[John623]

I remember reading that if you have an "ene" ending it takes priority over an "ol" ending and you must replace the "ol" with a hydroxy prefix because you can't have 2 endings/suffixes mixed together. I believe that enes have an alkenyl prefix.

However, when I search the internet for ethenol I get 97,700 results - which is 2 endings mixed together
When I search the internet for hydroxyethene I get 2,050 results
When I search the internet for alkenylethenol I get 0 results

So which one would be correct? I would think hydroxyethene, but ethenol brings up more results.

[Hunter2]

The compound is called Enol or alkenol, so Ethenol would be ok and also the other namings should be fine. I dont know if IUPAC has a special law for it.

When I search the internet for alkenylethenol I get 0 results

I think this is not existing.

http://en.wikipedia.org/wiki/Enol