Provide common name for given compound.

• A. cyclopentyl-4,4-dimethyl valerate
• B. cyclopentyl-4,4,4-trimethyl butyrate
• C. cyclopentyl-4,4-dimethyl valerate
• D. cyclopentyl-4,4,4-trimethyl butyrate

Answer: (C)

Verified step by step guidance

1. Identify the functional group present in the compound. The structure shows an ester functional group, characterized by the carbonyl group (C=O) adjacent to an ether linkage (O-C).
2. Determine the alkyl group attached to the oxygen atom of the ester. In this structure, a cyclopentyl group is attached to the oxygen atom, which is a five-membered carbon ring.
3. Identify the carbon chain attached to the carbonyl carbon. The chain consists of four carbon atoms, which corresponds to a butyrate group.
4. Examine the substituents on the carbon chain. There are two methyl groups attached to the second carbon of the butyrate chain, making it a 4,4-dimethyl substitution.
5. Combine the identified parts to name the compound. The name is derived from the alkyl group attached to the oxygen (cyclopentyl) and the modified carboxylic acid chain (4,4-dimethyl valerate), resulting in the name cyclopentyl 4,4-dimethyl valerate.