Prefixes halogen compounds

From the reaction products of the polyhalogenated ethanes and propanes shown in Table 13.7 we deduce that such halogenated compounds may react in aqueous solution by yet another type of reaction, so-called /3-elimination. In this reaction, in addition to the leaving group (L ), a proton is lost from an adjacent carbon atom (hence the prefix /3-) and a double bond is formed ... 

Halogen compounds should generally be named substitutively complete substitution can be indicated by the prefix per. 

Halogen Derivatives. Using substitutive nomenclature, names are formed by adding prefixes listed in Table 1.8 to the name of the parent compound. The prefix perhalo- implies the replacement of all hydrogen atoms by the particular halogen atoms. 

Halogens are named as substituents in the following way fluoro, chloro, bromo, and iodo. Essentially, we add the letter 0 at the end to say that they are substituents. If there are multiple substituents of the same kind (for example, if there are five chlorine atoms in fhe compound), we use fhe same prefixes fhaf we used earlier when classifying fhe number of double and friple bonds ... 

This section introduces the halogens into the mix and names compounds classified as alkyl halides. The prefixes used for the halogen are as follows F = fluoro-, Cl = chloro-, Br = bromo-, and I = iodo-. 

In the lUPAC system, alkyl halides are named as substituted alkanes. The prefixes for the halogens end with 0 (that is, fluoro, chloro, bromo, and iodo). Therefore, alkyl halides are also called haloalkanes. Notice that although a name must specify only one compound, a compound can have more than one name. 

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