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Aldehydes, Ketones, and their Derivatives

Trivial Names Rule C-305

305.1 - When the corresponding monobasic acid has a trivial name, the name of the aldehyde may be formed from the trivial name of the acid by changing the ending "-ic acid" or "-oic acid" to "-aldehyde".

Examples to Rule C-305.1

305.2 - The following are examples of trivial names retained for aldehydes:

305.3 - The names of aldehydes corresponding to trivially named polybasic acids in which all of the carboxyl groups are changed to aldehyde groups are formed from the names of the acids by changing "-ic acid" to "-aldehyde".

Examples to Rule C-305.3

Exception:

Note: Since all the carboxyl groups of a polycarboxylic acid must be changed to aldehyde groups in order that the compound be named according to this Rule it is not necessary to introduce "di" or "tri" into such aldehyde names. (For aldehydic acids, see Rule C-415, and C-416.)

305.4 - The names of amino aldehydes are formed from the names of the corresponding amino-free aldehydes. They are not formed from the trivial names of the amino acids unless the latter end in "-ic acid".

Examples to Rule C-305.4

However:


(compare Rule C-305.3)

See Recommendations'93 R-5.6.1

Next:
Ketones Rule C-311, Rule C-312, Rule C-313, Rule C-314 , Rule C-315, Rule C-316, Rule C-317, Rule C-318
Ketenes Rule C-321
Acetals and Acylals Rule C-331, Rule C-332, Rule C-333
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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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