enol

1 9.9

A molecule with an OH group on a carbon that is connected by a double bond to another carbon

noun
/ˈiːnɒl/

Specialized

: enol

In organic chemistry, an enol is formed when a hydroxyl group is attached to a carbon atom that is double-bonded to another carbon.

Examples

If it just happens by chance to pass when the enol form is present, well, the wrong base gets inserted and that creates a mutation.
But that can lose a proton to generate an enol, OK.
However, in certain cases the enol can form and get stabilized.
And you remember what those things are called enols, right?
And just like we talked about for the pyruvate kinase reaction, enols much prefer to rearrange into the.
The ketal protecting group is derived from a carefully selected enol ether to which the phenolic hydroxyl is added under acidic conditions (Scheme VI).

Academic text (2001)
The compound exhibited characteristics typical of an enol, including a hydroxyl group attached to a carbon-carbon double bond.
During the experiment, we observed that the enol form of the compound was more reactive than its keto counterpart.

Surface Forms

enol singular

enols plural

Morphology

enol = en + ol

The word is built from specialised chemical combining forms ('en-' for a C=C double bond and '-ol' for an alcohol) that are not productive standalone English words, so learners cannot reliably derive the meaning from common vocabulary.

Etymology

The word enol comes from two parts: en- like in alkene, meaning 'double' for a carbon bond, and -ol meaning 'alcohol'. So an enol is an 'alcohol' that sits on a carbon with a 'double' bond, which explains the name.