See image — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

Step 1 - Identify the parent structure: The compound contains a benzene ring as the parent chain, so it will be named as a benzoate or benzene derivative. Step 2 - Identify all substituents and their positions: - Position 1: -COOCH3 (methyl ester / methoxycarbonyl group), which makes the parent name 'methyl benzoate' - Position 2 (ortho to ester): -NO2 (nitro group) - Position 4 (para to ester): -COCH3 (acetyl group) Step 3 - Apply IUPAC nomenclature rules for naming esters with substituents: The principal characteristic group is the carboxylic acid/ester, so the compound is named as a derivative of methyl benzoate. The ring carbon bearing -COOCH3 is C1. Step 4 - Number the ring to give lowest locants to substituents: - C1: -COOCH3 (reference carbon) - C2: -NO2 (ortho position) - C4: -COCH3 (para position) Step 5 - Construct the name: Parent: methyl benzoate Substituents in alphabetical order with locants: 4-acetyl (from -COCH3 at C4) and 2-nitro (from -NO2 at C2) Full name: methyl 4-acetyl-2-nitrobenzoate Step 6 - Verify: The acetyl group at position 4 and nitro group at position 2 relative to the ester-bearing carbon are consistent with the structure drawn. Therefore, the correct answer is methyl 4-acetyl-2-nitrobenzoate.