Question

write note on Hell-Volhard-Zelinsky reaction
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Answer 1

AnSweR:

$\longrightarrow$This reaction involves alpha bromination of carboxylic acids.

$\longrightarrow$Carboxylic acids react with chlorine or bromine in presence of small amount of red phosphorous to give alpha halo carboxylic acids.

$\longrightarrow$CH3−CH2−COOHBr2/P CH3−CHBr−COOHBr2/P CH3−CBr2−COOHBr2/P No further reaction.

Answer 2

Explanation:

$<p style ="Color:cyan; font-family: cursive; background:black;font size25px;"> Carboxalic acid having an Alpha hydrogen are generated at the Alpha position on treatment with chlorine or bromine in the presence of a small amount of red phosphorus to give alpha hello oxalic acid this reaction is known as Hell volhard zelinsky reaction$