Diethyl Acetamidomalonate, with the CAS number 1068 - 90 - 2, is a chemical compound widely used in the chemical industry. Its molecular formula is C9H15NO5, and the molecular weight is approximately 217.22 g/mol. It appears as a white to off - white crystalline powder. The melting point of this compound is in the range of 92 - 95°C. It has a certain solubility in common organic solvents such as ethanol, acetone, and chloroform, but has relatively low solubility in water. The compound should be stored in a cool, dry place away from light and sources of ignition. It is stable under normal storage conditions but may decompose when exposed to strong acids, strong bases, or high temperatures.
1. Pharmaceutical Industry: Diethyl Acetamidomalonate serves as an important intermediate in the synthesis of various pharmaceutical products. It can be used in the manufacture of antibiotics, anti - inflammatory drugs, and certain types of anti - cancer agents. By participating in different chemical reactions, it can introduce specific functional groups into the molecular structure of the final drug, enhancing the drug's effectiveness and selectivity.
2. Agricultural Chemicals: It is also used in the production of pesticides and herbicides. By modifying the structure of the compound through chemical reactions, it can be transformed into active ingredients that can effectively control pests and weeds, improving crop yields and quality.
3. Organic Synthesis: In the field of organic synthesis, Diethyl Acetamidomalonate is a valuable building block. It can be used to construct complex organic molecules through a series of reactions such as ester hydrolysis, amidation, and condensation reactions.
1. Safety Precautions: When using Diethyl Acetamidomalonate, appropriate personal protective equipment should be worn, including gloves, safety goggles, and a laboratory coat. Avoid inhalation, ingestion, and skin contact. In case of contact, immediately rinse the affected area with plenty of water and seek medical attention if necessary.
2. Handling in the Laboratory: In a laboratory setting, measure the required amount of Diethyl Acetamidomalonate accurately using appropriate weighing equipment. When adding it to a reaction system, do it slowly to avoid splashing. Stir the reaction mixture gently to ensure uniform mixing.
3. Reaction Conditions: The reaction conditions should be carefully controlled according to the specific reaction requirements. Factors such as temperature, reaction time, and the ratio of reactants need to be optimized to obtain the best reaction results.
1. Pharmaceutical Synthesis Case: A pharmaceutical company was developing a new anti - inflammatory drug. Diethyl Acetamidomalonate was used as a key intermediate. First, it was reacted with a specific amine compound under mild basic conditions. The reaction was carried out at a temperature of 50°C for 24 hours. After purification by column chromatography, an intermediate product with a yield of 85% was obtained. This intermediate was further reacted with other reagents to form the final anti - inflammatory drug. Clinical trials showed that this drug had significant anti - inflammatory effects and few side effects.
2. Agricultural Chemical Synthesis Case: An agricultural chemical manufacturer used Diethyl Acetamidomalonate to synthesize a new herbicide. By reacting it with a halogen - containing compound in the presence of a catalyst, a new active ingredient was obtained. The reaction was optimized to increase the yield. After field tests, this herbicide showed excellent weed - control ability and had little impact on the growth of crops.
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