Answer:
2,3,4 Trimethyl cyclobutanol
Explanation:
First, note that the compound structure is a cycle, due to the closed structure.
Second, it is an alcohol, due to the presence of the OH group.
According to the IUPAC rules, the first step to name a compound is find which is the most important organic function. In this case, it is the alcohol; for this reason, the name should end with ol.
Since it is a four carbon cycle (note that the carbons that actually are part of the closed shape structure are four), it must be named -due they are for, butanol- and due to the cycle shape, cyclobutanol. But cyclobutanol does not have that methyls bonded to the cycle, so it is necessary to name they, with their positions: position 1 is for the carbon with the most important organic function and the others may be numbered starting for the right hand.
Finally, the name is built with the structure:
[substituents] [cycle name]. Having in mind that [substituents] specifies the number of substituents with the prefixes used for that (di,tri, tetra, etc).
