Q49 / 150 · MHT CET 2026 (17 April Shift 2) · Chemistry
Identify the main product of following reaction
- A$\text{R} - \text{COOH}$
- B$\text{RCOR}'$
- Correct answerC$\text{RCHO}$
- D$\text{R CH}_2\text{ OH}$
Solution
DIBAL-H (Diisobutylaluminium hydride) is a selective reducing agent.
It reduces esters and nitriles to aldehydes.
The reaction proceeds as follows:
$\text{R}-\text{CO}-\text{O}-\text{R}' \xrightarrow[\text{2. H}_3\text{O}^+]{\text{1. DIBAL-H}} \text{R}-\text{CHO} + \text{R}'-\text{OH}$
Therefore, the main product is an aldehyde, $\text{RCHO}$.
Answer: $\text{RCHO}$
It reduces esters and nitriles to aldehydes.
The reaction proceeds as follows:
$\text{R}-\text{CO}-\text{O}-\text{R}' \xrightarrow[\text{2. H}_3\text{O}^+]{\text{1. DIBAL-H}} \text{R}-\text{CHO} + \text{R}'-\text{OH}$
Therefore, the main product is an aldehyde, $\text{RCHO}$.
Answer: $\text{RCHO}$
Hence, the correct answer is option: 'C'.