AP EAMCET · Chemistry · Alcohols Phenols and Ethers
What are ' \(\mathrm{X}\) ' and ' \(\mathrm{Y}\) ' respectively in the following reaction sequence?
\(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3 \stackrel{\mathrm{X}}{\longrightarrow} \mathrm{C}_6 \mathrm{H}_5 \mathrm{CO}_2 \mathrm{H} \stackrel{\mathrm{Y}}{\longrightarrow} \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OH}\)
- A \(\mathrm{X}=\mathrm{PCC}\);
\(\mathrm{Y}=\text { (i) } \quad \mathrm{B}_2 \mathrm{H}_6\)
(ii) \(\mathrm{H}_3 \mathrm{O}^{+}\) - B \(\mathrm{X}=\text { (i) } \mathrm{KMnO}_4 / \mathrm{OH}^{-} ; \quad \mathrm{Y}=\mathrm{NaBH}_4\)
(ii) \(\mathrm{H}_3 \mathrm{O}^{+}\) - C \(\mathrm{X}=\text { (i) } \mathrm{KMnO}_4 / \mathrm{OH}^{-}, \Delta ; \quad \mathrm{Y}=\text { (i) } \mathrm{B}_2 \mathrm{H}_6\)
(ii) \(\mathrm{H}_3 \mathrm{O}^{+}\)(ii) \(\mathrm{H}_3 \mathrm{O}^{+}\) - D \(\mathrm{X}=\mathrm{PCC} ; \quad \mathrm{Y}=\mathrm{LAH}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{X}=\text { (i) } \mathrm{KMnO}_4 / \mathrm{OH}^{-}, \Delta ; \quad \mathrm{Y}=\text { (i) } \mathrm{B}_2 \mathrm{H}_6\)
(ii) \(\mathrm{H}_3 \mathrm{O}^{+}\)(ii) \(\mathrm{H}_3 \mathrm{O}^{+}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{X}=\) (i) \(\mathrm{KMnO}_4 / \mathrm{OH}^{-}, \Delta\), (ii) \(\mathrm{H}_3 \mathrm{O}^{+}\)(for strong side - chain oxidation) \(\mathrm{Y}=\) (i) \(\mathrm{B}_2 \mathrm{H}_6\), (ii) \(\mathrm{H}_3 \mathrm{O}^{+}\)(for reduction to alcohols)
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