Ethynyl group

In organic chemistry, an ethynyl group is a functional group with the formula −C≡CH. It is the acetylene molecule with one fewer hydrogen atom.

  • Ethynyl group (HC≡C–), also designated as acetylenic group (from acetylene), and referred to in IUPAC chemical nomenclature as -yne suffix. Also sometimes designed as ethinyl in compounds (ethinylestradiol, ethisterone (ethinyltestosterone)). See main page alkynes.


See also

  • Ethynylation
  • Ethynyl radical
  • Propynyl ( H3C–C≡C–R, 1-propynyl group; or HC≡C–CH2–R, 2-propynyl group, Propargyl)
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