A) \[(C{{H}_{3}})C=CHCHO\]
B) \[~{{(C{{H}_{3}})}_{2}}C=CHCOC{{H}_{3}}\]
C) \[C{{H}_{3}}CH=CHCHO\]
D) \[{{(C{{H}_{3}})}_{2}}CH(OH)\text{ }C{{H}_{2}}\text{ }COC{{H}_{3}}\]
Correct Answer: A
Solution :
When a mixture of acetone and acetaldehyde is treated with aqueous sodium hydroxide, aldol is formed which on heating gives \[\alpha ,\beta -\]unsaturated aldehyde as \[{{(C{{H}_{3}})}_{2}}\underset{\text{aldol}}{\mathop{\overset{OH}{\mathop{\overset{|}{\mathop{C}}\,}}\,-}}\,C{{H}_{2}}CHO\] \[\,\xrightarrow[-{{H}_{2}}o]{\Delta }{{(C{{H}_{3}})}_{2}}C=CHCHO\] This reaction is an example of crossed aldol condensation reaction.You need to login to perform this action.
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