Question

IUPAC name fo the compound is

• A. 2-Bromomethyl-3-oxohexanamide
• B. 1-Bromo-2-amido-3-oxohexane
• C. 1-Bromo-2-amido-n-propylketone
• D. 3-Bromo-2-proponyl-propanamide

Answer 1

The correct option is A 2-Bromomethyl-3-oxohexanamide

By IUPAC rules,
Principle functional group must be included in the longest continuous carbon chain. Thus, amide acid group should be in the carbon chain while numbering.
$-CON{H}_2$ is higher in priority than ketone group.
Suffix used for $-CON{H}_2$ group is amide.
Prefix used for ketone group is oxo.
also bromomethyl is present at 2nd position as a substituent.
Since longest carbon chain is of 6 carbon so word root is hex. Hence IUPAC name is 2-Bromomethyl-3-oxohexanamide