Write the various steps involved in the following conversion :
`CH_(3)-underset(CH_(3))underset(|)CH-CH_(2)-CH_(2)-OHrarrCH_(3)-underset(CH_(3))underset(|)CH-CHO`

Explanation

To convert the compound \( CH_3-CH(CH_3)-CH_2-CH_2-OH \) to \( CH_3-CH(CH_3)-CHO \), we will follow a series of steps involving oxidation, amide formation, and further oxidation. Here is the step-by-step breakdown of the conversion:

### Step 1: Oxidation of Alcohol to Carboxylic Acid
1. **React the alcohol with an oxidizing agent**: Use \( K_2Cr_2O_7 \) in acidic conditions (e.g., dilute sulfuric acid).
- **Reaction**:
\[ CH_3-CH(CH_3)-CH_2-CH_2-OH \xrightarrow{K_2Cr_2O_7/H^+} CH_3-CH(CH_3)-CH_2-COOH \]
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