Alcohols Phenols And Ethers Question 198

Question: From Williamson’s synthesis preparation of which of following is possible

Options:

A) Only symmetrical ethers

B) Only symmetrical ethers

C) Both types

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

$ CH_3CONa+Br-CH_3\to \underset{\begin{smallmatrix} \text{ Dimethyl ether} \\ \text{(symmetrical ether)} \end{smallmatrix}}{\mathop{CH_3-O-CH_3}}+NaBr $

$ CH_3-\underset{CH_3\ \ \ \ \ \ }{\overset{CH_3\ \ \ \ \ \ }{\mathop{\underset{|}{\overset{|}{\mathop{C}}}-{O^{-}}Na}}}+CH_3Br\to \underset{\begin{smallmatrix} \text{Methyl ter-butyl ether} \\ \text{(unsymmetrical ether)} \end{smallmatrix}}{\mathop{CH_3-\underset{CH_3\ \ \ \ \ \ \ }{\overset{CH_3\ \ \ \ \ \ \ }{\mathop{\underset{|}{\overset{|}{\mathop{C}}}-OCH_3}}}}}+NaBr $