What makes alkyne C2H2 nucleophile?

1 Answer

  • Bobby
    Lv 7
    2 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

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