Question

In Williamsons synthesis, ethoxyethane is prepared by:

• A. passing ethanol over heated alumina
• B. heating sodium ethoxide with ethyl bromide.
• C. treating ethyl alcohol with excess of $H_{2}SO_{4}$ at $430-440\, K$
• D. heating ethanol with dry $Ag_{2}O$

Answer 1

Answer: (B)

heating sodium ethoxide with ethyl bromide.

Answer 2

$\underset{\text{Sodium ethoxide}}{CH_3CH_2ONa} + \underset{\text{Bromo ethane}}{C_2H_5Br}{->[{\text{Williamsons}}][{\text{synthesis}}]}$
$\underset{\text{Ethoxyethane}}{CH_3CH_2OCH_2CH_3} + NaBr$