Carboxylic Acids and their Derivatives
Lactones Lactides, Lactams, and Lactims Rule C-471 471.1 - Compounds that may be considered to be derived by intramolecular loss of water from a hydroxyl and a carboxyl group of a hydroxy
acid, leading to formation of a cyclic ester, are called "lactones".
See Recommendations'93 R-5.7.5
Lactones, Lactides, Lactams, and Lactims Rule C-472, Rule C-473, Rule C-474, Rule C-475
Acyl Halides Rule C-481
Acid Anhydrides Rule C-491
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