Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub
Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?
Options:
Answer:
Solution:
Question Explanation:
Finding the incorrect organic transformation under specific reagents.
Concept:
Selective Reduction and Oxidation.
Solution:
Various reagents perform selective functional group interconversions.
Rosenmund Reduction (1): H2 / Pd−BaSO4 reduces acyl chlorides to aldehydes (Correct).
DIBAL-H (2 & 3): Diisobutylaluminum hydride reduces nitriles and esters to aldehydes at low temperature (Correct).
Strong Oxidation (4): Acidic sodium dichromate (Na2Cr2O7 /H2SO4 ) is a strong oxidizing agent that oxidizes primary alcohols (like benzyl alcohol) all the way to carboxylic acids (benzoic acid), not just aldehydes (Incorrect).
