Alkyne Reactions and Properties
Właściwości alkinów include both physical and chemical characteristics. Alkynes undergo various reactions:
- Combustion
- Addition reactions H2,Cl2,HCl,etc.
- Decolorization of bromine water
Example: Addition of chlorine to ethyne:
HC≡CH + Cl2 → CHCl=CHCl
Reakcja Kuczerowa Kucherovreaction is a significant reaction involving water addition to alkynes:
Definition: The Kucherov reaction is the addition of water to alkynes, catalyzed by mercuryII salts.
For alkynes with two carbons, this produces an aldehyde. For alkynes with more than two carbons, it yields a ketone.
Example:
HC≡CH + H2O → CH3CHO acetaldehyde
CH3-C≡CH + H2O → CH3COCH3 acetone
Alkynes also undergo polymerization and, in the case of acetylene, trimerization to form benzene.