Question

Suggest a suitable oxidizing reagent for the following conversions:

• A. $MnO _2$ in (A)and $CrO { }_3$ (in glacial acetic acid) in (B)
• B. $CrO _3 \text{in}( A )$ and $MnO _2$ in (B)
• C. Both are correct
• D. Both are incorrect

Answer 1

Answer: (A)

In (A) the oxidation of allylic $1^{\circ}$ alcohol to aldehyde is carried out with $MnO _2$, while in (B) the oxidation of $2^{\circ}$ alcohol to ketone is carried out with $CrO _3+ CH _3 COOH$. So the answer is (a)