1-Methyl-5-oxoproline(CAS: 72442-37-6)

1-Methyl-5-oxoproline is a white crystalline solid with a molecular weight of approximately 118.12 g/mol. It has a melting point of 203-204°C and a boiling point of around 350°C. Solubility in water is moderate, with a solubility of about 4 g/L at 25°C. Chemically, it is relatively stable under normal conditions but can undergo hydrolysis in the presence of water or strong acids.

1-Methyl-5-oxoproline can be synthesized through the condensation of methyl acrylate and oxoacetic acid. The reaction typically proceeds with the use of a base catalyst such as sodium hydride. The yield is generally around 70-75%, and the selectivity towards the desired product is high. This compound can also be prepared by the dehydration of 1-methyl-5-oxoproline-2-carboxylic acid.

1-Methyl-5-oxoproline is primarily used in the pharmaceutical industry as an intermediate for the synthesis of various drugs, particularly those related to amino acids and peptides. It also finds applications in the polymer industry for the development of certain polymeric materials. Additionally, it can be utilized in the production of sensors and as a functional group in organic synthesis.

1-Methyl-5-oxoproline should be handled with caution due to its physical and chemical properties. It is recommended to work in a fume hood and wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Ensure proper ventilation and avoid contact with skin and eyes. In case of a spill, use appropriate spill cleanup materials and consult the Safety Data Sheet (SDS) for further guidance.