Organic Chem nomenclature

Organic Chem nomenclature - Chemistry 210 Introduction to...

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Chemistry 210 – Introduction to Organic Nomenclature Names are comprised of five main parts in specified order and punctuation. <configuration> <prefix group> <principal chain> <chain suffix> <group suffix> stereocenters methyl (Me) alk ane ol (R)- and (S)- ethyl (Et) meth propyl (Pr) eth ene al alkenes butyl (Bu) prop one (E)- and (Z)- but yne isopropyl (iPr) pent oic acid isobutyl (iBu) hex sec-butyl (sBu) tert-butyl (tBu) dec undec phenyl (Ph) dodec tridec halo tetradec fluoro chloro nonadec bromo eicoso iodo cycloalk alkoxy cycloprop hydroxy (HO-)* cyclobut methoxy (MeO-) cyclopent ethoxy (EtO-) benzene C(=O) oxo* *only when forced to be a prefix In general, the principal name is derived from the longest strand of carbon atoms bearing the greatest number of simple substituents. This creates two (and only two) ends. The atoms of the principal chain are numbered from one of the two ends: specifically, in order to give the first structural feature encountered the lowest number. The structural features are
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Organic Chem nomenclature - Chemistry 210 Introduction to...

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