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Question: Answered & Verified by Expert
In the given reaction
R− CH 2 −COOH → Red  P+Br 2 A → NH 3 Alanine
The name of I st reaction and group R is -
ChemistryCarboxylic Acid DerivativesJEE Main
Options:
  • A Hell Vohlard Zelinsky reaction, - C6H5
  • B Hell Vohlard Zelinsky reaction, - CH3
  • C Schimdt Reaction,
  • D Claisen Schimdt reaction, - CH3
Solution:
2236 Upvotes Verified Answer
The correct answer is: Hell Vohlard Zelinsky reaction, - CH3
Alanine is

and product in given reaction is

A→R−CH−COOH           ​    |              Br
So R=-CH3

I st reaction is Hell Vohlard Zelinsky reaction.

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