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Question
How will you bring about the following conversion?
Ethanal to but-2-enal
Solution
On treatment with dilute alkali, ethanal produces 3-hydroxybutanal gives But-2-enal on heating.
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\[\begin{array}{cc}
\ce{C6H5CHO}\phantom{............}\\
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\end{array}\]
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\[\begin{array}{cc}
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\phantom{...............}|\\
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