Are Isopropyl Alcohol (2-Propanol) and 1-Propanol tautomers? They both are structural isomers, but are they tautomers too?
Tautomers need to be able to interconvert readily and quickly. This is done via proton transfer. For example in keto-enol tautomerism (https://en.wikipedia.org/wiki/Keto%E2%80%93enol_tautomerism#/media/File:Keto-Enol-Tautomerie.png) the proton on the alpha carbon donates its electrons to form a pi bond between the 2 carbons. As a result the pi bond between the carbonyl carbon and oxygen breaks and the now negatively charged oxygen picks up the proton which was originally lost.

In propan-1-ol and propan-2-ol, the oxygens are on different atoms and there is no way they can interconvert, so they are not tautomers.