Question

The IUPAC name of the following compound is:

• A. 2-Carboxy-5-methoxycarbonylhexane
• B. Methyl-6-carboxy-2,5-dimethylhexanoate
• C. Methyl-5-carboxy-2-methylhexanoate
• D. 6-Methoxycarbonyl-2,5-dimethylhexanoic acid

Hint:

When naming compounds, identify the longest carbon chain, functional groups, and the positions of substituents for correct IUPAC naming.

Answer 1

The Correct Option is D

To determine the IUPAC name of the compound, follow these steps:

1. Identify the longest carbon chain: The compound is a derivative of hexane, indicating a 6-carbon parent chain.
2. Identify functional groups and substituents: The compound contains a methoxycarbonyl group (-COOCH₃) and a carboxylic acid group (-COOH).
3. Number the carbon chain: Start numbering from the end nearest to the highest priority functional group. The carboxylic acid group takes priority and is located at one end, making it carbon 1. The methoxycarbonyl group is at carbon 6, while the methyl groups are at carbons 2 and 5.
4. Construct the name: For the methyl groups at positions 2 and 5, and the methoxycarbonyl group at position 6, the compound is named as follows: 6-Methoxycarbonyl-2,5-dimethylhexanoic acid.

Thus, the IUPAC name of the compound is:
6-Methoxycarbonyl-2,5-dimethylhexanoic acid