Manisha posted an Question
February 11, 2021 • 05:20 am 30 points
  • IIT JAM
  • Chemistry (CY)

Phap-ch2 (a) i1)liaih,/dry ether (i) h3o" (catalytic) oet what is the major product (a)? ch2 choh (a) oh (b)

PhaP-CH2 (A) i1)LiAIH,/dry ether (i) H3o" (catalytic) OEt What is the major product (A)? CH2 CHOH (a) OH (b)

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    Dinesh khalmaniya 1 Best Answer

    option D. Explanation- here in first step, wittig reaction takes place on more reactive double bond i.e., cyclohexanone and exocyclic double bond is formed. in next step reduction of another carbonyl takes place. here H- attack on carbonyl carbon so stereochemistry doesn't change of groups attached to it

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    but sir LiAlH4 convert ester to alcohol so why aldehyde is formed in this case?

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    sorry ans is c

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