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MCQMediumJEE Main 2023 · 6 April, Shift 1Aldehydes & Ketones

Chemistry Question from JEE Main 2023 · 6 April, Shift 1

Find out the major product from the following reaction:

Cyclohexenone ring with a ketone at the top, one double bond in the ring, and a methyl substituent on the lower right carbon; reagent arrow shows (1) MeMgBr/CuI and (2) nPrI.
  • A
    Option 1 shows a cyclohexene ring bearing a tertiary alcohol and methyl on the same top carbon, with another methyl substituent on the lower right carbon.
  • B
    Option 2 shows a cyclohexanone ring with a propyl substituent on the alpha carbon and two methyl groups attached to the lower right ring carbon.
  • C
    Option 3 shows a cyclohexanone ring with a propyl substituent on one alpha carbon and two methyl groups attached to the adjacent lower right ring carbon.
  • D
    Option 4 shows a cyclohexane ring without carbonyl, bearing a propyl and methyl on the top right carbon and two methyl groups on the lower right carbon.

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