Which is NOT an acceptable name for the following molecule?

• A. 4-amineheptane
• B. N-propylpropan-1-amine
• C. N-propylaminopropane
• D. Dipropylamine

Answer: (A)

Verified step by step guidance

1. Identify the structure of the molecule: The image shows a nitrogen atom bonded to two propyl groups. This indicates that the molecule is a secondary amine.
2. Understand the naming conventions for amines: Amines are named based on the alkyl groups attached to the nitrogen atom. The longest carbon chain attached to the nitrogen is used as the base name, and other groups are named as substituents.
3. Analyze the given names: '4-amineheptane' suggests a primary amine with an amine group on the fourth carbon of a heptane chain, which does not match the structure. 'N-propylpropan-1-amine' and 'N-propylaminopropane' both suggest a propyl group attached to a nitrogen, which is consistent with the structure. 'Dipropylamine' indicates two propyl groups attached to the nitrogen, which matches the structure.
4. Determine the incorrect name: Based on the structure, '4-amineheptane' is not an acceptable name because it implies a different structure than what is shown in the image.
5. Conclude the analysis: The molecule is correctly named as 'Dipropylamine', 'N-propylpropan-1-amine', or 'N-propylaminopropane', but not as '4-amineheptane'.