Question

Write the IUPAC name of the following:

\[\begin{array}{cc}
\ce{CH3}\phantom{.........}\\
|\phantom{.............}\\
\ce{H3C - C - CH2CH2CH3}\\
|\phantom{.............}\\
\ce{CH3}\phantom{.........}
\end{array}\]

Answer 1

2,2-Dimethylpentane

Explanation:

At carbon-2 of the main chain, there are two methyl groups (–CH3) attached.

Numbering from the left gives substituents at carbon-2.

So, the name will include 2,2-dimethyl.

Main chain: pentane

Substituents: 2,2-dimethyl

IUPAC Name = 2,2-dimethylpentane