Aldehydes Ketones Question 109

Question: Which of the following gives aldol condensation reaction

[CPMT 2001]

Options:

A) $ C_6H_5OH $

B) $ C_6H_5-\overset{O}{\mathop{\overset{||}{\mathop{C-}}}}C_6H_5 $

C) $ CH_3CH_2-\overset{O}{\mathop{\overset{||}{\mathop{C-}}}}CH_3 $

D) $ {{(CH_3)}_3}C-\overset{O}{\mathop{\overset{||}{\mathop{C-}}}}CH_3 $

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Answer:

Correct Answer: C

Solution:

Although both $ CH_3CH_2COCH_3 $ and $ {{(CH_3)}_3}CCOCH_3 $ contain a-hydrogen, yet $ {{(CH_3)}_3}CCOCH_3 $ does not undergo Aldol condensation due to steric hindrance.