What makes alkyne C2H2 nucleophile?
- BobbyLv 72 months ago
The clouds of electrons surrounding the sigma bond makes an alkyne an electron-rich molecule.
They are therefore nucleophiles that react with electrophiles.
Alkynes undergo electrophilic addition reactions because of their weak pi bonds.
For example bromine adds to ethyne in two stages - first to give trans-1,2-dibromoethene by antarafacial addition, and finally to give 1,1,2,2-tetrabromoethane