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Hydroxylamines and Related Compounds

Rule C-841 Hydroxylamines and their Derivatives

841.1 - Compounds RNH-OH are named by prefixing the name of the radical R to "hydroxylamine '' or, when another substituent is present having priority for citation as principal group, by attaching the prefix "hydroxyamino-" to the name of the parent compound RH.

Examples to Rule C-841.1

841.2 - Compounds are named as (a) alkoxyamino derivatives of the compound , (b) as N,O-substituted hydroxylamines, (c) as alkoxyamines (even if is hydrogen), or (d), if the group has a substituent with priority for citation as principal group, by use of the prefix "aminooxy-".

Examples to Rule C-841.2

841.3 - Acyl derivatives RCO-NH-OH and NH2-O-COR are named as N-hydroxy derivatives of amides and as O-acylhydroxylamines, respectively. Alternatively the former may be named as hydroxamic acids (see Rule C-451.3).

Examples to Rule C-841.3

(see also Rule C-451.3)

841.4 - Further substitution on the nitrogen or oxygen atoms of hydroxylamine is denoted by prefixes for the substituents, with O- and/or N-locants. Alternatively, compounds and may be named as derivatives of the alkoxyamine or of the hydroxamic acid (see Rule C-451.3).

Examples to Rule C-841.4

Note, however:

(see Rule C-841.3)

or N-Methylacetohydroxamic acid
(see Rule C-451.3)

See Recommendations'93 R-5.4.4

Hydroxylamines and Related Compounds C-842, C-843
Nitroso and Nitro Compounds C-851, C-852
Amine Radical Ions C-861


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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