By a proper choice of reagents, both symmetrical and unsymmetrical ethers can be prepared…
Chemistry · JEE Advanced · NTA Exams — Alcohols, Phenols and Ethers
By a proper choice of reagents, both symmetrical and unsymmetrical ethers can be prepared by Williamson synthesis which involves the reaction between an alkyl halide and an alkoxide ion. The reverse process involving the cleavage of ethers to give back the original alkyl halide and the alcohol can be carried out by heating the ether with HI at 373 K.
Allyl phenyl ether can be prepared by heating
- C6H5Br + CH2 = CH—CH2ONa
- CH2 = CHCH2 Br + C6H5ONa
- C6H5CH = CHBr + CH3ONa
- CH2 = CHBr + C6H5CH2ONa
Answer
(B) CH 2 = CHCH 2 Br + C 6 H 5 ONa
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