Question

What is the correct IUPAC name of the compound shown below?

• A. 3,3-bis-(4-chlorocyclohexyl)-1,4-pentadiyne
• B. bis-(4-chlorocyclohexyl)bis-(ethynyl)methane
• C. bis-(chlorocyclohexyl)pentadiyne
• D. 3,3-dichlorocyclohexyl-pent-1,4-diyne

Answer 1

The correct option is A 3,3-bis-(4-chlorocyclohexyl)-1,4-pentadiyne

The parent chain is the alkyl chain that contains both the triple bonds. Cyclohexyl ring with chloro locant on it are locants on the parent chain. Since, there is locant an locant, the locants on the parent chain are also numbered as: