Question

According to $IUPAC$ convention, the systematic name of the compound given below is

• A. 4-(4-Bromocyclohexyl)-1 -(3-chlorocyclohexyl)-2- fluorocyclohexane
• B. 5-(4-Bromocyclohexyl)-2-(3-chlorocyclohexyl)-1-fluorocyclohexane
• C. 1 -(3-Chlorocyclohexyl)-4-(4-bromocyclohexyl)-2- fluorocyclohexane
• D. 1 -(4-Bromocyclohexyl)-4-(3-chlorocyclohexyl)-3- fluorocyclohexane

Answer 1

Answer: (A)

Central ring has maximum of three locants, hence it is the parent ring. The lowest number series is 1,2 and 4 as

There is locant in the side rings, hence secondary numbering of side rings are also done