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Carboxylic Acids and their Derivatives

Lactones Lactides, Lactams, and Lactims Rule C-474

474.1 - Lactides are intermolecular cyclic esters formed by self-esterification from two or more molecules of a hydroxy acid. They are named as heterocycles by the rules of Section B unless the hydroxy acid has a trivial name. In the latter case the syllables "-ic acid'' in that trivial name are replaced by "-ide'' and a prefix "di-" or "tri-", etc., is added to denote the number of molecules involved.

Examples to Rule C-474.1

See Recommendations'93 R-5.7.5

Lactones, Lactides, Lactams, and Lactims Rule C-475
Acyl Halides Rule C-481
Acid Anhydrides Rule C-491

This HTML reproduction of Sections A, B and C of IUPAC "Blue Book" is as close as possible to the published version [see Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F, and H, Pergamon Press, Oxford, 1979. Copyright 1979 IUPAC.] If you need to cite these rules please quote this reference as their source.

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