Ethynyl group

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Ethynyl group
General structural formula of the ethynyl group
General structure of an ethynyl group, which is marked blue here . The radical R represents an aliphatic , cyclic or aromatic radical or a hydrogen atom ( acetylene ).
Ethinyl group ( marked blue ) as part of a large molecule (drug ethinylestradiol ).

The ethynyl group (H – C≡C–) - also obsolete ethynyl group - is a functional group in organic chemistry and is an ethyne molecule from which a hydrogen atom has been removed. The introduction of an ethynyl group into organic chemical compounds by means of acetylidene ( Nef reaction ) is called ethynylation . The ethynylation of ketones produces geminal ethynyl alcohols.

The German name acetylenyl group is no longer in use today due to the Anglicisation of the technical language and can only be found in old descriptions of experiments.

See also

Individual evidence

  1. ↑ European Pharmacopoeia , 6th edition, Deutscher Apotheker Verlag, Stuttgart 2008, ISBN 978-3-7692-3962-1 , pp. 2503-2504.
  2. ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 2: Cm-G. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-04512-9 , p. 1200.