This organic chemistry video tutorial explains the concept of the keto enol taumerism / tautomerization process. It provides the acid catalyzed reaction mechanism of ketone converting to its enol tautomer and the base catalyzed version as well. This video contains plenty of examples and practice problems of drawing the enol tautomer from the ketone. It explains the relative stability of certain enols due to conjugation of the double bond, formation of an intramolecular hydrogen bond, and the formation of aromatic ring. Examples include acetone, 2,4-pentane dione, and phenol.
