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There are fundamentally two types of nomenclature: (1) substitutive nomenclature, the principal nomenclature used in organic chemistry and the basis of IUPAC preferred organic names; and (2) additive nomenclature used in inorganic chemistry for generating coordination names.
Nomenclature of Organic Chemistry. IUPAC Recommendations and Preferred Names 2013. Prepared for publication by Henri A. Favre and Warren H. Powell, Royal Society of Chemistry, ISBN 978-0-85404-182-4. School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
The H-W system combines the ‘a’ prefixes of Table 5 in decreasing order of seniority with endings, in the H-W system called stems, that Table 5: Selected ‘a’ prefixes for H -W and replacement systems
The Rules for Organic Chemistry were first issued in Geneva in 1892. They were followed by the Liége Rules in 1930 and the IUPAC rules in 1957 (Sections A and B), 1969 (Sections A, B, and C) codified as the Blue Book, and 1979 (Sections A, B, C, D, E, F, and H).
NOMENCLATURE IN ORGANIC CHEMISTRY 1. INTRODUCTION It is important that organic compounds are corrrectly and unambiguously named so that there can be absolutely no confusion about what compounds are actually being reported or described. There have been many conventions for naming organic compounds - some have
Nomenclature, just like chemistry, is a subject that develops continually. New classes of compound require new adaptations of nomenclature and IUPAC tries to provide these.
• Subtractive suffixes and/or prefixes: a set of letters or characters indicating the absence of particular atoms or groups from a parent molecule. • Descriptors (structural, geometric, stereochemical, etc.).
