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- Phenols are converted into alkyl aryl ethers by reaction in alkaline solution with alkyl halides. For the preparation of aryl methyl ethers, dimethyl sulphate is frequently used instead of more expensive methyl halides. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/cf5f13c8a11ec5e21633a759b4d3813b-.png /> The above reaction is familiar Williamson's synthesis which can even be used for the preparation of unsymmetrical ethers like alkyl aryl ethers. Aryl halides can't be used in the Williamsons synthesis because of their low reactivity towards nucleophilic substitution. For the preparation of any alkyl aryl ether, there can be two combinations of reactants, but one combination can usually be ruled out. <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/64a911607cf13900733f38ef2cde7d47-.png /> Ethyl bromide reacts with sodium methoxide to form ethyl methyl ether. It is an example of
Q.
Phenols are converted into alkyl aryl ethers by reaction in alkaline solution with alkyl halides. For the preparation of aryl methyl ethers, dimethyl sulphate is frequently used instead of more expensive methyl halides.
The above reaction is familiar Williamson's synthesis which can even be used for the preparation of unsymmetrical ethers like alkyl aryl ethers. Aryl halides can't be used in the Williamsons synthesis because of their low reactivity towards nucleophilic substitution. For the preparation of any alkyl aryl ether, there can be two combinations of reactants, but one combination can usually be ruled out.
Ethyl bromide reacts with sodium methoxide to form ethyl methyl ether. It is an example of
Solution: