Question

The IUPAC name of the given compound is _________.

• A. 4,5-dimethyl-5,6-dipropyldecane
• B. 3,4-dimethyl-1,2,3-tripropylheptane
• C. 4,4-dimethyl-5-propylnonane
• D. 4,5-methyl-5,6-propyldecane

Answer 1

The correct option is A 4,5-dimethyl-5,6-dipropyldecane

The given compound can be numbered as shown below.

$\bullet$ The numbering should be done in such a way that the lowest number for the branch comes first in the longest chain.

$\bullet$ There are two methyl substituents at fourth and fifth carbon.

$\bullet$ Also, there are two propyl substituents at fifth and sixth carbon as well.

Following the alphabetical order for the substituents, the IUPAC name of the given compound is 4,5-dimethyl-5,6-dipropyldecane.