Carboxylic Acids Question 39
Question: Which reaction is used for the preparation of $ \alpha - $ Bromoacetic acid-
[MP PET 2004; MP PET/PMT 1998]
Options:
A) Kolbe’s Reaction
B) Reimer-Tiemann Reaction
C) Hell volhard Zelinsky Reaction
D) Perkin’s Reation
Show Answer
Answer:
Correct Answer: C
Solution:
When $ Cl_2 $ or $ Br_2 $ is react with carboxylic acid in the presence of red phosphorus then a-hydrogen of carboxylic acid is replaced by $ Cl_2 $ or $ Br_2 $
$ \underset{Aceticacid}{\mathop{CH_3COOH}}\xrightarrow{Br_2}\underset{\alpha -bromoaceticacid}{\mathop{CH_2BrCOOH}} $ This reaction is known as Hell Volhard Zelinsky reaction.
BETA
