Question

The correct IUPAC name for \( CH_2 = CHCH_2NHCH_3 \) is:

• A. Allylmethylamine
• B. 1-amine-4-pentene
• C. 4-aminopent-1-ene
• D. N-methylprop-2-ene-1-amine

Hint:

The IUPAC name for compounds with multiple functional groups involves identifying the longest chain, numbering the chain to give the functional groups the lowest possible numbers, and naming each substituent.

Answer 1

The Correct Option is C

The given compound is \( CH_2 = CHCH_2NHCH_3 \). To assign the correct IUPAC name, we need to:
1. Identify the longest carbon chain that includes the double bond, which is 5 carbon atoms long. This gives the base name "pentene."
2. Number the chain from the end nearest the double bond, which is at position 1, so the compound is pent-1-ene.
3. Identify the substituents. The amino group (-NH2) is located at position 4 on the chain.
4. The methyl group (-CH3) is attached to the nitrogen atom, which is implied in the name "N-methyl" (indicating the methyl group is attached to the nitrogen atom).
Thus, the correct IUPAC name is 4-aminopent-1-ene.
Therefore, the correct answer is option (C) 4-aminopent-1-ene.