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The IUPAC name of \(\mathrm{CH_3{-}CH_2{-}CO{-}CH_2CH_2{-}CO{-}OCH_3}\) is

Question and options

The IUPAC name of CH3−CH2−CO−CH2CH2−CO−OCH3\mathrm{CH_3{-}CH_2{-}CO{-}CH_2CH_2{-}CO{-}OCH_3} is
  1. Ethyl 4-oxohexanoate
  2. Ethyl 4-oxoheptanoate
  3. Methyl 4-oxoheptanoate
  4. Methyl 4-oxohexanoate

Answer and explanation

Correct answer: D - Methyl 4-oxohexanoate
CH3CH2−CO−CH2CH2−COOCH3\mathrm{CH_3CH_2{-}CO{-}CH_2CH_2{-}COOCH_3}: numbering from the ester carbon as C1, the chain has 6 carbons with the ketone at C4, and the ester alkyl group is methyl: methyl 4-oxohexanoate.

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