ACD/Name

Principles of Organic Nomenclature

R-1.2 Nomenclature Operations

The operations described in this section all involve structural modification, and are classified first according to the type of modification, for example, "replacement"; and then according to the way in which the modification is expressed, for example, "by use of replacement infixes". The structures to which the various modifications are applied can be regarded as parent structures, and the modifications are expressed by affixes, i.e., infixes, prefixes, and suffixes. General principles involved in identifying a parent structure are described briefly in Section R-4 (Name Construction) and will be described more fully in a separate publication (Name Selection, in preparation).

Examples to R-1.2

Parent:

Heptane
Parent:

Cyclohexane
(Cyclohexane is chosen as parent because it bears the principal characteristic group -COOH, see R-4).

See Also:
R-1.0 Introduction
R-1.1 Bonding Number
R-1.3 Indicated Hydrogen

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This HTML reproduction is as close as possible to the published version [see IUPAC, Commission on Nomenclature of Organic Chemistry. A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993), 1993, Blackwell Scientific publications, Copyright 1993 IUPAC]. If you need to cite these rules please quote this reference as their source.

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