Product Name: Factory Supply Triethyl Orthoacetate cas 78 - 39 - 7 With Best Price. Triethyl orthoacetate, with the chemical formula C₈H₁₈O₃ and CAS number 78 - 39 - 7, is a colorless to pale - yellow liquid. It has a molecular weight of approximately 162.22 g/mol. This product is soluble in common organic solvents such as ethanol, ether, and benzene, but is immiscible with water. The boiling point of triethyl orthoacetate is around 142 - 143 °C, and its density is about 0.92 g/cm³ at 25 °C. It has a slightly fruity odor.
Triethyl orthoacetate has a wide range of applications in different industries. In the field of organic synthesis, it is a very important intermediate. It can be used in the synthesis of various heterocyclic compounds, which are the key components in many pharmaceutical and agrochemical products. For example, it can participate in the synthesis of pyrimidines, which are widely used in the manufacture of antibacterial and antiviral drugs. In the perfume industry, triethyl orthoacetate can be used as a fragrance ingredient or as a modifier to enhance the stability and diffusion of other fragrances. It can also be used in the synthesis of some flavoring agents, adding a special fruity note to food products.
When using triethyl orthoacetate, it is necessary to follow strict safety procedures. First of all, it should be stored in a cool, dry, and well - ventilated place, away from sources of ignition and oxidizing agents. When handling the product, appropriate personal protective equipment such as gloves, goggles, and a lab coat should be worn. In organic synthesis reactions, triethyl orthoacetate is usually added drop - wise to the reaction system under stirring. The reaction temperature and time need to be carefully controlled according to the specific reaction requirements. Generally, the reaction is carried out under reflux conditions in an organic solvent. After the reaction is completed, the product is usually isolated by distillation or extraction methods.
Case 1: Pharmaceutical Synthesis. In the synthesis of a certain antiviral drug, triethyl orthoacetate is used as a key intermediate. First, it reacts with a specific amine compound in the presence of a catalyst to form an imine intermediate. Then, through a series of cyclization and functional group transformation reactions, the final antiviral drug molecule is obtained. The use of triethyl orthoacetate in this process significantly simplifies the synthesis route and improves the yield of the target product.
Case 2: Perfume Production. A well - known perfume brand uses triethyl orthoacetate as a fragrance modifier in one of its new perfume formulations. By adding a small amount of triethyl orthoacetate, the perfume becomes more long - lasting and the fragrance becomes more intense and harmonious. Consumers have given positive feedback on the improved perfume, and the sales volume has increased significantly.
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