Consider the following compound : CH3-CH | CH3- CH2-CH2-CH | CH3-CH | CH3 -CH2-CH3 What is IUPAC nomenclature

Question

Consider the following compound : 

\(CH_3-\underset{CH_3}{\underset{|}CH}-CH_2-CH_2-\underset{CH_3}{\underset{|}CH}-\underset{CH_3}{\underset{|}CH}-CH_2-CH_3\)

What is IUPAC nomenclature of above compound?

(1) 2, 5, 6-trimethyloctane 

(2) 3, 4, 7-trimethyloctane 

(3) 2, 4-ethyl, 3-methyloctane 

(4) isopropyl hexane

Answer 1

Correct answer is: (1) 2, 5, 6-trimethyloctane

\(\overset{1}{CH}_3-\overset{2}{\underset{CH_3}{\underset{|}CH}}-\overset{3}{CH}_2-\overset{4}{CH}_2-\overset{5}{\underset{CH_3}{\underset{|}CH}}-\overset{6}{\underset{CH_3}{\underset{|}CH}}-\overset{7}{CH}_2-\overset{8}{CH}_3\)

2, 5, 6-trimethyloctane