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Nomenclature of Halogen Derivative Compounds

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On this page we will discuss the nomenclature of halogen derivative compounds. We are assuming you have read our previous tutorials or you know the basic rules of nomenclature.

Halogen family

Fluorine, Chlorine, Bromine, Iodines are the members of halogen family.

Prefix Halo

Halo groups are always treated as substituents. Halo (fluoro, chloro, bromo, iodo) is prefixed to word root to indicate the presence of a halogen.

Nomenclature of haloalkanes

Nomenclature of haloalkanes : Chloroethane

More than one occurrence

Nomenclature of haloalkanes : 1,2-dichloroethane

1,2-Dichloroethane

Alphabetical order

If two different halo groups are present, they are named alphabetically.

Nomenclature of haloalkanes : 1-Bromo-2-fluoroethane

1-Bromo-2-fluoroethane

Multiple bond

Multiple bond is preferred while numbering a haloalkane.

Nomenclature of haloalkanes : 3-Fluroprop-1-ene

3-Fluoroprop-1-ene

Some other examples

Nomenclature of haloalkanes : 2-Bromo-3-methylbutane

2-Bromo-3-methylbutane

Nomenclature of haloalkanes : 1,1-Dibromo-2,2-dimethylpropane

1,1-Dibromo-2,2-dimethylpropane

Nomenclature of haloalkanes : 1-Bromo-4-fluoro-2-yne

1-Bromo-4-fluorobut-2-yne

Nomenclature of haloarenes

Nomenclature of haloarenes : Bromobenzene

Bromobenzene

Nomenclature of haloarenes : 1-Bromo-3-chlorobenzene

1-Bromo-3-chlorobenzene

Nomenclature of haloarenes : o-Chlorotoluene

1-Chloro-2-methylbenzene or

2-Chlorotoluene or

o-Chlorotoluene

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