Classification and nomenclatureMedium
Question
A compound with a molecular formula of $C_{6}H_{14}$ has two tertiary carbons. Its IUPAC name is :
Options
A.2,3-dimethylbutane
B.2,2-dimethylbutane
C.n-hexane
D.2-methylpentane
Solution
Sol. [Key Concept: Tertiary carbon atoms in alkane isomers]
A tertiary carbon is bonded to three other carbon atoms. In 2,3-dimethylbutane, CH₃–CH(CH₃)–CH(CH₃)–CH₃, both middle carbon atoms are tertiary, so option (1) is correct. Hexane and 2,2-dimethylbutane have no tertiary carbons; the central substituted carbon of 2,2-dimethylbutane is quaternary. 2-methylpentane has one tertiary carbon.
2-methylpentane 
2,3-dimethylbutane 
2,2-dimethylbutane 
Create a free account to view solution
View Solution Free