Nomenclature Of Organic Compounds

(i) 2-Chloro-3-methylpentane
Condensed structure:
Main chain = pentane; Cl at C-2; methyl at C-3.
(ii) 1,4-Dibromobut-2-ene
Condensed structure:
But-2-ene backbone ( ); Br at C-1 and C-4.
(iii) 1-Bromo-2,2-dimethylpropane (neopentyl bromide)
Condensed structure:
Choose the propane chain ; Br at C-1; two groups at C-2.
(iv) 1-Bromo-2-methylbut-2-ene
Condensed structure:
But-2-ene backbone ( ); Br at C-1; methyl substituent at C-2.
(v) 1-Chloro-2-methylbenzene (o-chlorotoluene)
Aromatic structure: benzene ring with adjacent substituents at C-1 and at C-2.
Condensed/SMILES: .

The given compound is . 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.