What is propynyl?

Propynyl is a functional group made up of a triple bond between two carbon atoms. Its chemical formula is C₃H. It is also known as ethynyl or acetylene, and it can be found in various organic compounds such as alkynes. Propynyl is a highly reactive group due to the presence of the triple bond, and it can participate in many chemical reactions such as addition reactions and oxidation reactions. Propynyl has many industrial and commercial applications, including welding and cutting torches, fuel for rocket engines, and production of various organic compounds such as plastics and pharmaceuticals.