Q. Identify the major products P, Q and R in the following sequence of reactions : $C_6H_6 + CH_3CH_2CH_2Cl \xrightarrow{Anhydrous\ AlCl_3} P \xrightarrow[(ii)\ H_3O^+/\Delta]{(i)\ O_2} Q + R$
A) P = $C_6H_5CH(CH_3)_2$, Q = $C_6H_5OH$, R = $CH_3CH(OH)CH_3$
B) P = $C_6H_5CH_2CH_2CH_3$, Q = $C_6H_5CHO$, R = $C_6H_5COOH$
C) P = $C_6H_5CH_2CH_2CH_3$, Q = $C_6H_5CHO$, R = $CH_3CH_2OH$
D) P = $C_6H_5CH(CH_3)_2$, Q = $C_6H_5OH$, R = $CH_3COCH_3$
Explanation
[Solution] The n-propyl carbocation rearranges to the isopropyl cation, giving cumene (P). Cumene oxidation to the hydroperoxide and acid hydrolysis give phenol (Q) and acetone (R). Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.