Chemistry - ALCOHOL & ETHER Question with Solution | TestHub
ChemistryALCOHOL & ETHERMETHOD OF PREPARATION OF ETHERS and EPOXIDES and POC of ETHERSMedium2 minQB
ChemistryMediumsingle choice
Identify A in the following chemical reaction
Options:
Answer:
C
Solution:
The starting compound is p-anisaldehyde (p-CH₃O-C₆H₄-CHO), which undergoes the Cannizzaro reaction with HCHO/NaOH, converting -CHO into -CH₂OH.
Thus, p-methoxybenzyl alcohol (p-CH₃O-C₆H₄-CH₂OH) is formed.
NaH converts -CH₂OH into an alkoxide, which reacts with C₂H₅Br (Williamson synthesis) to form -CH₂OC₂H₅.
On heating with HI, the aryl methyl ether (-OCH₃) is cleaved, giving a phenolic –OH group.
HI also cleaves the benzyl ethyl ether to form benzyl iodide (-CH₂I).
Therefore, the final product is p-hydroxybenzyl iodide, corresponding to Option (C).
Stream:JEESubject:ChemistryTopic:ALCOHOL & ETHERSubtopic:METHOD OF PREPARATION OF ETHERS and EPOXIDES and POC of ETHERS
⏱ 2mℹ️ Source: QB
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