Question

Which of the following gives aldol con~ensation reaction?

Options

• C₆H₅OH

• \[\begin{array}{cc}
  \phantom{}\ce{O}\\
  \phantom{}||\\
  \phantom{}\ce{C6H5 - C - C6H5}
  \end{array}\]

• \[\begin{array}{cc}
  \phantom{...}\ce{O}\\
  \phantom{...}||\\
  \phantom{}\ce{CH3H2 - C - CH3}
  \end{array}\]

• \[\begin{array}{cc}
  \phantom{.....}\ce{O}\\
  \phantom{.....}||\\
  \phantom{}\ce{(CH3)3C - C - CH3}
  \end{array}\]

Answer 1

\[\begin{array}{cc}
\phantom{...}\ce{O}\\
\phantom{...}||\\
\phantom{}\ce{CH3H2 - C - CH3}
\end{array}\]

Explanation:

Despite the presence of a – hydrogen in both CH₃CHCOCH₃ and (ΔH₃)₃ClOC₃, (CH₃) does not undergo Idol condensation due to steric hindrance.