Question

IUPAC name of this compound

Answer 1

Solution:-

$H_{3}C-\stackrel{\underset{|}{C{H}_3}}{CH}-\underset{\stackrel{|}{C{H}_3}}{\stackrel{\underset{|}{S{O}_{3}H}}{CH}}-CH=C{H}_2$

The above compound contains sulfonic acid group $(-S{O}_{3}H)$ at $C-3$ with $2$ methyl groups $(-C{H}_3)$ at $C-3$ and $C-4$ with a double bond at $C-1$ respectively.

Hence the IUPAC name of the above compound is $3,4$-dimethylpent-$1$-ene-$3$-sulfonic acid.