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How you get keto form from enol form?

In: Organic Chemistry, Periodic Table [Edit categories]

Answer:

This will only occur if the alpha carbon to the carbonyl group can be protonated. The keto form of acetone (for example), would be a -CH2COCH3. The alpha carbon has lost a hydrogen and is negatively charged, C2 is double bonded to the oxygen. Keto-enol tautomerization occurs to provide some resonance stablization by creating the enol form:

CH2 = C(O-)CH3. The double bond forms between C1 and C2, which pushes the electrons to the oxygen.

First answer by Biochemist Dang. Last edit by Biochemist Dang. Contributor trust: 3 [recommend contributor ]. Question popularity: 1 [recommend question].

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