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deeksha sharma Grade: 11
        What is tautomerism? What are the terms "keto and enol"
6 years ago

Answers : (1)

siva sai kumar
32 Points
										

The tautomeric migration of a hydrogen atom from an adjacent carbon atom to a carbonyl group of a keto compound to produce the enol form of the compound; the reverse process of hydrogen atom migration also occurs....IS CALLED TAUTAMERISM


ENOL..An organic compound containing a hydroxyl group bonded to a carbon atom, which in turn is doubly bonded to another carbon atom.


 


Existence of two or more chemical compounds that have the same chemical composition but different structures (isomers) and that convert easily from one to another. A major class of tautomeric reactions involves exchange of a hydrogen atom between two other atoms in the same molecule, in both cases forming a covalent bond. For example, in keto-enol tautomerism, the hydrogen atom bonded to the carbon atom in a carbonyl (keto) group (-CH-C=O; see functional group) moves to the oxygen atom, making it an enol group (-C=C-OH). The keto form predominates in many aldehydes and ketones, the enol form in phenols. Sugars (e.g., glucose) exhibit tautomerism between open (chain) forms and closed (ring) forms.

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6 years ago
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