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Question
Write preparation of ethyl cyanide from ethyl bromide.
Solution
When ethyl bromide is boiled with an alcoholic solution of potassium cyanide in aqueous ethanol, ethyl cyanide (Ethyl nitrile) is formed.
\[\ce{\underset{(Ethyl bromide)}{CH3 - CH2 - Br} + \underset{(alc.)}{KCN} ->[boil] \underset{(Ethyl cyanide)}{CH3 - CH2 - CN} + KBr}\]
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