ORGANIC CHEMISTRY
DIVISION
COMMISSION ON NOMENCLATURE OF ORGANIC CHEMISTRY
Extension and revision of the von Baeyer
system for naming polycyclic compounds (including bicyclic compounds)
(IUPAC Recommendations 1999)
Prepared for publication by G.P.
Moss
World
Wide Web version prepared by G. P. Moss
Abstract: These recommendations document the von
Baeyer system for naming polycyclic ring systems described in Rules
A-31, A-32 and B-14 of the Nomenclature of Organic Chemistry, Sections
A, B, C, D, E, F and H, 1979 and R-2.4.2 of A Guide to IUPAC Nomenclature
of Organic Compounds, 1993 and extend the system to cover more complex
cases. It provides guidance on the naming of ring systems which previously
the rules did not cover. The methods is to identify the main ring and
main bridge which provide the basic bicyclic system and to number these
atoms. Then all further bridges, whether or not they include additional
atoms, are identified by indicating not only the number of atoms but
also the two atoms to which the bridge is attached. The final name also
indicated the number of rings and the total number of skeletal atoms
in the ring systems. Heteroatoms, unsaturation and substituents are
indicated in the usual way.
World
Wide Web version prepared by G. P. Moss
http://www.chem.qmw.ac.uk/iupac/vonBaeyer/