How are anhydrides named?

Anhydrides are named through a specific nomenclature that involves their relationship to the corresponding acids. The correct naming conventions involve taking the name of the carboxylic acid from which the anhydride is derived, replacing the "-e" ending of the acid with "-oic," and adding "anhydride" at the end of the name. For example, if the anhydride is derived from acetic acid, it would be named acetic anhydride, where "acetic” comes from the original acid's name “acetic acid” by replacing the "-e" with "-oic," and then adding "anhydride."

The other naming conventions provided do not accurately reflect the standard IUPAC nomenclature for anhydrides. For instance, replacing "-e" with "-ic" would not be consistent with the structure of the anhydride, and there is no recognized naming format that involves replacing "-ic" with "-oate" in this context. Additionally, the mention of replacing "-ol" with "-yl" pertains to alcohols and is unrelated to the naming of anhydrides. Thus, the approach of using "-oic" and appending "anhydride" is the distinct and correct