The correct IUPAC name for the following molecule is:

Question

Quizplus · Accepted Answer

The longest chain of carbons in the molecule is 5, so it is a pentyl group with a methyl substituent on the second carbon. The carboxylic acid moiety is attached to the third carbon of the pentyl group, so the parent name is pentanoic acid. The ester is formed by replacing the -ic acid ending of the parent name with -ate. The alkyl group attached to the oxygen atom in the ester group is a 2-methylbutyl group, also known as an isopentyl group. Therefore, the correct IUPAC name is 2-methylbutyl pentanoate or 2-methylbutyl butanoate. Since "pentanoate" contains more carbon atoms than "butanoate," the correct choice is A) 2-methylbutyl butanoate.

The Correct IUPAC Name for the Following Molecule Is