The correct IUPAC name of the compound is: — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

The principal chain has 6 carbons containing both multiple bonds. Numbering from right to left gives locants 1 (yne) and 4 (ene), which is lower than the set (2, 5) obtained by numbering from left to right. The methyl substituent is at C5. Therefore, the name is 5-Methylhex-4-en-1-yne.