Why Geminal Diols Are Stable?

(ii) Stability of gem diols mainly depends on the presence of –I group on α-carbon. More is the –I power of the group more will be stability of gem diols. (iii) Intramolecular hydrogen bonding increases stability of gem diols. –I groups present on carbon having gem diol group increases strength of hydrogen bond.

Is Geminal diols stable?

A geminal diol (or gem-diol for short) is any organic compound having two hydroxyl functional groups (-OH) bound to the same carbon atom. Geminal diols are a subclass of the diols, which in turn are a special class of alcohols. Most of the geminal diols are considered unstable.

Which of the following gem diols is most stable?

Therefore, considering the stability factor of gem diol the most stable gem diol is \[\;C{F_3} - C{\left( {OH} \right)_2} - H\]. The correct answer is C.