When you react a double bond with potassium permanganate (KMnO4), your first thought may be to make syn-diols, as seen in previous videos. However, looking at the temperature is extremely important. In heat, KMnO4 will actually cleave the double bond, rather than add diols. Let’s check it out.
Concept #1: General properties of strong oxidative cleavage.
Note: I added an extra carbon when rotating the structure to a bondline conformation in the video below :)
Practice: Predict the product of the following reaction.