Question

Which of the following gives aldol con~ensation reaction?

Options

• C₆H₅OH

• $$\begin{array}{c}\phantom{}\mathrm{O}\\ \phantom{}||\\ \phantom{}\mathrm{C}{\phantom{A}}_6\mathrm{H}{\phantom{A}}_5-\mathrm{C}-\mathrm{C}{\phantom{A}}_6\mathrm{H}{\phantom{A}}_5\end{array}$$

• $$\begin{array}{c}\phantom{...}\mathrm{O}\\ \phantom{...}||\\ \phantom{}\mathrm{CH}{\phantom{A}}_3\mathrm{H}{\phantom{A}}_2-\mathrm{C}-\mathrm{CH}{\phantom{A}}_3\end{array}$$

• $$\begin{array}{c}\phantom{.....}\mathrm{O}\\ \phantom{.....}||\\ \phantom{}(\mathrm{CH}{\phantom{A}}_3){\phantom{A}}_3\mathrm{C}-\mathrm{C}-\mathrm{CH}{\phantom{A}}_3\end{array}$$

Answer 1

$$\begin{array}{c}\phantom{...}\mathrm{O}\\ \phantom{...}||\\ \phantom{}\mathrm{CH}{\phantom{A}}_3\mathrm{H}{\phantom{A}}_2-\mathrm{C}-\mathrm{CH}{\phantom{A}}_3\end{array}$$

Explanation:

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