Draw the major product of this reaction. Ignore inorganic byproducts. 1. DIBAL-H 2. H3O+ N Q

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# Reaction Transformation: Reduction of a Nitrile

## Reaction Overview
The task is to determine the major product of the given chemical reaction by reducing a nitrile using DiBAL-H and H₃O⁺. Inorganic byproducts should be ignored.

## Structure of Starting Material
The starting material is an aliphatic nitrile. The structure contains a carbon chain with a nitrile group (C≡N) at the terminal end.

## Reaction Conditions
1. **DiBAL-H (Diisobutylaluminum hydride):** A reducing agent used to selectively reduce nitriles to aldehydes.
2. **H₃O⁺ (Acidic Workup):** Used to complete the reduction and stabilize the aldehyde product.

### Reaction Mechanism
1. **Reduction Step:** DiBAL-H partially reduces the nitrile group to an imine intermediate, which upon acidic workup is hydrolyzed to form the corresponding aldehyde.
2. **Acidic Workup:** The imine is protonated and hydrolyzed to yield the aldehyde.

## Expected Major Product
The major product will be an aldehyde corresponding to the original nitrile group. The triple bond to nitrogen is converted to a double-bonded oxygen, maintaining the rest of the carbon skeleton.

**Note:** The diagram placeholder indicates where the structure of the aldehyde should be drawn, showcasing the transformation from the triple-bonded nitrile to the double-bonded aldehyde.

This reaction highlights the selective reduction capability of DiBAL-H in organic synthesis.
Transcribed Image Text:# Reaction Transformation: Reduction of a Nitrile ## Reaction Overview The task is to determine the major product of the given chemical reaction by reducing a nitrile using DiBAL-H and H₃O⁺. Inorganic byproducts should be ignored. ## Structure of Starting Material The starting material is an aliphatic nitrile. The structure contains a carbon chain with a nitrile group (C≡N) at the terminal end. ## Reaction Conditions 1. **DiBAL-H (Diisobutylaluminum hydride):** A reducing agent used to selectively reduce nitriles to aldehydes. 2. **H₃O⁺ (Acidic Workup):** Used to complete the reduction and stabilize the aldehyde product. ### Reaction Mechanism 1. **Reduction Step:** DiBAL-H partially reduces the nitrile group to an imine intermediate, which upon acidic workup is hydrolyzed to form the corresponding aldehyde. 2. **Acidic Workup:** The imine is protonated and hydrolyzed to yield the aldehyde. ## Expected Major Product The major product will be an aldehyde corresponding to the original nitrile group. The triple bond to nitrogen is converted to a double-bonded oxygen, maintaining the rest of the carbon skeleton. **Note:** The diagram placeholder indicates where the structure of the aldehyde should be drawn, showcasing the transformation from the triple-bonded nitrile to the double-bonded aldehyde. This reaction highlights the selective reduction capability of DiBAL-H in organic synthesis.
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