Second, it should identify and locate any functional groups present in the compound. First, it should indicate how the carbon atoms of a given compound are bonded together in a characteristic lattice of chains and rings. ![]() The IUPAC Systematic Approach to NomenclatureĪ rational nomenclature system should do at least two things. Such common names often have their origin in the history of the science and the natural sources of specific compounds, but the relationship of these names to each other is arbitrary, and no rational or systematic principles underly their assignments. Just as each distinct compound has a unique molecular structure which can be designated by a structural formula, each compound must be given a characteristic and unique name.Īs organic chemistry grew and developed, many compounds were given trivial names, which are now commonly used and recognized. The increasingly large number of organic compounds identified with each passing day, together with the fact that many of these compounds are isomers of other compounds, requires that a systematic nomenclature system be developed.
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