Shweta Thakur posted an Question
November 10, 2020 • 14:35 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Plz explain this reaction .... h cho ho-c- h vinyl alcohol (tu7stable) m hth opnc h-so when distilled with conc hso. ethvlene glvcol gives 1

H Anhyd. ZnCl CH2 CH Tautomerises H-COH (-H,0) CHOH CHO HO-C- H Vinyl alcohol (tu7stable) m Hth opnc H-SO When distilled with conc HSO. ethvlene glvcol gives 1 4-dioYane which is Acetaldehyde H

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    Dinesh khalmaniya 1 best-answer

    -OH is very poor leaving group. Anhy. ZnCl2 is Lewis Acid and add to -OH increase the leaving group ability and further elimination of H and OH yo give alkene

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    anhydrous ZnCl2 is dehydrating agent and remove H2O

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    further tautomerization give aldehyde

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    ok

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    tautomerize kB krte hain

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    Aldehyde and ketone alcohol k sath tautomerization deta he. ketonic form is morr stable than enolic form so alcohol ko carbonyl me tautomerization krwana hota he

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    got it?

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    check above explanation of this question also

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    thanku so much sir

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