butanoyl chloride

The numbering sequence is shown below; the "oyl" suffix indicates an acid halide.

butanoic ethanoic anhydride

The numbering sequence is shown below; to name anhydrides, simply string the names of the parents together, and attach "anhydride".

butanamide

The numbering sequence is shown below; a simple unsubstituted amide is named using the "amide" suffix.

Nomenclature of Acyl Derivatives

For each of the compounds on the left, give the IUPAC name; pay particular attention to stereochemistry.

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click on the button to view the parent chain and the correct numbering sequence.