Question

Describe how the target molecule (butanone) can be synthesized in a high yield from butane.

Short answer

Reaction followed as:

Step-by-step solution

Formation of butan-2-one

The formation of butan-2-one from the butane is a multistep process.

Firstly, bromination is done followed by the reaction with the acetic acid in then on hydrolysis the alcohol formation takes place which leads to ketone on reduction.

Mechanism

Mechanism followed as:

1. Bromination occurs that the addition of bromide ion in presence of hv

2. Alkyl bromide reacts with carboxylic acid

3. Hydrolysis

4. Alcohol formation occurs

5. React with Na₂Cr₂O₇ followed by sulphuric acid

6. Ketone formation occurred