Halogenation

<p>In <a href="/facts/Chemistry/SrNqkGVm">chemistry</a>, halogenation is a <a href="/facts/Chemical_reaction/GpqWlKrz">chemical reaction</a> which introduces one or more <a href="/facts/Halogen/YeFgWHeA">halogens</a> into a <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a>. <a href="/facts/Halide/ujYu8kGD">Halide</a>-containing compounds are pervasive, making this type of transformation important, e.g. in the production of <a href="/facts/Polymers/eF32E50K">polymers</a>, <a href="/facts/Drugs/FFFUI9n4">drugs</a>. This kind of conversion is in fact so common that a comprehensive overview is challenging. This article mainly deals with halogenation using elemental halogens (<a href="/facts/Fluorine/YUV0Fb8m">F2</a>, <a href="/facts/Chlorine/y27UwYBM">Cl2</a>, <a href="/facts/Bromine/oLfj3C7D">Br2</a>, <a href="/facts/Iodine/JlfMecMf">I2</a>). Halides are also commonly introduced using salts of the halides and halogen acids. Many specialized <a href="/facts/Reagent/c3GLInCu">reagents</a> exist for introducing halogens into diverse <a href="/facts/Substrate_(chemistry)/6MnaV19h">substrates</a>, e.g. <a href="/facts/Thionyl_chloride/nWwvNtvd">thionyl chloride</a>.
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Halogenation open-in-new

Halogenation