Reaction of Grignard reagent, C₂H₅MgBr with C₈H₈O followed by hydrolysis gives compound "A" which reacts instantly with Lucas reagent to give compound B, C₁₀H₁₃Cl. The Compound B is :
Reaction of Grignard reagent, C₂H₅MgBr with C₈H₈O followed by hydrolysis gives compound "A" which reacts instantly with Lucas reagent to give compound B, C₁₀H₁₃Cl. The Compound B is :
Show Hint
- A
- B
- C
- D
The Correct Option is D
Solution and Explanation
Step 2: Reaction with $C_2H_5MgBr$: The ethyl group attacks the carbonyl carbon to form a tertiary alcohol, 2-phenylbutan-2-ol ($Ph-C(OH)(CH_3)CH_2CH_3$).
Step 3: **Lucas reagent** ($HCl + ZnCl_2$) reacts **instantly** only with tertiary alcohols.
Step 4: Replacement of $-OH$ with $-Cl$ gives $Ph-C(Cl)(CH_3)CH_2CH_3$. (Note: formula $C_{10}H_{13}Cl$ matches).
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