First slide

Nomenclature

Question

IUPAC name of the following structure is

Easy

A

4 - bromo - 1- chloro cyclohexane
B

1 - chloro - 4- bromo cyclohexane
C

1 - bromo - 4- chloro cyclohexane
D

4 - chloro - 1- bromo cyclohexane

Solution

Locant rule cannot be applied. Both locants are at equivalent positions.
Thus, alphabetical order is followed for numbering also ;
Bromo > Chloro ;
IUPAC name :
1 - bromo - 4- chloro cyclohexane ;

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