HVZ stands for Hell-Volhards-Zelinsky. It is the process of creating halogenated organic acids by treating the acid with bromine in the presence of phosphorus or phosphorus tribromide.
What Is Hvz Reaction?
When carboxylic acids react with chlorine or bromine in the presence of red phosohorous, the alpha-hydrogen atoms are replaced by halogen atoms. It is called Hell-Volhard-Zelinsky(H.V.Z) reaction.
Ex:-
acetic acid reacts with chlorine in presence of red phosphorus to form chloro acetic acid, dichloro acetic acid or trichloro acetic acid depending on the quantity of chlorine reacting.
Ex:-
acetic acid reacts with chlorine in presence of red phosphorus to form chloro acetic acid, dichloro acetic acid or trichloro acetic acid depending on the quantity of chlorine reacting.