Question

The IUPAC name of the compound shown below is:

• A. 3-bromo-1-chlorocyclohexene
• B. 1-bromo-3-chlorocyclohexene
• C. 2-bromo-6-chlorocyclohex-1-ene
• D. 6-bromo-2-chlorocyclohexene

Answer 1

The correct option is A 3-bromo-1-chlorocyclohexene

The correct numbering to the parent chain is given by
Functional group present is double bond present at position 1, suffix used for it is 'ene'.
-Cl and -Br is present as substituent at position 1 and 3 respectively. thus the correct IUPAC name is
3-bromo-1-chlorocyclohexene