The `IUPAC` name of `(CH_(3))_(3) C - CH = CH_(2)` is:

Options

A. (1) `2,2`-dimethylbut-`2`-ene
B. (2) `2,2`-dimethylpent-`3`-ene
C. (3) `3,3`-dimethylbut-`1`-ene
D. (4) hex-`1`-ene

Answer

C

Explanation

The compound is a branched alkene. The numbering of the parent chain should be done from the side closer to the `C=C` bond:
`overset(4)(CH_(3))-underset(3,3-"dimethylbut-1-ene")(underset(CH_(3))underset(|)overset(CH_(3))overset(3|)(C)-overset(2)(CH)=overset(1)(CH_(2)))`