Question

Write IUPAC names of the following compounds:
(i) CH$_3$CO(CH$_2$)$_4$CH$_3$
(ii) CH$_3$CH$_2$CHBrCH$_2$CH(CH$_3$)CHO

Hint:

For aldehydes, number from the \(-\)CHO carbon as C-1; for ketones, give the carbonyl the lowest possible locant.

Answer 1

(i) Longest chain contains 7 carbons including the carbonyl carbon; the C=O is at C-2.
\[ \boxed{\text{Heptan-2-one}} \]
(ii) Parent chain includes the \(-\mathrm{CHO}\) group \(\Rightarrow\) hexanal; substituents: bromo at C-4 and methyl at C-2.
\[ \boxed{\text{4-Bromo-2-methylhexanal}} \]