How will you convert propene to 2, 3-dimethylbutane?

Explanation

To convert propene to 2,3-dimethylbutane, we can follow these steps:

### Step 1: Hydrohalogenation of Propene
- Start with propene (C3H6), which has the structure CH3-CH=CH2.
- Treat propene with HBr. The double bond in propene will react with HBr, leading to the formation of a carbocation.
- The H+ from HBr will add to one of the carbon atoms of the double bond, and the Br- will add to the other carbon. Since a secondary carbocation is more stable than a primary one, the H+ will add to the terminal carbon (CH2), resulting in the formation of a secondary carbocation at the middle carbon (C2).

**Resulting Structure**: CH3-CH(Br)-CH3 (2-bromopropane)
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