Answer
Isopropoxybenzene or isopropyl phenyl ether.
Work Step by Step
There is a isopropoxy group attached to the benzene ring so its called Isopropoxybenzene. It can also be called isopropyl phenyl ether because it is an ether, so the groups on the left and right of the carbon are named. In this case, they are phenyl and isopropyl, so it's isopropyl phenyl ether.