# How does 1-methylcyclohexene reacting with KMnO4 produce 1-methyl-1,2-cyclohexanediol?

I am interested in knowing how diols are produced when you introduce a reagent like potassium permanganate to an alkene. What is the mechanism for these reactions? The hydroxyl substituents happens to be at the 1,2 position each time.

• There's a syn-addition of $\ce{-OH}$. Sep 20 '17 at 6:44