Question

The correct structure of 2,6-Dimethyl-dec-4-ene is :

• A.
• B.
• C.
• D.

Answer 1

The Correct Option is B

To determine the correct structure of 2,6-Dimethyl-dec-4-ene, we need to follow the steps outlined below:

1. The parent chain is a decane indicating a 10-carbon continuous carbon chain.
2. The suffix "-ene" indicates the presence of a double bond, specifically located at the 4th carbon position (dec-4-ene).
3. The prefixes "2,6-Dimethyl" indicate that there are methyl groups (CH₃) attached at the 2nd and 6th carbon atoms of the main chain.

Putting these elements together: 

• Start by drawing the 10-carbon chain.
• Add the double bond between the 4th and 5th carbon atoms.
• Finally, attach a methyl group to the 2nd and 6th carbon atoms.

Below is the correct structural representation represented by one of the provided images:

This image correctly shows the double bond on the 4th carbon and methyl groups attached on the 2nd and 6th carbons, adhering to the IUPAC naming convention for 2,6-Dimethyl-dec-4-ene.