Pinnacol – Pinnacolone Rearrangement
(Tata Ulang Pinakol – Pinakolon)
This reaction can happen when there is a two-closed-hydroxil diol compound reacted with strong acid to stabilize its new structure. This reaction will turn a diol become a ketone if it’s possible.Example of Reaction Mechanism for (3-methyl-butane-2,3-diol) :
From that reaction, we can conclude that the acid is act as a catalyst because it is reacted with the compound and formed again in the end of reaction.
Question:Determine the reaction mechanism for this rearrangement reaction!
Remember: For benzene, the easiest species that can be attacked is the branch group.