ethanoyl group

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ethanoyl group

A chemist draws the ethanoyl group on a whiteboard.

Definition
  1. Noun:
    • The organic group of acetic acid (CH3CO-): The "ethanoyl group" is a specific chemical structure consisting of a methyl group (CH₃) bonded to a carbonyl group (C=O). It is the acyl group derived from acetic acid.
Usage
  • The term "ethanoyl group" is used in the systematic nomenclature of organic chemistry to name compounds where this group is attached to another molecule, such as in esters or amides.
  • It is synonymous with the common name "acetyl group." In formal IUPAC nomenclature, "ethanoyl" is the preferred prefix.
Examples
  • Noun:
    • The compound is formed by the substitution of a hydrogen atom with an ethanoyl group.
    • In the molecule, the presence of the ethanoyl group is confirmed by infrared spectroscopy.
Advanced Usage
  • "Ethanoyl group introduction": Refers to a chemical reaction, like acetylation, where this group is added to a compound.
    • The acetylation process involves the introduction of an ethanoyl group onto the hydroxyl group of the alcohol.
Variants and Related Words
  • Acetyl group (n): The common, non-systematic name for the CH₃CO- group.
    • Acetyl-CoA is a crucial molecule in metabolism, containing an acetyl group.
  • Ethanoyl chloride (n): A specific compound (CH₃COCl) where the ethanoyl group is bonded to a chlorine atom.
  • Acetylation (n): The chemical process of introducing an ethanoyl/acetyl group into a molecule.
Synonyms
  • Acetyl group: The most common direct synonym in biochemical and common chemical contexts.
Related Phrases
  • Ethanoyl functional group: A phrase emphasizing its role as a functional group in organic molecules.
    • The ethanoyl functional group is characteristic of many esters.
ethanoyl group

A chemist draws the ethanoyl group on a whiteboard.

Noun
  1. the organic group of acetic acid (CH3CO-)

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