ENOL
(EE-nahl)
An
alkene with hydroxyl group on one of the carbon atoms of the
double bond Common
clues: Organic
compound; Carbon compound; Chemical compound; Hydroxyl compound;
Certain alkene; Chemical ending or compound; Ascorbic acid, for
one Crossword
puzzle frequency:
6 times a year Video: Organic
chemistry: Why do organic compounds seek tetrahedral geometry?
Vitamin
C is a sugar acid containing an enol bond.
Enol
(or, more officially, but less commonly: alkenol) is an alkene
with hydroxyl group on one of the carbon atoms of the double
bond.
Enols and carbonyl compounds (such as ketones and aldehydes) are
in fact isomers; this is called keto-enol tautomerism:
The
enol form is shown on the left. It is usually unstable, does not
survive long and changes into the keto (ketone) form, shown on
the right.
The words enol and
alkenol are combinations of the words alkene (or just en(e), the
suffix given to alkenes) and alcohol (which represents the enol's
hydroxyl group).
This
article is licensed under the GNU
Free Documentation License.
It uses material from the Wikipedia
article "Enol".
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