Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub
ChemistryCarboxylic acid and their DerivativesOTHER NAME REACTIONS (INCLUDING HVZ, PERKIN'S, CLAISEN ESTER, REFORMATSKY, HUNSDIECKER)Medium2 minQB
ChemistryMediummultiple choice
Considering the reaction sequence given below, the correct statement(s) is(are)
Options:(select one or more)
Answer:
B, C
Solution:
Propanoic acid undergoes HVZ reaction (Br₂/red P) to form α-bromo acid (P).
This reacts with potassium phthalimide followed by hydrolysis (Gabriel synthesis) to give α-amino acid Q (alanine).
P with excess NH₃ also gives Q after substitution, so (B) is correct.
Q being a 1° amine liberates N₂ with NaNO₂/HCl, so (C) is correct.
NaBH₄ does not reduce carboxylic acids and α-bromo acid is more acidic,
hence (A) and (D) are incorrect.
Stream:JEESubject:ChemistryTopic:Carboxylic acid and their DerivativesSubtopic:OTHER NAME REACTIONS (INCLUDING HVZ, PERKIN'S, CLAISEN ESTER, REFORMATSKY, HUNSDIECKER)
⏱ 2mℹ️ Source: QB
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