Tellurols are analogues of alcohols and phenols where tellurium replaces oxygen.[1] Tellurols, selenols, and thiols have similar properties, but tellurols are the least stable.[2] Although they are fundamental representatives of organotellurium compounds, tellurols are lightly studied because of their instability. Tellurol derivatives include telluroesters (RC(O)TeR') and tellurocyanates (RTeCN).