CAS 118800-15-0

2-Pyrrolidinone,5-ethynyl-1-methyl-(9CI)

Description:

2-Pyrrolidinone, 5-ethynyl-1-methyl- (9CI), with the CAS number 118800-15-0, is a chemical compound characterized by its pyrrolidinone structure, which features a five-membered lactam ring. This compound contains an ethynyl group at the 5-position and a methyl group at the 1-position of the pyrrolidinone ring. It is typically a colorless to pale yellow liquid or solid, depending on its purity and specific conditions. The presence of the ethynyl group imparts unique reactivity, making it useful in various organic synthesis applications, particularly in the development of pharmaceuticals and agrochemicals. The compound is polar and may exhibit solubility in organic solvents, while its lactam structure can influence its hydrogen bonding capabilities. Safety data should be consulted for handling, as it may pose health risks if inhaled or ingested. Overall, 2-Pyrrolidinone, 5-ethynyl-1-methyl- is a versatile intermediate in chemical synthesis with potential applications in multiple fields.

Formula: C₇H₉NO