Ncert Exercises & Solutions

11.24 Write the names of reagents and equations for the preparation of the following ethers by Williamson’s synthesis:

(i) 1-Propoxypropane

(ii) Ethoxybenzene

(iii) 2-Methoxy-2-methylpropane

(iv) 1-Methoxyethane

$C H_{3} C H_{2} C H O N a + C H_{3} C H_{2} C H_{2} B r \to C_{2} H_{5} C H_{2} - O - C H_{2} C_{2} H_{5} + N a B r$
$S o d i u m p r o p o x i d e 1 - B r o m o p r o p a n e 1 - P r o p o x y p r o p a n e$

(ii)

(iii) $C H_{3} C H_{3}$
$| |$
$C H_{3} — C — O N a + C H_{3} — B r \to C H_{3} — C — O C H_{3} + N a B r$
$| |$
$C H_{3} C H_{3}$
$S o d i u m 2 - m e t h y l B r o m o m e t h a n e 2 - m e t h o x y - 2 - m e t h l p r o p a n e$
$- 2 - p r o p o x i d e$

(iv) $C H_{3} C H_{2} O N a + C H_{3} C H_{3} - B r \to C H_{3} C H_{2} - O - C H_{3} + N a B r$
$S o d i u m e t h o x i d e B r o m o m e t h a n e 1 - M e t h o x y e t h a n e$

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