What is the IUPAC name of the compound below?
A) 2-sec-butyl-2-propylbutane
B) 4-ethyl-3,4-dimethylheptane
C) 3,4-dimethyl-3-propylhexane
D) none of these

Question

What is the IUPAC name of the compound below? 
A) 2-sec-butyl-2-propylbutane 
B) 4-ethyl-3,4-dimethylheptane 
C) 3,4-dimethyl-3-propylhexane 
D) none of these

Quizplus · Accepted Answer

The longest carbon chain in the compound contains 7 carbons, making it a heptane. Starting from either end of the chain, the substituents can be named as follows: 4-ethyl, 3,4-dimethyl. Therefore, the IUPAC name is 4-ethyl-3,4-dimethylheptane. Choice A is incorrect because it implies a branch on the second carbon, which is not present. Choice C is incorrect because it implies a branch on the third carbon, which is also not present.

What Is the IUPAC Name of the Compound Below