JEE Main Chemistry question

Chemistry Aldehydes, Ketones and Carboxylic Acids JEE Main

The reaction, cyclohexanone + Ph₃P=CH₂ →, produces:

(A)Cyclohexane bearing a –CH₃ group
(B)Methylenecyclohexane (ring with exocyclic =CH₂)Correct
(C)Cyclohexane bearing a –CH₃ group (alternative regiochemistry)
(D)Cyclohexylmethanol

Answer: (B)

Solution

This is a Wittig reaction; the phosphorus ylide converts the ketone's

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Question ID VK-149697