What would be the IUPAC name of the compound shown below?
1,1-Dimethylcyclobutane
The given compound is a cycloalkane with 4 carbons forming the ring. On one of these carbon atoms, there are two methyl substituents.
The numbering is as follows:
Parent ring has 4 carbon atoms.
Word root = but
primary suffix = ane
secondary prefix = 1,1-dimethyl{2 methyl substituent both at C1}
Hence the IUPAC name is
(d) 1,1-Dimethylcyclobutane