Question

Identify the suitable reagent for the following conversion.

Options

• (i) LiAlH₄, (ii) H⁺/H₂O

• (i) AlH(iBu)₂ (ii) H₂O

• (i) NaBH₄, (ii) H⁺/H₂О

• (i) H₂/Pd-BaSO₄

Answer 1

(i) AlH(iBu)₂ (ii) H₂O

Explanation:

\[\begin{array}{cc}
\ce{R - C - OR ->[AlH(iBu)2][(DIBAL-H)] R - C - H + ROH}\\
||\phantom{....................................}||\phantom{.............}\\
\ce{\underset{(Ester)}{O}}\phantom{............................}\ce{\underset{(Aldehyde)}{O}}\phantom{...........}
\end{array}\]