300 ℃ in the presence of nickel to generate carbon monoxide, hydrogen, methane and unsaturated hydrocarbons. Alumina can also promote the pyrolysis of ethyl format. It reacts with phosphorus pentoxide to obtain dichloromethyl ethyl ether. In the presence of aluminum trichloride, it reacts with benzene to produce ethylbenzene, 1,3-diethylbenzene and 1,3,5-triethylbenzene. In the presence of boron trifluoride, the reaction with benzene mainly generates ethylbenzene. Reaction with acetone in ether solution in the presence of potassium hydroxide α  hydroxyisobutyric acid. Ethyl format can also react with Grignard reagent in ether solution to generate various corresponding compounds. For example, it reacts with tert butyl magnesium chloride at - 10~- 15 ℃ to produce trimethylethanol, and the by-product is trimethylacetaldehyde. Ethyl format can form complex with Lewis acid, tin tetrachloride, titanium tetrachloride, antimony pentachloride, aluminum trichloride, etc.

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