how propyne prepared from alkylene dihalide
Answers
Dehydrohalogenation of alkyl dihalides
In this method of preparation, alkenes are made to react with a halogen. Due to this reaction, a substituted alkane is obtained. Alkanes formed are further passed through alcoholic KOH in order to form substituted alkenes. It is then made to react with sodium amide to form alkynes. This process is called dehydrohalogenation as hydrogen is eliminated along with a halogen in order obtain an alkyne.
Alkynes in organic chemistry are unsaturated hydrocarbons in which there exists, at least, a single, triple bond between the carbon-carbon atoms. Synthesis of Alkynes can be useful due to its antibacterial, antifungal and antiparasitic properties. The main reaction in the preparation of alkynes is that the ions elimination from molecules which result in the formation of pi bonds. Usually, one of two processes are involved in the manufacturing of alkynes: generation of the triple bond between carbon-carbon atoms or the number of molecules which contain a triple bond should be increased