Bring the power of IUPAC naming to your desktop!

ACD/Name (Chemist Version) offers a standardized set of features for quick and simple generation of IUPAC names, and structures from names. It is a streamlined version of our popular ACD/Name software.

View a full description and pricing on our web store.

Specific Classes of Compounds

R-5.5.7 Sulfoxides, sulfones, and their analogues

Compounds with the general structures and are called generically "sulfoxides" and "sulfones", respectively. They may be named substitutively by citing the prefix name of the group followed by "sulfinyl" or "sulfonyl" and the name of the parent hydride corresponding to R. In functional class nomenclature, names are formed by citing the prefix names for the groups R and in alphabetical order as separate words followed by the class name "sulfoxide" or "sulfone", respectively . Selenium and tellurium analogues are named in the same way using prefix names such as "-seleninyl-" and "-selenonyl-", and class names such as "selenoxide" and "selenone".

Examples to R-5.5.7

When a group >SO or >SO2 is part of a ring system, the oxygen atom(s) can be expressed additively by citing the class name "oxide" after the name of the heterocycle, or substitutively by adding "oxo-" prefixes to the name of the heterocycle in which the sulfur atoms are designated as or .

Examples to R-5.5.7

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.

Published with permission of the IUPAC by Advanced Chemistry Development, Inc.,, +1(416)368-3435 tel, +1(416)368-5596 fax. For comments or suggestions please contact